Warning: Permanently added '10.128.0.3' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 286.459250][ T27] INFO: task syz-executor106:4195 blocked for more than 143 seconds. [ 286.467483][ T27] Not tainted 5.15.180-syzkaller #0 [ 286.473574][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.482328][ T27] task:syz-executor106 state:D stack:26064 pid: 4195 ppid: 4180 flags:0x00004002 [ 286.491845][ T27] Call Trace: [ 286.495161][ T27] [ 286.498137][ T27] __schedule+0x12c4/0x45b0 [ 286.502705][ T27] ? perf_event_release_kernel+0x5f4/0x900 [ 286.508572][ T27] ? __lock_acquire+0x1ff0/0x1ff0 [ 286.513620][ T27] ? release_firmware_map_entry+0x190/0x190 [ 286.519580][ T27] ? __mutex_unlock_slowpath+0x218/0x750 [ 286.525248][ T27] schedule+0x11b/0x1f0 [ 286.529466][ T27] perf_pending_task_sync+0x13c/0x1c0 [ 286.534875][ T27] _free_event+0x34/0xe60 [ 286.539259][ T27] perf_event_release_kernel+0x873/0x900 [ 286.544915][ T27] ? __might_sleep+0xc0/0xc0 [ 286.549551][ T27] ? calc_timer_values+0x420/0x420 [ 286.554695][ T27] ? ima_file_free+0xeb/0x3c0 [ 286.559473][ T27] perf_release+0x37/0x40 [ 286.563816][ T27] ? perf_mmap+0x13f0/0x13f0 [ 286.568466][ T27] __fput+0x3fe/0x8e0 [ 286.572474][ T27] task_work_run+0x129/0x1a0 [ 286.577087][ T27] do_exit+0x6a3/0x2480 [ 286.581310][ T27] ? put_task_struct+0x80/0x80 [ 286.586097][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 286.592191][ T27] ? vtime_user_exit+0x2d1/0x400 [ 286.597159][ T27] do_group_exit+0x144/0x310 [ 286.601819][ T27] __x64_sys_exit_group+0x3b/0x40 [ 286.606868][ T27] do_syscall_64+0x3b/0x80 [ 286.611337][ T27] ? clear_bhb_loop+0x15/0x70 [ 286.616033][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 286.621993][ T27] RIP: 0033:0x7ff4e46c2c49 [ 286.626420][ T27] RSP: 002b:00007ffda5a5a168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 286.634892][ T27] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff4e46c2c49 [ 286.642916][ T27] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 286.651077][ T27] RBP: 00007ff4e473d290 R08: ffffffffffffffb8 R09: 0000000000000006 [ 286.659183][ T27] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007ff4e473d290 [ 286.667154][ T27] R13: 0000000000000000 R14: 00007ff4e473dce0 R15: 00007ff4e4693ea0 [ 286.675204][ T27] [ 286.678272][ T27] [ 286.678272][ T27] Showing all locks held in the system: [ 286.685999][ T27] 1 lock held by khungtaskd/27: [ 286.690893][ T27] #0: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.700355][ T27] 2 locks held by getty/3928: [ 286.705042][ T27] #0: ffff88802c476098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.714852][ T27] #1: ffffc900025c62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 286.725016][ T27] [ 286.727335][ T27] ============================================= [ 286.727335][ T27] [ 286.735810][ T27] NMI backtrace for cpu 0 [ 286.740243][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.180-syzkaller #0 [ 286.748212][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 286.758364][ T27] Call Trace: [ 286.761648][ T27] [ 286.764568][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 286.769243][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 286.774868][ T27] ? panic+0x860/0x860 [ 286.778933][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 286.784040][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 286.788972][ T27] ? __wake_up_klogd+0xd5/0x100 [ 286.793840][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 286.800099][ T27] ? _printk+0xd1/0x120 [ 286.804285][ T27] ? panic+0x860/0x860 [ 286.808354][ T27] ? __wake_up_klogd+0xcc/0x100 [ 286.813201][ T27] ? panic+0x860/0x860 [ 286.817264][ T27] ? wq_watchdog_touch+0xeb/0x170 [ 286.822312][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.828374][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 286.834351][ T27] watchdog+0xe72/0xeb0 [ 286.838506][ T27] kthread+0x3f6/0x4f0 [ 286.842567][ T27] ? hungtask_pm_notify+0x50/0x50 [ 286.847589][ T27] ? kthread_blkcg+0xd0/0xd0 [ 286.852182][ T27] ret_from_fork+0x1f/0x30 [ 286.856613][ T27] [ 286.859752][ T27] Sending NMI from CPU 0 to CPUs 1: [ 286.865009][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10 [ 286.866042][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 286.880747][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.180-syzkaller #0 [ 286.888715][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 286.898760][ T27] Call Trace: [ 286.902046][ T27] [ 286.904967][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 286.909648][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 286.915273][ T27] ? panic+0x860/0x860 [ 286.919340][ T27] panic+0x318/0x860 [ 286.923225][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 286.928848][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 286.934996][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 286.940203][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.946266][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 286.952412][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 286.958578][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 286.964734][ T27] watchdog+0xeb0/0xeb0 [ 286.968890][ T27] kthread+0x3f6/0x4f0 [ 286.972949][ T27] ? hungtask_pm_notify+0x50/0x50 [ 286.977966][ T27] ? kthread_blkcg+0xd0/0xd0 [ 286.982568][ T27] ret_from_fork+0x1f/0x30 [ 286.986988][ T27] [ 286.990550][ T27] Kernel Offset: disabled [ 286.994885][ T27] Rebooting in 86400 seconds..