Warning: Permanently added '10.128.0.221' (ED25519) to the list of known hosts. executing program [ 114.376853][ T4035] loop0: detected capacity change from 0 to 32768 [ 114.484725][ T4035] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 114.486851][ T4035] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 114.508435][ T4035] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 1ms [ 114.523429][ T7] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 114.525158][ T7] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 284.661529][ T27] INFO: task kworker/0:0:7 blocked for more than 143 seconds. [ 284.663422][ T27] Not tainted 5.15.180-syzkaller #0 [ 284.664820][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.666920][ T27] task:kworker/0:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x00000008 [ 284.669112][ T27] Workqueue: gfs_recovery gfs2_recover_func [ 284.670588][ T27] Call trace: [ 284.671775][ T27] __switch_to+0x308/0x588 [ 284.672975][ T27] __schedule+0xf10/0x1e48 [ 284.674083][ T27] schedule+0x11c/0x1c8 [ 284.675100][ T27] io_schedule+0x8c/0x194 [ 284.676168][ T27] wait_on_page_bit_common+0x6fc/0xc14 [ 284.677531][ T27] wait_on_page_bit+0x58/0x68 [ 284.678666][ T27] gfs2_jhead_process_page+0x1e0/0x6b0 [ 284.680060][ T27] gfs2_find_jhead+0xc1c/0xdb4 [ 284.681209][ T27] gfs2_recover_func+0x548/0x17fc [ 284.682453][ T27] process_one_work+0x790/0x11b8 [ 284.683686][ T27] worker_thread+0x910/0x1034 [ 284.684866][ T27] kthread+0x37c/0x45c [ 284.685865][ T27] ret_from_fork+0x10/0x20 [ 284.687034][ T27] INFO: task syz-executor175:4035 blocked for more than 143 seconds. [ 284.689024][ T27] Not tainted 5.15.180-syzkaller #0 [ 284.690382][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.692635][ T27] task:syz-executor175 state:D stack: 0 pid: 4035 ppid: 4034 flags:0x0000000d [ 284.694886][ T27] Call trace: [ 284.695711][ T27] __switch_to+0x308/0x588 [ 284.696811][ T27] __schedule+0xf10/0x1e48 [ 284.697883][ T27] schedule+0x11c/0x1c8 [ 284.698737][ T27] bit_wait+0x1c/0xac [ 284.699683][ T27] out_of_line_wait_on_bit+0x208/0x33c [ 284.700993][ T27] gfs2_recover_journal+0xf0/0x16c [ 284.702342][ T27] init_journal+0x1428/0x1f6c [ 284.703564][ T27] init_inodes+0xe0/0x2d8 [ 284.704687][ T27] gfs2_fill_super+0x1640/0x2010 [ 284.705917][ T27] get_tree_bdev+0x360/0x54c [ 284.706951][ T27] gfs2_get_tree+0x54/0x1b4 [ 284.708068][ T27] vfs_get_tree+0x90/0x274 [ 284.709143][ T27] do_new_mount+0x278/0x8fc [ 284.710217][ T27] path_mount+0x594/0x101c [ 284.711304][ T27] __arm64_sys_mount+0x510/0x5e0 [ 284.712657][ T27] invoke_syscall+0x98/0x2b8 [ 284.713814][ T27] el0_svc_common+0x138/0x258 [ 284.714936][ T27] do_el0_svc+0x58/0x14c [ 284.715967][ T27] el0_svc+0x7c/0x1f0 [ 284.716904][ T27] el0t_64_sync_handler+0x84/0xe4 [ 284.718077][ T27] el0t_64_sync+0x1a0/0x1a4 [ 284.719132][ T27] [ 284.719132][ T27] Showing all locks held in the system: [ 284.721107][ T27] 2 locks held by kworker/0:0/7: [ 284.722456][ T27] #0: ffff0000c2f6ad38 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 [ 284.725090][ T27] #1: ffff80001bce7c00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 [ 284.727790][ T27] 1 lock held by khungtaskd/27: [ 284.729053][ T27] #0: ffff800014d41be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 284.731350][ T27] 2 locks held by getty/3781: [ 284.732570][ T27] #0: ffff0000d3004098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 284.735071][ T27] #1: ffff80001d6de2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 [ 284.737580][ T27] 1 lock held by syz-executor175/4035: [ 284.738932][ T27] #0: ffff0000cd2360e0 (&type->s_umount_key#40/1){+.+.}-{3:3}, at: alloc_super+0x1b8/0x844 [ 284.741568][ T27] [ 284.742098][ T27] ============================================= [ 284.742098][ T27] [ 284.744194][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 284.745874][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.180-syzkaller #0 [ 284.747788][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 284.750150][ T27] Call trace: [ 284.750952][ T27] dump_backtrace+0x0/0x530 [ 284.752022][ T27] show_stack+0x2c/0x3c [ 284.753099][ T27] dump_stack_lvl+0x108/0x170 [ 284.754252][ T27] dump_stack+0x1c/0x58 [ 284.755358][ T27] panic+0x304/0x8bc [ 284.756326][ T27] hung_task_panic+0x0/0x2c [ 284.757528][ T27] kthread+0x37c/0x45c [ 284.758571][ T27] ret_from_fork+0x10/0x20 [ 284.759619][ T27] SMP: stopping secondary CPUs [ 284.760861][ T27] Kernel Offset: disabled [ 284.761953][ T27] CPU features: 0x8,000081c1,21302e40 [ 284.763236][ T27] Memory Limit: none [ 285.058109][ T27] Rebooting in 86400 seconds..