[  465.973914][ T5932] gfs2: fsid=syz:syz.0: file system withdrawn
[  466.301403][ T7202] loop0: detected capacity change from 0 to 32768
[  466.315956][ T7202] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  466.329862][ T7202] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  466.359730][ T7202] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  466.377564][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  466.384908][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  466.437963][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 53ms
[  466.445519][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  466.451886][ T7202] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  466.699405][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  466.715819][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  466.731507][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  466.747851][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  466.763708][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  466.763731][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  466.763741][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  466.763769][  T808] Call Trace:
[  466.763776][  T808]  <TASK>
[  466.763783][  T808]  dump_stack_lvl+0xe8/0x150
[  466.763808][  T808]  gfs2_withdraw+0xc3/0x1b0
[  466.763828][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  466.763865][  T808]  inode_go_instantiate+0xea/0x1220
[  466.763887][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  466.763910][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  466.763931][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  466.763954][  T808]  gfs2_instantiate+0x168/0x220
[  466.763975][  T808]  gfs2_inode_lookup+0x727/0xc50
[  466.764002][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  466.764027][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  466.764044][  T808]  ? trace_hrtimer_start+0x82/0x230
[  466.764066][  T808]  ? __lock_acquire+0x6b5/0x2cf0
[  466.764096][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  466.764118][  T808]  delete_work_func+0x311/0x4d0
[  466.764136][  T808]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  466.764158][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  466.764191][  T808]  ? process_one_work+0x8bb/0x1780
[  466.764212][  T808]  process_one_work+0x9ab/0x1780
[  466.764253][  T808]  ? __pfx_process_one_work+0x10/0x10
[  466.764274][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  466.764308][  T808]  worker_thread+0xba8/0x11e0
[  466.764346][  T808]  kthread+0x388/0x470
[  466.764365][  T808]  ? __pfx_worker_thread+0x10/0x10
[  466.764378][  T808]  ? __pfx_kthread+0x10/0x10
[  466.764397][  T808]  ret_from_fork+0x51e/0xb90
[  466.764421][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  466.764441][  T808]  ? __switch_to+0xc7d/0x1450
[  466.764463][  T808]  ? __pfx_kthread+0x10/0x10
[  466.764481][  T808]  ret_from_fork_asm+0x1a/0x30
[  466.764512][  T808]  </TASK>
[  466.764518][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  466.787866][ T5851] loop0: writeback error on inode 9394, offset 4608000, sector 27864
[  466.797815][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
[  467.596582][ T7211] loop0: detected capacity change from 0 to 32768
[  467.616533][ T7211] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  467.632548][ T7211] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  467.671045][ T7211] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  467.697777][ T5932] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  467.705755][ T5932] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  467.796118][ T5932] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 90ms
[  467.808303][ T5932] gfs2: fsid=syz:syz.0: jid=0: Done
[  467.814357][ T7211] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  468.075845][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  468.091478][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  468.108399][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  468.125955][ T5932] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  468.141691][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  468.141710][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  468.141719][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  468.141743][  T809] Call Trace:
[  468.141750][  T809]  <TASK>
[  468.141755][  T809]  dump_stack_lvl+0xe8/0x150
[  468.141777][  T809]  gfs2_withdraw+0xc3/0x1b0
[  468.141793][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  468.141815][  T809]  inode_go_instantiate+0xea/0x1220
[  468.141831][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  468.141849][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  468.141865][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  468.141883][  T809]  gfs2_instantiate+0x168/0x220
[  468.141899][  T809]  gfs2_inode_lookup+0x727/0xc50
[  468.141919][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  468.141938][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  468.141952][  T809]  ? trace_hrtimer_start+0x82/0x230
[  468.141969][  T809]  ? __lock_acquire+0x6b5/0x2cf0
[  468.141991][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  468.142008][  T809]  delete_work_func+0x311/0x4d0
[  468.142022][  T809]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  468.142039][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  468.142063][  T809]  ? process_one_work+0x8bb/0x1780
[  468.142081][  T809]  process_one_work+0x9ab/0x1780
[  468.142112][  T809]  ? __pfx_process_one_work+0x10/0x10
[  468.142128][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  468.142159][  T809]  worker_thread+0xba8/0x11e0
[  468.142179][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  468.142195][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  468.142208][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  468.142225][  T809]  kthread+0x388/0x470
[  468.142239][  T809]  ? __pfx_worker_thread+0x10/0x10
[  468.142256][  T809]  ? __pfx_kthread+0x10/0x10
[  468.142271][  T809]  ret_from_fork+0x51e/0xb90
[  468.142291][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  468.142307][  T809]  ? __switch_to+0xc7d/0x1450
[  468.142325][  T809]  ? __pfx_kthread+0x10/0x10
[  468.142339][  T809]  ret_from_fork_asm+0x1a/0x30
[  468.142363][  T809]  </TASK>
[  468.142371][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  468.184118][ T6488] loop0: writeback error on inode 9394, offset 4480000, sector 27612
[  468.191793][ T5932] gfs2: fsid=syz:syz.0: file system withdrawn
Warning: Permanently added '10.128.1.128' (ED25519) to the list of known hosts.
executing program
[  469.150635][ T7222] loop0: detected capacity change from 0 to 32768
[  469.167536][ T7222] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  469.181282][ T7222] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  469.208540][ T7222] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  469.218366][ T5932] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  469.225446][ T5932] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  469.292163][ T5932] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 66ms
[  469.299961][ T5932] gfs2: fsid=syz:syz.0: jid=0: Done
[  469.305383][ T7222] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  469.551127][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  469.566703][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  469.582181][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  469.598216][ T5851] CPU: 1 UID: 0 PID: 5851 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  469.598239][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  469.598249][ T5851] Workqueue: gfs2-delete/syz:syz delete_work_func
[  469.598274][ T5851] Call Trace:
[  469.598281][ T5851]  <TASK>
[  469.598289][ T5851]  dump_stack_lvl+0xe8/0x150
[  469.598313][ T5851]  gfs2_withdraw+0xc3/0x1b0
[  469.598334][ T5851]  gfs2_meta_buffer+0x225/0x2e0
[  469.598361][ T5851]  inode_go_instantiate+0xea/0x1220
[  469.598382][ T5851]  ? do_raw_spin_lock+0x12b/0x2f0
[  469.598404][ T5851]  ? __pfx_inode_go_instantiate+0x10/0x10
[  469.598424][ T5851]  ? do_raw_spin_unlock+0xf5/0x210
[  469.598446][ T5851]  gfs2_instantiate+0x168/0x220
[  469.598467][ T5851]  gfs2_inode_lookup+0x727/0xc50
[  469.598491][ T5851]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  469.598514][ T5851]  ? gfs2_lookup_by_inum+0x52/0x100
[  469.598532][ T5851]  ? trace_hrtimer_start+0x82/0x230
[  469.598552][ T5851]  ? __lock_acquire+0x6b5/0x2cf0
[  469.598590][ T5851]  gfs2_lookup_by_inum+0x52/0x100
[  469.598613][ T5851]  delete_work_func+0x311/0x4d0
[  469.598631][ T5851]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  469.598653][ T5851]  ? __pfx_delete_work_func+0x10/0x10
[  469.598686][ T5851]  ? process_one_work+0x8bb/0x1780
[  469.598707][ T5851]  process_one_work+0x9ab/0x1780
[  469.598749][ T5851]  ? __pfx_process_one_work+0x10/0x10
[  469.598768][ T5851]  ? do_raw_spin_lock+0x12b/0x2f0
[  469.598799][ T5851]  worker_thread+0xba8/0x11e0
[  469.598822][ T5851]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  469.598841][ T5851]  ? __kthread_parkme+0x7a/0x1f0
[  469.598858][ T5851]  ? __kthread_parkme+0x19c/0x1f0
[  469.598880][ T5851]  kthread+0x388/0x470
[  469.598899][ T5851]  ? __pfx_worker_thread+0x10/0x10
[  469.598913][ T5851]  ? __pfx_kthread+0x10/0x10
[  469.598932][ T5851]  ret_from_fork+0x51e/0xb90
[  469.598957][ T5851]  ? __pfx_ret_from_fork+0x10/0x10
[  469.598976][ T5851]  ? __switch_to+0xc7d/0x1450
[  469.598999][ T5851]  ? __pfx_kthread+0x10/0x10
[  469.599018][ T5851]  ret_from_fork_asm+0x1a/0x30
[  469.599050][ T5851]  </TASK>
[  469.599056][ T5851] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  469.643304][ T6488] loop0: writeback error on inode 9394, offset 3712000, sector 26100
[  469.653162][ T5997] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  470.142528][ T7229] loop0: detected capacity change from 0 to 32768
[  470.160056][ T7229] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  470.175706][ T7229] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  470.207525][ T7229] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  470.224141][ T5997] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  470.231036][ T5997] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  470.289042][ T5997] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 58ms
[  470.296714][ T5997] gfs2: fsid=syz:syz.0: jid=0: Done
[  470.302304][ T7229] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  470.552711][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  470.569817][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  470.569841][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  470.569852][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  470.569878][  T809] Call Trace:
[  470.569886][  T809]  <TASK>
[  470.569892][  T809]  dump_stack_lvl+0xe8/0x150
[  470.569918][  T809]  gfs2_withdraw+0xc3/0x1b0
[  470.569938][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  470.569964][  T809]  inode_go_instantiate+0xea/0x1220
[  470.569985][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  470.570007][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  470.570027][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  470.570050][  T809]  gfs2_instantiate+0x168/0x220
[  470.570071][  T809]  gfs2_inode_lookup+0x727/0xc50
[  470.570101][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  470.570124][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  470.570141][  T809]  ? trace_hrtimer_start+0x82/0x230
[  470.570162][  T809]  ? __lock_acquire+0x6b5/0x2cf0
[  470.570188][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  470.570208][  T809]  delete_work_func+0x311/0x4d0
[  470.570225][  T809]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  470.570245][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  470.570273][  T809]  ? process_one_work+0x8bb/0x1780
[  470.570293][  T809]  process_one_work+0x9ab/0x1780
[  470.570332][  T809]  ? __pfx_process_one_work+0x10/0x10
[  470.570351][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  470.570382][  T809]  worker_thread+0xba8/0x11e0
[  470.570402][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  470.570421][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  470.570438][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  470.570456][  T809]  kthread+0x388/0x470
[  470.570468][  T809]  ? __pfx_worker_thread+0x10/0x10
[  470.570476][  T809]  ? __pfx_kthread+0x10/0x10
[  470.570487][  T809]  ret_from_fork+0x51e/0xb90
[  470.570503][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  470.570524][  T809]  ? __switch_to+0xc7d/0x1450
[  470.570539][  T809]  ? __pfx_kthread+0x10/0x10
[  470.570550][  T809]  ret_from_fork_asm+0x1a/0x30
[  470.570568][  T809]  </TASK>
[  470.570813][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  470.783952][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  470.790269][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  470.820467][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  475.814032][ T5997] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  476.135939][ T7237] loop0: detected capacity change from 0 to 32768
[  476.147558][ T7237] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  476.160375][ T7237] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  476.195846][ T7237] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  476.205936][ T5997] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  476.214080][ T5997] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  476.258767][ T5997] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 44ms
[  476.267224][ T5997] gfs2: fsid=syz:syz.0: jid=0: Done
[  476.272559][ T7237] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  476.524023][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  476.545519][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  476.562843][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  476.578657][ T5937] CPU: 0 UID: 0 PID: 5937 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  476.578682][ T5937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  476.578692][ T5937] Workqueue: gfs2-delete/syz:syz delete_work_func
[  476.578719][ T5937] Call Trace:
[  476.578725][ T5937]  <TASK>
[  476.578732][ T5937]  dump_stack_lvl+0xe8/0x150
[  476.578758][ T5937]  gfs2_withdraw+0xc3/0x1b0
[  476.578777][ T5937]  gfs2_meta_buffer+0x225/0x2e0
[  476.578803][ T5937]  inode_go_instantiate+0xea/0x1220
[  476.578823][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  476.578845][ T5937]  ? __pfx_inode_go_instantiate+0x10/0x10
[  476.578865][ T5937]  ? do_raw_spin_unlock+0xf5/0x210
[  476.578887][ T5937]  gfs2_instantiate+0x168/0x220
[  476.578907][ T5937]  gfs2_inode_lookup+0x727/0xc50
[  476.578933][ T5937]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  476.578957][ T5937]  ? gfs2_lookup_by_inum+0x52/0x100
[  476.578974][ T5937]  ? trace_hrtimer_start+0x82/0x230
[  476.578996][ T5937]  ? __lock_acquire+0x6b5/0x2cf0
[  476.579025][ T5937]  gfs2_lookup_by_inum+0x52/0x100
[  476.579046][ T5937]  delete_work_func+0x311/0x4d0
[  476.579064][ T5937]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  476.579086][ T5937]  ? __pfx_delete_work_func+0x10/0x10
[  476.579117][ T5937]  ? process_one_work+0x8bb/0x1780
[  476.579149][ T5937]  process_one_work+0x9ab/0x1780
[  476.579189][ T5937]  ? __pfx_process_one_work+0x10/0x10
[  476.579209][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  476.579242][ T5937]  worker_thread+0xba8/0x11e0
[  476.579267][ T5937]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  476.579287][ T5937]  ? __kthread_parkme+0x7a/0x1f0
[  476.579304][ T5937]  ? __kthread_parkme+0x19c/0x1f0
[  476.579326][ T5937]  kthread+0x388/0x470
[  476.579345][ T5937]  ? __pfx_worker_thread+0x10/0x10
[  476.579358][ T5937]  ? __pfx_kthread+0x10/0x10
[  476.579378][ T5937]  ret_from_fork+0x51e/0xb90
[  476.579407][ T5937]  ? __pfx_ret_from_fork+0x10/0x10
[  476.579426][ T5937]  ? __switch_to+0xc7d/0x1450
[  476.579450][ T5937]  ? __pfx_kthread+0x10/0x10
[  476.579469][ T5937]  ret_from_fork_asm+0x1a/0x30
[  476.579517][ T5937]  </TASK>
[  476.579743][ T5937] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  476.605025][ T5997] loop0: writeback error on inode 9394, offset 3840000, sector 26352
[  476.613825][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  477.118986][ T7245] loop0: detected capacity change from 0 to 32768
[  477.140612][ T7245] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  477.149330][ T7245] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  477.183979][ T7245] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  477.199773][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  477.206811][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  477.262586][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 55ms
