[  465.878836][ T1222] gfs2: fsid=syz:syz.0: file system withdrawn
[  466.209891][ T7171] loop0: detected capacity change from 0 to 32768
[  466.228716][ T7171] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  466.241307][ T7171] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  466.277854][ T7171] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  466.288646][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  466.295474][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  466.353166][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 57ms
[  466.360982][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  466.366898][ T7171] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  466.611696][   T29] 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
[  466.628049][ T5935] 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
[  466.644953][ T5888] 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
[  466.661865][   T29] CPU: 1 UID: 0 PID: 29 Comm: kworker/1:1 Not tainted syzkaller #0 PREEMPT(full) 
[  466.661889][   T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  466.661900][   T29] Workqueue: gfs2-delete/syz:syz delete_work_func
[  466.661926][   T29] Call Trace:
[  466.661934][   T29]  <TASK>
[  466.661942][   T29]  dump_stack_lvl+0xe8/0x150
[  466.661968][   T29]  gfs2_withdraw+0xc3/0x1b0
[  466.661988][   T29]  gfs2_meta_buffer+0x225/0x2e0
[  466.662016][   T29]  inode_go_instantiate+0xea/0x1220
[  466.662035][   T29]  ? do_raw_spin_lock+0x12b/0x2f0
[  466.662058][   T29]  ? __pfx_inode_go_instantiate+0x10/0x10
[  466.662079][   T29]  ? do_raw_spin_unlock+0xf5/0x210
[  466.662102][   T29]  gfs2_instantiate+0x168/0x220
[  466.662123][   T29]  gfs2_inode_lookup+0x727/0xc50
[  466.662150][   T29]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  466.662175][   T29]  ? gfs2_lookup_by_inum+0x52/0x100
[  466.662193][   T29]  ? trace_hrtimer_start+0x82/0x230
[  466.662215][   T29]  ? __lock_acquire+0x6b5/0x2cf0
[  466.662244][   T29]  gfs2_lookup_by_inum+0x52/0x100
[  466.662266][   T29]  delete_work_func+0x311/0x4d0
[  466.662284][   T29]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  466.662306][   T29]  ? __pfx_delete_work_func+0x10/0x10
[  466.662337][   T29]  ? process_one_work+0x8bb/0x1780
[  466.662358][   T29]  process_one_work+0x9ab/0x1780
[  466.662398][   T29]  ? __pfx_process_one_work+0x10/0x10
[  466.662417][   T29]  ? do_raw_spin_lock+0x12b/0x2f0
[  466.662449][   T29]  worker_thread+0xba8/0x11e0
[  466.662489][   T29]  kthread+0x388/0x470
[  466.662508][   T29]  ? __pfx_worker_thread+0x10/0x10
[  466.662522][   T29]  ? __pfx_kthread+0x10/0x10
[  466.662541][   T29]  ret_from_fork+0x51e/0xb90
[  466.662566][   T29]  ? __pfx_ret_from_fork+0x10/0x10
[  466.662586][   T29]  ? __switch_to+0xc7d/0x1450
[  466.662609][   T29]  ? __pfx_kthread+0x10/0x10
[  466.662628][   T29]  ret_from_fork_asm+0x1a/0x30
[  466.662660][   T29]  </TASK>
[  466.662666][   T29] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  466.730751][    T9] loop0: writeback error on inode 9394, offset 1152000, sector 21060
[  466.741251][ T5888] gfs2: fsid=syz:syz.0: file system withdrawn
[  467.440923][ T7178] loop0: detected capacity change from 0 to 32768
[  467.469044][ T7178] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  467.481600][ T7178] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  467.540503][ T7178] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  467.558260][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  467.574030][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  467.666817][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 92ms
[  467.674382][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  467.679715][ T7178] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  467.929006][ T5935] 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
[  467.944525][ T1222] 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
[  467.960906][   T29] 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
[  467.977644][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  467.977663][ T7183] gfs2: fsid=syz:syz.0: GFS2:adding buf while withdrawn! 0x3cd1
[  467.977667][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  467.977678][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  467.977701][ T1222] Call Trace:
[  467.977706][ T1222]  <TASK>
[  467.977726][ T1222]  dump_stack_lvl+0xe8/0x150
[  467.977751][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  467.977771][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  467.977797][ T1222]  inode_go_instantiate+0xea/0x1220
[  467.977818][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  467.977839][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  467.977858][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  467.977883][ T1222]  gfs2_instantiate+0x168/0x220
[  467.977903][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  467.977930][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  467.977953][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  467.977970][ T1222]  ? trace_hrtimer_start+0x82/0x230
[  467.977991][ T1222]  ? __lock_acquire+0x6b5/0x2cf0
[  467.978019][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  467.978040][ T1222]  delete_work_func+0x311/0x4d0
[  467.978057][ T1222]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  467.978079][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  467.978110][ T1222]  ? process_one_work+0x8bb/0x1780
[  467.978131][ T1222]  process_one_work+0x9ab/0x1780
[  467.978170][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  467.978189][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  467.978222][ T1222]  worker_thread+0xba8/0x11e0
[  467.978245][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  467.978263][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  467.978279][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  467.978301][ T1222]  kthread+0x388/0x470
