leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
dd0e144a63
linux/arch/powerpc/mm
History
Aneesh Kumar K.V dd0e144a63 powerpc/mm: Fix WARN_ON with THP NUMA migration 
WARNING: CPU: 12 PID: 4322 at /arch/powerpc/mm/pgtable-book3s64.c:76 set_pmd_at+0x4c/0x2b0
 Modules linked in:
 CPU: 12 PID: 4322 Comm: qemu-system-ppc Tainted: G        W         4.19.0-rc3-00758-g8f0c636b0542 #36
 NIP:  c0000000000872fc LR: c000000000484eec CTR: 0000000000000000
 REGS: c000003fba876fe0 TRAP: 0700   Tainted: G        W          (4.19.0-rc3-00758-g8f0c636b0542)
 MSR:  900000010282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>  CR: 24282884  XER: 00000000
 CFAR: c000000000484ee8 IRQMASK: 0
 GPR00: c000000000484eec c000003fba877268 c000000001f0ec00 c000003fbd229f80
 GPR04: 00007c8fe8e00000 c000003f864c5a38 860300853e0000c0 0000000000000080
 GPR08: 0000000080000000 0000000000000001 0401000000000080 0000000000000001
 GPR12: 0000000000002000 c000003fffff5400 c000003fce292000 00007c9024570000
 GPR16: 0000000000000000 0000000000ffffff 0000000000000001 c000000001885950
 GPR20: 0000000000000000 001ffffc0004807c 0000000000000008 c000000001f49d05
 GPR24: 00007c8fe8e00000 c0000000020f2468 ffffffffffffffff c000003fcd33b090
 GPR28: 00007c8fe8e00000 c000003fbd229f80 c000003f864c5a38 860300853e0000c0
 NIP [c0000000000872fc] set_pmd_at+0x4c/0x2b0
 LR [c000000000484eec] do_huge_pmd_numa_page+0xb1c/0xc20
 Call Trace:
 [c000003fba877268] [c00000000045931c] mpol_misplaced+0x1bc/0x230 (unreliable)
 [c000003fba8772c8] [c000000000484eec] do_huge_pmd_numa_page+0xb1c/0xc20
 [c000003fba877398] [c00000000040d344] __handle_mm_fault+0x5e4/0x2300
 [c000003fba8774d8] [c00000000040f400] handle_mm_fault+0x3a0/0x420
 [c000003fba877528] [c0000000003ff6f4] __get_user_pages+0x2e4/0x560
 [c000003fba877628] [c000000000400314] get_user_pages_unlocked+0x104/0x2a0
 [c000003fba8776c8] [c000000000118f44] __gfn_to_pfn_memslot+0x284/0x6a0
 [c000003fba877748] [c0000000001463a0] kvmppc_book3s_radix_page_fault+0x360/0x12d0
 [c000003fba877838] [c000000000142228] kvmppc_book3s_hv_page_fault+0x48/0x1300
 [c000003fba877988] [c00000000013dc08] kvmppc_vcpu_run_hv+0x1808/0x1b50
 [c000003fba877af8] [c000000000126b44] kvmppc_vcpu_run+0x34/0x50
 [c000003fba877b18] [c000000000123268] kvm_arch_vcpu_ioctl_run+0x288/0x2d0
 [c000003fba877b98] [c00000000011253c] kvm_vcpu_ioctl+0x1fc/0x8c0
 [c000003fba877d08] [c0000000004e9b24] do_vfs_ioctl+0xa44/0xae0
 [c000003fba877db8] [c0000000004e9c44] ksys_ioctl+0x84/0xf0
 [c000003fba877e08] [c0000000004e9cd8] sys_ioctl+0x28/0x80

We removed the pte_protnone check earlier with the understanding that we
mark the pte invalid before the set_pte/set_pmd usage. But the huge pmd
autonuma still use the set_pmd_at directly. This is ok because a protnone pte
won't have translation cache in TLB.

Fixes: da7ad366b4 ("powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-20 13:26:47 +11:00
..
