Andrey Ryabinin 0d39e2669d x86/kasan: Panic if there is not enough memory to boot ... Currently KASAN doesn't panic in case it don't have enough memory to boot. Instead, it crashes in some random place: kernel BUG at arch/x86/mm/physaddr.c:27! RIP: 0010:__phys_addr+0x268/0x276 Call Trace: kasan_populate_shadow+0x3f2/0x497 kasan_init+0x12e/0x2b2 setup_arch+0x2825/0x2a2c start_kernel+0xc8/0x15f4 x86_64_start_reservations+0x2a/0x2c x86_64_start_kernel+0x72/0x75 secondary_startup_64+0xa5/0xb0 Use memblock_virt_alloc_try_nid() for allocations without failure fallback. It will panic with an out of memory message. Reported-by: kernel test robot <xiaolong.ye@intel.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Dmitry Vyukov <dvyukov@google.com> Cc: kasan-dev@googlegroups.com Cc: Alexander Potapenko <glider@google.com> Cc: lkp@01.org Link: https://lkml.kernel.org/r/20180110153602.18919-1-aryabinin@virtuozzo.com		2018-01-15 00:32:35 +01:00
..
kmemcheck	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
amdtopology.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
cpu_entry_area.c	x86/cpu_entry_area: Add debugstore entries to cpu_entry_area	2017-12-23 21:13:00 +01:00
debug_pagetables.c	x86/mm/dump_pagetables: Allow dumping current pagetables	2017-12-23 21:13:01 +01:00
dump_pagetables.c	x86/mm: Map cpu_entry_area at the same place on 4/5 level	2018-01-04 23:04:57 +01:00
extable.c	x86/fpu: Reinitialize FPU registers if restoring FPU state fails	2017-09-25 09:26:38 +02:00
fault.c	Merge commit 'upstream-x86-entry' into WIP.x86/mm	2017-12-17 12:58:53 +01:00
highmem_32.c	x86/mm: Audit and remove any unnecessary uses of module.h	2016-07-14 13:04:20 +02:00
hugetlbpage.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ident_map.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
init_32.c	x86/cpu_entry_area: Move it out of the fixmap	2017-12-22 20:13:05 +01:00
init_64.c	x86/mm/64: Rename the register_page_bootmem_memmap() 'size' parameter to 'nr_pages'	2017-10-30 10:30:23 +01:00
init.c	x86/tlb: Drop the _GPL from the cpu_tlbstate export	2018-01-05 00:39:58 +01:00
iomap_32.c	x86/mm: Audit and remove any unnecessary uses of module.h	2016-07-14 13:04:20 +02:00
ioremap.c	x86/mm: Use proper encryption attributes with /dev/mem	2017-07-18 11:38:05 +02:00
kasan_init_64.c	x86/kasan: Panic if there is not enough memory to boot	2018-01-15 00:32:35 +01:00
kaslr.c	x86/kaslr: Fix the vaddr_end mess	2018-01-05 00:39:57 +01:00
kmmio.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	x86/mm/pti: Add infrastructure for page table isolation	2017-12-23 21:12:59 +01:00
mem_encrypt_boot.S	x86/mm: Fix SME encryption stack ptr handling	2017-08-29 10:57:16 +02:00
mem_encrypt.c	x86/mm: Unbreak modules that rely on external PAGE_KERNEL availability	2017-11-08 13:52:36 -08:00
mm_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mmap.c	Revert "x86/mm: Limit mmap() of /dev/mem to valid physical addresses"	2017-10-27 10:06:49 +02:00
mmio-mod.c	x86/boot/e820: Move asm/e820.h to asm/e820/api.h	2017-01-28 09:31:13 +01:00
mpx.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
numa_32.c	x86/mm/32: Set the '__vmalloc_start_set' flag in initmem_init()	2017-05-09 08:12:27 +02:00
numa_64.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
numa_emulation.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
numa_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
numa.c	Merge branch 'x86/boot' into x86/mm, to avoid conflict	2017-04-11 08:56:05 +02:00
pageattr-test.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pageattr.c	x86, drm, fbdev: Do not specify encrypted memory for video mappings	2017-07-18 11:38:04 +02:00
pat_internal.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pat_rbtree.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pat.c	x86/mm: Use proper encryption attributes with /dev/mem	2017-07-18 11:38:05 +02:00
pf_in.c	x86/mm: Audit and remove any unnecessary uses of module.h	2016-07-14 13:04:20 +02:00
pf_in.h	x86 mmiotrace: move files into arch/x86/mm/.	2008-05-24 11:25:37 +02:00
pgtable_32.c	x86/cpu_entry_area: Move it out of the fixmap	2017-12-22 20:13:05 +01:00
pgtable.c	x86/mm/pti: Allocate a separate user PGD	2017-12-23 21:13:00 +01:00
physaddr.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
physaddr.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pkeys.c	x86/fpu: Rename fpu::fpstate_active to fpu::initialized	2017-09-26 09:43:36 +02:00
pti.c	x86/mm/pti: Remove dead logic in pti_user_pagetable_walk*()	2018-01-08 17:42:13 +01:00
setup_nx.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
srat.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
testmmiotrace.c	Annotate hardware config module parameters in arch/x86/mm/	2017-04-04 16:54:21 +01:00
tlb.c	x86/mm: Use/Fix PCID to optimize user/kernel switches	2017-12-23 21:13:00 +01:00