[  467.978319][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  467.978332][ T1222]  ? __pfx_kthread+0x10/0x10
[  467.978350][ T1222]  ret_from_fork+0x51e/0xb90
[  467.978373][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  467.978392][ T1222]  ? __switch_to+0xc7d/0x1450
[  467.978415][ T1222]  ? __pfx_kthread+0x10/0x10
[  467.978435][ T1222]  ret_from_fork_asm+0x1a/0x30
[  467.978464][ T1222]  </TASK>
[  467.978912][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  467.987676][ T7183] gfs2: fsid=syz:syz.0: gfs2_create_inode: -5
[  468.210469][ T6391] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  468.239321][ T6391] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
Warning: Permanently added '10.128.1.212' (ED25519) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
[  472.998597][   T29] gfs2: fsid=syz:syz.0: file system withdrawn
[  473.243988][ T7201] loop0: detected capacity change from 0 to 32768
[  473.259138][ T7201] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  473.267536][ T7201] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  473.307539][ T7201] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  473.316718][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  473.323510][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  473.370818][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 47ms
[  473.378398][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  473.383734][ T7201] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  473.626309][ T5935] 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
[  473.652304][   T29] 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
[  473.673272][ T5888] 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
[  473.689504][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  473.689526][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  473.689536][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  473.689563][ T5935] Call Trace:
[  473.689569][ T5935]  <TASK>
[  473.689577][ T5935]  dump_stack_lvl+0xe8/0x150
[  473.689602][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  473.689622][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  473.689648][ T5935]  inode_go_instantiate+0xea/0x1220
[  473.689676][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  473.689697][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  473.689716][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  473.689737][ T5935]  gfs2_instantiate+0x168/0x220
[  473.689757][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  473.689782][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  473.689801][ T5935]  ? check_path+0x21/0x40
[  473.689819][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  473.689835][ T5935]  ? add_lock_to_list+0xc7/0x100
[  473.689850][ T5935]  ? lockdep_unlock+0x5d/0xd0
[  473.689865][ T5935]  ? __lock_acquire+0x146e/0x2cf0
[  473.689887][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  473.689903][ T5935]  delete_work_func+0x311/0x4d0
[  473.689922][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  473.689947][ T5935]  ? process_one_work+0x8bb/0x1780
[  473.689964][ T5935]  process_one_work+0x9ab/0x1780
[  473.689996][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  473.690011][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  473.690037][ T5935]  worker_thread+0xba8/0x11e0
[  473.690055][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  473.690071][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  473.690084][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  473.690101][ T5935]  kthread+0x388/0x470
[  473.690115][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  473.690125][ T5935]  ? __pfx_kthread+0x10/0x10
[  473.690140][ T5935]  ret_from_fork+0x51e/0xb90
[  473.690160][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  473.690177][ T5935]  ? __switch_to+0xc7d/0x1450
[  473.690195][ T5935]  ? __pfx_kthread+0x10/0x10
[  473.690210][ T5935]  ret_from_fork_asm+0x1a/0x30
[  473.690234][ T5935]  </TASK>
[  473.690243][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  473.706261][    T9] loop0: writeback error on inode 9394, offset 6400000, sector 31392
[  473.721498][   T29] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  474.228911][ T7210] loop0: detected capacity change from 0 to 32768
[  474.246481][ T7210] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  474.254994][ T7210] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  474.287721][ T7210] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  474.298977][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  474.305828][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  474.381306][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 75ms
[  474.390274][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  474.395568][ T7210] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  474.645033][   T10] 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
[  474.660686][ T5906] 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
[  474.678399][    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
[  474.694268][ 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
[  474.710061][   T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
[  474.710083][   T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  474.710093][   T10] Workqueue: gfs2-delete/syz:syz delete_work_func
[  474.710122][   T10] Call Trace:
[  474.710128][   T10]  <TASK>
[  474.710135][   T10]  dump_stack_lvl+0xe8/0x150
[  474.710162][   T10]  gfs2_withdraw+0xc3/0x1b0
[  474.710182][   T10]  gfs2_meta_buffer+0x225/0x2e0
[  474.710208][   T10]  inode_go_instantiate+0xea/0x1220
[  474.710227][   T10]  ? do_raw_spin_lock+0x12b/0x2f0
[  474.710251][   T10]  ? __pfx_inode_go_instantiate+0x10/0x10
[  474.710272][   T10]  ? do_raw_spin_unlock+0xf5/0x210