8xx_mmu.c powerpc/8xx: change name of a few page flags to avoid confusion 2018-10-14 18:04:09 +11:00
40x_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
44x_mmu.c powerpc/44x: Mark mmu_init_secondary() as __init 2018-07-30 22:48:22 +10:00
copro_fault.c mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
dma-noncoherent.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
drmem.c powerpc/mm/drmem: Fix unexpected flag value in ibm,dynamic-memory-v2 2018-02-23 16:45:51 +11:00
dump_hashpagetable.c powerpc: remove superflous inclusions of asm/fixmap.h 2018-07-30 22:48:18 +10:00
dump_linuxpagetables-8xx.c powerpc/8xx: change name of a few page flags to avoid confusion 2018-10-14 18:04:09 +11:00
dump_linuxpagetables-book3s64.c powerpc/book3s64: fix dump_linuxpagetables "present" flag 2018-10-20 13:26:47 +11:00
dump_linuxpagetables-generic.c powerpc/mm: Split dump_pagelinuxtables flag_array table 2018-10-14 18:04:09 +11:00
dump_linuxpagetables.c powerpc/mm: Split dump_pagelinuxtables flag_array table 2018-10-14 18:04:09 +11:00
dump_linuxpagetables.h powerpc/mm: Split dump_pagelinuxtables flag_array table 2018-10-14 18:04:09 +11:00
fault.c Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
fsl_booke_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hash64_4k.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
hash64_64k.c powerpc/mm/hash: Remove the superfluous bitwise operation when find hpte group 2018-07-24 22:03:17 +10:00
hash_low_32.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
hash_native_64.c powerpc/64s/hash: Do not use PPC_INVALIDATE_ERAT on CPUs before POWER9 2018-10-04 23:16:53 +10:00
hash_utils_64.c powerpc/64s/hash: Simplify slb_flush_and_rebolt() 2018-10-14 18:04:09 +11:00
highmem.c powerpc/mm: remove warning about ‘type’ being set 2018-08-10 22:12:38 +10:00
hugepage-hash64.c arch/powerpc/mm/hash: validate the pte entries before handling the hash fault 2018-10-03 15:39:59 +10:00
hugetlbpage-book3e.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlbpage-hash64.c arch/powerpc/mm/hash: validate the pte entries before handling the hash fault 2018-10-03 15:39:59 +10:00
hugetlbpage-radix.c powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
hugetlbpage.c powerpc/mm: Don't report hugepage tables as memory leaks when using kmemleak 2018-10-03 15:40:07 +10:00
init_32.c powerpc/mm/32: Remove the reserved memory hack 2018-04-01 00:47:44 +11:00
init_64.c powerpc/mm/radix: Parse disable_radix commandline correctly. 2018-04-04 16:59:36 +10:00
init-common.c powerpc/mm: Fix crashes with 16G huge pages 2018-02-13 22:37:47 +11:00
Makefile powerpc: Add -Werror at arch/powerpc level 2018-10-19 00:56:17 +11:00
mem.c powerpc/mm: don't use _PAGE_EXEC for calling hash_preload() 2018-10-14 18:04:09 +11:00
mmap.c exec: pass stack rlimit into mm layout functions 2018-04-11 10:28:37 -07:00
mmu_context_book3s64.c powerpc/64s/hash: Add a SLB preload cache 2018-10-14 18:04:09 +11:00
mmu_context_hash32.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
mmu_context_iommu.c KVM: PPC: Book3S: Fix guest DMA when guest partially backed by THP pages 2018-08-23 23:40:10 +10:00
mmu_context_nohash.c powerpc/mm: Remove stale_map[] handling on non SMP processors 2018-06-04 00:39:16 +10:00
mmu_context.c Revert "convert SLB miss handlers to C" and subsequent commits 2018-10-03 15:32:49 +10:00
mmu_decl.h powerpc/mm: Trace tlbia instruction 2018-10-20 13:26:47 +11:00
numa.c powerpc/pseries/mobility: Extend start/stop topology update scope 2018-10-13 22:21:25 +11:00
pgtable_32.c powerpc/mm: use pte helpers in generic code 2018-10-14 18:04:09 +11:00
pgtable_64.c powerpc/mm: use pte helpers in generic code 2018-10-14 18:04:09 +11:00
pgtable-book3e.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
pgtable-book3s64.c powerpc/mm: Fix WARN_ON with THP NUMA migration 2018-10-20 13:26:47 +11:00
pgtable-hash64.c powerpc: handover page flags with a pgprot_t parameter 2018-10-14 18:04:09 +11:00
pgtable-radix.c powerpc/mm/radix: Only need the Nest MMU workaround for R -> RW transition 2018-08-23 21:56:48 +10:00
pgtable.c powerpc/mm: Fix WARN_ON with THP NUMA migration 2018-10-20 13:26:47 +11:00
pkeys.c powerpc/pkeys: Fix reading of ibm, processor-storage-keys property 2018-09-20 22:49:46 +10:00
ppc_mmu_32.c powerpc/mm: don't use _PAGE_EXEC for calling hash_preload() 2018-10-14 18:04:09 +11:00
slb.c powerpc/mm: Increase the max addressable memory to 2PB 2018-10-14 18:04:09 +11:00
slice.c powerpc/mm: fix always true/false warning in slice.c 2018-10-20 13:26:47 +11:00
subpage-prot.c powerpc: remove unnecessary inclusion of asm/tlbflush.h 2018-07-30 22:48:20 +10:00
tlb_hash32.c powerpc/sparse: Fix plain integer as NULL pointer warning 2018-05-25 12:04:38 +10:00
tlb_hash64.c powerpc/mm: Add support for handling > 512TB address in SLB miss 2018-03-31 00:10:38 +11:00
tlb_low_64e.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
tlb_nohash_low.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
tlb_nohash.c powerpc/nohash: fix undefined behaviour when testing page size support 2018-10-04 16:54:41 +10:00
tlb-radix.c powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation 2018-10-04 23:16:53 +10:00
vphn.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vphn.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00