diff options
Diffstat (limited to 'meta-agl-bsp/meta-rcar-gen3/recipes-kernel')
25 files changed, 298 insertions, 1161 deletions
diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/checksum_control.inc b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/checksum_control.inc new file mode 120000 index 000000000..8c7e36ff9 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/checksum_control.inc @@ -0,0 +1 @@ +../../include/checksum_control.inc
\ No newline at end of file diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/checksum_control_files.inc b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/checksum_control_files.inc new file mode 120000 index 000000000..ff4e9a898 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/checksum_control_files.inc @@ -0,0 +1 @@ +../../include/checksum_control_files.inc
\ No newline at end of file diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/kernel-module-gles.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/kernel-module-gles.bbappend index 8a4176fc1..b8882ae49 100644 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/kernel-module-gles.bbappend +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-gles/kernel-module-gles.bbappend @@ -1,4 +1,6 @@ -module_do_compile_prepend() { +require checksum_control.inc + +module_do_compile:prepend() { cd ${S}/build/linux/config/compilers - cp aarch64-poky-linux.mk ${TARGET_SYS}.mk + cp aarch64-linux-gnu.mk ${TARGET_SYS}.mk } diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend index 13163e495..98b8e92c3 100644 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngr.bbappend @@ -1 +1,2 @@ -KERNEL_MODULE_AUTOLOAD = "mmngr" +KERNEL_MODULE_AUTOLOAD:append = " mmngr" +KERNEL_MODULE_PACKAGE_SUFFIX = "" diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf.bbappend index 1587b25b6..fbff56fff 100644 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf.bbappend +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf.bbappend @@ -1 +1,2 @@ -KERNEL_MODULE_AUTOLOAD = "mmngrbuf" +KERNEL_MODULE_AUTOLOAD:append = " mmngrbuf" +KERNEL_MODULE_PACKAGE_SUFFIX = "" diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/checksum_control.inc b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/checksum_control.inc new file mode 120000 index 000000000..8c7e36ff9 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/checksum_control.inc @@ -0,0 +1 @@ +../../include/checksum_control.inc
\ No newline at end of file diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/checksum_control_files.inc b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/checksum_control_files.inc new file mode 120000 index 000000000..ff4e9a898 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/checksum_control_files.inc @@ -0,0 +1 @@ +../../include/checksum_control_files.inc
\ No newline at end of file diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/kernel-module-uvcs-drv.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/kernel-module-uvcs-drv.bbappend index f1450747e..1fa00a859 100644 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/kernel-module-uvcs-drv.bbappend +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-uvcs/kernel-module-uvcs-drv.bbappend @@ -1 +1,3 @@ +require checksum_control.inc + KERNEL_MODULE_AUTOLOAD = "uvcs_drv" diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-vspmif/kernel-module-vspm-if.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-vspmif/kernel-module-vspm-if.bbappend new file mode 100644 index 000000000..5efe01045 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-vspmif/kernel-module-vspm-if.bbappend @@ -0,0 +1,2 @@ +KERNEL_MODULE_AUTOLOAD:append = " vspm_if" +KERNEL_MODULE_PACKAGE_SUFFIX = "" diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-vspmif/kernel-module-vspmif.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-vspmif/kernel-module-vspmif.bbappend deleted file mode 100644 index 098e1b0a9..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/kernel-module-vspmif/kernel-module-vspmif.bbappend +++ /dev/null @@ -1 +0,0 @@ -KERNEL_MODULE_AUTOLOAD = "vspm_if" diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0001-mm-larger-stack-guard-gap-between-vmas.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0001-mm-larger-stack-guard-gap-between-vmas.patch deleted file mode 100644 index 08a4ec717..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0001-mm-larger-stack-guard-gap-between-vmas.patch +++ /dev/null @@ -1,935 +0,0 @@ -From 0f637a08fa3b048f1e0b0d3dc8f5cb9df3368b5d Mon Sep 17 00:00:00 2001 -From: Hugh Dickins <hughd@google.com> -Date: Mon, 19 Jun 2017 04:03:24 -0700 -Subject: [PATCH 1/3] mm: larger stack guard gap, between vmas - -commit 1be7107fbe18eed3e319a6c3e83c78254b693acb upstream. - -Stack guard page is a useful feature to reduce a risk of stack smashing -into a different mapping. We have been using a single page gap which -is sufficient to prevent having stack adjacent to a different mapping. -But this seems to be insufficient in the light of the stack usage in -userspace. E.g. glibc uses as large as 64kB alloca() in many commonly -used functions. Others use constructs liks gid_t buffer[NGROUPS_MAX] -which is 256kB or stack strings with MAX_ARG_STRLEN. - -This will become especially dangerous for suid binaries and the default -no limit for the stack size limit because those applications can be -tricked to consume a large portion of the stack and a single glibc call -could jump over the guard page. These attacks are not theoretical, -unfortunatelly. - -Make those attacks less probable by increasing the stack guard gap -to 1MB (on systems with 4k pages; but make it depend on the page size -because systems with larger base pages might cap stack allocations in -the PAGE_SIZE units) which should cover larger alloca() and VLA stack -allocations. It is obviously not a full fix because the problem is -somehow inherent, but it should reduce attack space a lot. - -One could argue that the gap size should be configurable from userspace, -but that can be done later when somebody finds that the new 1MB is wrong -for some special case applications. For now, add a kernel command line -option (stack_guard_gap) to specify the stack gap size (in page