====================================== | [ 3521.043372][T19127] dropreason: entered promiscuous mode | [ 3528.365356][T19178] c0: entered promiscuous mode | [ 3535.221114][T19225] s0: entered promiscuous mode | [ 3718.201966][T19386] perf: page allocation failure: order:6, mode:0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null),cpuset=/,mems_allowed=0 [ 3718.203466][T19386] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 3718.203808][T19386] Call Trace: [ 3718.203929][T19386] [3718.204011][T19386] dump_stack_lvl (lib/dump_stack.c:117) [3718.204169][T19386] warn_alloc (mm/page_alloc.c:3504) [3718.204289][T19386] ? __pfx_warn_alloc (mm/page_alloc.c:3483) [3718.204456][T19386] ? __alloc_pages_direct_compact (mm/page_alloc.c:3678) [3718.204645][T19386] ? __pfx___alloc_pages_direct_compact (mm/page_alloc.c:3626) [3718.204844][T19386] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4426) [3718.205043][T19386] ? get_page_from_freelist (mm/page_alloc.c:3181 mm/page_alloc.c:3374) [3718.205196][T19386] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4154) [3718.205395][T19386] __alloc_pages_noprof (mm/page_alloc.c:4696) [3718.205545][T19386] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4649) [3718.205694][T19386] ? __kasan_unpoison_pages (mm/kasan/common.c:136) [3718.205852][T19386] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:227) [3718.206001][T19386] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3758 kernel/locking/lockdep.c:3781 kernel/locking/lockdep.c:3836) [3718.206157][T19386] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) [3718.206305][T19386] __kmalloc_large_node (./include/linux/gfp.h:269 ./include/linux/gfp.h:296 mm/slub.c:4068) [3718.206476][T19386] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) [3718.206629][T19386] __kmalloc_noprof (./arch/x86/include/asm/bitops.h:417 ./include/asm-generic/getorder.h:46 mm/slub.c:4113 mm/slub.c:4136) [3718.206783][T19386] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) [3718.206900][T19386] v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) [3718.207050][T19386] v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:160) [3718.207207][T19386] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) [3718.207368][T19386] ? __pfx_v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:148) [3718.207552][T19386] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5755) [3718.207701][T19386] ? iterate_dir (fs/readdir.c:101) [3718.207856][T19386] ? rwsem_read_trylock (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2629 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3224 kernel/locking/rwsem.c:176 kernel/locking/rwsem.c:181 kernel/locking/rwsem.c:249 kernel/locking/rwsem.c:241) [3718.208007][T19386] ? __pfx_rwsem_read_trylock (kernel/locking/rwsem.c:242) [3718.208159][T19386] ? iterate_dir (fs/readdir.c:101) [3718.208310][T19386] ? lock_acquire (kernel/locking/lockdep.c:5726) [3718.208462][T19386] ? iterate_dir (fs/readdir.c:101) [3718.208616][T19386] ? down_read_killable (kernel/locking/rwsem.c:1249 kernel/locking/rwsem.c:1273 kernel/locking/rwsem.c:1551) [3718.208770][T19386] ? iterate_dir (fs/readdir.c:101) [3718.208927][T19386] ? __pfx_down_read_killable (kernel/locking/rwsem.c:1547) [3718.209074][T19386] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5718) [3718.209223][T19386] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [3718.209381][T19386] iterate_dir (fs/readdir.c:108) [3718.209535][T19386] ovl_iterate (fs/overlayfs/readdir.c:775) [3718.209688][T19386] ? wrap_directory_iterator (fs/readdir.c:54) [3718.209835][T19386] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) [3718.209990][T19386] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) [3718.210142][T19386] wrap_directory_iterator (fs/readdir.c:65) [3718.210299][T19386] iterate_dir (fs/readdir.c:108) [3718.210453][T19386] __x64_sys_getdents64 (fs/readdir.c:408 fs/readdir.c:392 fs/readdir.c:392) [3718.210608][T19386] ? __pfx___x64_sys_getdents64 (fs/readdir.c:392) [3718.210761][T19386] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:870 ./include/linux/mm.h:708 arch/x86/mm/fault.c:1340) [3718.210913][T19386] ? __pfx_filldir64 (fs/readdir.c:350) [3718.211066][T19386] ? do_user_addr_fault (./include/linux/rcupdate.h:872 ./include/linux/mm.h:708 arch/x86/mm/fault.c:1340) [3718.211224][T19386] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [3718.211378][T19386] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 3718.211562][T19386] RIP: 0033:0x7ff46209a5b7 [ 3718.211719][T19386] Code: 80 f8 ff 4c 89 e0 5b 5d 41 5c c3 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 19 48 0e 00 f7 d8 64 89 02 48 All code ======== 0: 80 f8 ff cmp $0xff,%al 3: 4c 89 e0 mov %r12,%rax 6: 5b pop %rbx 7: 5d pop %rbp 8: 41 5c pop %r12 a: c3 ret b: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 12: 00 13: f3 0f 1e fa endbr64 17: b8 ff ff ff 7f mov $0x7fffffff,%eax 1c: 48 39 c2 cmp %rax,%rdx 1f: 48 0f 47 d0 cmova %rax,%rdx 23: b8 d9 00 00 00 mov $0xd9,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 01 ja 0x33 32: c3 ret 33: 48 8b 15 19 48 0e 00 mov 0xe4819(%rip),%rdx # 0xe4853 3a: f7 d8 neg %eax 3c: 64 89 02 mov %eax,%fs:(%rdx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 01 ja 0x9 8: c3 ret 9: 48 8b 15 19 48 0e 00 mov 0xe4819(%rip),%rdx # 0xe4829 10: f7 d8 neg %eax 12: 64 89 02 mov %eax,%fs:(%rdx) 15: 48 rex.W [ 3718.212253][T19386] RSP: 002b:00007ffd8f108748 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 [ 3718.212486][T19386] RAX: ffffffffffffffda RBX: 00007ff461aa1040 RCX: 00007ff46209a5b7 [ 3718.212725][T19386] RDX: 0000000000020000 RSI: 00007ff461aa1040 RDI: 0000000000000006 [ 3718.212986][T19386] RBP: 00007ff461aa1014 R08: 00007ff461aa1010 R09: 0000000000000000 [ 3718.213208][T19386] R10: 0000000000000022 R11: 0000000000000293 R12: ffffffffffffff38 Finger prints: warn_alloc:__alloc_pages_noprof:__kmalloc_large_node:__kmalloc_noprof:v9fs_dir_readdir_dotl