Warning: Permanently added '10.128.0.57' (ED25519) to the list of known hosts. executing program [ 123.259838][ T4041] loop0: detected capacity change from 0 to 8192 [ 123.361784][ T4041] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 123.364488][ T4041] REISERFS (device loop0): using ordered data mode [ 123.366207][ T4041] reiserfs: using flush barriers [ 123.368870][ T4041] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.373658][ T4041] REISERFS (device loop0): checking transaction log (loop0) [ 123.436882][ T4041] REISERFS (device loop0): Using tea hash to sort names [ 123.439742][ T4041] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 123.475310][ T4041] REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [2 4 0x0 SD] (nlink == 1) not found (pos 3) [ 123.479145][ T4041] REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [2 4 0x0 SD] (nlink == 1) not found (pos 3) [ 123.483008][ T4041] REISERFS warning: vs-16090 direntry_bytes_number: bytes number is asked for direntry [ 284.649178][ T27] INFO: task kworker/0:0:7 blocked for more than 143 seconds. [ 284.651269][ T27] Not tainted 5.15.180-syzkaller #0 [ 284.652736][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.654952][ T27] task:kworker/0:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x00000008 [ 284.657325][ T27] Workqueue: events_long flush_old_commits [ 284.658882][ T27] Call trace: [ 284.659819][ T27] __switch_to+0x308/0x588 [ 284.661717][ T27] __schedule+0xf10/0x1e48 [ 284.662916][ T27] schedule+0x11c/0x1c8 [ 284.663989][ T27] schedule_preempt_disabled+0x18/0x2c [ 284.665416][ T27] __mutex_lock_common+0xba0/0x2154 [ 284.666772][ T27] mutex_lock_nested+0xa4/0xf8 [ 284.667988][ T27] reiserfs_write_lock+0x7c/0xe8 [ 284.669456][ T27] flush_old_commits+0x1b0/0x2b8 [ 284.671194][ T27] process_one_work+0x790/0x11b8 [ 284.672492][ T27] worker_thread+0x910/0x1034 [ 284.673724][ T27] kthread+0x37c/0x45c [ 284.674803][ T27] ret_from_fork+0x10/0x20 [ 284.676065][ T27] [ 284.676065][ T27] Showing all locks held in the system: [ 284.678054][ T27] 4 locks held by kworker/0:0/7: [ 284.680241][ T27] #0: ffff0000c0021138 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 [ 284.683067][ T27] #1: ffff80001bcf7c00 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 [ 284.686309][ T27] #2: ffff0000cd6e40e0 (&type->s_umount_key#40){.+.+}-{3:3}, at: flush_old_commits+0xcc/0x2b8 [ 284.689021][ T27] #3: ffff0000d921d090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 [ 284.691967][ T27] 1 lock held by khungtaskd/27: [ 284.693215][ T27] #0: ffff800014d51b60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 284.695704][ T27] 2 locks held by getty/3792: [ 284.696946][ T27] #0: ffff0000d2dab098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 284.700051][ T27] #1: ffff80001d6ae2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 [ 284.702821][ T27] 3 locks held by syz-executor410/4041: [ 284.704308][ T27] [ 284.704941][ T27] ============================================= [ 284.704941][ T27] [ 284.707149][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 284.708958][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.180-syzkaller #0 [ 284.711168][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 284.713973][ T27] Call trace: [ 284.714969][ T27] dump_backtrace+0x0/0x530 [ 284.716226][ T27] show_stack+0x2c/0x3c [ 284.717299][ T27] dump_stack_lvl+0x108/0x170 [ 284.718509][ T27] dump_stack+0x1c/0x58 [ 284.719563][ T27] panic+0x304/0x8bc [ 284.720593][ T27] hung_task_panic+0x0/0x2c [ 284.721824][ T27] kthread+0x37c/0x45c [ 284.722891][ T27] ret_from_fork+0x10/0x20 [ 284.724064][ T27] SMP: stopping secondary CPUs [ 284.725363][ T27] Kernel Offset: disabled [ 284.726512][ T27] CPU features: 0x8,000081c1,21302e40 [ 284.727953][ T27] Memory Limit: none [ 285.026653][ T27] Rebooting in 86400 seconds..