INFO: task syz.9.1135:16046 blocked for more than 143 seconds.
      Tainted: G        W           6.17.0-rc1-syzkaller-00211-g90d970cade8e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.1135      state:D stack:24712 pid:16046 tgid:16045 ppid:14855  task_flags:0x400140 flags:0x00004004
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
 io_schedule+0x81/0xe0 kernel/sched/core.c:7903
 folio_wait_bit_common+0x6b5/0xb90 mm/filemap.c:1317
 folio_lock include/linux/pagemap.h:1133 [inline]
 release_metapage+0x103/0xab0 fs/jfs/jfs_metapage.c:870
 discard_metapage fs/jfs/jfs_metapage.h:88 [inline]
 __get_metapage+0x9a0/0xde0 fs/jfs/jfs_metapage.c:753
 dtSplitPage+0x7f8/0x3b20 fs/jfs/jfs_dtree.c:1471
 dtSplitUp fs/jfs/jfs_dtree.c:1092 [inline]
 dtInsert+0x109b/0x5f40 fs/jfs/jfs_dtree.c:871
 jfs_create+0x6c8/0xa80 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x14fd/0x3840 fs/namei.c:4043
 do_filp_open+0x1fa/0x410 fs/namei.c:4073
 do_sys_openat2+0x121/0x1c0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1461
 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: 0033:0x7f0eaf6bebe9
RSP: 002b:00007f0ead91e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0eaf8e5fa0 RCX: 00007f0eaf6bebe9
RDX: 000000000000275a RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f0eaf741e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0eaf8e6038 R14: 00007f0eaf8e5fa0 R15: 00007fff9f1191f8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Tainted: G        W           6.17.0-rc1-syzkaller-00211-g90d970cade8e #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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 18736 Comm: udevadm Tainted: G        W           6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0033:0x5579853fcb04
Code: 45 84 c0 75 15 84 d2 75 11 31 d2 48 89 ee 4c 89 e7 e8 a0 80 fd ff 85 c0 74 2c 48 89 df e8 f4 22 00 00 48 89 c3 48 85 c0 75 9c <4c> 89 f7 e8 e4 22 00 00 49 89 c6 48 85 c0 0f 85 57 ff ff ff 31 c0
RSP: 002b:00007ffd0175c470 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000049
RDX: 0000000000000000 RSI: 00005579857b6380 RDI: 00005579857b7a70
RBP: 00005579857b63a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00005579857a5da1 R11: 0000000000000000 R12: 00005579857a5dc0
R13: 00005579857a5da0 R14: 00005579857a5d60 R15: 00005579857b6380
FS:  00007fa60c5fe880 GS:  0000000000000000