units). - -Implementation wise, first delete all the old code for stack guard page: -because although we could get away with accounting one extra page in a -stack vma, accounting a larger gap can break userspace - case in point, -a program run with "ulimit -S -v 20000" failed when the 1MB gap was -counted for RLIMIT_AS; similar problems could come with RLIMIT_MLOCK -and strict non-overcommit mode. - -Instead of keeping gap inside the stack vma, maintain the stack guard -gap as a gap between vmas: using vm_start_gap() in place of vm_start -(or vm_end_gap() in place of vm_end if VM_GROWSUP) in just those few -places which need to respect the gap - mainly arch_get_unmapped_area(), -and and the vma tree's subtree_gap support for that. - -Original-patch-by: Oleg Nesterov <oleg@redhat.com> -Original-patch-by: Michal Hocko <mhocko@suse.com> -Signed-off-by: Hugh Dickins <hughd@google.com> -Acked-by: Michal Hocko <mhocko@suse.com> -Tested-by: Helge Deller <deller@gmx.de> # parisc -Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> -[wt: backport to 4.11: adjust context] -[wt: backport to 4.9: adjust context ; kernel doc was not in admin-guide] -Signed-off-by: Willy Tarreau <w@1wt.eu> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - Documentation/kernel-parameters.txt | 7 ++ - arch/arc/mm/mmap.c | 2 +- - arch/arm/mm/mmap.c | 4 +- - arch/frv/mm/elf-fdpic.c | 2 +- - arch/mips/mm/mmap.c | 2 +- - arch/parisc/kernel/sys_parisc.c | 15 ++-- - arch/powerpc/mm/hugetlbpage-radix.c | 2 +- - arch/powerpc/mm/mmap.c | 4 +- - arch/powerpc/mm/slice.c | 2 +- - arch/s390/mm/mmap.c | 4 +- - arch/sh/mm/mmap.c | 4 +- - arch/sparc/kernel/sys_sparc_64.c | 4 +- - arch/sparc/mm/hugetlbpage.c | 2 +- - arch/tile/mm/hugetlbpage.c | 2 +- - arch/x86/kernel/sys_x86_64.c | 4 +- - arch/x86/mm/hugetlbpage.c | 2 +- - arch/xtensa/kernel/syscall.c | 2 +- - fs/hugetlbfs/inode.c | 2 +- - fs/proc/task_mmu.c | 4 - - include/linux/mm.h | 53 ++++++------- - mm/gup.c | 5 -- - mm/memory.c | 38 --------- - mm/mmap.c | 149 +++++++++++++++++++++--------------- - 23 files changed, 152 insertions(+), 163 deletions(-) - -diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt -index 38556cd..bf3ecf8 100644 ---- a/Documentation/kernel-parameters.txt -+++ b/Documentation/kernel-parameters.txt -@@ -3918,6 +3918,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. - spia_pedr= - spia_peddr= - -+ stack_guard_gap= [MM] -+ override the default stack gap protection. The value -+ is in page units and it defines how many pages prior -+ to (for stacks growing down) resp. after (for stacks -+ growing up) the main stack are reserved for no other -+ mapping. Default value is 256 pages. -+ - stacktrace [FTRACE] - Enabled the stack tracer on boot up. - -diff --git a/arch/arc/mm/mmap.c b/arch/arc/mm/mmap.c -index 2e06d56..cf4ae69 100644 ---- a/arch/arc/mm/mmap.c -+++ b/arch/arc/mm/mmap.c -@@ -64,7 +64,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c -index 66353ca..641334e 100644 ---- a/arch/arm/mm/mmap.c -+++ b/arch/arm/mm/mmap.c -@@ -89,7 +89,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -@@ -140,7 +140,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c -index 836f147..efa59f1 100644 ---- a/arch/frv/mm/elf-fdpic.c -+++ b/arch/frv/mm/elf-fdpic.c -@@ -74,7 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - addr = PAGE_ALIGN(addr); - vma = find_vma(current->mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - goto success; - } - -diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c -index d08ea3f..a44052c 100644 ---- a/arch/mips/mm/mmap.c -+++ b/arch/mips/mm/mmap.c -@@ -92,7 +92,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp, - - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c -index 0a393a0..1d7691f 100644 ---- a/arch/parisc/kernel/sys_parisc.c -+++ b/arch/parisc/kernel/sys_parisc.c -@@ -88,7 +88,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - unsigned long len, unsigned long pgoff, unsigned long flags) - { - struct mm_struct *mm = current->mm; -- struct vm_area_struct *vma; -+ struct vm_area_struct *vma, *prev; - unsigned long task_size = TASK_SIZE; - int do_color_align, last_mmap; - struct vm_unmapped_area_info info; -@@ -115,9 +115,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - else - addr = PAGE_ALIGN(addr); - -- vma = find_vma(mm, addr); -+ vma = find_vma_prev(mm, addr, &prev); - if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma)) && -+ (!prev || addr >= vm_end_gap(prev))) - goto found_addr; - } - -@@ -141,7 +142,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - const unsigned long len, const unsigned long pgoff, - const unsigned long flags) - { -- struct vm_area_struct *vma; -+ struct vm_area_struct *vma, *prev; - struct mm_struct *mm = current->mm; - unsigned long addr = addr0; - int do_color_align, last_mmap; -@@ -175,9 +176,11 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - addr = COLOR_ALIGN(addr, last_mmap, pgoff); - else - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -+ -+ vma = find_vma_prev(mm, addr, &prev); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma)) && -+ (!prev || addr >= vm_end_gap(prev))) - goto found_addr; - } - -diff --git a/arch/powerpc/mm/hugetlbpage-radix.c b/arch/powerpc/mm/hugetlbpage-radix.c -index 35254a6..a2b2d97 100644 ---- a/arch/powerpc/mm/hugetlbpage-radix.c -+++ b/arch/powerpc/mm/hugetlbpage-radix.c -@@ -65,7 +65,7 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - /* -diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c -index 2f1e443..5bc2845 100644 ---- a/arch/powerpc/mm/mmap.c -+++ b/arch/powerpc/mm/mmap.c -@@ -106,7 +106,7 @@ radix__arch_get_unmapped_area(struct file *filp, unsigned long addr, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && addr >= mmap_min_addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -@@ -142,7 +142,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && addr >= mmap_min_addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c -index 2b27458..c4d5c9c 100644 ---- a/arch/powerpc/mm/slice.c -+++ b/arch/powerpc/mm/slice.c -@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr, - if ((mm->task_size - len) < addr) - return 0; - vma = find_vma(mm, addr); -- return (!vma || (addr + len) <= vma->vm_start); -+ return (!vma || (addr + len) <= vm_start_gap(vma)); - } - - static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice) -diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c -index eb9df28..812368f 100644 ---- a/arch/s390/mm/mmap.c -+++ b/arch/s390/mm/mmap.c -@@ -98,7 +98,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && addr >= mmap_min_addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -@@ -136,7 +136,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && addr >= mmap_min_addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c -index 6777177..7df7d59 100644 ---- a/arch/sh/mm/mmap.c -+++ b/arch/sh/mm/mmap.c -@@ -63,7 +63,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -@@ -113,7 +113,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c -index fe8b8ee..02e05e2 100644 ---- a/arch/sparc/kernel/sys_sparc_64.c -+++ b/arch/sparc/kernel/sys_sparc_64.c -@@ -118,7 +118,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi - - vma = find_vma(mm, addr); - if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -@@ -181,7 +181,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - - vma = find_vma(mm, addr); - if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c -index 988acc8..58cde8d 100644 ---- a/arch/sparc/mm/hugetlbpage.c -+++ b/arch/sparc/mm/hugetlbpage.c -@@ -116,7 +116,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - addr = ALIGN(addr, HPAGE_SIZE); - vma = find_vma(mm, addr); - if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - if (mm->get_unmapped_area == arch_get_unmapped_area) -diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c -index 77ceaa3..67508b2 100644 ---- a/arch/tile/mm/hugetlbpage.c -+++ b/arch/tile/mm/hugetlbpage.c -@@ -232,7 +232,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - if (current->mm->get_unmapped_area == arch_get_unmapped_area) -diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c -index a55ed63..1119414 100644 ---- a/arch/x86/kernel/sys_x86_64.c -+++ b/arch/x86/kernel/sys_x86_64.c -@@ -140,7 +140,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (end - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -@@ -183,7 +183,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c -index 2ae8584..fe342e8 100644 ---- a/arch/x86/mm/hugetlbpage.c -+++ b/arch/x86/mm/hugetlbpage.c -@@ -144,7 +144,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - if (mm->get_unmapped_area == arch_get_unmapped_area) -diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c -index 83cf496..3aaaae1 100644 ---- a/arch/xtensa/kernel/syscall.c -+++ b/arch/xtensa/kernel/syscall.c -@@ -87,7 +87,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vmm || addr + len <= vmm->vm_start) -+ if (!vmm || addr + len <= vm_start_gap(vmm)) - return addr; - addr = vmm->vm_end; - if (flags & MAP_SHARED) -diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c -index 4fb7b10..704fa0b 100644 ---- a/fs/hugetlbfs/inode.c -+++ b/fs/hugetlbfs/inode.c -@@ -191,7 +191,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); - if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma))) - return addr; - } - -diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c -index 35b92d8..c5f2136 100644 ---- a/fs/proc/task_mmu.c -+++ b/fs/proc/task_mmu.c -@@ -299,11 +299,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid) - - /* We don't show the stack guard page in /proc/maps */ - start = vma->vm_start; -- if (stack_guard_page_start(vma, start)) -- start += PAGE_SIZE; - end = vma->vm_end; -- if (stack_guard_page_end(vma, end)) -- end -= PAGE_SIZE; - - seq_setwidth(m, 25 + sizeof(void *) * 6 - 1); - seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ", -diff --git a/include/linux/mm.h b/include/linux/mm.h -index a92c8d7..451251b 100644 ---- a/include/linux/mm.h -+++ b/include/linux/mm.h -@@ -1354,39 +1354,11 @@ int clear_page_dirty_for_io(struct page *page); - - int get_cmdline(struct task_struct *task, char *buffer, int buflen); - --/* Is the vma a continuation of the stack vma above it? */ --static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr) --{ -- return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN); --} -- - static inline bool vma_is_anonymous(struct vm_area_struct *vma) - { - return !vma->vm_ops; - } - --static inline int stack_guard_page_start(struct vm_area_struct *vma, -- unsigned long addr) --{ -- return (vma->vm_flags & VM_GROWSDOWN) && -- (vma->vm_start == addr) && -- !vma_growsdown(vma->vm_prev, addr); --} -- --/* Is the vma a continuation of the stack vma below it? */ --static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr) --{ -- return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP); --} -- --static inline int stack_guard_page_end(struct vm_area_struct *vma, -- unsigned long addr) --{ -- return (vma->vm_flags & VM_GROWSUP) && -- (vma->vm_end == addr) && -- !vma_growsup(vma->vm_next, addr); --} -- - int vma_is_stack_for_current(struct vm_area_struct *vma); - - extern unsigned long move_page_tables(struct vm_area_struct *vma, -@@ -2125,6 +2097,7 @@ void page_cache_async_readahead(struct address_space *mapping, - pgoff_t offset, - unsigned long size); - -+extern unsigned long stack_guard_gap; - /* Generic expand stack which grows the stack according to GROWS{UP,DOWN} */ - extern int expand_stack(struct vm_area_struct *vma, unsigned long address); - -@@ -2153,6 +2126,30 @@ static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * m - return vma; - } - -+static inline unsigned long vm_start_gap(struct vm_area_struct *vma) -+{ -+ unsigned long vm_start = vma->vm_start; -+ -+ if (vma->vm_flags & VM_GROWSDOWN) { -+ vm_start -= stack_guard_gap; -+ if (vm_start > vma->vm_start) -+ vm_start = 0; -+ } -+ return vm_start; -+} -+ -+static inline unsigned long vm_end_gap(struct vm_area_struct *vma) -+{ -+ unsigned long vm_end = vma->vm_end; -+ -+ if (vma->vm_flags & VM_GROWSUP) { -+ vm_end += stack_guard_gap; -+ if (vm_end < vma->vm_end) -+ vm_end = -PAGE_SIZE; -+ } -+ return vm_end; -+} -+ - static inline unsigned long vma_pages(struct vm_area_struct *vma) - { - return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; -diff --git a/mm/gup.c b/mm/gup.c -index ec4f827..c63a034 100644 ---- a/mm/gup.c -+++ b/mm/gup.c -@@ -370,11 +370,6 @@ static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma, - /* mlock all present pages, but do not fault in new pages */ - if ((*flags & (FOLL_POPULATE | FOLL_MLOCK)) == FOLL_MLOCK) - return -ENOENT; -- /* For mm_populate(), just skip the stack guard page. */ -- if ((*flags & FOLL_POPULATE) && -- (stack_guard_page_start(vma, address) || -- stack_guard_page_end(vma, address + PAGE_SIZE))) -- return -ENOENT; - if (*flags & FOLL_WRITE) - fault_flags |= FAULT_FLAG_WRITE; - if (*flags & FOLL_REMOTE) -diff --git a/mm/memory.c b/mm/memory.c -index e18c57b..2868911 100644 ---- a/mm/memory.c -+++ b/mm/memory.c -@@ -2699,40 +2699,6 @@ int do_swap_page(struct fault_env *fe, pte_t orig_pte) - } - - /* -- * This is like a special single-page "expand_{down|up}wards()", -- * except we must first make sure that 'address{-|+}PAGE_SIZE' -- * doesn't hit another vma. -- */ --static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address) --{ -- address &= PAGE_MASK; -- if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) { -- struct vm_area_struct *prev = vma->vm_prev; -- -- /* -- * Is there a mapping abutting this one below? -- * -- * That's only ok if it's the same stack mapping -- * that has gotten split.. -- */ -- if (prev && prev->vm_end == address) -- return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM; -- -- return expand_downwards(vma, address - PAGE_SIZE); -- } -- if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) { -- struct vm_area_struct *next = vma->vm_next; -- -- /* As VM_GROWSDOWN but s/below/above/ */ -- if (next && next->vm_start == address + PAGE_SIZE) -- return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM; -- -- return expand_upwards(vma, address + PAGE_SIZE); -- } -- return 0; --} -- --/* - * We enter with non-exclusive mmap_sem (to exclude vma changes, - * but allow concurrent faults), and pte mapped but not yet locked. - * We return with mmap_sem still held, but pte unmapped and unlocked. -@@ -2748,10 +2714,6 @@ static int do_anonymous_page(struct fault_env *fe) - if (vma->vm_flags & VM_SHARED) - return VM_FAULT_SIGBUS; - -- /* Check if we need to add a guard page to the stack */ -- if (check_stack_guard_page(vma, fe->address) < 0) -- return VM_FAULT_SIGSEGV; -- - /* - * Use pte_alloc() instead of pte_alloc_map(). We can't run - * pte_offset_map() on pmds where a huge pmd might be created -diff --git a/mm/mmap.c b/mm/mmap.c -index 1af87c1..26542b3 100644 ---- a/mm/mmap.c -+++ b/mm/mmap.c -@@ -183,6 +183,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) - unsigned long retval; - unsigned long newbrk, oldbrk; - struct mm_struct *mm = current->mm; -+ struct vm_area_struct *next; - unsigned long min_brk; - bool populate; - -@@ -228,7 +229,8 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) - } - - /* Check against existing mmap mappings. */ -- if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) -+ next = find_vma(mm, oldbrk); -+ if (next && newbrk + PAGE_SIZE > vm_start_gap(next)) - goto out; - - /* Ok, looks good - let it rip. */ -@@ -251,10 +253,22 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) - - static long vma_compute_subtree_gap(struct vm_area_struct *vma) - { -- unsigned long max, subtree_gap; -- max = vma->vm_start; -- if (vma->vm_prev) -- max -= vma->vm_prev->vm_end; -+ unsigned long max, prev_end, subtree_gap; -+ -+ /* -+ * Note: in the rare case of a VM_GROWSDOWN above a VM_GROWSUP, we -+ * allow two stack_guard_gaps between them here, and when choosing -+ * an unmapped area; whereas when expanding we only require one. -+ * That's a little inconsistent, but keeps the code here simpler. -+ */ -+ max = vm_start_gap(vma); -+ if (vma->vm_prev) { -+ prev_end = vm_end_gap(vma->vm_prev); -+ if (max > prev_end) -+ max -= prev_end; -+ else -+ max = 0; -+ } - if (vma->vm_rb.rb_left) { - subtree_gap = rb_entry(vma->vm_rb.rb_left, - struct vm_area_struct, vm_rb)->rb_subtree_gap; -@@ -350,7 +364,7 @@ static void validate_mm(struct mm_struct *mm) - anon_vma_unlock_read(anon_vma); - } - -- highest_address = vma->vm_end; -+ highest_address = vm_end_gap(vma); - vma = vma->vm_next; - i++; - } -@@ -539,7 +553,7 @@ void __vma_link_rb(struct mm_struct *mm, struct vm_area_struct *vma, - if (vma->vm_next) - vma_gap_update(vma->vm_next); - else -- mm->highest_vm_end = vma->vm_end; -+ mm->highest_vm_end = vm_end_gap(vma); - - /* - * vma->vm_prev wasn't known when we followed the rbtree to find the -@@ -854,7 +868,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start, - vma_gap_update(vma); - if (end_changed) { - if (!next) -- mm->highest_vm_end = end; -+ mm->highest_vm_end = vm_end_gap(vma); - else if (!adjust_next) - vma_gap_update(next); - } -@@ -939,7 +953,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start, - * mm->highest_vm_end doesn't need any update - * in remove_next == 1 case. - */ -- VM_WARN_ON(mm->highest_vm_end != end); -+ VM_WARN_ON(mm->highest_vm_end != vm_end_gap(vma)); - } - } - if (insert && file) -@@ -1783,7 +1797,7 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info) - - while (true) { - /* Visit left subtree if it looks promising */ -- gap_end = vma->vm_start; -+ gap_end = vm_start_gap(vma); - if (gap_end >= low_limit && vma->vm_rb.rb_left) { - struct vm_area_struct *left = - rb_entry(vma->vm_rb.rb_left, -@@ -1794,7 +1808,7 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info) - } - } - -- gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0; -+ gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0; - check_current: - /* Check if current node has a suitable gap */ - if (gap_start > high_limit) -@@ -1821,8 +1835,8 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info) - vma = rb_entry(rb_parent(prev), - struct vm_area_struct, vm_rb); - if (prev == vma->vm_rb.rb_left) { -- gap_start = vma->vm_prev->vm_end; -- gap_end = vma->vm_start; -+ gap_start = vm_end_gap(vma->vm_prev); -+ gap_end = vm_start_gap(vma); - goto check_current; - } - } -@@ -1886,7 +1900,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info) - - while (true) { - /* Visit right subtree if it looks promising */ -- gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0; -+ gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0; - if (gap_start <= high_limit && vma->vm_rb.rb_right) { - struct vm_area_struct *right = - rb_entry(vma->vm_rb.rb_right, -@@ -1899,7 +1913,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info) - - check_current: - /* Check if current node has a suitable gap */ -- gap_end = vma->vm_start; -+ gap_end = vm_start_gap(vma); - if (gap_end < low_limit) - return -ENOMEM; - if (gap_start <= high_limit && gap_end - gap_start >= length) -@@ -1925,7 +1939,7 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info) - struct vm_area_struct, vm_rb); - if (prev == vma->vm_rb.rb_right) { - gap_start = vma->vm_prev ? -- vma->vm_prev->vm_end : 0; -+ vm_end_gap(vma->vm_prev) : 0; - goto check_current; - } - } -@@ -1963,7 +1977,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - unsigned long len, unsigned long pgoff, unsigned long flags) - { - struct mm_struct *mm = current->mm; -- struct vm_area_struct *vma; -+ struct vm_area_struct *vma, *prev; - struct vm_unmapped_area_info info; - - if (len > TASK_SIZE - mmap_min_addr) -@@ -1974,9 +1988,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, - - if (addr) { - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -+ vma = find_vma_prev(mm, addr, &prev); - if (TASK_SIZE - len >= addr && addr >= mmap_min_addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma)) && -+ (!prev || addr >= vm_end_gap(prev))) - return addr; - } - -@@ -1999,7 +2014,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - const unsigned long len, const unsigned long pgoff, - const unsigned long flags) - { -- struct vm_area_struct *vma; -+ struct vm_area_struct *vma, *prev; - struct mm_struct *mm = current->mm; - unsigned long addr = addr0; - struct vm_unmapped_area_info info; -@@ -2014,9 +2029,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -+ vma = find_vma_prev(mm, addr, &prev); - if (TASK_SIZE - len >= addr && addr >= mmap_min_addr && -- (!vma || addr + len <= vma->vm_start)) -+ (!vma || addr + len <= vm_start_gap(vma)) && -+ (!prev || addr >= vm_end_gap(prev))) - return addr; - } - -@@ -2151,21 +2167,19 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr, - * update accounting. This is shared with both the - * grow-up and grow-down cases. - */ --static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, unsigned long grow) -+static int acct_stack_growth(struct vm_area_struct *vma, -+ unsigned long size, unsigned long grow) - { - struct mm_struct *mm = vma->vm_mm; - struct rlimit *rlim = current->signal->rlim; -- unsigned long new_start, actual_size; -+ unsigned long new_start; - - /* address space limit tests */ - if (!may_expand_vm(mm, vma->vm_flags, grow)) - return -ENOMEM; - - /* Stack limit test */ -- actual_size = size; -- if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN))) -- actual_size -= PAGE_SIZE; -- if (actual_size > READ_ONCE(rlim[RLIMIT_STACK].rlim_cur)) -+ if (size > READ_ONCE(rlim[RLIMIT_STACK].rlim_cur)) - return -ENOMEM; - - /* mlock limit tests */ -@@ -2203,17 +2217,30 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns - int expand_upwards(struct vm_area_struct *vma, unsigned long address) - { - struct mm_struct *mm = vma->vm_mm; -+ struct vm_area_struct *next; -+ unsigned long gap_addr; - int error = 0; - - if (!(vma->vm_flags & VM_GROWSUP)) - return -EFAULT; - - /* Guard against wrapping around to address 0. */ -- if (address < PAGE_ALIGN(address+4)) -- address = PAGE_ALIGN(address+4); -- else -+ address &= PAGE_MASK; -+ address += PAGE_SIZE; -+ if (!address) - return -ENOMEM; - -+ /* Enforce stack_guard_gap */ -+ gap_addr = address + stack_guard_gap; -+ if (gap_addr < address) -+ return -ENOMEM; -+ next = vma->vm_next; -+ if (next && next->vm_start < gap_addr) { -+ if (!(next->vm_flags & VM_GROWSUP)) -+ return -ENOMEM; -+ /* Check that both stack segments have the same anon_vma? */ -+ } -+ - /* We must make sure the anon_vma is allocated. */ - if (unlikely(anon_vma_prepare(vma))) - return -ENOMEM; -@@ -2257,7 +2284,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) - if (vma->vm_next) - vma_gap_update(vma->vm_next); - else -- mm->highest_vm_end = address; -+ mm->highest_vm_end = vm_end_gap(vma); - spin_unlock(&mm->page_table_lock); - - perf_event_mmap(vma); -@@ -2278,6 +2305,8 @@ int expand_downwards(struct vm_area_struct *vma, - unsigned long address) - { - struct mm_struct *mm = vma->vm_mm; -+ struct vm_area_struct *prev; -+ unsigned long gap_addr; - int error; - - address &= PAGE_MASK; -@@ -2285,6 +2314,17 @@ int expand_downwards(struct vm_area_struct *vma, - if (error) - return error; - -+ /* Enforce stack_guard_gap */ -+ gap_addr = address - stack_guard_gap; -+ if (gap_addr > address) -+ return -ENOMEM; -+ prev = vma->vm_prev; -+ if (prev && prev->vm_end > gap_addr) { -+ if (!(prev->vm_flags & VM_GROWSDOWN)) -+ return -ENOMEM; -+ /* Check that both stack segments have the same anon_vma? */ -+ } -+ - /* We must make sure the anon_vma is allocated. */ - if (unlikely(anon_vma_prepare(vma))) - return -ENOMEM; -@@ -2339,28 +2379,25 @@ int expand_downwards(struct vm_area_struct *vma, - return error; - } - --/* -- * Note how expand_stack() refuses to expand the stack all the way to -- * abut the next virtual mapping, *unless* that mapping itself is also -- * a stack mapping. We want to leave room for a guard page, after all -- * (the guard page itself is not added here, that is done by the -- * actual page faulting logic) -- * -- * This matches the behavior of the guard page logic (see mm/memory.c: -- * check_stack_guard_page()), which only allows the guard page to be -- * removed under these circumstances. -- */ -+/* enforced gap between the expanding stack and other mappings. */ -+unsigned long stack_guard_gap = 256UL<<PAGE_SHIFT; -+ -+static int __init cmdline_parse_stack_guard_gap(char *p) -+{ -+ unsigned long val; -+ char *endptr; -+ -+ val = simple_strtoul(p, &endptr, 10); -+ if (!*endptr) -+ stack_guard_gap = val << PAGE_SHIFT; -+ -+ return 0; -+} -+__setup("stack_guard_gap=", cmdline_parse_stack_guard_gap); -+ - #ifdef CONFIG_STACK_GROWSUP - int expand_stack(struct vm_area_struct *vma, unsigned long address) - { -- struct vm_area_struct *next; -- -- address &= PAGE_MASK; -- next = vma->vm_next; -- if (next && next->vm_start == address + PAGE_SIZE) { -- if (!