PM: suspend entry (s2idle) Freezing user space processes ------------[ cut here ]------------ WARNING: kernel/freezer.c:139 at __set_task_frozen+0x1bc/0x210 kernel/freezer.c:145, CPU#0: syz.4.2770/11588 Modules linked in: CPU: 0 UID: 0 PID: 11588 Comm: syz.4.2770 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) pstate: 100000c5 (nzcV daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __set_task_frozen+0x1bc/0x210 kernel/freezer.c:139 lr : __set_task_frozen+0xc8/0x210 kernel/freezer.c:121 sp : ffff8000a2437720 x29: ffff8000a2437720 x28: 0000000000000000 x27: ffff8000883ce280 x26: 00000000000003e8 x25: 00000000000000c0 x24: ffff0000151b61e0 x23: 0000000000000000 x22: 1fffe00002a36afb x21: ffff8000883fa000 x20: ffff0000151b57d8 x19: ffff0000151b57c0 x18: 0000000000000000 x17: 1ffff00014314ea4 x16: 00000000000008bb x15: ffff8000883fa918 x14: 1ffff0001107f523 x13: ffff80008aae45c8 x12: ffff600002a36aff x11: 1fffe00002a36afe x10: ffff600002a36afe x9 : dfff800000000000 x8 : ffff0000151b57f4 x7 : 0000000000000001 x6 : ffff600002a36afe x5 : ffff0000151b57f4 x4 : ffff600002a36aff x3 : 1fffe00002a36c60 x2 : 0000000000000003 x1 : 0000000000000000 x0 : 0000000000000003 Call trace: __set_task_frozen+0x1bc/0x210 kernel/freezer.c:145 (P) task_call_func+0x13c/0x200 kernel/sched/core.c:4568 __freeze_task kernel/freezer.c:150 [inline] freeze_task+0x138/0x1f0 kernel/freezer.c:169 try_to_freeze_tasks+0x1cc/0x454 kernel/power/process.c:54 freeze_processes+0xc0/0x1f0 kernel/power/process.c:137 suspend_freeze_processes kernel/power/power.h:281 [inline] suspend_prepare kernel/power/suspend.c:391 [inline] enter_state kernel/power/suspend.c:613 [inline] pm_suspend kernel/power/suspend.c:648 [inline] pm_suspend+0x228/0x5bc kernel/power/suspend.c:640 state_store+0xa0/0x15c kernel/power/main.c:819 kobj_attr_store+0x3c/0x78 lib/kobject.c:842 sysfs_kf_write+0xc4/0x10c fs/sysfs/file.c:145 kernfs_fop_write_iter+0x2a4/0x460 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x5b4/0xcd0 fs/read_write.c:687 ksys_write+0xf0/0x1e0 fs/read_write.c:739 __do_sys_write fs/read_write.c:750 [inline] __se_sys_write fs/read_write.c:747 [inline] __arm64_sys_write+0x70/0xa0 fs/read_write.c:747 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x74/0x240 arch/arm64/kernel/syscall.c:49 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:121 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x58/0x21c arch/arm64/kernel/entry-common.c:797 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:816 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606 irq event stamp: 4478 hardirqs last enabled at (4477): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] hardirqs last enabled at (4477): [] _raw_spin_unlock_irqrestore+0x80/0xb4 kernel/locking/spinlock.c:221 hardirqs last disabled at (4478): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:153 [inline] hardirqs last disabled at (4478): [] _raw_spin_lock_irqsave+0x7c/0x80 kernel/locking/spinlock.c:181 softirqs last enabled at (4230): [] __do_softirq+0x14/0x20 kernel/softirq.c:703 softirqs last disabled at (4187): [] __do_softirq+0x14/0x20 kernel/softirq.c:703 ---[ end trace 0000000000000000 ]--- Freezing user space processes completed (elapsed 0.138 seconds) OOM killer disabled. Freezing remaining freezable tasks Freezing remaining freezable tasks completed (elapsed 0.035 seconds) printk: Suspending console(s) (use no_console_suspend to debug)