[  474.710296][   T10]  gfs2_instantiate+0x168/0x220
[  474.710317][   T10]  gfs2_inode_lookup+0x727/0xc50
[  474.710344][   T10]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  474.710368][   T10]  ? gfs2_lookup_by_inum+0x52/0x100
[  474.710385][   T10]  ? trace_hrtimer_start+0x82/0x230
[  474.710416][   T10]  ? __lock_acquire+0x6b5/0x2cf0
[  474.710442][   T10]  gfs2_lookup_by_inum+0x52/0x100
[  474.710462][   T10]  delete_work_func+0x311/0x4d0
[  474.710480][   T10]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  474.710501][   T10]  ? __pfx_delete_work_func+0x10/0x10
[  474.710531][   T10]  ? process_one_work+0x8bb/0x1780
[  474.710551][   T10]  process_one_work+0x9ab/0x1780
[  474.710591][   T10]  ? __pfx_process_one_work+0x10/0x10
[  474.710611][   T10]  ? do_raw_spin_lock+0x12b/0x2f0
[  474.710664][   T10]  worker_thread+0xba8/0x11e0
[  474.710687][   T10]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  474.710706][   T10]  ? __kthread_parkme+0x7a/0x1f0
[  474.710723][   T10]  ? __kthread_parkme+0x19c/0x1f0
[  474.710743][   T10]  kthread+0x388/0x470
[  474.710761][   T10]  ? __pfx_worker_thread+0x10/0x10
[  474.710774][   T10]  ? __pfx_kthread+0x10/0x10
[  474.710792][   T10]  ret_from_fork+0x51e/0xb90
[  474.710815][   T10]  ? __pfx_ret_from_fork+0x10/0x10
[  474.710834][   T10]  ? __switch_to+0xc7d/0x1450
[  474.710858][   T10]  ? __pfx_kthread+0x10/0x10
[  474.710877][   T10]  ret_from_fork_asm+0x1a/0x30
[  474.710907][   T10]  </TASK>
[  474.710914][   T10] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  474.764329][   T29] loop0: writeback error on inode 9394, offset 2432000, sector 23580
[  474.781125][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  475.253479][ T7217] loop0: detected capacity change from 0 to 32768
[  475.271084][ T7217] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  475.279728][ T7217] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  475.311708][ T7217] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  475.321737][   T29] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  475.329103][   T29] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  475.404902][   T29] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 75ms
[  475.412540][   T29] gfs2: fsid=syz:syz.0: jid=0: Done
[  475.417835][ T7217] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  475.664177][ 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
[  475.686752][    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
[  475.702391][   T10] 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
[  475.718362][ T5906] 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
[  475.734048][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  475.734070][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  475.734079][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  475.734106][    T9] Call Trace:
[  475.734113][    T9]  <TASK>
[  475.734120][    T9]  dump_stack_lvl+0xe8/0x150
[  475.734147][    T9]  gfs2_withdraw+0xc3/0x1b0
[  475.734166][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  475.734192][    T9]  inode_go_instantiate+0xea/0x1220
[  475.734213][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  475.734236][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  475.734257][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  475.734280][    T9]  gfs2_instantiate+0x168/0x220
[  475.734302][    T9]  gfs2_inode_lookup+0x727/0xc50
[  475.734337][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  475.734361][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  475.734377][    T9]  ? trace_hrtimer_start+0x82/0x230
[  475.734397][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  475.734426][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  475.734448][    T9]  delete_work_func+0x311/0x4d0
[  475.734466][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  475.734489][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  475.734519][    T9]  ? process_one_work+0x8bb/0x1780
[  475.734541][    T9]  process_one_work+0x9ab/0x1780
[  475.734583][    T9]  ? __pfx_process_one_work+0x10/0x10
[  475.734604][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  475.734637][    T9]  worker_thread+0xba8/0x11e0
[  475.734677][    T9]  kthread+0x388/0x470
[  475.734696][    T9]  ? __pfx_worker_thread+0x10/0x10
[  475.734709][    T9]  ? __pfx_kthread+0x10/0x10
[  475.734729][    T9]  ret_from_fork+0x51e/0xb90
[  475.734753][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  475.734772][    T9]  ? __switch_to+0xc7d/0x1450
[  475.734793][    T9]  ? __pfx_kthread+0x10/0x10
[  475.734811][    T9]  ret_from_fork_asm+0x1a/0x30
[  475.734841][    T9]  </TASK>
[  475.734847][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  475.771303][ T5935] loop0: writeback error on inode 9394, offset 5248000, sector 29124
[  475.791210][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  476.260084][ T7224] loop0: detected capacity change from 0 to 32768
[  476.281642][ T7224] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  476.290328][ T7224] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  476.320540][ T7224] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  476.341460][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  476.348380][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  476.389407][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 41ms
[  476.397053][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  476.402319][ T7224] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  476.647812][ T1222] 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
[  476.663324][ T5888] 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
[  476.679598][   T29] 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
[  476.696437][ T5935] 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
