Warning: Permanently added '10.128.1.92' (ED25519) to the list of known hosts. executing program [ 126.035771][ T4309] loop0: detected capacity change from 0 to 32768 [ 126.038463][ T4309] ======================================================= [ 126.038463][ T4309] WARNING: The mand mount option has been deprecated and [ 126.038463][ T4309] and is ignored by this kernel. Remove the mand [ 126.038463][ T4309] option from the mount to silence this warning. [ 126.038463][ T4309] ======================================================= [ 126.053797][ T4309] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 126.056096][ T4309] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 126.067302][ T4309] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms [ 126.071084][ T14] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 126.072857][ T14] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 126.108598][ T14] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 35ms [ 126.110899][ T14] gfs2: fsid=syz:syz.0: jid=0: Done [ 126.112706][ T4309] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 284.643427][ T28] INFO: task syz-executor178:4308 blocked for more than 143 seconds. [ 284.645645][ T28] Not tainted 6.1.131-syzkaller #0 [ 284.647173][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.649450][ T28] task:syz-executor178 state:D stack:0 pid:4308 ppid:4306 flags:0x00000004 [ 284.651815][ T28] Call trace: [ 284.652668][ T28] __switch_to+0x308/0x598 [ 284.653933][ T28] __schedule+0xef4/0x1d44 [ 284.655109][ T28] schedule+0xc4/0x170 [ 284.656167][ T28] bit_wait+0x1c/0xac [ 284.657177][ T28] out_of_line_wait_on_bit+0x208/0x334 [ 284.658532][ T28] gfs2_glock_wait+0xb8/0x298 [ 284.659786][ T28] gfs2_glock_nq+0xa90/0x11d8 [ 284.661016][ T28] __gfs2_lookup+0x140/0x28c [ 284.662227][ T28] gfs2_lookup+0x2c/0x3c [ 284.663400][ T28] __lookup_slow+0x250/0x374 [ 284.664622][ T28] lookup_slow+0x60/0x84 [ 284.665751][ T28] walk_component+0x280/0x36c [ 284.666961][ T28] path_lookupat+0x13c/0x3d0 [ 284.668173][ T28] filename_lookup+0x1d4/0x4e0 [ 284.669452][ T28] user_path_at_empty+0x5c/0x84 [ 284.670720][ T28] __arm64_sys_umount+0xf8/0x17c [ 284.672002][ T28] invoke_syscall+0x98/0x2bc [ 284.673199][ T28] el0_svc_common+0x138/0x258 [ 284.674563][ T28] do_el0_svc+0x58/0x13c [ 284.675709][ T28] el0_svc+0x58/0x168 [ 284.676753][ T28] el0t_64_sync_handler+0x84/0xf0 [ 284.678090][ T28] el0t_64_sync+0x18c/0x190 [ 284.679325][ T28] [ 284.679325][ T28] Showing all locks held in the system: [ 284.681300][ T28] 1 lock held by rcu_tasks_kthre/12: [ 284.682662][ T28] #0: ffff800015cd79b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 [ 284.685550][ T28] 1 lock held by rcu_tasks_trace/13: [ 284.686969][ T28] #0: ffff800015cd81b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 [ 284.689916][ T28] 1 lock held by khungtaskd/28: [ 284.691155][ T28] #0: ffff800015cd77e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 284.693733][ T28] 2 locks held by getty/4056: [ 284.695017][ T28] #0: ffff0000d680e098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 284.697489][ T28] #1: ffff80001d9202f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 [ 284.700140][ T28] 1 lock held by syz-executor178/4308: [ 284.701529][ T28] #0: ffff0000e26a3710 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 [ 284.704323][ T28] [ 284.704931][ T28] ============================================= [ 284.704931][ T28] [ 284.707124][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 284.708957][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.131-syzkaller #0 [ 284.710996][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 284.713659][ T28] Call trace: [ 284.714570][ T28] dump_backtrace+0x1c8/0x1f4 [ 284.715865][ T28] show_stack+0x2c/0x3c [ 284.716969][ T28] dump_stack_lvl+0x108/0x170 [ 284.718241][ T28] dump_stack+0x1c/0x58 [ 284.719436][ T28] panic+0x300/0x804 [ 284.720486][ T28] hung_task_panic+0x0/0x2c [ 284.721697][ T28] kthread+0x250/0x2d8 [ 284.722793][ T28] ret_from_fork+0x10/0x20 [ 284.724000][ T28] SMP: stopping secondary CPUs [ 284.725258][ T28] Kernel Offset: disabled [ 284.726411][ T28] CPU features: 0x080000,02070084,26017203 [ 284.727937][ T28] Memory Limit: none [ 285.032711][ T28] Rebooting in 86400 seconds..