INFO: task syz.5.176:7392 blocked for more than 143 seconds.
      Tainted: G        W           6.17.0-rc1-syzkaller-00165-gee94b00c1a64 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.176       state:D stack:15112 pid:7392  tgid:7390  ppid:6660   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7058
 schedule_timeout+0x9a/0x270 kernel/time/sleep_timeout.c:75
 ___down_common kernel/locking/semaphore.c:268 [inline]
 __down_common+0x319/0x6a0 kernel/locking/semaphore.c:293
 down+0x80/0xd0 kernel/locking/semaphore.c:100
 bch2_run_recovery_passes+0x177/0x210 fs/bcachefs/recovery_passes.c:609
 bch2_fs_recovery+0x28c9/0x3a50 fs/bcachefs/recovery.c:1050
 bch2_fs_start+0xaaf/0xda0 fs/bcachefs/super.c:1213
 bch2_fs_get_tree+0xb39/0x1520 fs/bcachefs/fs.c:2488
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1815
 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805
 do_mount fs/namespace.c:4133 [inline]
 __do_sys_mount fs/namespace.c:4344 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4321
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe38aca038a
RSP: 002b:00007fe388efde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe388efdef0 RCX: 00007fe38aca038a
RDX: 00002000000000c0 RSI: 0000200000000000 RDI: 00007fe388efdeb0
RBP: 00002000000000c0 R08: 00007fe388efdef0 R09: 0000000000810000
R10: 0000000000810000 R11: 0000000000000246 R12: 0000200000000000
R13: 00007fe388efdeb0 R14: 000000000000593a R15: 00002000000006c0
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Tainted: G        W           6.17.0-rc1-syzkaller-00165-gee94b00c1a64 #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf93/0xfe0 kernel/hung_task.c:491
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10393 Comm: dhcpcd-run-hook Tainted: G        W           6.17.0-rc1-syzkaller-00165-gee94b00c1a64 #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x29/0x80 kernel/kcov.c:217
Code: 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 b0 f5 91 65 8b 35 d8 54 37 10 81 e6 00 00 ff 00 ba 00 01 00 00 23 91 0c 0b 00 00 <89> d7 09 f7 74 11 85 f6 75 39 85 d2 74 35 83 b9 d4 15 00 00 00 74
RSP: 0018:ffffc900063bf5a0 EFLAGS: 00000246
RAX: ffffffff82098b71 RBX: dffffc0000000000 RCX: ffff88802b191dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000109
RBP: 0000000000000109 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff9400006a3a7 R12: ffff88807ef8c00c
R13: 00000000000001fd R14: 00000000000001fd R15: ffffc900063bfaa0
FS:  0000000000000000(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6cb8eca7d0 CR3: 000000000d7a6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __tlb_remove_folio_pages_size+0x241/0x5a0 mm/mmu_gather.c:200
 zap_present_folio_ptes mm/memory.c:1528 [inline]
 zap_present_ptes mm/memory.c:1581 [inline]
 do_zap_pte_range mm/memory.c:1682 [inline]
 zap_pte_range mm/memory.c:1726 [inline]
 zap_pmd_range mm/memory.c:1818 [inline]
 zap_pud_range mm/memory.c:1847 [inline]
 zap_p4d_range mm/memory.c:1868 [inline]
 unmap_page_range+0x1bed/0x3c10 mm/memory.c:1889
 unmap_single_vma mm/memory.c:1932 [inline]
 unmap_vmas+0x399/0x580 mm/memory.c:1976
 exit_mmap+0x248/0xb50 mm/mmap.c:1280
 __mmput+0xcb/0x3d0 kernel/fork.c:1130
 exit_mm+0x1da/0x2c0 kernel/exit.c:582
 do_exit+0x648/0x2300 kernel/exit.c:949
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6cb8dc86c5
Code: Unable to access opcode bytes at 0x7f6cb8dc869b.
RSP: 002b:00007ffeaadb4cc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffeaadb4f04 RCX: 00007f6cb8dc86c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00007ffeaadb4dc0 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffeaadb5000 R14: 00007f6cb8fd8000 R15: 000055775e80bd98
 </TASK>