[  476.712163][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  476.712186][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  476.712196][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  476.712223][ T1222] Call Trace:
[  476.712229][ T1222]  <TASK>
[  476.712237][ T1222]  dump_stack_lvl+0xe8/0x150
[  476.712263][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  476.712283][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  476.712310][ T1222]  inode_go_instantiate+0xea/0x1220
[  476.712330][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  476.712351][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  476.712371][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  476.712403][ T1222]  gfs2_instantiate+0x168/0x220
[  476.712425][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  476.712452][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  476.712477][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  476.712495][ T1222]  ? trace_hrtimer_start+0x82/0x230
[  476.712517][ T1222]  ? __lock_acquire+0x6b5/0x2cf0
[  476.712545][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  476.712567][ T1222]  delete_work_func+0x311/0x4d0
[  476.712586][ T1222]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  476.712608][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  476.712640][ T1222]  ? process_one_work+0x8bb/0x1780
[  476.712661][ T1222]  process_one_work+0x9ab/0x1780
[  476.712703][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  476.712723][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  476.712757][ T1222]  worker_thread+0xba8/0x11e0
[  476.712782][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  476.712802][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  476.712818][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  476.712840][ T1222]  kthread+0x388/0x470
[  476.712857][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  476.712869][ T1222]  ? __pfx_kthread+0x10/0x10
[  476.712887][ T1222]  ret_from_fork+0x51e/0xb90
[  476.712911][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  476.712928][ T1222]  ? __switch_to+0xc7d/0x1450
[  476.712952][ T1222]  ? __pfx_kthread+0x10/0x10
[  476.712970][ T1222]  ret_from_fork_asm+0x1a/0x30
[  476.712995][ T1222]  </TASK>
[  476.713004][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  476.755580][ T6488] loop0: writeback error on inode 9394, offset 3456000, sector 25596
[  476.770731][ T5935] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  477.255054][ T7231] loop0: detected capacity change from 0 to 32768
[  477.271887][ T7231] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  477.282277][ T7231] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  477.309714][ T7231] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  477.319884][ T5935] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  477.328869][ T5935] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  477.413447][ T5935] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 84ms
[  477.421037][ T5935] gfs2: fsid=syz:syz.0: jid=0: Done
[  477.426370][ T7231] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  477.672671][   T10] 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
[  477.688245][    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
[  477.704629][ T5906] 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
[  477.722472][ 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
[  477.739251][   T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
[  477.739273][   T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  477.739282][   T10] Workqueue: gfs2-delete/syz:syz delete_work_func
[  477.739307][   T10] Call Trace:
[  477.739313][   T10]  <TASK>
[  477.739320][   T10]  dump_stack_lvl+0xe8/0x150
[  477.739344][   T10]  gfs2_withdraw+0xc3/0x1b0
[  477.739363][   T10]  gfs2_meta_buffer+0x225/0x2e0
[  477.739390][   T10]  inode_go_instantiate+0xea/0x1220
[  477.739411][   T10]  ? do_raw_spin_lock+0x12b/0x2f0
[  477.739437][   T10]  ? __pfx_inode_go_instantiate+0x10/0x10
[  477.739458][   T10]  ? do_raw_spin_unlock+0xf5/0x210
[  477.739480][   T10]  gfs2_instantiate+0x168/0x220
[  477.739500][   T10]  gfs2_inode_lookup+0x727/0xc50
[  477.739528][   T10]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  477.739553][   T10]  ? gfs2_lookup_by_inum+0x52/0x100
[  477.739570][   T10]  ? trace_hrtimer_start+0x82/0x230
[  477.739591][   T10]  ? __lock_acquire+0x6b5/0x2cf0
[  477.739619][   T10]  gfs2_lookup_by_inum+0x52/0x100
[  477.739641][   T10]  delete_work_func+0x311/0x4d0
[  477.739660][   T10]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  477.739682][   T10]  ? __pfx_delete_work_func+0x10/0x10
[  477.739714][   T10]  ? process_one_work+0x8bb/0x1780
[  477.739744][   T10]  process_one_work+0x9ab/0x1780
[  477.739785][   T10]  ? __pfx_process_one_work+0x10/0x10
[  477.739805][   T10]  ? do_raw_spin_lock+0x12b/0x2f0
[  477.739839][   T10]  worker_thread+0xba8/0x11e0
[  477.739864][   T10]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  477.739883][   T10]  ? __kthread_parkme+0x7a/0x1f0
[  477.739900][   T10]  ? __kthread_parkme+0x19c/0x1f0
[  477.739920][   T10]  kthread+0x388/0x470
[  477.739937][   T10]  ? __pfx_worker_thread+0x10/0x10
[  477.739951][   T10]  ? __pfx_kthread+0x10/0x10
[  477.739970][   T10]  ret_from_fork+0x51e/0xb90
[  477.739994][   T10]  ? __pfx_ret_from_fork+0x10/0x10
[  477.740014][   T10]  ? __switch_to+0xc7d/0x1450
[  477.740037][   T10]  ? __pfx_kthread+0x10/0x10
[  477.740057][   T10]  ret_from_fork_asm+0x1a/0x30
[  477.740088][   T10]  </TASK>
[  477.740106][   T10] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  477.750484][ T1222] loop0: writeback error on inode 9394, offset 5632000, sector 29880
[  477.781108][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  478.320132][ T7238] loop0: detected capacity change from 0 to 32768