[  477.270745][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  477.276320][ T7245] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  477.515873][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  477.532735][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  477.550106][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  477.565850][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  477.565873][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  477.565883][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  477.565908][  T808] Call Trace:
[  477.565914][  T808]  <TASK>
[  477.565922][  T808]  dump_stack_lvl+0xe8/0x150
[  477.565946][  T808]  gfs2_withdraw+0xc3/0x1b0
[  477.565965][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  477.566004][  T808]  inode_go_instantiate+0xea/0x1220
[  477.566023][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  477.566043][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  477.566065][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  477.566079][  T808]  gfs2_instantiate+0x168/0x220
[  477.566095][  T808]  gfs2_inode_lookup+0x727/0xc50
[  477.566121][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  477.566144][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  477.566160][  T808]  ? trace_hrtimer_start+0x82/0x230
[  477.566178][  T808]  ? __lock_acquire+0x6b5/0x2cf0
[  477.566204][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  477.566281][  T808]  delete_work_func+0x311/0x4d0
[  477.566298][  T808]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  477.566321][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  477.566350][  T808]  ? process_one_work+0x8bb/0x1780
[  477.566369][  T808]  process_one_work+0x9ab/0x1780
[  477.566405][  T808]  ? __pfx_process_one_work+0x10/0x10
[  477.566424][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  477.566454][  T808]  worker_thread+0xba8/0x11e0
[  477.566489][  T808]  kthread+0x388/0x470
[  477.566505][  T808]  ? __pfx_worker_thread+0x10/0x10
[  477.566518][  T808]  ? __pfx_kthread+0x10/0x10
[  477.566536][  T808]  ret_from_fork+0x51e/0xb90
[  477.566559][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  477.566578][  T808]  ? __switch_to+0xc7d/0x1450
[  477.566597][  T808]  ? __pfx_kthread+0x10/0x10
[  477.566615][  T808]  ret_from_fork_asm+0x1a/0x30
[  477.566645][  T808]  </TASK>
[  477.566652][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  477.767893][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  477.774276][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  477.805195][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  482.773999][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  483.092380][ T7253] loop0: detected capacity change from 0 to 32768
[  483.109244][ T7253] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  483.127027][ T7253] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  483.163032][ T7253] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  483.175094][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  483.182109][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  483.249893][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 67ms
[  483.257481][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  483.263273][ T7253] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  483.514291][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  483.514673][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  483.532764][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  483.532793][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  483.532805][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  483.532832][  T808] Call Trace:
[  483.532840][  T808]  <TASK>
[  483.532848][  T808]  dump_stack_lvl+0xe8/0x150
[  483.532873][  T808]  gfs2_withdraw+0xc3/0x1b0
[  483.532893][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  483.532919][  T808]  inode_go_instantiate+0xea/0x1220
[  483.532940][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  483.532962][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  483.532983][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  483.533005][  T808]  gfs2_instantiate+0x168/0x220
[  483.533032][  T808]  gfs2_inode_lookup+0x727/0xc50
[  483.533058][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  483.533082][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  483.533100][  T808]  ? trace_hrtimer_start+0x82/0x230
[  483.533122][  T808]  ? __lock_acquire+0x6b5/0x2cf0
[  483.533150][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  483.533171][  T808]  delete_work_func+0x311/0x4d0
[  483.533189][  T808]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  483.533211][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  483.533260][  T808]  ? process_one_work+0x8bb/0x1780
[  483.533282][  T808]  process_one_work+0x9ab/0x1780
[  483.533322][  T808]  ? __pfx_process_one_work+0x10/0x10
[  483.533342][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  483.533375][  T808]  worker_thread+0xba8/0x11e0
[  483.533414][  T808]  kthread+0x388/0x470
[  483.533432][  T808]  ? __pfx_worker_thread+0x10/0x10
[  483.533445][  T808]  ? __pfx_kthread+0x10/0x10
[  483.533463][  T808]  ret_from_fork+0x51e/0xb90
[  483.533488][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  483.533507][  T808]  ? __switch_to+0xc7d/0x1450
[  483.533529][  T808]  ? __pfx_kthread+0x10/0x10
[  483.533548][  T808]  ret_from_fork_asm+0x1a/0x30
[  483.533578][  T808]  </TASK>
[  483.533585][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  483.742577][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  483.748857][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  483.780437][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  488.774032][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  489.097502][ T7262] loop0: detected capacity change from 0 to 32768
[  489.118999][ T7262] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  489.130358][ T7262] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  489.167499][ T7262] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  489.177029][ T5997] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  489.188994][ T5997] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  489.230451][ T5997] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 41ms
[  489.238016][ T5997] gfs2: fsid=syz:syz.0: jid=0: Done
[  489.243294][ T7262] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  489.487988][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  489.505720][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  489.521819][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  489.537691][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  489.537714][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  489.537725][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  489.537750][    T9] Call Trace:
[  489.537757][    T9]  <TASK>
[  489.537764][    T9]  dump_stack_lvl+0xe8/0x150
[  489.537788][    T9]  gfs2_withdraw+0xc3/0x1b0
[  489.537806][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  489.537831][    T9]  inode_go_instantiate+0xea/0x1220
[  489.537851][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  489.537866][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  489.537878][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  489.537892][    T9]  gfs2_instantiate+0x168/0x220
[  489.537904][    T9]  gfs2_inode_lookup+0x727/0xc50
[  489.537920][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  489.537934][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  489.537944][    T9]  ? trace_hrtimer_start+0x82/0x230
[  489.537957][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  489.537975][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  489.537988][    T9]  delete_work_func+0x311/0x4d0
[  489.537999][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  489.538013][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  489.538031][    T9]  ? process_one_work+0x8bb/0x1780
[  489.538045][    T9]  process_one_work+0x9ab/0x1780
[  489.538074][    T9]  ? __pfx_process_one_work+0x10/0x10
[  489.538092][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  489.538132][    T9]  worker_thread+0xba8/0x11e0
[  489.538169][    T9]  kthread+0x388/0x470
[  489.538187][    T9]  ? __pfx_worker_thread+0x10/0x10
[  489.538201][    T9]  ? __pfx_kthread+0x10/0x10
[  489.538213][    T9]  ret_from_fork+0x51e/0xb90
[  489.538229][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  489.538241][    T9]  ? __switch_to+0xc7d/0x1450
[  489.538256][    T9]  ? __pfx_kthread+0x10/0x10
[  489.538267][    T9]  ret_from_fork_asm+0x1a/0x30
[  489.538285][    T9]  </TASK>
[  489.538289][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  489.740121][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  489.746451][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  489.776147][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  494.774039][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  495.101081][ T7278] loop0: detected capacity change from 0 to 32768
[  495.119033][ T7278] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  495.130947][ T7278] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  495.165096][ T7278] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  495.180994][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  495.188055][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  495.253632][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 65ms
[  495.263811][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  495.269066][ T7278] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  495.510821][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  495.527730][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  495.543330][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  495.559410][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  495.559434][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  495.559444][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  495.559471][  T808] Call Trace:
[  495.559478][  T808]  <TASK>
[  495.559484][  T808]  dump_stack_lvl+0xe8/0x150
[  495.559503][ T7278] gfs2: fsid=syz:syz.0: GFS2:adding buf while withdrawn! 0x3e4c
[  495.559509][  T808]  gfs2_withdraw+0xc3/0x1b0
[  495.559527][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  495.559552][  T808]  inode_go_instantiate+0xea/0x1220
[  495.559570][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  495.559589][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  495.559605][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  495.559624][  T808]  gfs2_instantiate+0x168/0x220
[  495.559640][  T808]  gfs2_inode_lookup+0x727/0xc50
[  495.559665][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  495.559688][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  495.559705][  T808]  ? trace_hrtimer_start+0x82/0x230
[  495.559726][  T808]  ? __lock_acquire+0x6b5/0x2cf0
[  495.559755][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  495.559776][  T808]  delete_work_func+0x311/0x4d0
[  495.559793][  T808]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  495.559816][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  495.559855][  T808]  ? process_one_work+0x8bb/0x1780
[  495.559876][  T808]  process_one_work+0x9ab/0x1780
[  495.559917][  T808]  ? __pfx_process_one_work+0x10/0x10
[  495.559936][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  495.559970][  T808]  worker_thread+0xba8/0x11e0
[  495.560007][  T808]  kthread+0x388/0x470
[  495.560026][  T808]  ? __pfx_worker_thread+0x10/0x10
[  495.560039][  T808]  ? __pfx_kthread+0x10/0x10
[  495.560058][  T808]  ret_from_fork+0x51e/0xb90
[  495.560082][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  495.560101][  T808]  ? __switch_to+0xc7d/0x1450
[  495.560125][  T808]  ? __pfx_kthread+0x10/0x10
[  495.560143][  T808]  ret_from_fork_asm+0x1a/0x30
[  495.560173][  T808]  </TASK>
[  495.560179][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  495.573284][ T7278] gfs2: fsid=syz:syz.0: GFS2:adding buf while withdrawn! 0x3e4c
[  495.781043][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  495.787465][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  495.817693][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  500.774660][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  501.091869][ T7286] loop0: detected capacity change from 0 to 32768
[  501.108712][ T7286] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  501.127250][ T7286] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  501.160824][ T7286] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  501.172438][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  501.179347][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  501.244517][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 65ms
[  501.252257][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  501.257535][ T7286] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  501.514073][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  501.531553][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  501.533735][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  501.533759][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  501.533769][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  501.533796][  T809] Call Trace:
[  501.533803][  T809]  <TASK>
[  501.533810][  T809]  dump_stack_lvl+0xe8/0x150
[  501.533836][  T809]  gfs2_withdraw+0xc3/0x1b0
[  501.533857][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  501.533883][  T809]  inode_go_instantiate+0xea/0x1220
[  501.533904][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  501.533926][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  501.533947][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  501.533969][  T809]  gfs2_instantiate+0x168/0x220
[  501.533987][  T809]  gfs2_inode_lookup+0x727/0xc50
[  501.534012][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  501.534031][  T809]  ? check_path+0x21/0x40
[  501.534050][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  501.534068][  T809]  ? add_lock_to_list+0xc7/0x100
[  501.534087][  T809]  ? lockdep_unlock+0x5d/0xd0
[  501.534105][  T809]  ? __lock_acquire+0x146e/0x2cf0
[  501.534134][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  501.534155][  T809]  delete_work_func+0x311/0x4d0
[  501.534179][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  501.534210][  T809]  ? process_one_work+0x8bb/0x1780
[  501.534230][  T809]  process_one_work+0x9ab/0x1780
[  501.534270][  T809]  ? __pfx_process_one_work+0x10/0x10
[  501.534290][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  501.534323][  T809]  worker_thread+0xba8/0x11e0
[  501.534346][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  501.534366][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  501.534383][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  501.534404][  T809]  kthread+0x388/0x470
[  501.534422][  T809]  ? __pfx_worker_thread+0x10/0x10
[  501.534435][  T809]  ? __pfx_kthread+0x10/0x10
[  501.534454][  T809]  ret_from_fork+0x51e/0xb90
[  501.534478][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  501.534498][  T809]  ? __switch_to+0xc7d/0x1450
[  501.534521][  T809]  ? __pfx_kthread+0x10/0x10
[  501.534540][  T809]  ret_from_fork_asm+0x1a/0x30
[  501.534571][  T809]  </TASK>
[  501.534578][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  501.593914][ T1313] ieee802154 phy0 wpan0: encryption failed: -22
[  501.608185][  T809] loop0: writeback error on inode 9394, offset 1408000, sector 21564
[  501.612763][ T1313] ieee802154 phy1 wpan1: encryption failed: -22
[  501.657175][ T5997] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  502.137127][ T7294] loop0: detected capacity change from 0 to 32768
[  502.156885][ T7294] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  502.168317][ T7294] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  502.199125][ T7294] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  502.209010][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  502.219673][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  502.284886][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 65ms
