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linux/arch/powerpc/mm
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Guenter Roeck 7c6a4f3b16 powerpc/mm: Call flush_tlb_kernel_range with interrupts enabled 
flush_tlb_kernel_range() may call smp_call_function_many() which expects
interrupts to be enabled. This results in a traceback.

WARNING: CPU: 0 PID: 1 at kernel/smp.c:416 smp_call_function_many+0xcc/0x2fc
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc1-00009-g0666f56 #1
task: cf830000 task.stack: cf82e000
NIP:  c00a93c8 LR: c00a9634 CTR: 00000001
REGS: cf82fde0 TRAP: 0700   Not tainted  (4.14.0-rc1-00009-g0666f56)
MSR:  00021000 <CE,ME>  CR: 24000082  XER: 00000000

GPR00: c00a9634 cf82fe90 cf830000 c050ad3c c0015a54 00000000 00000001 00000001
GPR08: 00000001 00000000 00000000 cf82e000 24000084 00000000 c0003150 00000000
GPR16: 00000000 00000000 00000000 00000000 00000000 00000001 00000000 c0510000
GPR24: 00000000 c0015a54 00000000 c050ad3c c051823c c050ad3c 00000025 00000000
NIP [c00a93c8] smp_call_function_many+0xcc/0x2fc
LR [c00a9634] smp_call_function+0x3c/0x50
Call Trace:
[cf82fe90] [00000010] 0x10 (unreliable)
[cf82fed0] [c00a9634] smp_call_function+0x3c/0x50
[cf82fee0] [c0015d2c] flush_tlb_kernel_range+0x20/0x38
[cf82fef0] [c001524c] mark_initmem_nx+0x154/0x16c
[cf82ff20] [c001484c] free_initmem+0x20/0x4c
[cf82ff30] [c000316c] kernel_init+0x1c/0x108
[cf82ff40] [c000f3a8] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
7c0803a6 7d808120 38210040 4e800020 3d20c052 812981a0 2f890000 40beffac
3d20c051 8929ac64 2f890000 40beff9c <0fe00000> 4bffff94 7fc3f378 7f64db78