[  478.343343][ T7238] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  478.351958][ T7238] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  478.383396][ T7238] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  478.394069][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  478.404729][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  478.472380][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 67ms
[  478.479935][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  478.485163][ T7238] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  478.730604][   T10] 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
[  478.730689][ T5935] 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
[  478.748047][ 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
[  478.764796][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  478.764819][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  478.764829][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  478.764859][ T5935] Call Trace:
[  478.764867][ T5935]  <TASK>
[  478.764875][ T5935]  dump_stack_lvl+0xe8/0x150
[  478.764901][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  478.764920][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  478.764947][ T5935]  inode_go_instantiate+0xea/0x1220
[  478.764967][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  478.764989][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  478.765009][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  478.765031][ T5935]  gfs2_instantiate+0x168/0x220
[  478.765051][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  478.765077][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  478.765100][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  478.765117][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  478.765138][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  478.765165][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  478.765194][ T5935]  delete_work_func+0x311/0x4d0
[  478.765212][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  478.765233][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  478.765264][ T5935]  ? process_one_work+0x8bb/0x1780
[  478.765285][ T5935]  process_one_work+0x9ab/0x1780
[  478.765325][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  478.765344][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  478.765377][ T5935]  worker_thread+0xba8/0x11e0
[  478.765400][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  478.765419][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  478.765435][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  478.765456][ T5935]  kthread+0x388/0x470
[  478.765474][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  478.765487][ T5935]  ? __pfx_kthread+0x10/0x10
[  478.765506][ T5935]  ret_from_fork+0x51e/0xb90
[  478.765530][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  478.765549][ T5935]  ? __switch_to+0xc7d/0x1450
[  478.765573][ T5935]  ? __pfx_kthread+0x10/0x10
[  478.765592][ T5935]  ret_from_fork_asm+0x1a/0x30
[  478.765622][ T5935]  </TASK>
[  478.765641][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  478.985765][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  479.014463][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  484.038633][   T29] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  484.357405][ T7246] loop0: detected capacity change from 0 to 32768
[  484.383766][ T7246] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  484.392509][ T7246] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  484.423419][ T7246] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  484.434221][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  484.441634][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  484.508630][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 66ms
[  484.516744][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  484.522009][ T7246] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  484.762488][ T5906] 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
[  484.785944][   T10] 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
[  484.801321][    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
[  484.818598][ 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
[  484.835860][ T5906] CPU: 0 UID: 0 PID: 5906 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  484.835885][ T5906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  484.835895][ T5906] Workqueue: gfs2-delete/syz:syz delete_work_func
[  484.835922][ T5906] Call Trace:
[  484.835928][ T5906]  <TASK>
[  484.835935][ T5906]  dump_stack_lvl+0xe8/0x150
[  484.835960][ T5906]  gfs2_withdraw+0xc3/0x1b0
[  484.835978][ T5906]  gfs2_meta_buffer+0x225/0x2e0
[  484.836004][ T5906]  inode_go_instantiate+0xea/0x1220
[  484.836022][ T5906]  ? do_raw_spin_lock+0x12b/0x2f0
[  484.836043][ T5906]  ? __pfx_inode_go_instantiate+0x10/0x10
[  484.836063][ T5906]  ? do_raw_spin_unlock+0xf5/0x210
[  484.836085][ T5906]  gfs2_instantiate+0x168/0x220
[  484.836106][ T5906]  gfs2_inode_lookup+0x727/0xc50
[  484.836133][ T5906]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  484.836158][ T5906]  ? gfs2_lookup_by_inum+0x52/0x100
[  484.836176][ T5906]  ? trace_hrtimer_start+0x82/0x230
[  484.836197][ T5906]  ? __lock_acquire+0x6b5/0x2cf0
[  484.836226][ T5906]  gfs2_lookup_by_inum+0x52/0x100
[  484.836246][ T5906]  delete_work_func+0x311/0x4d0
[  484.836263][ T5906]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  484.836285][ T5906]  ? __pfx_delete_work_func+0x10/0x10
[  484.836318][ T5906]  ? process_one_work+0x8bb/0x1780
[  484.836339][ T5906]  process_one_work+0x9ab/0x1780
[  484.836380][ T5906]  ? __pfx_process_one_work+0x10/0x10
[  484.836399][ T5906]  ? do_raw_spin_lock+0x12b/0x2f0
[  484.836434][ T5906]  worker_thread+0xba8/0x11e0
[  484.836482][ T5906]  kthread+0x388/0x470
[  484.836501][ T5906]  ? __pfx_worker_thread+0x10/0x10
[  484.836514][ T5906]  ? __pfx_kthread+0x10/0x10