[  502.294073][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  502.299351][ T7294] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  502.546011][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  502.562044][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  502.577402][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  502.597198][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  502.616707][ T5937] CPU: 0 UID: 0 PID: 5937 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  502.616730][ T5937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  502.616739][ T5937] Workqueue: gfs2-delete/syz:syz delete_work_func
[  502.616765][ T5937] Call Trace:
[  502.616771][ T5937]  <TASK>
[  502.616777][ T5937]  dump_stack_lvl+0xe8/0x150
[  502.616802][ T5937]  gfs2_withdraw+0xc3/0x1b0
[  502.616822][ T5937]  gfs2_meta_buffer+0x225/0x2e0
[  502.616846][ T5937]  inode_go_instantiate+0xea/0x1220
[  502.616866][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  502.616887][ T5937]  ? __pfx_inode_go_instantiate+0x10/0x10
[  502.616907][ T5937]  ? do_raw_spin_unlock+0xf5/0x210
[  502.616929][ T5937]  gfs2_instantiate+0x168/0x220
[  502.616950][ T5937]  gfs2_inode_lookup+0x727/0xc50
[  502.616977][ T5937]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  502.617001][ T5937]  ? gfs2_lookup_by_inum+0x52/0x100
[  502.617019][ T5937]  ? trace_hrtimer_start+0x82/0x230
[  502.617041][ T5937]  ? __lock_acquire+0x6b5/0x2cf0
[  502.617075][ T5937]  gfs2_lookup_by_inum+0x52/0x100
[  502.617097][ T5937]  delete_work_func+0x311/0x4d0
[  502.617115][ T5937]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  502.617138][ T5937]  ? __pfx_delete_work_func+0x10/0x10
[  502.617170][ T5937]  ? process_one_work+0x8bb/0x1780
[  502.617191][ T5937]  process_one_work+0x9ab/0x1780
[  502.617232][ T5937]  ? __pfx_process_one_work+0x10/0x10
[  502.617260][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  502.617294][ T5937]  worker_thread+0xba8/0x11e0
[  502.617319][ T5937]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  502.617339][ T5937]  ? __kthread_parkme+0x7a/0x1f0
[  502.617357][ T5937]  ? __kthread_parkme+0x19c/0x1f0
[  502.617379][ T5937]  kthread+0x388/0x470
[  502.617397][ T5937]  ? __pfx_worker_thread+0x10/0x10
[  502.617409][ T5937]  ? __pfx_kthread+0x10/0x10
[  502.617427][ T5937]  ret_from_fork+0x51e/0xb90
[  502.617452][ T5937]  ? __pfx_ret_from_fork+0x10/0x10
[  502.617471][ T5937]  ? __switch_to+0xc7d/0x1450
[  502.617495][ T5937]  ? __pfx_kthread+0x10/0x10
[  502.617513][ T5937]  ret_from_fork_asm+0x1a/0x30
[  502.617544][ T5937]  </TASK>
[  502.617550][ T5937] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  502.647600][ T5997] loop0: writeback error on inode 9394, offset 4096000, sector 26856
[  502.656174][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  503.168263][ T7302] loop0: detected capacity change from 0 to 32768
[  503.187774][ T7302] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  503.199205][ T7302] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  503.233974][ T7302] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  503.244666][ T5997] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  503.254841][ T5997] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  503.309553][ T5997] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 54ms
[  503.317428][ T5997] gfs2: fsid=syz:syz.0: jid=0: Done
[  503.322802][ T7302] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  503.560340][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  503.583286][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  503.583311][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  503.583322][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  503.583349][    T9] Call Trace:
[  503.583355][    T9]  <TASK>
[  503.583364][    T9]  dump_stack_lvl+0xe8/0x150
[  503.583389][    T9]  gfs2_withdraw+0xc3/0x1b0
[  503.583409][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  503.583436][    T9]  inode_go_instantiate+0xea/0x1220
[  503.583457][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  503.583480][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  503.583501][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  503.583524][    T9]  gfs2_instantiate+0x168/0x220
[  503.583544][    T9]  gfs2_inode_lookup+0x727/0xc50
[  503.583571][    T9]  ? ktime_get+0x45/0x220
[  503.583597][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  503.583614][    T9]  ? clockevents_program_event+0x3ba/0x4b0
[  503.583636][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  503.583668][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  503.583690][    T9]  delete_work_func+0x311/0x4d0
[  503.583713][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  503.583738][    T9]  ? lock_acquire+0x20b/0x2e0
[  503.583764][    T9]  ? process_one_work+0x8bb/0x1780
[  503.583786][    T9]  process_one_work+0x9ab/0x1780
[  503.583827][    T9]  ? __pfx_process_one_work+0x10/0x10
[  503.583845][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  503.583880][    T9]  worker_thread+0xba8/0x11e0
[  503.583919][    T9]  kthread+0x388/0x470
[  503.583941][    T9]  ? __pfx_worker_thread+0x10/0x10
[  503.583955][    T9]  ? __pfx_kthread+0x10/0x10
[  503.583975][    T9]  ret_from_fork+0x51e/0xb90
[  503.583999][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  503.584018][    T9]  ? __switch_to+0xc7d/0x1450
[  503.584042][    T9]  ? __pfx_kthread+0x10/0x10
[  503.584060][    T9]  ret_from_fork_asm+0x1a/0x30
[  503.584091][    T9]  </TASK>
[  503.584109][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  503.645066][ T5997] loop0: writeback error on inode 9394, offset 2048000, sector 22824
[  503.659047][ T7300] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  504.108598][ T7309] loop0: detected capacity change from 0 to 32768
[  504.123139][ T7309] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  504.138152][ T7309] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  504.169748][ T7309] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  504.179590][ T7300] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  504.187138][ T7300] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  504.260410][ T7300] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 73ms
[  504.268128][ T7300] gfs2: fsid=syz:syz.0: jid=0: Done
[  504.273676][ T7309] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  504.515767][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  504.532517][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  504.549229][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  504.549252][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  504.549262][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  504.549287][  T809] Call Trace:
[  504.549293][  T809]  <TASK>
[  504.549301][  T809]  dump_stack_lvl+0xe8/0x150
[  504.549324][  T809]  gfs2_withdraw+0xc3/0x1b0
[  504.549342][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  504.549365][  T809]  inode_go_instantiate+0xea/0x1220
[  504.549383][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  504.549405][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  504.549426][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  504.549449][  T809]  gfs2_instantiate+0x168/0x220
[  504.549469][  T809]  gfs2_inode_lookup+0x727/0xc50
[  504.549501][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  504.549525][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  504.549543][  T809]  ? trace_hrtimer_start+0x82/0x230
[  504.549565][  T809]  ? __lock_acquire+0x6b5/0x2cf0
[  504.549595][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  504.549616][  T809]  delete_work_func+0x311/0x4d0
[  504.549635][  T809]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  504.549657][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  504.549689][  T809]  ? process_one_work+0x8bb/0x1780
[  504.549711][  T809]  process_one_work+0x9ab/0x1780
[  504.549754][  T809]  ? __pfx_process_one_work+0x10/0x10
[  504.549773][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  504.549807][  T809]  worker_thread+0xba8/0x11e0
[  504.549832][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  504.549852][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  504.549868][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  504.549890][  T809]  kthread+0x388/0x470
[  504.549909][  T809]  ? __pfx_worker_thread+0x10/0x10
[  504.549922][  T809]  ? __pfx_kthread+0x10/0x10
[  504.549942][  T809]  ret_from_fork+0x51e/0xb90
[  504.549974][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  504.549993][  T809]  ? __switch_to+0xc7d/0x1450
[  504.550018][  T809]  ? __pfx_kthread+0x10/0x10
[  504.550038][  T809]  ret_from_fork_asm+0x1a/0x30
[  504.550070][  T809]  </TASK>
[  504.550089][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  504.763190][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  504.770100][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  504.802028][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  509.815773][ T5851] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  510.138363][ T7317] loop0: detected capacity change from 0 to 32768
[  510.153351][ T7317] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  510.167544][ T7317] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  510.194295][ T7317] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  510.204886][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  510.218101][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  510.282902][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 64ms
[  510.290782][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  510.296170][ T7317] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  510.543486][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  510.559655][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  510.575461][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  510.593303][ T6488] CPU: 0 UID: 0 PID: 6488 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
[  510.593329][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  510.593340][ T6488] Workqueue: gfs2-delete/syz:syz delete_work_func
[  510.593366][ T6488] Call Trace:
[  510.593373][ T6488]  <TASK>
[  510.593380][ T6488]  dump_stack_lvl+0xe8/0x150
[  510.593407][ T6488]  gfs2_withdraw+0xc3/0x1b0
[  510.593426][ T6488]  gfs2_meta_buffer+0x225/0x2e0
[  510.593454][ T6488]  inode_go_instantiate+0xea/0x1220
[  510.593475][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  510.593497][ T6488]  ? __pfx_inode_go_instantiate+0x10/0x10
[  510.593527][ T6488]  ? do_raw_spin_unlock+0xf5/0x210
[  510.593549][ T6488]  gfs2_instantiate+0x168/0x220
[  510.593570][ T6488]  gfs2_inode_lookup+0x727/0xc50
[  510.593597][ T6488]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  510.593622][ T6488]  ? gfs2_lookup_by_inum+0x52/0x100
[  510.593639][ T6488]  ? trace_hrtimer_start+0x82/0x230
[  510.593661][ T6488]  ? __lock_acquire+0x6b5/0x2cf0
[  510.593690][ T6488]  gfs2_lookup_by_inum+0x52/0x100
[  510.593712][ T6488]  delete_work_func+0x311/0x4d0
[  510.593730][ T6488]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  510.593752][ T6488]  ? __pfx_delete_work_func+0x10/0x10
[  510.593784][ T6488]  ? process_one_work+0x8bb/0x1780
[  510.593805][ T6488]  process_one_work+0x9ab/0x1780
[  510.593846][ T6488]  ? __pfx_process_one_work+0x10/0x10
[  510.593865][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  510.593899][ T6488]  worker_thread+0xba8/0x11e0
[  510.593924][ T6488]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  510.593944][ T6488]  ? __kthread_parkme+0x7a/0x1f0
[  510.593960][ T6488]  ? __kthread_parkme+0x19c/0x1f0
[  510.593983][ T6488]  kthread+0x388/0x470
[  510.594000][ T6488]  ? __pfx_worker_thread+0x10/0x10
[  510.594013][ T6488]  ? __pfx_kthread+0x10/0x10
[  510.594031][ T6488]  ret_from_fork+0x51e/0xb90
[  510.594054][ T6488]  ? __pfx_ret_from_fork+0x10/0x10
[  510.594072][ T6488]  ? __switch_to+0xc7d/0x1450
[  510.594095][ T6488]  ? __pfx_kthread+0x10/0x10
[  510.594115][ T6488]  ret_from_fork_asm+0x1a/0x30
[  510.594145][ T6488]  </TASK>
[  510.594151][ T6488] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  510.808060][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  510.814969][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  510.847435][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  515.814142][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  516.140834][ T7327] loop0: detected capacity change from 0 to 32768
[  516.162585][ T7327] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  516.170821][ T7327] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  516.204880][ T7327] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  516.215857][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  516.223194][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  516.270145][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 46ms
[  516.277723][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  516.283361][ T7327] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  516.526976][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  516.553610][ T5932] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  516.569960][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  516.585459][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  516.601600][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  516.601623][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  516.601634][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  516.601660][  T809] Call Trace:
[  516.601667][  T809]  <TASK>
[  516.601674][  T809]  dump_stack_lvl+0xe8/0x150
[  516.601701][  T809]  gfs2_withdraw+0xc3/0x1b0
[  516.601721][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  516.601749][  T809]  inode_go_instantiate+0xea/0x1220
[  516.601769][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  516.601791][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  516.601811][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  516.601834][  T809]  gfs2_instantiate+0x168/0x220
[  516.601855][  T809]  gfs2_inode_lookup+0x727/0xc50
[  516.601883][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  516.601902][  T809]  ? check_path+0x21/0x40
[  516.601921][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  516.601938][  T809]  ? add_lock_to_list+0xc7/0x100
[  516.601957][  T809]  ? lockdep_unlock+0x5d/0xd0
[  516.601976][  T809]  ? __lock_acquire+0x146e/0x2cf0
[  516.602004][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  516.602025][  T809]  delete_work_func+0x311/0x4d0
[  516.602049][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  516.602074][  T809]  ? lock_acquire+0x20b/0x2e0
[  516.602100][  T809]  ? process_one_work+0x8bb/0x1780
[  516.602120][  T809]  process_one_work+0x9ab/0x1780
[  516.602160][  T809]  ? __pfx_process_one_work+0x10/0x10
[  516.602178][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  516.602210][  T809]  worker_thread+0xba8/0x11e0
[  516.602239][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  516.602258][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  516.602275][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  516.602297][  T809]  kthread+0x388/0x470
[  516.602315][  T809]  ? __pfx_worker_thread+0x10/0x10
[  516.602329][  T809]  ? __pfx_kthread+0x10/0x10
[  516.602348][  T809]  ret_from_fork+0x51e/0xb90
[  516.602372][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  516.602391][  T809]  ? __switch_to+0xc7d/0x1450
[  516.602414][  T809]  ? __pfx_kthread+0x10/0x10
[  516.602433][  T809]  ret_from_fork_asm+0x1a/0x30
[  516.602463][  T809]  </TASK>
[  516.602470][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  516.619821][    T9] loop0: writeback error on inode 9394, offset 4864000, sector 28368
[  516.634049][ T5851] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  517.149962][ T7334] loop0: detected capacity change from 0 to 32768
[  517.166314][ T7334] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  517.181617][ T7334] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  517.222126][ T7334] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  517.234361][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  517.246792][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  517.324047][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 77ms
[  517.331623][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  517.337256][ T7334] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  517.580689][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  517.597569][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  517.614123][ T7300] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  517.630607][ T5937] CPU: 0 UID: 0 PID: 5937 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  517.630629][ T5937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  517.630639][ T5937] Workqueue: gfs2-delete/syz:syz delete_work_func
[  517.630666][ T5937] Call Trace:
[  517.630672][ T5937]  <TASK>
[  517.630679][ T5937]  dump_stack_lvl+0xe8/0x150
