INFO: task jbd2/sda1-8:4498 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-syzkaller-00022-g32f88d65f01b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:25744 pid:4498 tgid:4498 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 io_schedule+0xbf/0x130 kernel/sched/core.c:9043 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x64/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:415 [inline] journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline] jbd2_journal_commit_transaction+0x4827/0x65d0 fs/jbd2/commit.c:887 kjournald2+0x1f8/0x8f0 fs/jbd2/journal.c:201 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 1 lock held by init/1: 1 lock held by kthreadd/2: 4 locks held by kworker/0:0/8: 5 locks held by kworker/0:1/9: 4 locks held by kworker/u8:0/11: 3 locks held by kworker/u8:1/12: 1 lock held by khungtaskd/30: #0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 4 locks held by kworker/u8:2/35: #0: ffff88802c21b148 ((wq_completion)wg-kex-wg2#7){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc90000ab7d80 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffff88805eaf1228 (&wg->static_identity.lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0xed/0x650 drivers/net/wireguard/noise.c:529 #3: ffff888061d64e38 (&handshake->lock){++++}-{3:3}, at: wg_noise_handshake_create_initiation+0x101/0x650 drivers/net/wireguard/noise.c:530 4 locks held by kworker/u8:3/51: 1 lock held by kworker/1:1H/57: 3 locks held by kworker/u8:4/61: 2 locks held by kworker/0:2/783: 3 locks held by kworker/u8:5/1083: 3 locks held by kworker/u8:6/1099: 5 locks held by kworker/u8:7/1109: 3 locks held by kworker/R-ipv6_/2620: #0: ffff88802a3ff948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc900091e7d10 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffffffff8f74b468 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4733 3 locks held by kworker/R-bat_e/2754: 4 locks held by kworker/u8:8/2875: 2 locks held by getty/4839: #0: ffff88802afc20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201 4 locks held by kworker/0:3/5072: 2 locks held by kworker/0:4/5164: 4 locks held by kworker/0:5/5181: 4 locks held by kworker/0:6/5198: 3 locks held by kworker/u8:11/5222: 3 locks held by kworker/u8:9/7670: 4 locks held by kworker/0:7/7856: #0: ffff888015481948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc900033c7d80 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffffffff8f74b468 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x7d/0x10e0 net/wireless/reg.c:2478 #3: ffff88805f9e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5966 [inline] #3: ffff88805f9e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_leave_invalid_chans net/wireless/reg.c:2466 [inline] #3: ffff88805f9e0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_check_chans_work+0x10a/0x10e0 net/wireless/reg.c:2481 3 locks held by kworker/u8:10/8199: 2 locks held by syz-executor.2/8805: 3 locks held by kworker/0:8/8837: 4 locks held by kworker/0:9/8840: 2 locks held by syz-executor.0/8942: #0: ffff8880790700e0 (&type->s_umount_key#76){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff8880790700e0 (&type->s_umount_key#76){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff8880790700e0 (&type->s_umount_key#76){+.+.}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:505 #1: ffff88802f48e0e0 (&type->s_umount_key#52){++++}-{3:3}, at: ovl_sync_fs+0x13a/0x1d0 fs/overlayfs/super.c:231 4 locks held by kworker/0:11/8956: 4 locks held by kworker/0:12/8957: 1 lock held by kworker/0:13/8958: 4 locks held by kworker/0:14/8959: 3 locks held by kworker/u8:12/9218: 5 locks held by syz-executor.1/9255: 6 locks held by syz-executor.4/9254: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00022-g32f88d65f01b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xf86/0x1240 kernel/hung_task.c:379 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 57 Comm: kworker/1:1H Not tainted 6.10.0-rc2-syzkaller-00022-g32f88d65f01b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: 0x0 (kblockd) RIP: 0010:__cant_migrate+0xe/0x250 kernel/sched/core.c:10231 Code: 00 8b 34 24 e9 fc fe ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 ba 00 00 00 00 00 fc ff df <41> 55 41 54 55 53 48 83 ec 50 48 c7 44 24 10 b3 8a b5 41 48 8d 5c RSP: 0018:ffffc90001377968 EFLAGS: 00000093 RAX: 0000000000000000 RBX: ffffc90003125000 RCX: ffffffff81994451 RDX: dffffc0000000000 RSI: 00000000000002a4 RDI: ffffffff8b333960 RBP: 1ffff9200026ef2f R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: ffffc90003125028 R15: ffffc90001377998 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2df24000 CR3: 000000005b42c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bpf_prog_run include/linux/filter.h:676 [inline] bpf_prog_run include/linux/filter.h:698 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline] bpf_trace_run4+0x20d/0x5a0 kernel/trace/bpf_trace.c:2446 __bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222 __traceiter_sched_switch+0x6c/0xc0 include/trace/events/sched.h:222 trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x252c/0x5d00 kernel/sched/core.c:6742 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:preempt_count_add+0x0/0x150 kernel/sched/core.c:5860 Code: 5d c3 cc cc cc cc e8 2f f7 89 09 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 c7 c0 e0 9b b4 94 55 48 ba 00 00 00 00 00 fc ff df RSP: 0018:ffffc90001377df8 EFLAGS: 00000202 RAX: 0000000000004008 RBX: ffff888016770000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff8b2cade0 RDI: 0000000000000001 RBP: ffffed1002cee000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8fe46497 R11: 0000000000000000 R12: ffff88801677002c R13: ffff888016770000 R14: ffffed1002b7fcc8 R15: fffffbfff1b01e40 __schedule_loop kernel/sched/core.c:6821 [inline] schedule+0xe0/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244