[  484.836533][ T5906]  ret_from_fork+0x51e/0xb90
[  484.836556][ T5906]  ? __pfx_ret_from_fork+0x10/0x10
[  484.836576][ T5906]  ? __switch_to+0xc7d/0x1450
[  484.836599][ T5906]  ? __pfx_kthread+0x10/0x10
[  484.836619][ T5906]  ret_from_fork_asm+0x1a/0x30
[  484.836650][ T5906]  </TASK>
[  485.030155][ T5935] loop0: writeback error on inode 9394, offset 4608000, sector 27864
[  485.037611][ T5906] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  485.054443][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  485.059287][ T6506] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  485.426234][ T7254] loop0: detected capacity change from 0 to 32768
[  485.452416][ T7254] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  485.460796][ T7254] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  485.493742][ T7254] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  485.509746][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  485.517044][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  485.578687][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 61ms
[  485.586312][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  485.593044][ T7254] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  485.836706][ T5935] 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
[  485.853583][ T5888] 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
[  485.869258][ T1222] 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
[  485.885486][ T5888] CPU: 1 UID: 0 PID: 5888 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  485.885509][ T5888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  485.885518][ T5888] Workqueue: gfs2-delete/syz:syz delete_work_func
[  485.885543][ T5888] Call Trace:
[  485.885549][ T5888]  <TASK>
[  485.885557][ T5888]  dump_stack_lvl+0xe8/0x150
[  485.885582][ T5888]  gfs2_withdraw+0xc3/0x1b0
[  485.885600][ T5888]  gfs2_meta_buffer+0x225/0x2e0
[  485.885625][ T5888]  inode_go_instantiate+0xea/0x1220
[  485.885644][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  485.885665][ T5888]  ? __pfx_inode_go_instantiate+0x10/0x10
[  485.885684][ T5888]  ? do_raw_spin_unlock+0xf5/0x210
[  485.885705][ T5888]  gfs2_instantiate+0x168/0x220
[  485.885722][ T5888]  gfs2_inode_lookup+0x727/0xc50
[  485.885747][ T5888]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  485.885772][ T5888]  ? gfs2_lookup_by_inum+0x52/0x100
[  485.885794][ T5888]  ? __lock_acquire+0x6b5/0x2cf0
[  485.885823][ T5888]  gfs2_lookup_by_inum+0x52/0x100
[  485.885846][ T5888]  delete_work_func+0x311/0x4d0
[  485.885864][ T5888]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  485.885890][ T5888]  ? __pfx_delete_work_func+0x10/0x10
[  485.885929][ T5888]  ? process_one_work+0x8bb/0x1780
[  485.885949][ T5888]  process_one_work+0x9ab/0x1780
[  485.885989][ T5888]  ? __pfx_process_one_work+0x10/0x10
[  485.886008][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  485.886042][ T5888]  worker_thread+0xba8/0x11e0
[  485.886081][ T5888]  kthread+0x388/0x470
[  485.886100][ T5888]  ? __pfx_worker_thread+0x10/0x10
[  485.886114][ T5888]  ? __pfx_kthread+0x10/0x10
[  485.886133][ T5888]  ret_from_fork+0x51e/0xb90
[  485.886158][ T5888]  ? __pfx_ret_from_fork+0x10/0x10
[  485.886178][ T5888]  ? __switch_to+0xc7d/0x1450
[  485.886202][ T5888]  ? __pfx_kthread+0x10/0x10
[  485.886221][ T5888]  ret_from_fork_asm+0x1a/0x30
[  485.886260][ T5888]  </TASK>
[  486.068291][ T5888] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  486.085713][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  486.092031][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  486.121876][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  491.158549][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  491.486142][ T7263] loop0: detected capacity change from 0 to 32768
[  491.507816][ T7263] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  491.517485][ T7263] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  491.551869][ T7263] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  491.561728][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  491.570350][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  491.613708][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 43ms
[  491.622165][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  491.628105][ T7263] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  491.872209][ T5888] 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
[  491.888708][ T5935] 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
[  491.904331][   T29] 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
[  491.922546][ T6496] 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
[  491.938228][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  491.938251][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  491.938262][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  491.938295][ T5935] Call Trace:
[  491.938302][ T5935]  <TASK>
[  491.938308][ T5935]  dump_stack_lvl+0xe8/0x150
[  491.938333][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  491.938352][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  491.938379][ T5935]  inode_go_instantiate+0xea/0x1220
[  491.938399][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  491.938421][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  491.938443][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  491.938466][ T5935]  gfs2_instantiate+0x168/0x220
[  491.938486][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  491.938513][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  491.938538][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  491.938555][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  491.938576][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  491.938604][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  491.938625][ T5935]  delete_work_func+0x311/0x4d0