(next->vm_flags & VM_GROWSUP)) -- return -ENOMEM; -- } - return expand_upwards(vma, address); - } - -@@ -2382,14 +2419,6 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr) - #else - int expand_stack(struct vm_area_struct *vma, unsigned long address) - { -- struct vm_area_struct *prev; -- -- address &= PAGE_MASK; -- prev = vma->vm_prev; -- if (prev && prev->vm_end == address) { -- if (!(prev->vm_flags & VM_GROWSDOWN)) -- return -ENOMEM; -- } - return expand_downwards(vma, address); - } - -@@ -2487,7 +2516,7 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma, - vma->vm_prev = prev; - vma_gap_update(vma); - } else -- mm->highest_vm_end = prev ? prev->vm_end : 0; -+ mm->highest_vm_end = prev ? vm_end_gap(prev) : 0; - tail_vma->vm_next = NULL; - - /* Kill the cache */ --- -2.1.4 - diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0002-Allow-stack-to-grow-up-to-address-space-limit.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0002-Allow-stack-to-grow-up-to-address-space-limit.patch deleted file mode 100644 index 10e247197..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0002-Allow-stack-to-grow-up-to-address-space-limit.patch +++ /dev/null @@ -1,51 +0,0 @@ -From 9e8b9c4bd3b16bd70d8be10c465bd0a91ac569fa Mon Sep 17 00:00:00 2001 -From: Helge Deller <deller@gmx.de> -Date: Mon, 19 Jun 2017 17:34:05 +0200 -Subject: [PATCH 2/3] Allow stack to grow up to address space limit - -commit bd726c90b6b8ce87602208701b208a208e6d5600 upstream. - -Fix expand_upwards() on architectures with an upward-growing stack (parisc, -metag and partly IA-64) to allow the stack to reliably grow exactly up to -the address space limit given by TASK_SIZE. - -Signed-off-by: Helge Deller <deller@gmx.de> -Acked-by: Hugh Dickins <hughd@google.com> -Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - mm/mmap.c | 13 ++++++++----- - 1 file changed, 8 insertions(+), 5 deletions(-) - -diff --git a/mm/mmap.c b/mm/mmap.c -index 26542b3..d71a61e 100644 ---- a/mm/mmap.c -+++ b/mm/mmap.c -@@ -2224,16 +2224,19 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) - if (!(vma->vm_flags & VM_GROWSUP)) - return -EFAULT; - -- /* Guard against wrapping around to address 0. */ -+ /* Guard against exceeding limits of the address space. */ - address &= PAGE_MASK; -- address += PAGE_SIZE; -- if (!address) -+ if (address >= TASK_SIZE) - return -ENOMEM; -+ address += PAGE_SIZE; - - /* Enforce stack_guard_gap */ - gap_addr = address + stack_guard_gap; -- if (gap_addr < address) -- return -ENOMEM; -+ -+ /* Guard against overflow */ -+ if (gap_addr < address || gap_addr > TASK_SIZE) -+ gap_addr = TASK_SIZE; -+ - next = vma->vm_next; - if (next && next->vm_start < gap_addr) { - if (!(next->vm_flags & VM_GROWSUP)) --- -2.1.4 - diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0003-mm-fix-new-crash-in-unmapped_area_topdown.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0003-mm-fix-new-crash-in-unmapped_area_topdown.patch deleted file mode 100644 index cb6614964..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0003-mm-fix-new-crash-in-unmapped_area_topdown.patch +++ /dev/null @@ -1,52 +0,0 @@ -From 6c98443e18289db3ff9afb68575a607cea468ae0 Mon Sep 17 00:00:00 2001 -From: Hugh Dickins <hughd@google.com> -Date: Tue, 20 Jun 2017 02:10:44 -0700 -Subject: [PATCH 3/3] mm: fix new crash in unmapped_area_topdown() - -commit f4cb767d76cf7ee72f97dd76f6cfa6c76a5edc89 upstream. - -Trinity gets kernel BUG at mm/mmap.c:1963! in about 3 minutes of -mmap testing. That's the VM_BUG_ON(gap_end < gap_start) at the -end of unmapped_area_topdown(). Linus points out how MAP_FIXED -(which does not have to respect our stack guard gap intentions) -could result in gap_end below gap_start there. Fix that, and -the similar case in its alternative, unmapped_area(). - -Fixes: 1be7107fbe18 ("mm: larger stack guard gap, between vmas") -Reported-by: Dave Jones <davej@codemonkey.org.uk> -Debugged-by: Linus Torvalds <torvalds@linux-foundation.org> -Signed-off-by: Hugh Dickins <hughd@google.com> -Acked-by: Michal Hocko <mhocko@suse.com> -Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - mm/mmap.c | 6 ++++-- - 1 file changed, 4 insertions(+), 2 deletions(-) - -diff --git a/mm/mmap.c b/mm/mmap.c -index d71a61e..145d3d5 100644 ---- a/mm/mmap.c -+++ b/mm/mmap.c -@@ -1813,7 +1813,8 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info) - /* Check if current node has a suitable gap */ - if (gap_start > high_limit) - return -ENOMEM; -- if (gap_end >= low_limit && gap_end - gap_start >= length) -+ if (gap_end >= low_limit && -+ gap_end > gap_start && gap_end - gap_start >= length) - goto found; - - /* Visit right subtree if it looks promising */ -@@ -1916,7 +1917,8 @@ unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info) - gap_end = vm_start_gap(vma); - if (gap_end < low_limit) - return -ENOMEM; -- if (gap_start <= high_limit && gap_end - gap_start >= length) -+ if (gap_start <= high_limit && -+ gap_end > gap_start && gap_end - gap_start >= length) - goto found; - - /* Visit left subtree if it looks promising */ --- -2.1.4 - diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch new file mode 100644 index 000000000..9c7f01b26 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-ADSP-enable-and-add-sound-hardware-abstraction.patch @@ -0,0 +1,158 @@ +From 274657edb779d77ad0fe5ccb52b51634d075adf8 Mon Sep 17 00:00:00 2001 +From: invalid_git config <unknown@unknown> +Date: Wed, 6 Oct 2021 14:42:47 +0000 +Subject: [PATCH 2/2] The ADSP on Renesas SoCs required a reserved memory area + to become enabled, and this needs to be done manually. + +This patch adds sound hardware abstraction information for the m3ulcb +and m3ulcb-kf (kingfisher) device trees. This is helpful on-board the +ADSP for dynamically determining sound hardware at runtime, allowing +single binaries to be used between the two boards. + +Future work will incorporate the h3ulcb and Salvator boards into the +abstraction. + +Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh> +Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au> +--- + arch/arm64/boot/dts/renesas/r8a77960-ulcb.dts | 45 ++++++++++++++++++- + arch/arm64/boot/dts/renesas/r8a77961-ulcb.dts | 45 ++++++++++++++++++- + 2 