INFO: task jfsCommit:276 blocked for more than 143 seconds. Not tainted 5.15.157-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:25024 pid: 276 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 io_schedule+0x88/0x100 kernel/sched/core.c:8484 __lock_metapage+0x1ec/0x3c0 fs/jfs/jfs_metapage.c:49 lock_metapage fs/jfs/jfs_metapage.c:63 [inline] __get_metapage+0x495/0x1070 fs/jfs/jfs_metapage.c:640 diIAGRead+0xcb/0x130 fs/jfs/jfs_imap.c:2669 diFree+0xa7a/0x2fb0 fs/jfs/jfs_imap.c:956 jfs_evict_inode+0x329/0x440 fs/jfs/inode.c:156 evict+0x2a4/0x620 fs/inode.c:587 txUpdateMap+0x825/0x9e0 fs/jfs/jfs_txnmgr.c:2401 txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline] jfs_lazycommit+0x470/0xc30 fs/jfs/jfs_txnmgr.c:2766 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 3 locks held by kworker/u4:1/144: 2 locks held by kworker/u4:2/154: #0: ffff888011c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90001d67d20 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 2 locks held by jfsCommit/276: #0: ffff88807aab0920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x378/0x2fb0 fs/jfs/jfs_imap.c:886 #1: ffff8880707b5db8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x394/0x2fb0 fs/jfs/jfs_imap.c:891 3 locks held by kworker/0:3/1281: 2 locks held by getty/3269: #0: ffff88814b50a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc90002bab2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 3 locks held by kworker/0:4/3520: 6 locks held by kworker/1:19/5832: #0: ffff888016d61138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90003447d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffff88801f82e220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88801f82e220 (&dev->mutex){....}-{3:3}, at: hub_event+0x208/0x54c0 drivers/usb/core/hub.c:5768 #3: ffff888147ac15c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3125 [inline] #3: ffff888147ac15c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5350 [inline] #3: ffff888147ac15c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5594 [inline] #3: ffff888147ac15c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline] #3: ffff888147ac15c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2fc1/0x54c0 drivers/usb/core/hub.c:5822 #4: ffff8881479b9468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5351 [inline] #4: ffff8881479b9468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5594 [inline] #4: ffff8881479b9468 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline] #4: ffff8881479b9468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2fec/0x54c0 drivers/usb/core/hub.c:5822 #5: ffffffff8d388d50 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x1f4/0x1dd0 drivers/usb/core/hub.c:2987 3 locks held by kworker/u4:17/6593: 1 lock held by syz-executor.2/11657: 5 locks held by syz-executor.4/11666: 5 locks held by syz-executor.0/11660: 1 lock held by syz-executor.3/11670: 1 lock held by syz-executor.1/11671: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xe72/0xeb0 kernel/hung_task.c:295 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11666 Comm: syz-executor.4 Not tainted 5.15.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline] RIP: 0010:__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] RIP: 0010:_raw_spin_lock_irqsave+0x65/0x120 kernel/locking/spinlock.c:162 Code: b5 41 48 c7 44 24 08 6a 2e 14 8c 48 c7 44 24 10 70 49 27 8a 49 89 e5 49 c1 ed 03 48 b8 f1 f1 f1 f1 00 f3 f3 f3 4b 89 44 3d 00 <4c> 89 e3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 e7 e8 85 eb a2 f7 RSP: 0018:ffffc90004157580 EFLAGS: 00000a02 RAX: f3f3f300f1f1f1f1 RBX: ffff88805af9f000 RCX: ffffffff882ec450 RDX: ffff88805d0c0000 RSI: 0000000000000000 RDI: ffff88805af9f1c8 RBP: ffffc90004157610 R08: ffffffff88326c6b R09: ffffc90004157840 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900041575a0 R13: 1ffff9200082aeb0 R14: ffff88805af9f1c8 R15: dffffc0000000000 FS: 00007f928e6376c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020101000 CR3: 0000000054f20000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __skb_try_recv_datagram+0x198/0x6a0 net/core/datagram.c:264 __unix_dgram_recvmsg+0x3c1/0x1260 net/unix/af_unix.c:2314 ____sys_recvmsg+0x286/0x530 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2692 do_recvmmsg+0x36f/0x8f0 net/socket.c:2786 __sys_recvmmsg net/socket.c:2865 [inline] __do_sys_recvmmsg net/socket.c:2888 [inline] __se_sys_recvmmsg net/socket.c:2881 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2881 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f92900e5ea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f928e6370c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f9290214050 RCX: 00007f92900e5ea9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f92901324a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f9290214050 R15: 00007ffc15293278