[  491.938643][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  491.938665][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  491.938695][ T5935]  ? process_one_work+0x8bb/0x1780
[  491.938716][ T5935]  process_one_work+0x9ab/0x1780
[  491.938756][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  491.938775][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  491.938808][ T5935]  worker_thread+0xba8/0x11e0
[  491.938833][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  491.938854][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  491.938871][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  491.938892][ T5935]  kthread+0x388/0x470
[  491.938911][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  491.938924][ T5935]  ? __pfx_kthread+0x10/0x10
[  491.938943][ T5935]  ret_from_fork+0x51e/0xb90
[  491.938968][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  491.938987][ T5935]  ? __switch_to+0xc7d/0x1450
[  491.939010][ T5935]  ? __pfx_kthread+0x10/0x10
[  491.939029][ T5935]  ret_from_fork_asm+0x1a/0x30
[  491.939060][ T5935]  </TASK>
[  491.939067][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  492.009243][ T5906] loop0: writeback error on inode 9394, offset 1280000, sector 21312
[  492.031274][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  492.488419][ T7272] loop0: detected capacity change from 0 to 32768
[  492.518175][ T7272] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  492.527036][ T7272] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  492.559024][ T7272] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  492.569452][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  492.576713][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  492.651652][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 74ms
[  492.659307][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  492.664551][ T7272] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  492.908743][ T5906] 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
[  492.926428][    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
[  492.942319][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  492.942343][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  492.942353][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  492.942380][    T9] Call Trace:
[  492.942387][    T9]  <TASK>
[  492.942395][    T9]  dump_stack_lvl+0xe8/0x150
[  492.942421][    T9]  gfs2_withdraw+0xc3/0x1b0
[  492.942440][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  492.942467][    T9]  inode_go_instantiate+0xea/0x1220
[  492.942488][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  492.942510][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  492.942531][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  492.942554][    T9]  gfs2_instantiate+0x168/0x220
[  492.942574][    T9]  gfs2_inode_lookup+0x727/0xc50
[  492.942601][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  492.942626][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  492.942644][    T9]  ? trace_hrtimer_start+0x82/0x230
[  492.942664][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  492.942693][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  492.942714][    T9]  delete_work_func+0x311/0x4d0
[  492.942731][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  492.942761][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  492.942789][    T9]  ? process_one_work+0x8bb/0x1780
[  492.942809][    T9]  process_one_work+0x9ab/0x1780
[  492.942847][    T9]  ? __pfx_process_one_work+0x10/0x10
[  492.942866][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  492.942895][    T9]  worker_thread+0xba8/0x11e0
[  492.942925][    T9]  kthread+0x388/0x470
[  492.942940][    T9]  ? __pfx_worker_thread+0x10/0x10
[  492.942950][    T9]  ? __pfx_kthread+0x10/0x10
[  492.942965][    T9]  ret_from_fork+0x51e/0xb90
[  492.942984][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  492.943004][    T9]  ? __switch_to+0xc7d/0x1450
[  492.943022][    T9]  ? __pfx_kthread+0x10/0x10
[  492.943037][    T9]  ret_from_fork_asm+0x1a/0x30
[  492.943060][    T9]  </TASK>
[  492.943080][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  493.137763][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  493.144109][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  493.176247][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  498.198615][   T10] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  498.514929][ T7285] loop0: detected capacity change from 0 to 32768
[  498.530282][ T7285] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  498.548901][ T7285] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  498.588753][ T7285] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  498.599051][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  498.606276][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  498.671603][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 65ms
[  498.680031][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  498.685323][ T7285] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  498.935291][ T6496] 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
[  498.956040][ T6496] CPU: 1 UID: 0 PID: 6496 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  498.956063][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  498.956072][ T6496] Workqueue: gfs2-delete/syz:syz delete_work_func
[  498.956099][ T6496] Call Trace:
[  498.956105][ T6496]  <TASK>
[  498.956114][ T6496]  dump_stack_lvl+0xe8/0x150
[  498.956139][ T6496]  gfs2_withdraw+0xc3/0x1b0
[  498.956159][ T6496]  gfs2_meta_buffer+0x225/0x2e0
[  498.956187][ T6496]  inode_go_instantiate+0xea/0x1220
[  498.956206][ T6496]  ? do_raw_spin_lock+0x12b/0x2f0
[  498.956228][ T6496]  ? __pfx_inode_go_instantiate+0x10/0x10
[  498.956248][ T6496]  ? do_raw_spin_unlock+0xf5/0x210
[  498.956270][ T6496]  gfs2_instantiate+0x168/0x220