[  517.630704][ T5937]  gfs2_withdraw+0xc3/0x1b0
[  517.630738][ T5937]  gfs2_meta_buffer+0x225/0x2e0
[  517.630764][ T5937]  inode_go_instantiate+0xea/0x1220
[  517.630780][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  517.630801][ T5937]  ? __pfx_inode_go_instantiate+0x10/0x10
[  517.630822][ T5937]  ? do_raw_spin_unlock+0xf5/0x210
[  517.630845][ T5937]  gfs2_instantiate+0x168/0x220
[  517.630867][ T5937]  gfs2_inode_lookup+0x727/0xc50
[  517.630893][ T5937]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  517.630917][ T5937]  ? gfs2_lookup_by_inum+0x52/0x100
[  517.630934][ T5937]  ? trace_hrtimer_start+0x82/0x230
[  517.630956][ T5937]  ? __lock_acquire+0x6b5/0x2cf0
[  517.630985][ T5937]  gfs2_lookup_by_inum+0x52/0x100
[  517.631007][ T5937]  delete_work_func+0x311/0x4d0
[  517.631025][ T5937]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  517.631048][ T5937]  ? __pfx_delete_work_func+0x10/0x10
[  517.631080][ T5937]  ? process_one_work+0x8bb/0x1780
[  517.631108][ T5937]  process_one_work+0x9ab/0x1780
[  517.631150][ T5937]  ? __pfx_process_one_work+0x10/0x10
[  517.631273][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  517.631318][ T5937]  worker_thread+0xba8/0x11e0
[  517.631349][ T5937]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  517.631370][ T5937]  ? __kthread_parkme+0x7a/0x1f0
[  517.631387][ T5937]  ? __kthread_parkme+0x19c/0x1f0
[  517.631410][ T5937]  kthread+0x388/0x470
[  517.631429][ T5937]  ? __pfx_worker_thread+0x10/0x10
[  517.631442][ T5937]  ? __pfx_kthread+0x10/0x10
[  517.631462][ T5937]  ret_from_fork+0x51e/0xb90
[  517.631488][ T5937]  ? __pfx_ret_from_fork+0x10/0x10
[  517.631509][ T5937]  ? __switch_to+0xc7d/0x1450
[  517.631533][ T5937]  ? __pfx_kthread+0x10/0x10
[  517.631554][ T5937]  ret_from_fork_asm+0x1a/0x30
[  517.631584][ T5937]  </TASK>
[  517.840172][ T5937] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  517.848068][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  517.854493][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  517.885705][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  522.853928][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  523.173200][ T7342] loop0: detected capacity change from 0 to 32768
[  523.195665][ T7342] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  523.210001][ T7342] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  523.243428][ T7342] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  523.253083][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  523.260050][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  523.322024][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 61ms
[  523.330779][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  523.336134][ T7342] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  523.582935][ T5932] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  523.600206][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  523.616339][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  523.635021][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  523.650679][ T5932] CPU: 1 UID: 0 PID: 5932 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  523.650704][ T5932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  523.650715][ T5932] Workqueue: gfs2-delete/syz:syz delete_work_func
[  523.650743][ T5932] Call Trace:
[  523.650750][ T5932]  <TASK>
[  523.650758][ T5932]  dump_stack_lvl+0xe8/0x150
[  523.650784][ T5932]  gfs2_withdraw+0xc3/0x1b0
[  523.650804][ T5932]  gfs2_meta_buffer+0x225/0x2e0
[  523.650833][ T5932]  inode_go_instantiate+0xea/0x1220
[  523.650854][ T5932]  ? do_raw_spin_lock+0x12b/0x2f0
[  523.650877][ T5932]  ? __pfx_inode_go_instantiate+0x10/0x10
[  523.650898][ T5932]  ? do_raw_spin_unlock+0xf5/0x210
[  523.650922][ T5932]  gfs2_instantiate+0x168/0x220
[  523.650944][ T5932]  gfs2_inode_lookup+0x727/0xc50
[  523.650972][ T5932]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  523.650997][ T5932]  ? gfs2_lookup_by_inum+0x52/0x100
[  523.651016][ T5932]  ? trace_hrtimer_start+0x82/0x230
[  523.651039][ T5932]  ? __lock_acquire+0x6b5/0x2cf0
[  523.651075][ T5932]  gfs2_lookup_by_inum+0x52/0x100
[  523.651098][ T5932]  delete_work_func+0x311/0x4d0
[  523.651116][ T5932]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  523.651140][ T5932]  ? __pfx_delete_work_func+0x10/0x10
[  523.651175][ T5932]  ? process_one_work+0x8bb/0x1780
[  523.651195][ T5932]  process_one_work+0x9ab/0x1780
[  523.651237][ T5932]  ? __pfx_process_one_work+0x10/0x10
[  523.651258][ T5932]  ? do_raw_spin_lock+0x12b/0x2f0
[  523.651293][ T5932]  worker_thread+0xba8/0x11e0
[  523.651318][ T5932]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  523.651340][ T5932]  ? __kthread_parkme+0x7a/0x1f0
[  523.651357][ T5932]  ? __kthread_parkme+0x19c/0x1f0
[  523.651379][ T5932]  kthread+0x388/0x470
[  523.651398][ T5932]  ? __pfx_worker_thread+0x10/0x10
[  523.651413][ T5932]  ? __pfx_kthread+0x10/0x10
[  523.651433][ T5932]  ret_from_fork+0x51e/0xb90
[  523.651457][ T5932]  ? __pfx_ret_from_fork+0x10/0x10
[  523.651477][ T5932]  ? __switch_to+0xc7d/0x1450
[  523.651500][ T5932]  ? __pfx_kthread+0x10/0x10
[  523.651519][ T5932]  ret_from_fork_asm+0x1a/0x30
[  523.651549][ T5932]  </TASK>
[  523.870673][   T24] loop0: writeback error on inode 9394, offset 4096000, sector 26856
[  523.875251][ T5932] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  523.891577][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  523.897424][  T809] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  524.263018][ T7350] loop0: detected capacity change from 0 to 32768
[  524.287004][ T7350] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  524.295549][ T7350] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  524.324472][ T7350] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  524.334978][ T5937] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  524.343480][ T5937] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  524.417263][ T5937] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 73ms
[  524.425120][ T5937] gfs2: fsid=syz:syz.0: jid=0: Done
[  524.431810][ T7350] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  524.686910][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  524.703212][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  524.720175][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  524.735932][ T5851] CPU: 1 UID: 0 PID: 5851 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  524.735957][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  524.735968][ T5851] Workqueue: gfs2-delete/syz:syz delete_work_func
[  524.735995][ T5851] Call Trace:
[  524.736003][ T5851]  <TASK>
[  524.736011][ T5851]  dump_stack_lvl+0xe8/0x150
[  524.736038][ T5851]  gfs2_withdraw+0xc3/0x1b0
[  524.736068][ T5851]  gfs2_meta_buffer+0x225/0x2e0
[  524.736097][ T5851]  inode_go_instantiate+0xea/0x1220
[  524.736118][ T5851]  ? do_raw_spin_lock+0x12b/0x2f0
[  524.736141][ T5851]  ? __pfx_inode_go_instantiate+0x10/0x10
[  524.736163][ T5851]  ? do_raw_spin_unlock+0xf5/0x210
[  524.736187][ T5851]  gfs2_instantiate+0x168/0x220
[  524.736209][ T5851]  gfs2_inode_lookup+0x727/0xc50
[  524.736237][ T5851]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  524.736262][ T5851]  ? gfs2_lookup_by_inum+0x52/0x100
[  524.736280][ T5851]  ? trace_hrtimer_start+0x82/0x230
[  524.736303][ T5851]  ? __lock_acquire+0x6b5/0x2cf0
[  524.736331][ T5851]  gfs2_lookup_by_inum+0x52/0x100
[  524.736352][ T5851]  delete_work_func+0x311/0x4d0
[  524.736371][ T5851]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  524.736394][ T5851]  ? __pfx_delete_work_func+0x10/0x10
[  524.736425][ T5851]  ? process_one_work+0x8bb/0x1780
[  524.736446][ T5851]  process_one_work+0x9ab/0x1780
[  524.736489][ T5851]  ? __pfx_process_one_work+0x10/0x10
[  524.736509][ T5851]  ? do_raw_spin_lock+0x12b/0x2f0
[  524.736543][ T5851]  worker_thread+0xba8/0x11e0
[  524.736568][ T5851]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  524.736589][ T5851]  ? __kthread_parkme+0x7a/0x1f0
[  524.736605][ T5851]  ? __kthread_parkme+0x19c/0x1f0
[  524.736625][ T5851]  kthread+0x388/0x470
[  524.736644][ T5851]  ? __pfx_worker_thread+0x10/0x10
[  524.736658][ T5851]  ? __pfx_kthread+0x10/0x10
[  524.736678][ T5851]  ret_from_fork+0x51e/0xb90
[  524.736703][ T5851]  ? __pfx_ret_from_fork+0x10/0x10
[  524.736723][ T5851]  ? __switch_to+0xc7d/0x1450
[  524.736748][ T5851]  ? __pfx_kthread+0x10/0x10
[  524.736767][ T5851]  ret_from_fork_asm+0x1a/0x30
[  524.736799][ T5851]  </TASK>
[  524.736806][ T5851] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  524.771646][ T5937] loop0: writeback error on inode 9394, offset 3840000, sector 26352
[  524.784973][ T5932] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  525.306741][ T7357] loop0: detected capacity change from 0 to 32768
[  525.321481][ T7357] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  525.329921][ T7357] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  525.363262][ T7357] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  525.374368][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  525.381409][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  525.451705][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 70ms
[  525.460351][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  525.465760][ T7357] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  525.704206][ T5932] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  525.722951][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  525.739113][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  525.755005][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  525.755028][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  525.755040][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  525.755066][  T809] Call Trace:
[  525.755073][  T809]  <TASK>
[  525.755082][  T809]  dump_stack_lvl+0xe8/0x150
[  525.755108][  T809]  gfs2_withdraw+0xc3/0x1b0
[  525.755129][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  525.755156][  T809]  inode_go_instantiate+0xea/0x1220
[  525.755178][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  525.755201][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  525.755222][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  525.755246][  T809]  gfs2_instantiate+0x168/0x220
[  525.755267][  T809]  gfs2_inode_lookup+0x727/0xc50
[  525.755294][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  525.755319][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  525.755338][  T809]  ? trace_hrtimer_start+0x82/0x230
[  525.755360][  T809]  ? __lock_acquire+0x6b5/0x2cf0
[  525.755390][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  525.755413][  T809]  delete_work_func+0x311/0x4d0
[  525.755431][  T809]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  525.755453][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  525.755487][  T809]  ? process_one_work+0x8bb/0x1780
[  525.755508][  T809]  process_one_work+0x9ab/0x1780
[  525.755547][  T809]  ? __pfx_process_one_work+0x10/0x10
[  525.755564][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  525.755595][  T809]  worker_thread+0xba8/0x11e0
[  525.755617][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  525.755637][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  525.755654][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  525.755673][  T809]  kthread+0x388/0x470
[  525.755691][  T809]  ? __pfx_worker_thread+0x10/0x10
[  525.755704][  T809]  ? __pfx_kthread+0x10/0x10
[  525.755723][  T809]  ret_from_fork+0x51e/0xb90
[  525.755746][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  525.755764][  T809]  ? __switch_to+0xc7d/0x1450
[  525.755785][  T809]  ? __pfx_kthread+0x10/0x10
[  525.755804][  T809]  ret_from_fork_asm+0x1a/0x30
[  525.755833][  T809]  </TASK>
[  525.755840][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  525.967371][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  525.974237][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  526.005993][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  531.014757][ T5932] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  531.335985][ T7365] loop0: detected capacity change from 0 to 32768
[  531.351275][ T7365] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  531.361910][ T7365] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  531.397789][ T7365] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  531.419123][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  531.427340][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  531.490858][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 63ms
[  531.499265][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  531.504753][ T7365] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  531.749060][ T7300] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  531.765114][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  531.781911][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  531.799079][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  531.816591][ T7300] CPU: 0 UID: 0 PID: 7300 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
[  531.816617][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  531.816628][ T7300] Workqueue: gfs2-delete/syz:syz delete_work_func
[  531.816656][ T7300] Call Trace:
[  531.816664][ T7300]  <TASK>
[  531.816672][ T7300]  dump_stack_lvl+0xe8/0x150
[  531.816700][ T7300]  gfs2_withdraw+0xc3/0x1b0
[  531.816721][ T7300]  gfs2_meta_buffer+0x225/0x2e0
[  531.816750][ T7300]  inode_go_instantiate+0xea/0x1220
[  531.816771][ T7300]  ? do_raw_spin_lock+0x12b/0x2f0
[  531.816795][ T7300]  ? __pfx_inode_go_instantiate+0x10/0x10
[  531.816817][ T7300]  ? do_raw_spin_unlock+0xf5/0x210
[  531.816840][ T7300]  gfs2_instantiate+0x168/0x220
[  531.816862][ T7300]  gfs2_inode_lookup+0x727/0xc50
[  531.816889][ T7300]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  531.816915][ T7300]  ? gfs2_lookup_by_inum+0x52/0x100
[  531.816934][ T7300]  ? trace_hrtimer_start+0x82/0x230
[  531.816957][ T7300]  ? __lock_acquire+0x6b5/0x2cf0
[  531.816987][ T7300]  gfs2_lookup_by_inum+0x52/0x100
[  531.817008][ T7300]  delete_work_func+0x311/0x4d0
[  531.817026][ T7300]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  531.817049][ T7300]  ? __pfx_delete_work_func+0x10/0x10
[  531.817086][ T7300]  ? process_one_work+0x8bb/0x1780
[  531.817108][ T7300]  process_one_work+0x9ab/0x1780
[  531.817148][ T7300]  ? __pfx_process_one_work+0x10/0x10
[  531.817168][ T7300]  ? do_raw_spin_lock+0x12b/0x2f0
[  531.817199][ T7300]  worker_thread+0xba8/0x11e0
[  531.817222][ T7300]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  531.817242][ T7300]  ? __kthread_parkme+0x7a/0x1f0
[  531.817256][ T7300]  ? __kthread_parkme+0x19c/0x1f0
[  531.817277][ T7300]  kthread+0x388/0x470
[  531.817295][ T7300]  ? __pfx_worker_thread+0x10/0x10
[  531.817309][ T7300]  ? __pfx_kthread+0x10/0x10
[  531.817328][ T7300]  ret_from_fork+0x51e/0xb90
[  531.817353][ T7300]  ? __pfx_ret_from_fork+0x10/0x10
[  531.817385][ T7300]  ? __switch_to+0xc7d/0x1450
[  531.817409][ T7300]  ? __pfx_kthread+0x10/0x10
[  531.817429][ T7300]  ret_from_fork_asm+0x1a/0x30
[  531.817461][ T7300]  </TASK>
[  531.817468][ T7300] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  531.847238][  T809] loop0: writeback error on inode 9394, offset 3328000, sector 25344
[  531.856476][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  532.367966][ T7373] loop0: detected capacity change from 0 to 32768
[  532.386520][ T7373] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  532.395193][ T7373] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  532.429315][ T7373] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  532.440728][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  532.449736][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  532.524926][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 75ms
[  532.533405][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  532.538841][ T7373] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  532.776099][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  532.800637][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  532.816840][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  532.832447][ T5932] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  532.848140][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  532.848164][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  532.848175][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  532.848202][  T809] Call Trace:
[  532.848209][  T809]  <TASK>
[  532.848216][  T809]  dump_stack_lvl+0xe8/0x150
[  532.848242][  T809]  gfs2_withdraw+0xc3/0x1b0
