Warning: Permanently added '10.128.0.84' (ED25519) to the list of known hosts. executing program [ 660.116559][ T6013] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=6013 'syz-executor201' [ 660.309024][ T6013] loop0: detected capacity change from 0 to 32768 [ 660.314497][ T6013] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 660.316166][ T6013] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 660.322525][ T6013] gfs2: fsid=syz:syz.0: journal 0 mapped with 12 extents in 0ms [ 660.325689][ T1601] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 660.327057][ T1601] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 660.348804][ T1601] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 21ms [ 660.350792][ T1601] gfs2: fsid=syz:syz.0: jid=0: Done [ 660.352215][ T6013] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 660.434391][ T6013] gfs2: fsid=syz:syz.0: found 1 quota changes [ 858.082398][ T28] INFO: task syz-executor201:6012 blocked for more than 143 seconds. [ 858.084122][ T28] Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 [ 858.085572][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.087400][ T28] task:syz-executor201 state:D stack:0 pid:6012 ppid:6010 flags:0x0000000c [ 858.089369][ T28] Call trace: [ 858.090079][ T28] __switch_to+0x320/0x754 [ 858.091023][ T28] __schedule+0x1368/0x23b8 [ 858.091993][ T28] schedule+0xc4/0x170 [ 858.093007][ T28] schedule_timeout+0x1d8/0x348 [ 858.094052][ T28] gfs2_gl_hash_clear+0x178/0x2e0 [ 858.095077][ T28] gfs2_put_super+0x640/0x6d4 [ 858.096014][ T28] generic_shutdown_super+0x130/0x328 [ 858.097256][ T28] kill_block_super+0x70/0xdc [ 858.098203][ T28] gfs2_kill_sb+0x2cc/0x330 [ 858.099214][ T28] deactivate_locked_super+0xac/0x124 [ 858.100297][ T28] deactivate_super+0xe0/0x100 [ 858.101287][ T28] cleanup_mnt+0x34c/0x3dc [ 858.102270][ T28] __cleanup_mnt+0x20/0x30 [ 858.103305][ T28] task_work_run+0x230/0x2e0 [ 858.104233][ T28] do_notify_resume+0x2180/0x3c90 [ 858.105289][ T28] el0_svc+0x94/0x160 [ 858.106117][ T28] el0t_64_sync_handler+0x84/0xfc [ 858.107082][ T28] el0t_64_sync+0x190/0x194 [ 858.108093][ T28] [ 858.108093][ T28] Showing all locks held in the system: [ 858.109629][ T28] 1 lock held by rcu_tasks_kthre/13: [ 858.110670][ T28] #0: ffff80008e0c16d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 [ 858.112945][ T28] 1 lock held by rcu_tasks_trace/14: [ 858.114046][ T28] #0: ffff80008e0c1a90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 [ 858.116220][ T28] 1 lock held by khungtaskd/28: [ 858.117183][ T28] #0: ffff80008e0c1500 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 858.119239][ T28] 2 locks held by getty/5734: [ 858.120192][ T28] #0: ffff0000d4b4f098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 858.122260][ T28] #1: ffff800092ec02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 [ 858.124436][ T28] 1 lock held by syz-executor201/6012: [ 858.125541][ T28] #0: ffff0000c7f6c0e0 (&type->s_umount_key#41){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 [ 858.127682][ T28] [ 858.128164][ T28] ============================================= [ 858.128164][ T28] [ 858.129869][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 858.131250][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 [ 858.133242][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 858.135400][ T28] Call trace: [ 858.136100][ T28] dump_backtrace+0x1b8/0x1e4 [ 858.137125][ T28] show_stack+0x2c/0x44 [ 858.138011][ T28] dump_stack_lvl+0xd0/0x124 [ 858.139042][ T28] dump_stack+0x1c/0x28 [ 858.139909][ T28] panic+0x2d0/0x7b4 [ 858.140765][ T28] hung_task_panic+0x0/0x2c [ 858.141745][ T28] kthread+0x288/0x310 [ 858.142598][ T28] ret_from_fork+0x10/0x20 [ 858.143545][ T28] SMP: stopping secondary CPUs [ 858.144627][ T28] Kernel Offset: disabled [ 858.145487][ T28] CPU features: 0x0000004,0e008010,c4017203 [ 858.146761][ T28] Memory Limit: none [ 858.526172][ T28] Rebooting in 86400 seconds..