INFO: task syz.2.556:17746 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.556       state:D stack:24976 pid:17746 tgid:17746 ppid:15566  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 __bch2_two_state_lock+0x229/0x2c0 fs/bcachefs/two_state_shared_lock.c:7
 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline]
 bch2_page_fault+0x31f/0x960 fs/bcachefs/fs-io-pagecache.c:592
 __do_fault+0x135/0x390 mm/memory.c:4907
 do_shared_fault mm/memory.c:5386 [inline]
 do_fault mm/memory.c:5460 [inline]
 do_pte_missing mm/memory.c:3979 [inline]
 handle_pte_fault+0xfcf/0x5ed0 mm/memory.c:5801
 __handle_mm_fault mm/memory.c:5944 [inline]
 handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fa3f7d4da98
RSP: 002b:00007ffce24d6f68 EFLAGS: 00010246
RAX: 00000000200015c0 RBX: 0000000000000004 RCX: 0030656c69662f2e
RDX: 0000000000000008 RSI: 0030656c69662f2e RDI: 00000000200015c0
RBP: 00007fa3f7f77ba0 R08: 00007fa3f7c00000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00000000000401ad
R13: 00007fa3f7f76080 R14: 0000000000000032 R15: fffffffffffffffe
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
 watchdog+0xff6/0x1040 kernel/hung_task.c:397
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5193 Comm: udevd Not tainted 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:185 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0xbc/0x120 kernel/kcov.c:351
Code: c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 84 5c 64 7e 25 00 01 ff 00 74 11 3d 00 01 00 00 75 de 41 83 bb 1c 16 00 00 00 74 d4 <41> 8b 83 f8 15 00 00 83 f8 03 75 c8 49 8b 8b 00 16 00 00 45 8b bb
RSP: 0018:ffffc9000305f0d8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffff88807c00bc00
RDX: 000000000000000b RSI: ffffffff8fffc260 RDI: 0000000000000000
RBP: ffffc9000305f1f0 R08: 0000000000000001 R09: ffffffff8bbcbbd4
R10: 0000000000000012 R11: ffff88807c00bc00 R12: ffffffff8c58f0b7
R13: dffffc0000000000 R14: 000000000000000b R15: ffffffff8c58f0af
FS:  00007f50bdcd1c80(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff6ba50808 CR3: 00000000323e4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 vsnprintf+0x184/0x1da0 lib/vsprintf.c:2804
 audit_log_vformat+0x35c/0x9e0 kernel/audit.c:1978
 audit_log_format+0xdb/0x130 kernel/audit.c:2012
 smack_log_callback+0xa1/0x1b0 security/smack/smack_access.c:315
 common_lsm_audit+0x109/0x1ce0 security/lsm_audit.c:456
 smack_log+0x421/0x540 security/smack/smack_access.c:383
 smk_tskacc+0x300/0x370 security/smack/smack_access.c:253
 smack_inode_permission+0x2dc/0x380 security/smack/smack_lsm.c:1234
 security_inode_permission+0x101/0x320 security/security.c:2319
 may_lookup fs/namei.c:1819 [inline]
 link_path_walk+0x204/0xea0 fs/namei.c:2425
 path_openat+0x266/0x3590 fs/namei.c:3983
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f50bd9169a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff6ba5e160 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055f9c7160040 RCX: 00007f50bd9169a4
RDX: 0000000000080141 RSI: 000055f9c71430d8 RDI: 00000000ffffff9c
RBP: 000055f9c71430d8 R08: 00000000ffffffff R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000246 R12: 0000000000080141
R13: ffffffffffffffff R14: 00000000ffffffff R15: 00000000ffffffff
 </TASK>