INFO: task jfsCommit:275 blocked for more than 143 seconds. Not tainted 5.15.155-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:26080 pid: 275 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 INFO: task jfsCommit:276 blocked for more than 143 seconds. Not tainted 5.15.155-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:26328 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/26: #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by jfsCommit/275: #0: ffff888062520920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x378/0x2fb0 fs/jfs/jfs_imap.c:886 #1: ffff88805e12ddb8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x394/0x2fb0 fs/jfs/jfs_imap.c:891 2 locks held by jfsCommit/276: #0: ffff888053d28920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x378/0x2fb0 fs/jfs/jfs_imap.c:886 #1: ffff88805e112638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x394/0x2fb0 fs/jfs/jfs_imap.c:891 2 locks held by getty/3258: #0: ffff88814afb1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc9000209b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 2 locks held by syz-executor.2/6864: #0: ffff88807879e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365 #1: ffffffff8ccbbb88 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1452 2 locks held by syz-executor.0/7898: #0: ffff88807f23e0e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365 #1: ffffffff8ccbbb88 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1452 1 lock held by syz-executor.1/9064: #0: ffff88802403a0e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365 2 locks held by syz-executor.3/11515: #0: ffff8880738ae0e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365 #1: ffffffff8ccbbb88 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1452 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.15.155-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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1162 Comm: kworker/u4:3 Not tainted 5.15.155-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: phy70 ieee80211_iface_work RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:write_comp_data kernel/kcov.c:217 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x4/0x80 kernel/kcov.c:270 Code: 48 c7 44 11 08 06 00 00 00 48 89 7c 11 10 48 89 74 11 18 4c 89 44 11 20 49 ff c2 4c 89 12 c3 0f 1f 80 00 00 00 00 4c 8b 04 24 <65> 48 8b 15 74 10 82 7e 65 8b 05 75 10 82 7e a9 00 01 ff 00 74 10 RSP: 0018:ffffc90005b7f6b8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88801deb9dc0 RDX: ffff88801deb9dc0 RSI: 0000000000000006 RDI: 0000000000000002 RBP: ffffc90005b7f868 R08: ffffffff89b73661 R09: ffffc90005b7f390 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888079185874 R14: 0000000000000008 R15: 0000000000000006 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560de01e2030 CR3: 00000000243a8000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee802_11_parse_elems_crc+0x2a1/0x1130 net/mac80211/util.c:1489 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2238 [inline] ieee80211_bss_info_update+0x86d/0xc80 net/mac80211/scan.c:212 ieee80211_rx_bss_info net/mac80211/ibss.c:1123 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1614 [inline] ieee80211_ibss_rx_queued_mgmt+0x175e/0x2af0 net/mac80211/ibss.c:1643 ieee80211_iface_process_skb net/mac80211/iface.c:1441 [inline] ieee80211_iface_work+0x78f/0xcc0 net/mac80211/iface.c:1495 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300