files changed, 88 insertions(+), 2 deletions(-) + +diff --git a/arch/arm64/boot/dts/renesas/r8a77960-ulcb.dts b/arch/arm64/boot/dts/renesas/r8a77960-ulcb.dts +index fbc8c9af6e52..df3bd589d9bb 100644 +--- a/arch/arm64/boot/dts/renesas/r8a77960-ulcb.dts ++++ b/arch/arm64/boot/dts/renesas/r8a77960-ulcb.dts +@@ -62,11 +62,18 @@ lossy_decompress: linux,lossy_decompress@54000000 { + reg = <0x00000000 0x54000000 0x0 0x03000000>; + }; + ++ /* For Audio DSP */ ++ adsp_reserved: linux,adsp { ++ compatible = "shared-dma-pool"; ++ reusable; ++ reg = <0x00000000 0x57000000 0x0 0x01000000>; ++ }; ++ + /* global autoconfigured region for contiguous allocations */ + linux,cma@57000000 { + compatible = "shared-dma-pool"; + reusable; +- reg = <0x00000000 0x57000000 0x0 0x19000000>; ++ reg = <0x00000000 0x58000000 0x0 0x18000000>; + linux,cma-default; + }; + +@@ -126,6 +133,42 @@ &du { + "dclkin.0", "dclkin.1", "dclkin.2"; + }; + ++&adsp { ++ status = "okay"; ++ clock-frequency = <12288000 11289600>; ++ audio-clocks = <22579200 24576000>; ++ memory-region = <&adsp_reserved>; ++ ++ /* ADSP playback setting for ak4613 */ ++ adsp_playback0: adsp,playback { ++ mode = "i2s"; ++ clock-mode = "master"; ++ bus-width = <16>; ++ ssi = <0>; ++ bus-if = <0>; ++ channels = <2>; ++ pin-share-ssi = <1>; ++ }; ++ ++ /* ADSP capture setting for ak4613 */ ++ adsp_capture0: adsp,capture { ++ mode = "i2s"; ++ clock-mode = "slave"; ++ bus-width = <16>; ++ ssi = <1>; ++ bus-if = <0>; ++ channels = <2>; ++ pin-share-ssi = <0>; ++ }; ++ ++ adsp,ports { ++ port@0 { ++ playback = <&adsp_playback0>; ++ capture = <&adsp_capture0>; ++ }; ++ }; ++}; ++ + &vspb { + status = "okay"; + }; +diff --git a/arch/arm64/boot/dts/renesas/r8a77961-ulcb.dts b/arch/arm64/boot/dts/renesas/r8a77961-ulcb.dts +index e57dd7bb43f7..f583cc6c18bf 100644 +--- a/arch/arm64/boot/dts/renesas/r8a77961-ulcb.dts ++++ b/arch/arm64/boot/dts/renesas/r8a77961-ulcb.dts +@@ -41,11 +41,18 @@ lossy_decompress: linux,lossy_decompress@54000000 { + reg = <0x00000000 0x54000000 0x0 0x03000000>; + }; + ++ /* For Audio DSP */ ++ adsp_reserved: linux,adsp { ++ compatible = "shared-dma-pool"; ++ reusable; ++ reg = <0x00000000 0x57000000 0x0 0x01000000>; ++ }; ++ + /* global autoconfigured region for contiguous allocations */ + linux,cma@57000000 { + compatible = "shared-dma-pool"; + reusable; +- reg = <0x00000000 0x57000000 0x0 0x19000000>; ++ reg = <0x00000000 0x58000000 0x0 0x18000000>; + linux,cma-default; + }; + +@@ -89,6 +96,42 @@ &du { + "dclkin.0", "dclkin.1", "dclkin.2"; + }; + ++&adsp { ++ status = "okay"; ++ clock-frequency = <12288000 11289600>; ++ audio-clocks = <22579200 24576000>; ++ memory-region = <&adsp_reserved>; ++ ++ /* ADSP playback setting for ak4613 */ ++ adsp_playback0: adsp,playback { ++ mode = "i2s"; ++ clock-mode = "master"; ++ bus-width = <16>; ++ ssi = <0>; ++ bus-if = <0>; ++ channels = <2>; ++ pin-share-ssi = <1>; ++ }; ++ ++ /* ADSP capture setting for ak4613 */ ++ adsp_capture0: adsp,capture { ++ mode = "i2s"; ++ clock-mode = "slave"; ++ bus-width = <16>; ++ ssi = <1>; ++ bus-if = <0>; ++ channels = <2>; ++ pin-share-ssi = <0>; ++ }; ++ ++ adsp,ports { ++ port@0 { ++ playback = <&adsp_playback0>; ++ capture = <&adsp_capture0>; ++ }; ++ }; ++}; ++ + &vspb { + status = "okay"; + }; +-- +2.31.1 + diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch deleted file mode 100644 index a1eeac3d7..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch +++ /dev/null @@ -1,49 +0,0 @@ -From c8bbb0f916de54610513e376070aea531af19dd6 Mon Sep 17 00:00:00 2001 -From: jooseong lee <jooseong.lee@samsung.com> -Date: Thu, 3 Nov 2016 10:55:43 +0100 -Subject: [PATCH 4/4] Smack: Assign smack_known_web label for kernel thread's -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Assign smack_known_web label for kernel thread's socket in the sk_alloc_security hook - -Creating struct sock by sk_alloc function in various kernel subsystems -like bluetooth dosen't call smack_socket_post_create(). In such case, -received sock label is the floor('_') label and makes access deny. - -Refers-to: https://review.tizen.org/gerrit/#/c/80717/4 - -Change-Id: I2e5c9359bfede84a988fd4d4d74cdb9dfdfc52d8 -Signed-off-by: jooseong lee <jooseong.lee@samsung.com> -Signed-off-by: José Bollo <jose.bollo@iot.bzh> ---- - security/smack/smack_lsm.c | 12 ++++++++++-- - 1 file changed, 10 insertions(+), 2 deletions(-) - -diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c -index cf8a93f..21651bc 100644 ---- a/security/smack/smack_lsm.c -+++ b/security/smack/smack_lsm.c -@@ -2321,8 +2321,16 @@ static int smack_sk_alloc_security(struct sock *sk, int family, gfp_t gfp_flags) - if (ssp == NULL) - return -ENOMEM; - -- ssp->smk_in = skp; -- ssp->smk_out = skp; -+ /* -+ * Sockets created by kernel threads receive web label. -+ */ -+ if (unlikely(current->flags & PF_KTHREAD)) { -+ ssp->smk_in = &smack_known_web; -+ ssp->smk_out = &smack_known_web; -+ } else { -+ ssp->smk_in = skp; -+ ssp->smk_out = skp; -+ } - ssp->smk_packet = NULL; - - sk->sk_security = ssp; --- -2.7.4 - diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/Set_GOV_PERFORMANCE.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/Set_GOV_PERFORMANCE.cfg new file mode 100644 index 000000000..b020174e8 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/Set_GOV_PERFORMANCE.cfg @@ -0,0 +1,2 @@ +CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y +# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/bluetooth.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/bluetooth.cfg deleted file mode 100644 index dd7c460bb..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/bluetooth.cfg +++ /dev/null @@ -1,37 +0,0 @@ -CONFIG_BT=m -CONFIG_BT_BREDR=y -CONFIG_BT_RFCOMM=m -CONFIG_BT_RFCOMM_TTY=y -CONFIG_BT_BNEP=m -CONFIG_BT_BNEP_MC_FILTER=y -CONFIG_BT_BNEP_PROTO_FILTER=y -CONFIG_BT_HIDP=m -CONFIG_BT_HS=y -CONFIG_BT_LE=y -CONFIG_BT_LEDS=y -# CONFIG_BT_SELFTEST is not set -CONFIG_BT_DEBUGFS=y - -# -# Bluetooth device drivers -# -CONFIG_BT_INTEL=m -CONFIG_BT_BCM=m -CONFIG_BT_RTL=m -CONFIG_BT_HCIBTUSB=m -CONFIG_BT_HCIBTUSB_BCM=y -CONFIG_BT_HCIBTUSB_RTL=y -# CONFIG_BT_HCIBTSDIO is not set -# CONFIG_BT_HCIUART is not set -CONFIG_BT_HCIBCM203X=m -CONFIG_BT_HCIBFUSB=m -# CONFIG_BT_HCIVHCI is not set -# CONFIG_BT_MRVL is not set -# CONFIG_BT_ATH3K is not set -CONFIG_CRYPTO_ECB=m -CONFIG_CRYPTO_CMAC=m - -# -# Bluetooth AVRCP support -# -CONFIG_INPUT_UINPUT=y diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/disable_ipv6.