INFO: task syz.4.21897:2875 blocked for more than 122 seconds.
      Not tainted 6.12.30-syzkaller-g73009db42b37 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.21897     state:D stack:0     pid:2875  tgid:2869  ppid:1078   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5945 [inline]
 __schedule+0x132b/0x1e00 kernel/sched/core.c:7789
 __schedule_loop kernel/sched/core.c:7870 [inline]
 schedule+0xc6/0x240 kernel/sched/core.c:7885
 request_wait_answer fs/fuse/dev.c:476 [inline]
 __fuse_request_send fs/fuse/dev.c:491 [inline]
 __fuse_simple_request+0xdb1/0x1980 fs/fuse/dev.c:586
 fuse_simple_request fs/fuse/fuse_i.h:1248 [inline]
 fuse_do_getattr+0x350/0x630 fs/fuse/dir.c:1586
 fuse_update_get_attr+0x8cd/0x2600 fs/fuse/dir.c:1642
 fuse_getattr+0x3bf/0x630 fs/fuse/dir.c:2482
 vfs_getattr_nosec+0x25b/0x2f0 fs/stat.c:166
 vfs_getattr fs/stat.c:207 [inline]
 vfs_statx_path+0x70/0x300 fs/stat.c:251
 vfs_statx+0x130/0x200 fs/stat.c:315
 vfs_fstatat+0xe5/0x1d0 fs/stat.c:341
 __do_sys_newfstatat fs/stat.c:505 [inline]
 __se_sys_newfstatat+0xcd/0x340 fs/stat.c:499
 __x64_sys_newfstatat+0x9f/0xc0 fs/stat.c:499
 x64_sys_call+0x1821/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:263
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd5e8b8e9a9
RSP: 002b:00007fd5e9a65038 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007fd5e8db6080 RCX: 00007fd5e8b8e9a9
RDX: 0000200000000540 RSI: 0000200000000500 RDI: ffffffffffffff9c
RBP: 00007fd5e8c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd5e8db6080 R15: 00007ffe3c010458
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.30-syzkaller-g73009db42b37 #0 e78244f41b0e2dd383d6ada64249d7f830c3c2f3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
 watchdog+0xd8f/0xed0 kernel/hung_task.c:423
 kthread+0x2c7/0x370 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.30-syzkaller-g73009db42b37 #0 e78244f41b0e2dd383d6ada64249d7f830c3c2f3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:sched_clock+0x17/0x60 arch/x86/kernel/tsc.c:284
Code: 44 00 00 b8 42 7f f2 6a 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 56 53 e8 40 0d 4a 00 65 ff 05 81 4b c9 7e <e8> 04 0f 4a 04 48 89 c3 31 f6 65 ff 0d 70 4b c9 7e 41 0f 94 c6 40
RSP: 0018:ffffc90000007de0 EFLAGS: 00000082
RAX: ffffffff813b9dc0 RBX: 0000000000000000 RCX: ffffffff87215540
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: ffffc90000007df0 R08: ffff8881f6e4f807 R09: 1ffff1103edc9f00
R10: dffffc0000000000 R11: ffffed103edc9f01 R12: ffff8881f6e28e40
R13: dffffc0000000000 R14: ffffc90000007e60 R15: 1ffff92000000fc8
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1635583178 CR3: 000000010e260000 CR4: 00000000003526b0
Call Trace:
 <IRQ>
 sched_clock_cpu+0x75/0x400 kernel/sched/clock.c:394
 irqtime_account_irq+0x51/0x1c0 kernel/sched/cputime.c:69
 account_softirq_enter include/linux/vtime.h:136 [inline]
 handle_softirqs+0xe6/0x630 kernel/softirq.c:580
 __do_softirq kernel/softirq.c:641 [inline]
 invoke_softirq kernel/softirq.c:458 [inline]
 __irq_exit_rcu+0x48/0xc0 kernel/softirq.c:690
 irq_exit_rcu+0xd/0x30 kernel/softirq.c:702
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline]
 sysvec_call_function_single+0x7f/0x90 arch/x86/kernel/smp.c:266
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:709
RIP: 0010:pv_native_safe_halt+0x17/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc b8 5f 2a 30 4f 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 73 8c 41 00 f3 0f 1e fa 55 48 89 e5 fb f4 <5d> e9 c3 54 02 00 cc cc cc b8 00 00 00 00 90 90 90 90 90 90 90 90
RSP: 0018:ffffffff87207da0 EFLAGS: 000002c6
RAX: ffff8881f6e00000 RBX: ffffffff87215540 RCX: ffffffff8585c00e
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000001511be4
RBP: ffffffff87207da0 R08: ffff8881f6e39733 R09: 1ffff1103edc72e6
R10: dffffc0000000000 R11: ffffed103edc72e7 R12: 1ffffffff0e42aa8
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87ca7d68
 arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
 default_idle+0x17/0x30 arch/x86/kernel/process.c:748
 arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:785
 default_idle_call+0x3f/0x80 kernel/sched/idle.c:117
 cpuidle_idle_call kernel/sched/idle.c:185 [inline]
 do_idle+0x1a0/0x470 kernel/sched/idle.c:326
 cpu_startup_entry+0x48/0x70 kernel/sched/idle.c:424
 rest_init+0x10b/0x130 init/main.c:748
 start_kernel+0x46a/0x4bb init/main.c:1135
 x86_64_start_reservations+0x2e/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x6a/0x7b arch/x86/kernel/head64.c:488
 common_startup_64+0x13b/0x157
 </TASK>