[  532.848263][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  532.848291][  T809]  inode_go_instantiate+0xea/0x1220
[  532.848313][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  532.848337][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  532.848358][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  532.848381][  T809]  gfs2_instantiate+0x168/0x220
[  532.848402][  T809]  gfs2_inode_lookup+0x727/0xc50
[  532.848430][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  532.848450][  T809]  ? check_path+0x21/0x40
[  532.848469][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  532.848487][  T809]  ? add_lock_to_list+0xc7/0x100
[  532.848506][  T809]  ? lockdep_unlock+0x5d/0xd0
[  532.848525][  T809]  ? __lock_acquire+0x146e/0x2cf0
[  532.848553][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  532.848575][  T809]  delete_work_func+0x311/0x4d0
[  532.848600][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  532.848625][  T809]  ? lock_acquire+0x20b/0x2e0
[  532.848652][  T809]  ? process_one_work+0x8bb/0x1780
[  532.848674][  T809]  process_one_work+0x9ab/0x1780
[  532.848716][  T809]  ? __pfx_process_one_work+0x10/0x10
[  532.848736][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  532.848769][  T809]  worker_thread+0xba8/0x11e0
[  532.848794][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  532.848815][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  532.848833][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  532.848856][  T809]  kthread+0x388/0x470
[  532.848875][  T809]  ? __pfx_worker_thread+0x10/0x10
[  532.848889][  T809]  ? __pfx_kthread+0x10/0x10
[  532.848909][  T809]  ret_from_fork+0x51e/0xb90
[  532.848935][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  532.848956][  T809]  ? __switch_to+0xc7d/0x1450
[  532.848980][  T809]  ? __pfx_kthread+0x10/0x10
[  532.849000][  T809]  ret_from_fork_asm+0x1a/0x30
[  532.849032][  T809]  </TASK>
[  532.849047][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  532.857436][  T808] loop0: writeback error on inode 9394, offset 5760000, sector 30132
[  532.878500][ T5997] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  533.391933][ T7380] loop0: detected capacity change from 0 to 32768
[  533.407287][ T7380] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  533.420548][ T7380] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  533.448638][ T7380] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  533.459755][ T5997] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  533.466987][ T5997] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  533.538047][ T5997] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 71ms
[  533.545766][ T5997] gfs2: fsid=syz:syz.0: jid=0: Done
[  533.552073][ T7380] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  533.778203][ T5932] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  533.793993][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  533.810669][ T5932] CPU: 1 UID: 0 PID: 5932 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  533.810692][ T5932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  533.810703][ T5932] Workqueue: gfs2-delete/syz:syz delete_work_func
[  533.810731][ T5932] Call Trace:
[  533.810738][ T5932]  <TASK>
[  533.810745][ T5932]  dump_stack_lvl+0xe8/0x150
[  533.810770][ T5932]  gfs2_withdraw+0xc3/0x1b0
[  533.810789][ T5932]  gfs2_meta_buffer+0x225/0x2e0
[  533.810826][ T5932]  inode_go_instantiate+0xea/0x1220
[  533.810847][ T5932]  ? do_raw_spin_lock+0x12b/0x2f0
[  533.810868][ T5932]  ? __pfx_inode_go_instantiate+0x10/0x10
[  533.810888][ T5932]  ? do_raw_spin_unlock+0xf5/0x210
[  533.810908][ T5932]  gfs2_instantiate+0x168/0x220
[  533.810924][ T5932]  gfs2_inode_lookup+0x727/0xc50
[  533.810940][ T5932]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  533.810954][ T5932]  ? gfs2_lookup_by_inum+0x52/0x100
[  533.810966][ T5932]  ? trace_hrtimer_start+0x82/0x230
[  533.810990][ T5932]  ? __lock_acquire+0x6b5/0x2cf0
[  533.811018][ T5932]  gfs2_lookup_by_inum+0x52/0x100
[  533.811032][ T5932]  delete_work_func+0x311/0x4d0
[  533.811043][ T5932]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  533.811057][ T5932]  ? __pfx_delete_work_func+0x10/0x10
[  533.811075][ T5932]  ? process_one_work+0x8bb/0x1780
[  533.811089][ T5932]  process_one_work+0x9ab/0x1780
[  533.811113][ T5932]  ? __pfx_process_one_work+0x10/0x10
[  533.811126][ T5932]  ? do_raw_spin_lock+0x12b/0x2f0
[  533.811146][ T5932]  worker_thread+0xba8/0x11e0
[  533.811167][ T5932]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  533.811185][ T5932]  ? __kthread_parkme+0x7a/0x1f0
[  533.811202][ T5932]  ? __kthread_parkme+0x19c/0x1f0
[  533.811222][ T5932]  kthread+0x388/0x470
[  533.811239][ T5932]  ? __pfx_worker_thread+0x10/0x10
[  533.811253][ T5932]  ? __pfx_kthread+0x10/0x10
[  533.811270][ T5932]  ret_from_fork+0x51e/0xb90
[  533.811295][ T5932]  ? __pfx_ret_from_fork+0x10/0x10
[  533.811315][ T5932]  ? __switch_to+0xc7d/0x1450
[  533.811337][ T5932]  ? __pfx_kthread+0x10/0x10
[  533.811357][ T5932]  ret_from_fork_asm+0x1a/0x30
[  533.811390][ T5932]  </TASK>
[  534.016232][ T5932] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  534.034589][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  534.062926][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  539.093943][ T5851] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  539.412471][ T7388] loop0: detected capacity change from 0 to 32768
[  539.431586][ T7388] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  539.443106][ T7388] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  539.476231][ T7388] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  539.486077][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  539.493415][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  539.564635][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 71ms
[  539.572352][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  539.577754][ T7388] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  539.818335][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  539.833916][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  539.849980][ T5997] CPU: 1 UID: 0 PID: 5997 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  539.850001][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  539.850010][ T5997] Workqueue: gfs2-delete/syz:syz delete_work_func
[  539.850034][ T5997] Call Trace:
[  539.850040][ T5997]  <TASK>
[  539.850048][ T5997]  dump_stack_lvl+0xe8/0x150
[  539.850071][ T5997]  gfs2_withdraw+0xc3/0x1b0
[  539.850090][ T5997]  gfs2_meta_buffer+0x225/0x2e0
[  539.850114][ T5997]  inode_go_instantiate+0xea/0x1220
[  539.850129][ T5997]  ? trace_irq_disable+0x3b/0x150
[  539.850156][ T5997]  ? __pfx_inode_go_instantiate+0x10/0x10
[  539.850181][ T5997]  gfs2_instantiate+0x168/0x220
[  539.850202][ T5997]  gfs2_inode_lookup+0x727/0xc50
[  539.850226][ T5997]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  539.850247][ T5997]  ? gfs2_lookup_by_inum+0x52/0x100
[  539.850262][ T5997]  ? trace_hrtimer_start+0x82/0x230
[  539.850275][ T5997]  ? __lock_acquire+0x6b5/0x2cf0
[  539.850325][ T5997]  gfs2_lookup_by_inum+0x52/0x100
[  539.850345][ T5997]  delete_work_func+0x311/0x4d0
[  539.850369][ T5997]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  539.850391][ T5997]  ? __pfx_delete_work_func+0x10/0x10
[  539.850421][ T5997]  ? process_one_work+0x8bb/0x1780
[  539.850441][ T5997]  process_one_work+0x9ab/0x1780
[  539.850473][ T5997]  ? __pfx_process_one_work+0x10/0x10
[  539.850493][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  539.850513][ T5997]  worker_thread+0xba8/0x11e0
[  539.850526][ T5997]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  539.850539][ T5997]  ? __kthread_parkme+0x7a/0x1f0
[  539.850549][ T5997]  ? __kthread_parkme+0x19c/0x1f0
[  539.850562][ T5997]  kthread+0x388/0x470
[  539.850574][ T5997]  ? __pfx_worker_thread+0x10/0x10
[  539.850582][ T5997]  ? __pfx_kthread+0x10/0x10
[  539.850594][ T5997]  ret_from_fork+0x51e/0xb90
[  539.850610][ T5997]  ? __pfx_ret_from_fork+0x10/0x10
[  539.850623][ T5997]  ? __switch_to+0xc7d/0x1450
[  539.850638][ T5997]  ? __pfx_kthread+0x10/0x10
[  539.850649][ T5997]  ret_from_fork_asm+0x1a/0x30
[  539.850667][ T5997]  </TASK>
[  539.850782][ T5997] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  540.063784][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  540.091427][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  545.094010][ T5932] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  545.416461][ T7398] loop0: detected capacity change from 0 to 32768
[  545.437317][ T7398] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  545.445982][ T7398] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  545.474735][ T7398] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  545.484091][ T5932] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  545.491086][ T5932] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  545.532367][ T5932] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 41ms
[  545.540631][ T5932] gfs2: fsid=syz:syz.0: jid=0: Done
[  545.546195][ T7398] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  545.792561][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  545.810046][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  545.825709][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  545.841333][   T24] CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 
[  545.841354][   T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  545.841364][   T24] Workqueue: gfs2-delete/syz:syz delete_work_func
[  545.841390][   T24] Call Trace:
[  545.841397][   T24]  <TASK>
[  545.841404][   T24]  dump_stack_lvl+0xe8/0x150
[  545.841432][   T24]  gfs2_withdraw+0xc3/0x1b0
[  545.841451][   T24]  gfs2_meta_buffer+0x225/0x2e0
[  545.841477][   T24]  inode_go_instantiate+0xea/0x1220
[  545.841497][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  545.841518][   T24]  ? __pfx_inode_go_instantiate+0x10/0x10
[  545.841539][   T24]  ? do_raw_spin_unlock+0xf5/0x210
[  545.841563][   T24]  gfs2_instantiate+0x168/0x220
[  545.841587][   T24]  gfs2_inode_lookup+0x727/0xc50
[  545.841603][   T24]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  545.841618][   T24]  ? gfs2_lookup_by_inum+0x52/0x100
[  545.841629][   T24]  ? trace_hrtimer_start+0x82/0x230
[  545.841643][   T24]  ? __lock_acquire+0x6b5/0x2cf0
[  545.841661][   T24]  gfs2_lookup_by_inum+0x52/0x100
[  545.841674][   T24]  delete_work_func+0x311/0x4d0
[  545.841685][   T24]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  545.841704][   T24]  ? __pfx_delete_work_func+0x10/0x10
[  545.841734][   T24]  ? process_one_work+0x8bb/0x1780
[  545.841755][   T24]  process_one_work+0x9ab/0x1780
[  545.841790][   T24]  ? __pfx_process_one_work+0x10/0x10
[  545.841808][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  545.841840][   T24]  worker_thread+0xba8/0x11e0
[  545.841875][   T24]  kthread+0x388/0x470
[  545.841895][   T24]  ? __pfx_worker_thread+0x10/0x10
[  545.841909][   T24]  ? __pfx_kthread+0x10/0x10
[  545.841926][   T24]  ret_from_fork+0x51e/0xb90
[  545.841949][   T24]  ? __pfx_ret_from_fork+0x10/0x10
[  545.841967][   T24]  ? __switch_to+0xc7d/0x1450
[  545.841989][   T24]  ? __pfx_kthread+0x10/0x10
[  545.842006][   T24]  ret_from_fork_asm+0x1a/0x30
[  545.842035][   T24]  </TASK>
[  545.842042][   T24] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  546.037317][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  546.043761][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  546.074950][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  551.094454][  T809] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  551.414048][ T7406] loop0: detected capacity change from 0 to 32768
[  551.425675][ T7406] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  551.435620][ T7406] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  551.470174][ T7406] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  551.483236][ T5937] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  551.490254][ T5937] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  551.544384][ T5937] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 54ms
[  551.552230][ T5937] gfs2: fsid=syz:syz.0: jid=0: Done
[  551.557765][ T7406] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  551.804053][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  551.820734][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  551.836590][ T7300] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  551.853331][ T6488] CPU: 0 UID: 0 PID: 6488 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
[  551.853354][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  551.853365][ T6488] Workqueue: gfs2-delete/syz:syz delete_work_func
[  551.853391][ T6488] Call Trace:
[  551.853398][ T6488]  <TASK>
[  551.853405][ T6488]  dump_stack_lvl+0xe8/0x150
[  551.853429][ T6488]  gfs2_withdraw+0xc3/0x1b0
[  551.853448][ T6488]  gfs2_meta_buffer+0x225/0x2e0
[  551.853472][ T6488]  inode_go_instantiate+0xea/0x1220
[  551.853490][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  551.853510][ T6488]  ? __pfx_inode_go_instantiate+0x10/0x10
[  551.853527][ T6488]  ? do_raw_spin_unlock+0xf5/0x210
[  551.853550][ T6488]  gfs2_instantiate+0x168/0x220
[  551.853571][ T6488]  gfs2_inode_lookup+0x727/0xc50
[  551.853597][ T6488]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  551.853623][ T6488]  ? gfs2_lookup_by_inum+0x52/0x100
[  551.853641][ T6488]  ? trace_hrtimer_start+0x82/0x230
[  551.853664][ T6488]  ? __lock_acquire+0x6b5/0x2cf0
[  551.853694][ T6488]  gfs2_lookup_by_inum+0x52/0x100
[  551.853716][ T6488]  delete_work_func+0x311/0x4d0
[  551.853735][ T6488]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  551.853758][ T6488]  ? __pfx_delete_work_func+0x10/0x10
[  551.853791][ T6488]  ? process_one_work+0x8bb/0x1780
[  551.853813][ T6488]  process_one_work+0x9ab/0x1780
[  551.853860][ T6488]  ? __pfx_process_one_work+0x10/0x10
[  551.853880][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  551.853915][ T6488]  worker_thread+0xba8/0x11e0
[  551.853939][ T6488]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  551.853960][ T6488]  ? __kthread_parkme+0x7a/0x1f0
[  551.853977][ T6488]  ? __kthread_parkme+0x19c/0x1f0
[  551.854007][ T6488]  kthread+0x388/0x470
[  551.854027][ T6488]  ? __pfx_worker_thread+0x10/0x10
[  551.854042][ T6488]  ? __pfx_kthread+0x10/0x10
[  551.854062][ T6488]  ret_from_fork+0x51e/0xb90
[  551.854088][ T6488]  ? __pfx_ret_from_fork+0x10/0x10
[  551.854107][ T6488]  ? __switch_to+0xc7d/0x1450
[  551.854128][ T6488]  ? __pfx_kthread+0x10/0x10
[  551.854147][ T6488]  ret_from_fork_asm+0x1a/0x30
[  551.854174][ T6488]  </TASK>
[  551.854191][ T6488] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  552.066946][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  552.073690][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  552.103926][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  557.094240][ T5937] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  557.445951][ T7419] loop0: detected capacity change from 0 to 32768
[  557.461236][ T7419] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  557.470788][ T7419] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  557.500465][ T7419] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  557.513726][   T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  557.520668][   T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  557.588696][   T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 68ms
[  557.596363][   T24] gfs2: fsid=syz:syz.0: jid=0: Done
[  557.601668][ T7419] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  557.849396][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  557.865699][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  557.881130][ T5851] CPU: 1 UID: 0 PID: 5851 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  557.881156][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  557.881167][ T5851] Workqueue: gfs2-delete/syz:syz delete_work_func
[  557.881192][ T5851] Call Trace:
[  557.881199][ T5851]  <TASK>
[  557.881213][ T5851]  dump_stack_lvl+0xe8/0x150
[  557.881240][ T5851]  gfs2_withdraw+0xc3/0x1b0
[  557.881259][ T5851]  gfs2_meta_buffer+0x225/0x2e0
[  557.881286][ T5851]  inode_go_instantiate+0xea/0x1220
[  557.881307][ T5851]  ? do_raw_spin_lock+0x12b/0x2f0
[  557.881325][ T5851]  ? __pfx_inode_go_instantiate+0x10/0x10
[  557.881342][ T5851]  ? do_raw_spin_unlock+0xf5/0x210
[  557.881360][ T5851]  gfs2_instantiate+0x168/0x220
[  557.881376][ T5851]  gfs2_inode_lookup+0x727/0xc50
[  557.881398][ T5851]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  557.881417][ T5851]  ? gfs2_lookup_by_inum+0x52/0x100
