Node 0 DMA32: 69*4kB (UME) 32*8kB (UME) 31*16kB (UME) 36*32kB (UME) 13*64kB (UME) 4*128kB (UM) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3780kB
Node 1 DMA32: 0*4kB 1*8kB (E) 1*16kB (U) 0*32kB 2*64kB (ME) 2*128kB (UE) 1*256kB (E) 2*512kB (UE) 3*1024kB (UME) 2*2048kB (UM) 11*4096kB (M) = 53912kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
44552 total pagecache pages
145 pages in swap cache
Free swap = 121264kB
Total swap = 124996kB
393083 pages RAM
0 pages HighMem/MovableOnly
194386 pages reserved
0 pages cma reserved
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 5, space 0, times 89
CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x410/0x560 lib/fault-inject.c:174
should_failslab+0xa8/0x100 mm/failslab.c:46
slab_pre_alloc_hook mm/slub.c:4675 [inline]
slab_alloc_node mm/slub.c:5011 [inline]
kmem_cache_alloc_noprof+0x9c/0x600 mm/slub.c:5047
__kernfs_new_node+0xe6/0x980 fs/kernfs/dir.c:667
kernfs_new_node+0xeb/0x140 fs/kernfs/dir.c:759
__kernfs_create_file+0x4b/0x2e0 fs/kernfs/file.c:1071
sysfs_add_file_mode_ns+0x237/0x300 fs/sysfs/file.c:316
create_files fs/sysfs/group.c:82 [inline]
internal_create_group+0x679/0x1180 fs/sysfs/group.c:189
internal_create_groups fs/sysfs/group.c:229 [inline]
sysfs_create_groups+0x59/0x120 fs/sysfs/group.c:255
create_dir lib/kobject.c:78 [inline]
kobject_add_internal+0x669/0xcd0 lib/kobject.c:240
kobject_add_varg lib/kobject.c:374 [inline]
kobject_init_and_add+0x12b/0x1a0 lib/kobject.c:457
btrfs_sysfs_add_qgroups+0x118/0x2f0 fs/btrfs/sysfs.c:2484
btrfs_quota_enable+0x275/0x1f70 fs/btrfs/qgroup.c:1034
btrfs_ioctl_quota_ctl+0x186/0x1f0 fs/btrfs/ioctl.c:3581
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd11b19f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd11bf95fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd11b425fa0 RCX: 00007fd11b19f559
RDX: 0000200000000580 RSI: 00000000c0109428 RDI: 0000000000000003
RBP: 00007fd11b236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd11b426038 R14: 00007fd11b425fa0 R15: 00007ffc076aec68
kobject: kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d)
------------[ cut here ]------------
kernfs: can not remove 'enabled', no directory
WARNING: fs/kernfs/dir.c:1785 at kernfs_remove_by_name_ns+0xd8/0x140 fs/kernfs/dir.c:1784, CPU#0: syz.0.0/5341
Modules linked in:
CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:kernfs_remove_by_name_ns+0xdb/0x140 fs/kernfs/dir.c:1784
Code: 47 bd ff f0 41 ff 07 4c 89 ff e8 90 ee ff ff 4c 89 ff e8 68 89 ff ff 31 ed eb 25 e8 7f 20 45 ff 48 8d 3d 08 2b 1f 0f 4c 89 fe <67> 48 0f b9 3a bd fe ff ff ff eb 1a e8 64 20 45 ff bd fe ff ff ff
RSP: 0018:ffffc9000e667b10 EFLAGS: 00010283
RAX: ffffffff8283e6b1 RBX: ffffffff8c7b0d40 RCX: 0000000000100000
RDX: ffffc9000ef2a000 RSI: ffffffff8c7b0da0 RDI: ffffffff91a311c0
RBP: ffffffff905efe48 R08: ffffffff8ff4c74b R09: 1ffffffff1fe98e9
R10: dffffc0000000000 R11: fffffbfff1fe98ea R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8c7b0da0
FS: 00007fd11bf966c0(0000) GS:ffff88808ac41000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000580 CR3: 0000000014b77000 CR4: 0000000000352ef0
Call Trace:
kernfs_remove_by_name include/linux/kernfs.h:644 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0x101/0x2e0 fs/sysfs/group.c:328
sysfs_remove_groups+0x54/0xb0 fs/sysfs/group.c:352
__kobject_del+0x83/0x310 lib/kobject.c:595
kobject_del+0x45/0x60 lib/kobject.c:627
btrfs_sysfs_del_qgroups+0x114/0x160 fs/btrfs/sysfs.c:2459
btrfs_sysfs_add_qgroups+0x28a/0x2f0 fs/btrfs/sysfs.c:2498
btrfs_quota_enable+0x275/0x1f70 fs/btrfs/qgroup.c:1034
btrfs_ioctl_quota_ctl+0x186/0x1f0 fs/btrfs/ioctl.c:3581
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd11b19f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd11bf95fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd11b425fa0 RCX: 00007fd11b19f559
RDX: 0000200000000580 RSI: 00000000c0109428 RDI: 0000000000000003
RBP: 00007fd11b236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd11b426038 R14: 00007fd11b425fa0 R15: 00007ffc076aec68
----------------
Code disassembly (best guess), 2 bytes skipped:
0: ff f0 push %rax
2: 41 ff 07 incl (%r15)
5: 4c 89 ff mov %r15,%rdi
8: e8 90 ee ff ff call 0xffffee9d
d: 4c 89 ff mov %r15,%rdi
10: e8 68 89 ff ff call 0xffff897d
15: 31 ed xor %ebp,%ebp
17: eb 25 jmp 0x3e
19: e8 7f 20 45 ff call 0xff45209d
1e: 48 8d 3d 08 2b 1f 0f lea 0xf1f2b08(%rip),%rdi # 0xf1f2b2d
25: 4c 89 fe mov %r15,%rsi
* 28: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2d: bd fe ff ff ff mov $0xfffffffe,%ebp
32: eb 1a jmp 0x4e
34: e8 64 20 45 ff call 0xff45209d
39: bd fe ff ff ff mov $0xfffffffe,%ebp