====================================== | [ 6280.522670][ T6303] dropreason: entered promiscuous mode | [ 6287.002826][ T6353] c0: entered promiscuous mode | [ 6293.183938][ T6399] s0: entered promiscuous mode | [ 6472.189842][ T6561] perf: page allocation failure: order:6, mode:0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null),cpuset=/,mems_allowed=0 [ 6472.190682][ T6561] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6472.191034][ T6561] Call Trace: [ 6472.191151][ T6561] [ 6472.191233][ T6561] dump_stack_lvl (lib/dump_stack.c:117) [ 6472.191394][ T6561] warn_alloc (mm/page_alloc.c:3504) [ 6472.191517][ T6561] ? __pfx_warn_alloc (mm/page_alloc.c:3483) [ 6472.191679][ T6561] ? __alloc_pages_direct_compact (mm/page_alloc.c:3678) [ 6472.191864][ T6561] ? __pfx___alloc_pages_direct_compact (mm/page_alloc.c:3626) [ 6472.192228][ T6561] __alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4426) [ 6472.192422][ T6561] ? get_page_from_freelist (mm/page_alloc.c:3181 mm/page_alloc.c:3374) [ 6472.192572][ T6561] ? __pfx___alloc_pages_slowpath.constprop.0 (mm/page_alloc.c:4154) [ 6472.192766][ T6561] __alloc_pages_noprof (mm/page_alloc.c:4696) [ 6472.192957][ T6561] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4649) [ 6472.193104][ T6561] ? 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:228) [ 6472.193255][ T6561] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 6472.193413][ T6561] ? 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:228) [ 6472.193562][ T6561] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 6472.193714][ T6561] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) [ 6472.193863][ T6561] __kmalloc_large_node (./include/linux/gfp.h:269 ./include/linux/gfp.h:296 mm/slub.c:4068) [ 6472.194017][ T6561] ? v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) [ 6472.194168][ T6561] __kmalloc_noprof (./arch/x86/include/asm/bitops.h:417 ./include/asm-generic/getorder.h:46 mm/slub.c:4113 mm/slub.c:4136) [ 6472.194317][ T6561] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 6472.194428][ T6561] ? 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:228) [ 6472.194579][ T6561] v9fs_alloc_rdir_buf.isra.0 (fs/9p/vfs_dir.c:73) [ 6472.194727][ T6561] v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:160) [ 6472.194883][ T6561] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 6472.195032][ T6561] ? __pfx_v9fs_dir_readdir_dotl (fs/9p/vfs_dir.c:148) [ 6472.195218][ T6561] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 6472.195370][ T6561] ? iterate_dir (fs/readdir.c:103) [ 6472.195527][ T6561] ? 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) [ 6472.195678][ T6561] ? __pfx_rwsem_read_trylock (kernel/locking/rwsem.c:242) [ 6472.195827][ T6561] ? iterate_dir (fs/readdir.c:103) [ 6472.195975][ T6561] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 6472.196126][ T6561] ? iterate_dir (fs/readdir.c:103) [ 6472.196279][ T6561] ? down_read_killable (kernel/locking/rwsem.c:1249 kernel/locking/rwsem.c:1273 kernel/locking/rwsem.c:1551) [ 6472.196427][ T6561] ? iterate_dir (fs/readdir.c:103) [ 6472.196581][ T6561] ? __pfx_down_read_killable (kernel/locking/rwsem.c:1547) [ 6472.196729][ T6561] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 6472.196876][ T6561] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 6472.197030][ T6561] iterate_dir (fs/readdir.c:110) [ 6472.197181][ T6561] ovl_iterate (fs/overlayfs/readdir.c:775) [ 6472.197334][ T6561] ? wrap_directory_iterator (fs/readdir.c:56) [ 6472.197481][ T6561] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) [ 6472.197632][ T6561] ? __pfx_ovl_iterate (fs/overlayfs/readdir.c:751) [ 6472.197792][ T6561] wrap_directory_iterator (fs/readdir.c:67) [ 6472.197942][ T6561] iterate_dir (fs/readdir.c:110) [ 6472.198095][ T6561] __x64_sys_getdents64 (fs/readdir.c:410 fs/readdir.c:394 fs/readdir.c:394) [ 6472.198242][ T6561] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 6472.198389][ T6561] ? __pfx___x64_sys_getdents64 (fs/readdir.c:394) [ 6472.198538][ T6561] ? __pfx_filldir64 (fs/readdir.c:352) [ 6472.198722][ T6561] ? do_user_addr_fault (./include/linux/rcupdate.h:814 ./include/linux/mm.h:708 arch/x86/mm/fault.c:1340) [ 6472.198881][ T6561] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 6472.199037][ T6561] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 6472.199224][ T6561] RIP: 0033:0x7fbda4c255b7 [ 6472.199392][ T6561] 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 [ 6472.199929][ T6561] RSP: 002b:00007fff3cb1b1d8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 [ 6472.200164][ T6561] RAX: ffffffffffffffda RBX: 000000001e98d1d0 RCX: 00007fbda4c255b7 [ 6472.200387][ T6561] RDX: 0000000000020000 RSI: 000000001e98d1d0 RDI: 000000000000000a [ 6472.200610][ T6561] RBP: 000000001e98d1a4 R08: 000000001e98d1a0 R09: 0000000000000001 [ 6472.200830][ T6561] R10: 0000000000000fff R11: 0000000000000293 R12: ffffffffffffff38 Finger prints: warn_alloc:__alloc_pages_noprof:__kmalloc_large_node:__kmalloc_noprof:v9fs_dir_readdir_dotl