[  557.881430][ T5851]  ? trace_hrtimer_start+0x82/0x230
[  557.881448][ T5851]  ? __lock_acquire+0x6b5/0x2cf0
[  557.881471][ T5851]  gfs2_lookup_by_inum+0x52/0x100
[  557.881488][ T5851]  delete_work_func+0x311/0x4d0
[  557.881503][ T5851]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  557.881520][ T5851]  ? __pfx_delete_work_func+0x10/0x10
[  557.881544][ T5851]  ? process_one_work+0x8bb/0x1780
[  557.881562][ T5851]  process_one_work+0x9ab/0x1780
[  557.881594][ T5851]  ? __pfx_process_one_work+0x10/0x10
[  557.881610][ T5851]  ? do_raw_spin_lock+0x12b/0x2f0
[  557.881636][ T5851]  worker_thread+0xba8/0x11e0
[  557.881655][ T5851]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  557.881671][ T5851]  ? __kthread_parkme+0x7a/0x1f0
[  557.881684][ T5851]  ? __kthread_parkme+0x19c/0x1f0
[  557.881702][ T5851]  kthread+0x388/0x470
[  557.881717][ T5851]  ? __pfx_worker_thread+0x10/0x10
[  557.881728][ T5851]  ? __pfx_kthread+0x10/0x10
[  557.881743][ T5851]  ret_from_fork+0x51e/0xb90
[  557.881763][ T5851]  ? __pfx_ret_from_fork+0x10/0x10
[  557.881779][ T5851]  ? __switch_to+0xc7d/0x1450
[  557.881798][ T5851]  ? __pfx_kthread+0x10/0x10
[  557.881813][ T5851]  ret_from_fork_asm+0x1a/0x30
[  557.881837][ T5851]  </TASK>
[  558.089598][ T5851] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  558.099242][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  558.129142][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  563.015594][ T1313] ieee802154 phy0 wpan0: encryption failed: -22
[  563.022288][ T1313] ieee802154 phy1 wpan1: encryption failed: -22
[  563.173887][ T5932] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  563.488000][ T7430] loop0: detected capacity change from 0 to 32768
[  563.499743][ T7430] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  563.517748][ T7430] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  563.549436][ T7430] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  563.559200][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  563.567492][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  563.617735][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 50ms
[  563.626531][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  563.632331][ T7430] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  563.883527][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  563.901019][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  563.917374][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  563.933839][ T5997] CPU: 1 UID: 0 PID: 5997 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  563.933864][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  563.933873][ T5997] Workqueue: gfs2-delete/syz:syz delete_work_func
[  563.933896][ T5997] Call Trace:
[  563.933902][ T5997]  <TASK>
[  563.933909][ T5997]  dump_stack_lvl+0xe8/0x150
[  563.933931][ T5997]  gfs2_withdraw+0xc3/0x1b0
[  563.933947][ T5997]  gfs2_meta_buffer+0x225/0x2e0
[  563.933969][ T5997]  inode_go_instantiate+0xea/0x1220
[  563.933985][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  563.934007][ T5997]  ? __pfx_inode_go_instantiate+0x10/0x10
[  563.934024][ T5997]  ? do_raw_spin_unlock+0xf5/0x210
[  563.934042][ T5997]  gfs2_instantiate+0x168/0x220
[  563.934059][ T5997]  gfs2_inode_lookup+0x727/0xc50
[  563.934080][ T5997]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  563.934099][ T5997]  ? gfs2_lookup_by_inum+0x52/0x100
[  563.934113][ T5997]  ? trace_hrtimer_start+0x82/0x230
[  563.934130][ T5997]  ? __lock_acquire+0x6b5/0x2cf0
[  563.934153][ T5997]  gfs2_lookup_by_inum+0x52/0x100
[  563.934170][ T5997]  delete_work_func+0x311/0x4d0
[  563.934184][ T5997]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  563.934202][ T5997]  ? __pfx_delete_work_func+0x10/0x10
[  563.934229][ T5997]  ? process_one_work+0x8bb/0x1780
[  563.934247][ T5997]  process_one_work+0x9ab/0x1780
[  563.934280][ T5997]  ? __pfx_process_one_work+0x10/0x10
[  563.934296][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  563.934322][ T5997]  worker_thread+0xba8/0x11e0
[  563.934340][ T5997]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  563.934357][ T5997]  ? __kthread_parkme+0x7a/0x1f0
[  563.934370][ T5997]  ? __kthread_parkme+0x19c/0x1f0
[  563.934388][ T5997]  kthread+0x388/0x470
[  563.934402][ T5997]  ? __pfx_worker_thread+0x10/0x10
[  563.934414][ T5997]  ? __pfx_kthread+0x10/0x10
[  563.934429][ T5997]  ret_from_fork+0x51e/0xb90
[  563.934449][ T5997]  ? __pfx_ret_from_fork+0x10/0x10
[  563.934465][ T5997]  ? __switch_to+0xc7d/0x1450
[  563.934484][ T5997]  ? __pfx_kthread+0x10/0x10
[  563.934501][ T5997]  ret_from_fork_asm+0x1a/0x30
[  563.934526][ T5997]  </TASK>
[  563.934544][ T5997] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  564.143162][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  564.149312][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  564.179391][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  569.173933][ T5851] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  569.518444][ T7439] loop0: detected capacity change from 0 to 32768
[  569.533321][ T7439] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  569.553915][ T7439] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  569.586828][ T7439] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  569.599156][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  569.606061][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  569.669937][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 63ms
[  569.677708][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  569.683016][ T7439] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  569.933522][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  569.952501][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  569.967999][ T7300] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  569.983909][ T7300] CPU: 0 UID: 0 PID: 7300 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
[  569.983935][ T7300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  569.983946][ T7300] Workqueue: gfs2-delete/syz:syz delete_work_func
[  569.983973][ T7300] Call Trace:
[  569.983980][ T7300]  <TASK>
[  569.983988][ T7300]  dump_stack_lvl+0xe8/0x150
[  569.984016][ T7300]  gfs2_withdraw+0xc3/0x1b0
[  569.984036][ T7300]  gfs2_meta_buffer+0x225/0x2e0
[  569.984062][ T7300]  inode_go_instantiate+0xea/0x1220
[  569.984084][ T7300]  ? do_raw_spin_lock+0x12b/0x2f0
[  569.984107][ T7300]  ? __pfx_inode_go_instantiate+0x10/0x10
[  569.984128][ T7300]  ? do_raw_spin_unlock+0xf5/0x210
[  569.984150][ T7300]  gfs2_instantiate+0x168/0x220
[  569.984169][ T7300]  gfs2_inode_lookup+0x727/0xc50
[  569.984195][ T7300]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  569.984219][ T7300]  ? gfs2_lookup_by_inum+0x52/0x100
[  569.984238][ T7300]  ? trace_hrtimer_start+0x82/0x230
[  569.984260][ T7300]  ? __lock_acquire+0x6b5/0x2cf0
[  569.984289][ T7300]  gfs2_lookup_by_inum+0x52/0x100
[  569.984311][ T7300]  delete_work_func+0x311/0x4d0
[  569.984329][ T7300]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  569.984351][ T7300]  ? __pfx_delete_work_func+0x10/0x10
[  569.984381][ T7300]  ? process_one_work+0x8bb/0x1780
[  569.984403][ T7300]  process_one_work+0x9ab/0x1780
[  569.984443][ T7300]  ? __pfx_process_one_work+0x10/0x10
[  569.984463][ T7300]  ? do_raw_spin_lock+0x12b/0x2f0
[  569.984499][ T7300]  worker_thread+0xba8/0x11e0
[  569.984524][ T7300]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  569.984545][ T7300]  ? __kthread_parkme+0x7a/0x1f0
[  569.984563][ T7300]  ? __kthread_parkme+0x19c/0x1f0
[  569.984586][ T7300]  kthread+0x388/0x470
[  569.984605][ T7300]  ? __pfx_worker_thread+0x10/0x10
[  569.984620][ T7300]  ? __pfx_kthread+0x10/0x10
[  569.984640][ T7300]  ret_from_fork+0x51e/0xb90
[  569.984675][ T7300]  ? __pfx_ret_from_fork+0x10/0x10
[  569.984696][ T7300]  ? __switch_to+0xc7d/0x1450
[  569.984722][ T7300]  ? __pfx_kthread+0x10/0x10
[  569.984741][ T7300]  ret_from_fork_asm+0x1a/0x30
[  569.984772][ T7300]  </TASK>
[  569.984929][ T7300] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  570.029057][ T5851] loop0: writeback error on inode 9394, offset 4736000, sector 28116
[  570.037719][ T5937] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  570.557127][ T7447] loop0: detected capacity change from 0 to 32768
[  570.584227][ T7447] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  570.592658][ T7447] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  570.623229][ T7447] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  570.633919][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  570.640936][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  570.693666][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 52ms
[  570.702829][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  570.708275][ T7447] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  570.951574][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  570.968508][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  570.983997][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  571.000772][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  571.000793][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  571.000803][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  571.000831][    T9] Call Trace:
[  571.000837][    T9]  <TASK>
[  571.000846][    T9]  dump_stack_lvl+0xe8/0x150
[  571.000871][    T9]  gfs2_withdraw+0xc3/0x1b0
[  571.000890][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  571.000914][    T9]  inode_go_instantiate+0xea/0x1220
[  571.000934][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  571.000957][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  571.000976][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  571.000998][    T9]  gfs2_instantiate+0x168/0x220
[  571.001015][    T9]  gfs2_inode_lookup+0x727/0xc50
[  571.001036][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  571.001056][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  571.001069][    T9]  ? trace_hrtimer_start+0x82/0x230
[  571.001088][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  571.001112][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  571.001128][    T9]  delete_work_func+0x311/0x4d0
[  571.001145][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  571.001165][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  571.001194][    T9]  ? process_one_work+0x8bb/0x1780
[  571.001212][    T9]  process_one_work+0x9ab/0x1780
[  571.001244][    T9]  ? __pfx_process_one_work+0x10/0x10
[  571.001260][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  571.001287][    T9]  worker_thread+0xba8/0x11e0
[  571.001317][    T9]  kthread+0x388/0x470
[  571.001332][    T9]  ? __pfx_worker_thread+0x10/0x10
[  571.001343][    T9]  ? __pfx_kthread+0x10/0x10
[  571.001358][    T9]  ret_from_fork+0x51e/0xb90
[  571.001378][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  571.001394][    T9]  ? __switch_to+0xc7d/0x1450
[  571.001413][    T9]  ? __pfx_kthread+0x10/0x10
[  571.001428][    T9]  ret_from_fork_asm+0x1a/0x30
[  571.001452][    T9]  </TASK>
[  571.191244][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  571.199457][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  571.205705][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  571.237230][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  576.213833][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  576.534319][ T7456] loop0: detected capacity change from 0 to 32768
[  576.548080][ T7456] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  576.556859][ T7456] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  576.590519][ T7456] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  576.605901][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  576.613524][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  576.661389][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 47ms
[  576.669655][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  576.675097][ T7456] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  576.914646][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  576.931981][ T7300] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  576.935055][ T5997] CPU: 1 UID: 0 PID: 5997 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  576.935078][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  576.935090][ T5997] Workqueue: gfs2-delete/syz:syz delete_work_func
[  576.935118][ T5997] Call Trace:
[  576.935126][ T5997]  <TASK>
[  576.935134][ T5997]  dump_stack_lvl+0xe8/0x150
[  576.935161][ T5997]  gfs2_withdraw+0xc3/0x1b0
[  576.935182][ T5997]  gfs2_meta_buffer+0x225/0x2e0
[  576.935219][ T5997]  inode_go_instantiate+0xea/0x1220
[  576.935241][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  576.935265][ T5997]  ? __pfx_inode_go_instantiate+0x10/0x10
[  576.935286][ T5997]  ? do_raw_spin_unlock+0xf5/0x210
[  576.935310][ T5997]  gfs2_instantiate+0x168/0x220
[  576.935332][ T5997]  gfs2_inode_lookup+0x727/0xc50
[  576.935360][ T5997]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  576.935379][ T5997]  ? check_path+0x21/0x40
[  576.935399][ T5997]  ? gfs2_lookup_by_inum+0x52/0x100
[  576.935419][ T5997]  ? add_lock_to_list+0xc7/0x100
[  576.935438][ T5997]  ? lockdep_unlock+0x5d/0xd0
[  576.935458][ T5997]  ? __lock_acquire+0x146e/0x2cf0
[  576.935487][ T5997]  gfs2_lookup_by_inum+0x52/0x100
[  576.935509][ T5997]  delete_work_func+0x311/0x4d0
[  576.935534][ T5997]  ? __pfx_delete_work_func+0x10/0x10
[  576.935566][ T5997]  ? process_one_work+0x8bb/0x1780
[  576.935588][ T5997]  process_one_work+0x9ab/0x1780
[  576.935630][ T5997]  ? __pfx_process_one_work+0x10/0x10
[  576.935650][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  576.935684][ T5997]  worker_thread+0xba8/0x11e0
[  576.935708][ T5997]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  576.935729][ T5997]  ? __kthread_parkme+0x7a/0x1f0
[  576.935746][ T5997]  ? __kthread_parkme+0x19c/0x1f0
[  576.935769][ T5997]  kthread+0x388/0x470
[  576.935788][ T5997]  ? __pfx_worker_thread+0x10/0x10
[  576.935802][ T5997]  ? __pfx_kthread+0x10/0x10
[  576.935823][ T5997]  ret_from_fork+0x51e/0xb90
[  576.935847][ T5997]  ? __pfx_ret_from_fork+0x10/0x10
[  576.935868][ T5997]  ? __switch_to+0xc7d/0x1450
[  576.935892][ T5997]  ? __pfx_kthread+0x10/0x10
[  576.935912][ T5997]  ret_from_fork_asm+0x1a/0x30
[  576.935943][ T5997]  </TASK>
[  576.935951][ T5997] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  577.161555][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  577.198781][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  582.215255][ T5851] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  582.532146][ T7465] loop0: detected capacity change from 0 to 32768
[  582.554022][ T7465] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  582.562687][ T7465] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  582.603966][ T7465] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  582.613153][ T5851] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  582.620742][ T5851] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  582.667568][ T5851] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 46ms
[  582.675139][ T5851] gfs2: fsid=syz:syz.0: jid=0: Done
[  582.680455][ T7465] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  582.928168][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  582.948268][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  582.963876][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  582.980681][   T24] CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 
[  582.980704][   T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  582.980716][   T24] Workqueue: gfs2-delete/syz:syz delete_work_func
[  582.980743][   T24] Call Trace:
[  582.980750][   T24]  <TASK>
[  582.980758][   T24]  dump_stack_lvl+0xe8/0x150
[  582.980786][   T24]  gfs2_withdraw+0xc3/0x1b0
[  582.980806][   T24]  gfs2_meta_buffer+0x225/0x2e0
[  582.980834][   T24]  inode_go_instantiate+0xea/0x1220
[  582.980856][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  582.980879][   T24]  ? __pfx_inode_go_instantiate+0x10/0x10
[  582.980900][   T24]  ? do_raw_spin_unlock+0xf5/0x210
[  582.980924][   T24]  gfs2_instantiate+0x168/0x220
[  582.980945][   T24]  gfs2_inode_lookup+0x727/0xc50
[  582.980963][   T24]  ? seqcount_lockdep_reader_access+0xd4/0x100
[  582.980991][   T24]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  582.981015][   T24]  ? gfs2_lookup_by_inum+0x52/0x100
[  582.981032][   T24]  ? tick_program_event+0x8f/0x120
[  582.981055][   T24]  ? __lock_acquire+0x6b5/0x2cf0
[  582.981085][   T24]  gfs2_lookup_by_inum+0x52/0x100
[  582.981107][   T24]  delete_work_func+0x311/0x4d0
