INFO: task jfsCommit:104 blocked for more than 143 seconds. Not tainted 6.1.0-syzkaller-13781-gaeba12b26c79 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:23320 pid:104 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x995/0xe20 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 io_schedule+0x83/0x100 kernel/sched/core.c:8811 __lock_metapage+0x209/0x330 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x849/0xff0 fs/jfs/jfs_metapage.c:639 diIAGRead+0xca/0x130 fs/jfs/jfs_imap.c:2662 diFree+0x8fa/0x2c90 fs/jfs/jfs_imap.c:955 jfs_evict_inode+0x323/0x440 fs/jfs/inode.c:156 evict+0x2a4/0x620 fs/inode.c:664 txUpdateMap+0x8eb/0xaa0 fs/jfs/jfs_txnmgr.c:2362 txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline] jfs_lazycommit+0x488/0xb80 fs/jfs/jfs_txnmgr.c:2727 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d326e90 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d327690 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/28: #0: ffffffff8d326cc0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by jfsCommit/104: #0: ffff88802bc80920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x285/0x2c90 fs/jfs/jfs_imap.c:885 #1: ffff8880726f2f78 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x29b/0x2c90 fs/jfs/jfs_imap.c:890 2 locks held by getty/4744: #0: ffff88802c003098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177 2 locks held by syz-executor.0/5110: #0: ffff888078d980e0 (&type->s_umount_key#50){++++}-{3:3}, at: deactivate_super+0x96/0xd0 fs/super.c:362 #1: ffffffff8d32c338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #1: ffffffff8d32c338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 kernel/rcu/tree_exp.h:946 3 locks held by syz-executor.4/5122: 2 locks held by kworker/1:26/12133: #0: ffff888012872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0 #1: ffffc90014b47d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264 1 lock held by syz-executor.5/15844: #0: ffff88808467a0e0 (&type->s_umount_key#47/1){+.+.}-{3:3}, at: alloc_super+0x212/0x920 fs/super.c:228 1 lock held by syz-executor.2/15847: 2 locks held by syz-executor.1/15852: 5 locks held by syz-executor.4/15878: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-syzkaller-13781-gaeba12b26c79 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xcd5/0xd20 kernel/hung_task.c:377 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1065 Comm: kworker/u4:5 Not tainted 6.1.0-syzkaller-13781-gaeba12b26c79 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: phy11 ieee80211_iface_work RIP: 0010:__preempt_count_add arch/x86/include/asm/preempt.h:80 [inline] RIP: 0010:__local_bh_disable_ip+0xb4/0x1c0 kernel/softirq.c:331 Code: 00 9c 8f 44 24 40 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 0b 48 89 cb e8 9a 1e 8d 00 48 89 d9 48 8d 5c 24 20 4c 8b 74 24 40 fa <65> 44 01 3d 3c 36 af 7e 65 8b 05 35 36 af 7e 44 31 f8 a9 00 ff 00 RSP: 0018:ffffc90004cbf1c0 EFLAGS: 00000046 RAX: 1ffff92000997e40 RBX: ffffc90004cbf1e0 RCX: ffffffff89fe41f5 RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffc90004cbf200 RBP: ffffc90004cbf280 R08: dffffc0000000000 R09: fffff52000997eb4 R10: fffff52000997eb4 R11: 1ffff92000997eb3 R12: dffffc0000000000 R13: 1ffff92000997e38 R14: 0000000000000246 R15: 0000000000000201 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560acfcebae0 CR3: 000000007a076000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline] _raw_spin_lock_bh+0x18/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] cfg80211_bss_update+0x85/0x20b0 net/wireless/scan.c:1718 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2492 [inline] cfg80211_inform_bss_frame_data+0x97b/0x2230 net/wireless/scan.c:2525 ieee80211_bss_info_update+0x74f/0x1020 net/mac80211/scan.c:190 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x1945/0x2c40 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1581 [inline] ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1635 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308