Fixes: 3184cc4b6f ("powerpc/mm: Fix kernel RAM protection after freeing ...")
Fixes: e611939fc8 ("powerpc/mm: Ensure change_page_attr() doesn't ...")
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-10-04 22:15:30 +11:00
..
8xx_mmu.c powerpc/8xx: mark init functions with __init 2017-08-15 22:55:54 +10:00
40x_mmu.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
44x_mmu.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
copro_fault.c powerpc/mm: Update PROTFAULT handling in the page fault path 2017-02-15 20:02:39 +11:00
dma-noncoherent.c powerpc/mm: Rename map_page() to map_kernel_page() on 32-bit 2017-06-05 19:59:03 +10:00
dump_hashpagetable.c powerpc/mm: Use seq_putc() in two functions 2017-09-01 16:42:52 +10:00
dump_linuxpagetables.c powerpc/mm: Use seq_putc() in two functions 2017-09-01 16:42:52 +10:00
fault.c powerpc/8xx: Use symbolic names for DSISR bits in DSI 2017-08-10 23:32:20 +10:00
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: Fix lazy icache flush on pre-POWER5 2016-11-29 23:59:40 +11:00
hash64_64k.c powerpc/mm: Fix lazy icache flush on pre-POWER5 2016-11-29 23:59:40 +11:00
hash_low_32.S powerpc: fix location of two EXPORT_SYMBOL 2017-09-01 16:42:45 +10:00
hash_native_64.c powerpc/mm: Wire up hpte_removebolted for powernv 2017-07-02 20:40:28 +10:00
hash_utils_64.c powerpc/mm: Use mm_is_thread_local() instread of open-coding 2017-08-23 22:27:45 +10:00
highmem.c sched/preempt, mm/kmap: Explicitly disable/enable preemption in kmap_atomic_* 2015-05-19 08:39:14 +02:00
hugepage-hash64.c powerpc/mm: Move hash table ops to a separate structure 2016-07-21 18:59:09 +10:00
hugetlbpage-book3e.c powerpc/mm/nohash: MM_SLICE is only used by book3s 64 2017-03-31 23:09:47 +11:00
hugetlbpage-hash64.c powerpc/mm: Remove the debug hugepd_ok check 2017-01-23 19:19:28 +11:00
hugetlbpage-radix.c mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
hugetlbpage.c powerpc/mm: Use mm_is_thread_local() instread of open-coding 2017-08-23 22:27:45 +10:00
init_32.c powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel command line 2017-08-16 14:56:12 +10:00
init_64.c powerpc/mm: Fix section mismatch warning in early_check_vec5() 2017-08-10 23:40:51 +10:00
init-common.c Merge branch 'topic/ppc-kvm' into next 2017-02-14 17:18:29 +11:00
Makefile powerpc/mm: Make switch_mm_irqs_off() out of line 2017-08-23 22:48:51 +10:00
mem.c powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
mmap.c powerpc,mmap: properly account for stack randomization in mmap_base 2017-07-12 16:26:03 -07:00
mmu_context_book3s64.c powerpc/mm: Optimize detection of thread local mm's 2017-08-23 22:28:38 +10:00
mmu_context_hash32.c powerpc: Remove power3 from comments 2014-07-28 14:10:26 +10:00
mmu_context_iommu.c Merge branch 'topic/ppc-kvm' into next 2017-04-28 20:19:37 +10:00
mmu_context_nohash.c powerpc/mm/nohash: MM_SLICE is only used by book3s 64 2017-03-31 23:09:47 +11:00
mmu_context.c powerpc/mm: Make switch_mm_irqs_off() out of line 2017-08-23 22:48:51 +10:00
mmu_decl.h powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
numa.c powerpc: Only obtain cpu_hotplug_lock if called by rtasd 2017-06-23 09:32:11 +02:00
pgtable_32.c powerpc/mm: Call flush_tlb_kernel_range with interrupts enabled 2017-10-04 22:15:30 +11:00
pgtable_64.c powerpc/mm/book3s64: Make KERN_IO_START a variable 2017-08-08 19:37:04 +10:00
pgtable-book3e.c powerpc/mm: Make page table size a variable 2016-05-01 18:32:48 +10:00
pgtable-book3s64.c powerpc/mm/cxl: Add the fault handling cpu to mm cpumask 2017-08-17 23:31:52 +10:00
pgtable-hash64.c powerpc/mm: Use mm_is_thread_local() instread of open-coding 2017-08-23 22:27:45 +10:00
pgtable-radix.c powerpc/mm/radix: Prettify mapped memory range print out 2017-08-31 14:26:42 +10:00
pgtable.c powerpc/mm: Fix typo in set_pte_at() 2017-02-17 22:16:25 +11:00
ppc_mmu_32.c powerpc32: refactor x_mapped_by_bats() and x_mapped_by_tlbcam() together 2016-03-11 17:18:02 -06:00
slb_low.S powerpc/mm/hash64: Make vmalloc 56T on hash 2017-08-08 19:37:05 +10:00
slb.c powerpc/64s: Rename slb_allocate_realmode() to slb_allocate() 2017-06-21 16:18:33 +10:00
slice.c mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
subpage-prot.c powerpc/mm/hash: Free the subpage_prot_table correctly 2017-07-27 13:05:50 +10:00
tlb_hash32.c powerpc/mm: remove flush_tlb_page_nohash 2016-08-01 11:15:13 +10:00
tlb_hash64.c powerpc/mm: Use mm_is_thread_local() instread of open-coding 2017-08-23 22:27:45 +10:00
tlb_low_64e.S powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
tlb_nohash_low.S powerpc/8xx: Getting rid of remaining use of CONFIG_8xx 2017-08-10 23:32:12 +10:00
tlb_nohash.c powerpc/nohash: Fix use of mmu_has_feature() in setup_initial_memory_limit() 2017-04-11 07:46:04 +10:00
tlb-radix.c Merge branch 'fixes' into next 2017-08-23 22:20:10 +10:00
vphn.c powerpc/vphn: parsing code rewrite 2015-03-18 10:48:59 +11:00
vphn.h powerpc/vphn: parsing code rewrite 2015-03-18 10:48:59 +11:00