[  582.981129][   T24]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  582.981302][   T24]  ? __pfx_delete_work_func+0x10/0x10
[  582.981334][   T24]  ? process_one_work+0x8bb/0x1780
[  582.981356][   T24]  process_one_work+0x9ab/0x1780
[  582.981397][   T24]  ? __pfx_process_one_work+0x10/0x10
[  582.981416][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  582.981447][   T24]  worker_thread+0xba8/0x11e0
[  582.981485][   T24]  kthread+0x388/0x470
[  582.981505][   T24]  ? __pfx_worker_thread+0x10/0x10
[  582.981519][   T24]  ? __pfx_kthread+0x10/0x10
[  582.981539][   T24]  ret_from_fork+0x51e/0xb90
[  582.981564][   T24]  ? __pfx_ret_from_fork+0x10/0x10
[  582.981583][   T24]  ? __switch_to+0xc7d/0x1450
[  582.981606][   T24]  ? __pfx_kthread+0x10/0x10
[  582.981626][   T24]  ret_from_fork_asm+0x1a/0x30
[  582.981653][   T24]  </TASK>
[  583.175919][   T24] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  583.195305][ T7300] loop0: writeback error on inode 9394, offset 3456000, sector 25596
[  583.197240][ T7470] gfs2: fsid=syz:syz.0: GFS2:adding buf while withdrawn! 0x3fc5
[  583.213359][ T7470] gfs2: fsid=syz:syz.0: gfs2_create_inode: -5
[  583.230533][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  583.270679][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  588.293876][  T809] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  588.619607][ T7474] loop0: detected capacity change from 0 to 32768
[  588.638833][ T7474] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  588.652566][ T7474] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  588.694402][ T7474] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  588.704352][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  588.711631][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  588.769428][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 57ms
[  588.777912][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  588.783497][ T7474] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  589.034722][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  589.050588][ T7300] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  589.066580][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  589.084967][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  589.100392][ T5937] CPU: 0 UID: 0 PID: 5937 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  589.100416][ T5937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  589.100426][ T5937] Workqueue: gfs2-delete/syz:syz delete_work_func
[  589.100451][ T5937] Call Trace:
[  589.100457][ T5937]  <TASK>
[  589.100464][ T5937]  dump_stack_lvl+0xe8/0x150
[  589.100485][ T5937]  gfs2_withdraw+0xc3/0x1b0
[  589.100502][ T5937]  gfs2_meta_buffer+0x225/0x2e0
[  589.100523][ T5937]  inode_go_instantiate+0xea/0x1220
[  589.100540][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  589.100558][ T5937]  ? __pfx_inode_go_instantiate+0x10/0x10
[  589.100575][ T5937]  ? do_raw_spin_unlock+0xf5/0x210
[  589.100593][ T5937]  gfs2_instantiate+0x168/0x220
[  589.100610][ T5937]  gfs2_inode_lookup+0x727/0xc50
[  589.100631][ T5937]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  589.100650][ T5937]  ? gfs2_lookup_by_inum+0x52/0x100
[  589.100665][ T5937]  ? trace_hrtimer_start+0x82/0x230
[  589.100683][ T5937]  ? __lock_acquire+0x6b5/0x2cf0
[  589.100706][ T5937]  gfs2_lookup_by_inum+0x52/0x100
[  589.100723][ T5937]  delete_work_func+0x311/0x4d0
[  589.100737][ T5937]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  589.100755][ T5937]  ? __pfx_delete_work_func+0x10/0x10
[  589.100780][ T5937]  ? process_one_work+0x8bb/0x1780
[  589.100797][ T5937]  process_one_work+0x9ab/0x1780
[  589.100830][ T5937]  ? __pfx_process_one_work+0x10/0x10
[  589.100845][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  589.100872][ T5937]  worker_thread+0xba8/0x11e0
[  589.100892][ T5937]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  589.100909][ T5937]  ? __kthread_parkme+0x7a/0x1f0
[  589.100922][ T5937]  ? __kthread_parkme+0x19c/0x1f0
[  589.100940][ T5937]  kthread+0x388/0x470
[  589.100954][ T5937]  ? __pfx_worker_thread+0x10/0x10
[  589.100966][ T5937]  ? __pfx_kthread+0x10/0x10
[  589.100981][ T5937]  ret_from_fork+0x51e/0xb90
[  589.101002][ T5937]  ? __pfx_ret_from_fork+0x10/0x10
[  589.101018][ T5937]  ? __switch_to+0xc7d/0x1450
[  589.101038][ T5937]  ? __pfx_kthread+0x10/0x10
[  589.101058][ T5937]  ret_from_fork_asm+0x1a/0x30
[  589.101082][ T5937]  </TASK>
[  589.101092][ T5937] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  589.137022][   T24] loop0: writeback error on inode 9394, offset 4992000, sector 28620
[  589.152756][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  589.658111][ T7481] loop0: detected capacity change from 0 to 32768
[  589.678765][ T7481] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  589.690738][ T7481] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  589.727400][ T7481] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  589.737793][   T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  589.746954][   T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  589.804482][   T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 57ms
[  589.813140][   T24] gfs2: fsid=syz:syz.0: jid=0: Done
[  589.818788][ T7481] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  590.070127][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  590.088513][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  590.088538][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  590.088549][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  590.088575][  T808] Call Trace:
[  590.088582][  T808]  <TASK>
[  590.088590][  T808]  dump_stack_lvl+0xe8/0x150
[  590.088616][  T808]  gfs2_withdraw+0xc3/0x1b0
[  590.088636][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  590.088672][  T808]  inode_go_instantiate+0xea/0x1220
[  590.088693][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  590.088716][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  590.088737][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  590.088760][  T808]  gfs2_instantiate+0x168/0x220
[  590.088781][  T808]  gfs2_inode_lookup+0x727/0xc50
[  590.088810][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  590.088830][  T808]  ? check_path+0x21/0x40
[  590.088850][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  590.088868][  T808]  ? add_lock_to_list+0xc7/0x100
[  590.088890][  T808]  ? lockdep_unlock+0x5d/0xd0
[  590.088910][  T808]  ? __lock_acquire+0x146e/0x2cf0
[  590.088939][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  590.088961][  T808]  delete_work_func+0x311/0x4d0
[  590.088987][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  590.089020][  T808]  ? process_one_work+0x8bb/0x1780
[  590.089042][  T808]  process_one_work+0x9ab/0x1780
[  590.089084][  T808]  ? __pfx_process_one_work+0x10/0x10
[  590.089104][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  590.089138][  T808]  worker_thread+0xba8/0x11e0
[  590.089178][  T808]  kthread+0x388/0x470
[  590.089197][  T808]  ? __pfx_worker_thread+0x10/0x10
[  590.089211][  T808]  ? __pfx_kthread+0x10/0x10
[  590.089230][  T808]  ret_from_fork+0x51e/0xb90
[  590.089255][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  590.089274][  T808]  ? __switch_to+0xc7d/0x1450
[  590.089295][  T808]  ? __pfx_kthread+0x10/0x10
[  590.089314][  T808]  ret_from_fork_asm+0x1a/0x30
[  590.089347][  T808]  </TASK>
[  590.089487][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  590.136167][   T24] loop0: writeback error on inode 9394, offset 1792000, sector 22320
[  590.176223][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  590.618819][ T7488] loop0: detected capacity change from 0 to 32768
[  590.635417][ T7488] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  590.646030][ T7488] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  590.675304][ T7488] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  590.692291][   T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  590.699502][   T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  590.773138][   T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 73ms
[  590.780876][   T24] gfs2: fsid=syz:syz.0: jid=0: Done
[  590.786598][ T7488] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  591.017973][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  591.018881][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  591.035349][   T24] CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 
[  591.035373][   T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  591.035385][   T24] Workqueue: gfs2-delete/syz:syz delete_work_func
[  591.035411][   T24] Call Trace:
[  591.035421][   T24]  <TASK>
[  591.035429][   T24]  dump_stack_lvl+0xe8/0x150
[  591.035456][   T24]  gfs2_withdraw+0xc3/0x1b0
[  591.035477][   T24]  gfs2_meta_buffer+0x225/0x2e0
[  591.035503][   T24]  inode_go_instantiate+0xea/0x1220
[  591.035524][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  591.035547][   T24]  ? __pfx_inode_go_instantiate+0x10/0x10
[  591.035569][   T24]  ? do_raw_spin_unlock+0xf5/0x210
[  591.035592][   T24]  gfs2_instantiate+0x168/0x220
[  591.035612][   T24]  gfs2_inode_lookup+0x727/0xc50
[  591.035640][   T24]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  591.035664][   T24]  ? gfs2_lookup_by_inum+0x52/0x100
[  591.035682][   T24]  ? trace_hrtimer_start+0x82/0x230
[  591.035703][   T24]  ? __lock_acquire+0x6b5/0x2cf0
[  591.035731][   T24]  gfs2_lookup_by_inum+0x52/0x100
[  591.035753][   T24]  delete_work_func+0x311/0x4d0
[  591.035779][   T24]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  591.035802][   T24]  ? __pfx_delete_work_func+0x10/0x10
[  591.035833][   T24]  ? process_one_work+0x8bb/0x1780
[  591.035855][   T24]  process_one_work+0x9ab/0x1780
[  591.035897][   T24]  ? __pfx_process_one_work+0x10/0x10
[  591.035917][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  591.035952][   T24]  worker_thread+0xba8/0x11e0
[  591.035991][   T24]  kthread+0x388/0x470
[  591.036010][   T24]  ? __pfx_worker_thread+0x10/0x10
[  591.036023][   T24]  ? __pfx_kthread+0x10/0x10
[  591.036043][   T24]  ret_from_fork+0x51e/0xb90
[  591.036068][   T24]  ? __pfx_ret_from_fork+0x10/0x10
[  591.036088][   T24]  ? __switch_to+0xc7d/0x1450
[  591.036110][   T24]  ? __pfx_kthread+0x10/0x10
[  591.036129][   T24]  ret_from_fork_asm+0x1a/0x30
[  591.036160][   T24]  </TASK>
[  591.036167][   T24] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  591.243379][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  591.272114][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  596.293922][  T809] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  596.607102][ T7496] loop0: detected capacity change from 0 to 32768
[  596.622239][ T7496] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  596.630451][ T7496] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  596.676726][ T7496] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  596.688010][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  596.695930][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  596.760798][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 64ms
[  596.768555][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  596.774191][ T7496] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  597.019159][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  597.035624][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  597.051601][ T5937] CPU: 0 UID: 0 PID: 5937 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  597.051624][ T5937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  597.051635][ T5937] Workqueue: gfs2-delete/syz:syz delete_work_func
[  597.051661][ T5937] Call Trace:
[  597.051669][ T5937]  <TASK>
[  597.051677][ T5937]  dump_stack_lvl+0xe8/0x150
[  597.051703][ T5937]  gfs2_withdraw+0xc3/0x1b0
[  597.051723][ T5937]  gfs2_meta_buffer+0x225/0x2e0
[  597.051749][ T5937]  inode_go_instantiate+0xea/0x1220
[  597.051770][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  597.051788][ T5937]  ? __pfx_inode_go_instantiate+0x10/0x10
[  597.051800][ T5937]  ? do_raw_spin_unlock+0xf5/0x210
[  597.051814][ T5937]  gfs2_instantiate+0x168/0x220
[  597.051826][ T5937]  gfs2_inode_lookup+0x727/0xc50
[  597.051842][ T5937]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  597.051857][ T5937]  ? gfs2_lookup_by_inum+0x52/0x100
[  597.051868][ T5937]  ? trace_hrtimer_start+0x82/0x230
[  597.051882][ T5937]  ? __lock_acquire+0x6b5/0x2cf0
[  597.051900][ T5937]  gfs2_lookup_by_inum+0x52/0x100
[  597.051913][ T5937]  delete_work_func+0x311/0x4d0
[  597.051924][ T5937]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  597.051938][ T5937]  ? __pfx_delete_work_func+0x10/0x10
[  597.051956][ T5937]  ? process_one_work+0x8bb/0x1780
[  597.051970][ T5937]  process_one_work+0x9ab/0x1780
[  597.051994][ T5937]  ? __pfx_process_one_work+0x10/0x10
[  597.052007][ T5937]  ? do_raw_spin_lock+0x12b/0x2f0
[  597.052027][ T5937]  worker_thread+0xba8/0x11e0
[  597.052040][ T5937]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  597.052053][ T5937]  ? __kthread_parkme+0x7a/0x1f0
[  597.052063][ T5937]  ? __kthread_parkme+0x19c/0x1f0
[  597.052075][ T5937]  kthread+0x388/0x470
[  597.052087][ T5937]  ? __pfx_worker_thread+0x10/0x10
[  597.052100][ T5937]  ? __pfx_kthread+0x10/0x10
[  597.052112][ T5937]  ret_from_fork+0x51e/0xb90
[  597.052128][ T5937]  ? __pfx_ret_from_fork+0x10/0x10
[  597.052141][ T5937]  ? __switch_to+0xc7d/0x1450
[  597.052161][ T5937]  ? __pfx_kthread+0x10/0x10
[  597.052173][ T5937]  ret_from_fork_asm+0x1a/0x30
[  597.052191][ T5937]  </TASK>
[  597.052196][ T5937] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  597.278016][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  597.306185][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  602.293998][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  602.612444][ T7506] loop0: detected capacity change from 0 to 32768
[  602.627184][ T7506] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  602.635516][ T7506] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  602.667068][ T7506] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  602.678391][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  602.686521][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  602.759338][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 72ms
[  602.767358][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  602.772685][ T7506] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  603.018926][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  603.042236][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  603.057893][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  603.073669][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  603.091641][ T5997] CPU: 1 UID: 0 PID: 5997 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  603.091666][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  603.091677][ T5997] Workqueue: gfs2-delete/syz:syz delete_work_func
[  603.091703][ T5997] Call Trace:
[  603.091710][ T5997]  <TASK>
[  603.091720][ T5997]  dump_stack_lvl+0xe8/0x150
[  603.091746][ T5997]  gfs2_withdraw+0xc3/0x1b0
[  603.091766][ T5997]  gfs2_meta_buffer+0x225/0x2e0
[  603.091793][ T5997]  inode_go_instantiate+0xea/0x1220
[  603.091813][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  603.091836][ T5997]  ? __pfx_inode_go_instantiate+0x10/0x10
[  603.091857][ T5997]  ? do_raw_spin_unlock+0xf5/0x210
[  603.091880][ T5997]  gfs2_instantiate+0x168/0x220
[  603.091901][ T5997]  gfs2_inode_lookup+0x727/0xc50
[  603.091927][ T5997]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  603.091948][ T5997]  ? gfs2_lookup_by_inum+0x52/0x100
[  603.091965][ T5997]  ? trace_hrtimer_start+0x82/0x230
[  603.091985][ T5997]  ? __lock_acquire+0x6b5/0x2cf0
[  603.092014][ T5997]  gfs2_lookup_by_inum+0x52/0x100
[  603.092037][ T5997]  delete_work_func+0x311/0x4d0
[  603.092056][ T5997]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  603.092079][ T5997]  ? __pfx_delete_work_func+0x10/0x10
[  603.092111][ T5997]  ? process_one_work+0x8bb/0x1780
[  603.092131][ T5997]  process_one_work+0x9ab/0x1780
[  603.092173][ T5997]  ? __pfx_process_one_work+0x10/0x10
[  603.092191][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  603.092225][ T5997]  worker_thread+0xba8/0x11e0
[  603.092258][ T5997]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  603.092280][ T5997]  ? __kthread_parkme+0x7a/0x1f0
[  603.092321][ T5997]  ? __kthread_parkme+0x19c/0x1f0
[  603.092344][ T5997]  kthread+0x388/0x470
[  603.092364][ T5997]  ? __pfx_worker_thread+0x10/0x10
[  603.092378][ T5997]  ? __pfx_kthread+0x10/0x10
[  603.092398][ T5997]  ret_from_fork+0x51e/0xb90