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/disable_ipv6.cfg deleted file mode 100644 index bc5299acd..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/disable_ipv6.cfg +++ /dev/null @@ -1,4 +0,0 @@ -# CONFIG_NET_IP_TUNNEL is not set -# CONFIG_INET_TUNNEL is not set -# CONFIG_IPV6 is not set -# CONFIG_DST_CACHE is not set diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/nbd.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/nbd.cfg deleted file mode 100644 index af37685e4..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/nbd.cfg +++ /dev/null @@ -1 +0,0 @@ -CONFIG_BLK_DEV_NBD=y diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/r8a77960-ulcb-xen.dts b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/r8a77960-ulcb-xen.dts new file mode 100644 index 000000000..6947a62c2 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/r8a77960-ulcb-xen.dts @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree Source for the M3ULCB (R-Car Starter Kit Pro) board + * + * Copyright (C) 2016-2018 Renesas Electronics Corp. + * Copyright (C) 2016 Cogent Embedded, Inc. + */ + +/dts-v1/; +#include "r8a77960.dtsi" +#include "ulcb.dtsi" + +/ { + model = "Renesas M3ULCB board based on r8a7796"; + compatible = "renesas,m3ulcb", "renesas,r8a7796"; + + + chosen { + /delete-property/ bootargs; + xen,xen-bootargs = "dom0_mem=752M console=dtuart dtuart=serial0 dom0_max_vcpus=4"; + xen,dom0-bootargs = "console=hvc0 clk_ignore_unused root=/dev/mmcblk1p2 rw rootwait ignore_loglevel cma=32M earlyprintk"; + + #address-cells = <2>; + #size-cells = <2>; + modules { + module@0 { + compatible = "xen,linux-zimage", + "xen,multiboot-module"; + reg = <0x0 0x7a000000 0x0 0x02000000>; + }; + }; + }; + + cpus { + idle-states { + /delete-node/ cpu-sleep-1; + }; + }; + + memory@48000000 { + device_type = "memory"; + /* first 128MB is reserved for secure area. */ + reg = <0x0 0x48000000 0x0 0x38000000>, <0x6 0x00000000 0x0 0x40000000>; + }; + + vspm_if { + compatible = "renesas,vspm_if"; + }; + + versaclock5_out3: versaclk-3 { + compatible = "fixed-clock"; + #clock-cells = <0>; + /* Initial value of versaclock out3 */ + clock-frequency = <33000000>; + }; +}; + +&a53_0 { + /delete-property/ cpu-idle-states; +}; + +&a53_1 { + /delete-property/ cpu-idle-states; +}; + +&a53_2 { + /delete-property/ cpu-idle-states; +}; + +&a53_3 { + /delete-property/ cpu-idle-states; +}; + +&du { + clocks = <&cpg CPG_MOD 724>, + <&cpg CPG_MOD 723>, + <&cpg CPG_MOD 722>, + <&versaclock5 1>, + <&versaclock5_out3>, + <&versaclock5 2>; + clock-names = "du.0", "du.1", "du.2", + "dclkin.0", "dclkin.1", "dclkin.2"; +}; + +&vspb { + status = "okay"; +}; + +&vspi0 { + status = "okay"; +}; diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/ramdisk.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/ramdisk.cfg deleted file mode 100644 index 41530dd6e..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/ramdisk.cfg +++ /dev/null @@ -1 +0,0 @@ -CONFIG_BLK_DEV_RAM=y diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/vivid.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/vivid.cfg new file mode 100644 index 000000000..3c3574346 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/vivid.cfg @@ -0,0 +1,6 @@ +CONFIG_V4L_TEST_DRIVERS=y +CONFIG_MEDIA_CONTROLLER_REQUEST_API=y +CONFIG_MEDIA_TEST_SUPPORT=y +CONFIG_VIDEO_V4L2_TPG=m +CONFIG_VIDEO_VIVID=m +CONFIG_VIDEO_VIVID_MAX_DEVS=64 diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/xen-be.cfg b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/xen-be.cfg new file mode 100644 index 000000000..c9fc6d756 --- /dev/null +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/xen-be.cfg @@ -0,0 +1 @@ +CONFIG_XEN_BLKDEV_BACKEND=y diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_%.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_%.bbappend index 44f802218..78996bf0a 100644 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_%.bbappend +++ b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_%.bbappend @@ -1,8 +1,24 @@ -FILESEXTRAPATHS_prepend := "${THISDIR}/files:" - -SRC_URI_append = " file://namespace_fix.cfg \ - file://nbd.cfg \ - file://ramdisk.cfg \ - file://bluetooth.cfg \ - file://disable_ipv6.cfg \ - " +FILESEXTRAPATHS:prepend := "${THISDIR}/files:" + +require recipes-kernel/linux/linux-yocto-agl.inc + +# Add ADSP patch to enable and add sound hardware abstraction +SRC_URI:append = " \ + file://0004-ADSP-enable-and-add-sound-hardware-abstraction.patch \ +" + +AGL_KCONFIG_FRAGMENTS += "namespace_fix.cfg" +AGL_KCONFIG_FRAGMENTS += "Set_GOV_PERFORMANCE.cfg" +AGL_KCONFIG_FRAGMENTS += "vivid.cfg" + +# For Xen +AGL_KCONFIG_FRAGMENTS += " \ + ${@bb.utils.contains('AGL_XEN_WANTED','1','xen-be.cfg','',d)} \ +" + +SRC_URI:append:m3ulcb = " \ + ${@bb.utils.contains('AGL_XEN_WANTED','1','file://r8a77960-ulcb-xen.dts;subdir=git/arch/${ARCH}/boot/dts/renesas','',d)} \ +" +KERNEL_DEVICETREE:append:m3ulcb = " \ + ${@bb.utils.contains('AGL_XEN_WANTED','1','renesas/r8a77960-ulcb-xen.dtb','',d)} \ +" diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.9.bbappend b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.9.bbappend deleted file mode 100644 index 634a91233..000000000 --- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/linux-renesas_4.9.bbappend +++ /dev/null @@ -1,18 +0,0 @@ -FILESEXTRAPATHS_prepend := "${THISDIR}/files:" - -#------------------------------------------------------------------------- -# smack patches for handling bluetooth - -SRC_URI_append_smack = "\ - file://0004-Smack-Assign-smack_known_web-label-for-kernel-thread.patch \ -" - - -#------------------------------------------------------------------------- -# Fix for CVE-2017-1000364 by backporting the upstream patches. - -SRC_URI_append = "\ - file://0001-mm-larger-stack-guard-gap-between-vmas.patch \ - file://0002-Allow-stack-to-grow-up-to-address-space-limit.patch \ - file://0003-mm-fix-new-crash-in-unmapped_area_topdown.patch \ -" |