[  603.092423][ T5997]  ? __pfx_ret_from_fork+0x10/0x10
[  603.092452][ T5997]  ? __switch_to+0xc7d/0x1450
[  603.092476][ T5997]  ? __pfx_kthread+0x10/0x10
[  603.092496][ T5997]  ret_from_fork_asm+0x1a/0x30
[  603.092528][ T5997]  </TASK>
[  603.092546][ T5997] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  603.099678][    T9] loop0: writeback error on inode 9394, offset 6144000, sector 30888
[  603.120371][  T809] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  603.663228][ T7513] loop0: detected capacity change from 0 to 32768
[  603.676488][ T7513] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  603.686040][ T7513] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  603.718857][ T7513] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  603.729613][  T809] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  603.736894][  T809] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  603.788788][  T809] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 51ms
[  603.796539][  T809] gfs2: fsid=syz:syz.0: jid=0: Done
[  603.801938][ T7513] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  604.044702][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  604.061438][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  604.078882][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  604.094586][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  604.109952][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  604.109975][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  604.109986][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  604.110012][  T809] Call Trace:
[  604.110019][  T809]  <TASK>
[  604.110027][  T809]  dump_stack_lvl+0xe8/0x150
[  604.110051][  T809]  gfs2_withdraw+0xc3/0x1b0
[  604.110072][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  604.110100][  T809]  inode_go_instantiate+0xea/0x1220
[  604.110121][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  604.110144][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  604.110165][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  604.110186][  T809]  gfs2_instantiate+0x168/0x220
[  604.110204][  T809]  gfs2_inode_lookup+0x727/0xc50
[  604.110228][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  604.110244][  T809]  ? check_path+0x21/0x40
[  604.110262][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  604.110277][  T809]  ? add_lock_to_list+0xc7/0x100
[  604.110294][  T809]  ? lockdep_unlock+0x5d/0xd0
[  604.110312][  T809]  ? __lock_acquire+0x146e/0x2cf0
[  604.110337][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  604.110355][  T809]  delete_work_func+0x311/0x4d0
[  604.110374][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  604.110400][  T809]  ? process_one_work+0x8bb/0x1780
[  604.110421][  T809]  process_one_work+0x9ab/0x1780
[  604.110459][  T809]  ? __pfx_process_one_work+0x10/0x10
[  604.110476][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  604.110510][  T809]  worker_thread+0xba8/0x11e0
[  604.110535][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  604.110556][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  604.110574][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  604.110595][  T809]  kthread+0x388/0x470
[  604.110613][  T809]  ? __pfx_worker_thread+0x10/0x10
[  604.110627][  T809]  ? __pfx_kthread+0x10/0x10
[  604.110647][  T809]  ret_from_fork+0x51e/0xb90
[  604.110672][  T809]  ? __pfx_ret_from_fork+0x10/0x10
[  604.110692][  T809]  ? __switch_to+0xc7d/0x1450
[  604.110716][  T809]  ? __pfx_kthread+0x10/0x10
[  604.110736][  T809]  ret_from_fork_asm+0x1a/0x30
[  604.110768][  T809]  </TASK>
[  604.110775][  T809] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  604.166770][    T9] loop0: writeback error on inode 9394, offset 2560000, sector 23832
[  604.176290][   T24] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  604.647562][ T7520] loop0: detected capacity change from 0 to 32768
[  604.663208][ T7520] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  604.676077][ T7520] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  604.705468][ T7520] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  604.720400][   T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  604.727627][   T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  604.799384][   T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 71ms
[  604.807027][   T24] gfs2: fsid=syz:syz.0: jid=0: Done
[  604.812313][ T7520] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  605.061932][    T9] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  605.088684][ T6488] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  605.115166][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  605.131810][ T5937] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  605.148108][ T6488] CPU: 0 UID: 0 PID: 6488 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
[  605.148132][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  605.148144][ T6488] Workqueue: gfs2-delete/syz:syz delete_work_func
[  605.148169][ T6488] Call Trace:
[  605.148177][ T6488]  <TASK>
[  605.148184][ T6488]  dump_stack_lvl+0xe8/0x150
[  605.148210][ T6488]  gfs2_withdraw+0xc3/0x1b0
[  605.148230][ T6488]  gfs2_meta_buffer+0x225/0x2e0
[  605.148258][ T6488]  inode_go_instantiate+0xea/0x1220
[  605.148278][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  605.148301][ T6488]  ? __pfx_inode_go_instantiate+0x10/0x10
[  605.148322][ T6488]  ? do_raw_spin_unlock+0xf5/0x210
[  605.148346][ T6488]  gfs2_instantiate+0x168/0x220
[  605.148367][ T6488]  gfs2_inode_lookup+0x727/0xc50
[  605.148385][ T6488]  ? seqcount_lockdep_reader_access+0xd4/0x100
[  605.148414][ T6488]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  605.148439][ T6488]  ? gfs2_lookup_by_inum+0x52/0x100
[  605.148457][ T6488]  ? tick_program_event+0x8f/0x120
[  605.148481][ T6488]  ? __lock_acquire+0x6b5/0x2cf0
[  605.148508][ T6488]  gfs2_lookup_by_inum+0x52/0x100
[  605.148529][ T6488]  delete_work_func+0x311/0x4d0
[  605.148555][ T6488]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  605.148577][ T6488]  ? __pfx_delete_work_func+0x10/0x10
[  605.148613][ T6488]  ? process_one_work+0x8bb/0x1780
[  605.148634][ T6488]  process_one_work+0x9ab/0x1780
[  605.148675][ T6488]  ? __pfx_process_one_work+0x10/0x10
[  605.148695][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  605.148729][ T6488]  worker_thread+0xba8/0x11e0
[  605.148754][ T6488]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  605.148775][ T6488]  ? __kthread_parkme+0x7a/0x1f0
[  605.148793][ T6488]  ? __kthread_parkme+0x19c/0x1f0
[  605.148815][ T6488]  kthread+0x388/0x470
[  605.148834][ T6488]  ? __pfx_worker_thread+0x10/0x10
[  605.148848][ T6488]  ? __pfx_kthread+0x10/0x10
[  605.148868][ T6488]  ret_from_fork+0x51e/0xb90
[  605.148893][ T6488]  ? __pfx_ret_from_fork+0x10/0x10
[  605.148914][ T6488]  ? __switch_to+0xc7d/0x1450
[  605.148938][ T6488]  ? __pfx_kthread+0x10/0x10
[  605.148958][ T6488]  ret_from_fork_asm+0x1a/0x30
[  605.148989][ T6488]  </TASK>
[  605.150080][ T6488] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  605.367020][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  605.373823][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  605.415041][ T7220] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  610.374237][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  610.696520][ T7528] loop0: detected capacity change from 0 to 32768
[  610.713092][ T7528] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  610.731218][ T7528] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  610.765934][ T7528] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  610.777348][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  610.786397][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  610.858030][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 71ms
[  610.865812][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  610.871202][ T7528] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  611.118958][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  611.135358][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  611.151477][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  611.167128][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  611.182782][ T5997] CPU: 1 UID: 0 PID: 5997 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  611.182805][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  611.182817][ T5997] Workqueue: gfs2-delete/syz:syz delete_work_func
[  611.182844][ T5997] Call Trace:
[  611.182852][ T5997]  <TASK>
[  611.182858][ T5997]  dump_stack_lvl+0xe8/0x150
[  611.182884][ T5997]  gfs2_withdraw+0xc3/0x1b0
[  611.182905][ T5997]  gfs2_meta_buffer+0x225/0x2e0
[  611.182932][ T5997]  inode_go_instantiate+0xea/0x1220
[  611.182954][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  611.182977][ T5997]  ? __pfx_inode_go_instantiate+0x10/0x10
[  611.182999][ T5997]  ? do_raw_spin_unlock+0xf5/0x210
[  611.183023][ T5997]  gfs2_instantiate+0x168/0x220
[  611.183044][ T5997]  gfs2_inode_lookup+0x727/0xc50
[  611.183072][ T5997]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  611.183097][ T5997]  ? gfs2_lookup_by_inum+0x52/0x100
[  611.183120][ T5997]  ? __lock_acquire+0x6b5/0x2cf0
[  611.183150][ T5997]  gfs2_lookup_by_inum+0x52/0x100
[  611.183172][ T5997]  delete_work_func+0x311/0x4d0
[  611.183191][ T5997]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  611.183221][ T5997]  ? __pfx_delete_work_func+0x10/0x10
[  611.183254][ T5997]  ? process_one_work+0x8bb/0x1780
[  611.183276][ T5997]  process_one_work+0x9ab/0x1780
[  611.183319][ T5997]  ? __pfx_process_one_work+0x10/0x10
[  611.183339][ T5997]  ? do_raw_spin_lock+0x12b/0x2f0
[  611.183374][ T5997]  worker_thread+0xba8/0x11e0
[  611.183400][ T5997]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  611.183421][ T5997]  ? __kthread_parkme+0x7a/0x1f0
[  611.183438][ T5997]  ? __kthread_parkme+0x19c/0x1f0
[  611.183459][ T5997]  kthread+0x388/0x470
[  611.183478][ T5997]  ? __pfx_worker_thread+0x10/0x10
[  611.183492][ T5997]  ? __pfx_kthread+0x10/0x10
[  611.183512][ T5997]  ret_from_fork+0x51e/0xb90
[  611.183538][ T5997]  ? __pfx_ret_from_fork+0x10/0x10
[  611.183559][ T5997]  ? __switch_to+0xc7d/0x1450
[  611.183583][ T5997]  ? __pfx_kthread+0x10/0x10
[  611.183604][ T5997]  ret_from_fork_asm+0x1a/0x30
[  611.183636][ T5997]  </TASK>
[  611.183643][ T5997] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  611.227007][  T808] loop0: writeback error on inode 9394, offset 2176000, sector 23076
[  611.246350][   T24] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  611.712313][ T7536] loop0: detected capacity change from 0 to 32768
[  611.728148][ T7536] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  611.737079][ T7536] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  611.770593][ T7536] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  611.780272][   T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  611.788310][   T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  611.856822][   T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 68ms
[  611.865198][   T24] gfs2: fsid=syz:syz.0: jid=0: Done
[  611.870458][ T7536] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  612.108425][  T808] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  612.125626][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  612.127324][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  612.127345][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  612.127356][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  612.127382][  T808] Call Trace:
[  612.127390][  T808]  <TASK>
[  612.127397][  T808]  dump_stack_lvl+0xe8/0x150
[  612.127424][  T808]  gfs2_withdraw+0xc3/0x1b0
[  612.127443][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  612.127470][  T808]  inode_go_instantiate+0xea/0x1220
[  612.127491][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  612.127514][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  612.127535][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  612.127558][  T808]  gfs2_instantiate+0x168/0x220
[  612.127586][  T808]  gfs2_inode_lookup+0x727/0xc50
[  612.127613][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  612.127633][  T808]  ? check_path+0x21/0x40
[  612.127651][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  612.127669][  T808]  ? add_lock_to_list+0xc7/0x100
[  612.127688][  T808]  ? lockdep_unlock+0x5d/0xd0
[  612.127708][  T808]  ? __lock_acquire+0x146e/0x2cf0
[  612.127737][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  612.127758][  T808]  delete_work_func+0x311/0x4d0
[  612.127782][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  612.127814][  T808]  ? process_one_work+0x8bb/0x1780
[  612.127835][  T808]  process_one_work+0x9ab/0x1780
[  612.127876][  T808]  ? __pfx_process_one_work+0x10/0x10
[  612.127896][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  612.127930][  T808]  worker_thread+0xba8/0x11e0
[  612.127968][  T808]  kthread+0x388/0x470
[  612.127986][  T808]  ? __pfx_worker_thread+0x10/0x10
[  612.128000][  T808]  ? __pfx_kthread+0x10/0x10
[  612.128019][  T808]  ret_from_fork+0x51e/0xb90
[  612.128044][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  612.128063][  T808]  ? __switch_to+0xc7d/0x1450
[  612.128087][  T808]  ? __pfx_kthread+0x10/0x10
[  612.128106][  T808]  ret_from_fork_asm+0x1a/0x30
[  612.128138][  T808]  </TASK>
[  612.128144][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  612.185448][ T5997] loop0: writeback error on inode 9394, offset 896000, sector 20556
[  612.228788][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  612.676956][ T7543] loop0: detected capacity change from 0 to 32768
[  612.693861][ T7543] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  612.707325][ T7543] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  612.738839][ T7543] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  612.751823][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  612.758712][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  612.831737][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 73ms
[  612.840157][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  612.845557][ T7543] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  613.084373][ T5997] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9381 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  613.101017][  T809] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9387 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  613.117414][   T24] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9386 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  613.133524][ T5851] gfs2: fsid=syz:syz.0: fatal: invalid metadata block - bh = 9390 (bad magic number), function = gfs2_meta_buffer, file = fs/gfs2/meta_io.c, line = 496
[  613.149119][  T809] CPU: 1 UID: 0 PID: 809 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  613.149142][  T809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  613.149153][  T809] Workqueue: gfs2-delete/syz:syz delete_work_func
[  613.149181][  T809] Call Trace:
[  613.149188][  T809]  <TASK>
[  613.149196][  T809]  dump_stack_lvl+0xe8/0x150
[  613.149223][  T809]  gfs2_withdraw+0xc3/0x1b0
[  613.149243][  T809]  gfs2_meta_buffer+0x225/0x2e0
[  613.149270][  T809]  inode_go_instantiate+0xea/0x1220
[  613.149292][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  613.149315][  T809]  ? __pfx_inode_go_instantiate+0x10/0x10
[  613.149337][  T809]  ? do_raw_spin_unlock+0xf5/0x210
[  613.149359][  T809]  gfs2_instantiate+0x168/0x220
[  613.149382][  T809]  gfs2_inode_lookup+0x727/0xc50
[  613.149409][  T809]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  613.149433][  T809]  ? gfs2_lookup_by_inum+0x52/0x100
[  613.149450][  T809]  ? trace_hrtimer_start+0x82/0x230
[  613.149472][  T809]  ? __lock_acquire+0x6b5/0x2cf0
[  613.149509][  T809]  gfs2_lookup_by_inum+0x52/0x100
[  613.149530][  T809]  delete_work_func+0x311/0x4d0
[  613.149547][  T809]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  613.149568][  T809]  ? __pfx_delete_work_func+0x10/0x10
[  613.149600][  T809]  ? process_one_work+0x8bb/0x1780
[  613.149621][  T809]  process_one_work+0x9ab/0x1780
[  613.149664][  T809]  ? __pfx_process_one_work+0x10/0x10
[  613.149684][  T809]  ? do_raw_spin_lock+0x12b/0x2f0
[  613.149718][  T809]  worker_thread+0xba8/0x11e0
[  613.149741][  T809]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.149761][  T809]  ? __kthread_parkme+0x7a/0x1f0
[  613.149778][  T809]  ? __kthread_parkme+0x19c/0x1f0
[  613.149801][  T809]  kthread+0x388/0x470
[  613.149820][  T809]  ? __pfx_worker_thread+0x10/0x10
[  613.149834][  T809]  ? __pfx_kthread+0x10/0x10
[  613.149854][  T809]  ret_from_fork+0x51e/0xb90