[  498.956291][ T6496]  gfs2_inode_lookup+0x727/0xc50
[  498.956317][ T6496]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  498.956336][ T6496]  ? check_path+0x21/0x40
[  498.956354][ T6496]  ? gfs2_lookup_by_inum+0x52/0x100
[  498.956372][ T6496]  ? add_lock_to_list+0xc7/0x100
[  498.956390][ T6496]  ? lockdep_unlock+0x5d/0xd0
[  498.956408][ T6496]  ? __lock_acquire+0x146e/0x2cf0
[  498.956436][ T6496]  gfs2_lookup_by_inum+0x52/0x100
[  498.956471][ T6496]  delete_work_func+0x311/0x4d0
[  498.956494][ T6496]  ? __pfx_delete_work_func+0x10/0x10
[  498.956519][ T6496]  ? lock_acquire+0x20b/0x2e0
[  498.956544][ T6496]  ? process_one_work+0x8bb/0x1780
[  498.956565][ T6496]  process_one_work+0x9ab/0x1780
[  498.956605][ T6496]  ? __pfx_process_one_work+0x10/0x10
[  498.956624][ T6496]  ? do_raw_spin_lock+0x12b/0x2f0
[  498.956658][ T6496]  worker_thread+0xba8/0x11e0
[  498.956681][ T6496]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  498.956701][ T6496]  ? __kthread_parkme+0x7a/0x1f0
[  498.956718][ T6496]  ? __kthread_parkme+0x19c/0x1f0
[  498.956739][ T6496]  kthread+0x388/0x470
[  498.956758][ T6496]  ? __pfx_worker_thread+0x10/0x10
[  498.956771][ T6496]  ? __pfx_kthread+0x10/0x10
[  498.956789][ T6496]  ret_from_fork+0x51e/0xb90
[  498.956814][ T6496]  ? __pfx_ret_from_fork+0x10/0x10
[  498.956833][ T6496]  ? __switch_to+0xc7d/0x1450
[  498.956856][ T6496]  ? __pfx_kthread+0x10/0x10
[  498.956874][ T6496]  ret_from_fork_asm+0x1a/0x30
[  498.956905][ T6496]  </TASK>
[  498.956913][ T6496] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  499.026886][   T10] loop0: writeback error on inode 9394, offset 2048000, sector 22824
[  499.041137][   T29] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  499.501755][ T7293] loop0: detected capacity change from 0 to 32768
[  499.516701][ T7293] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  499.527286][ T7293] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  499.559588][ T7293] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  499.571951][   T29] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  499.580948][   T29] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  499.653544][   T29] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 72ms
[  499.661349][   T29] gfs2: fsid=syz:syz.0: jid=0: Done
[  499.666798][ T7293] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  499.911759][ T5935] 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
[  499.931886][ T5888] 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
[  499.948436][ T6496] 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
[  499.965378][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  499.965413][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  499.965423][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  499.965450][ T5935] Call Trace:
[  499.965456][ T5935]  <TASK>
[  499.965464][ T5935]  dump_stack_lvl+0xe8/0x150
[  499.965489][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  499.965507][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  499.965535][ T5935]  inode_go_instantiate+0xea/0x1220
[  499.965556][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  499.965579][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  499.965601][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  499.965622][ T5935]  gfs2_instantiate+0x168/0x220
[  499.965642][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  499.965669][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  499.965692][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  499.965709][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  499.965730][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  499.965758][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  499.965779][ T5935]  delete_work_func+0x311/0x4d0
[  499.965797][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  499.965818][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  499.965849][ T5935]  ? process_one_work+0x8bb/0x1780
[  499.965871][ T5935]  process_one_work+0x9ab/0x1780
[  499.965912][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  499.965930][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  499.965963][ T5935]  worker_thread+0xba8/0x11e0
[  499.965989][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  499.966009][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  499.966026][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  499.966048][ T5935]  kthread+0x388/0x470
[  499.966067][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  499.966081][ T5935]  ? __pfx_kthread+0x10/0x10
[  499.966100][ T5935]  ret_from_fork+0x51e/0xb90
[  499.966125][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  499.966145][ T5935]  ? __switch_to+0xc7d/0x1450
[  499.966168][ T5935]  ? __pfx_kthread+0x10/0x10
[  499.966188][ T5935]  ret_from_fork_asm+0x1a/0x30
[  499.966219][ T5935]  </TASK>
[  499.984783][   T10] loop0: writeback error on inode 9394, offset 4736000, sector 28116
[  499.987304][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  500.185009][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  500.189827][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  500.543491][ T7300] loop0: detected capacity change from 0 to 32768
[  500.558152][ T7300] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  500.566917][ T7300] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  500.594880][ T7300] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  500.608687][   T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  500.615589][   T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  500.693157][   T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 77ms
[  500.701514][   T10] gfs2: fsid=syz:syz.0: jid=0: Done
[  500.706837][ T7300] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  500.945530][ T5906] 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
[  500.961595][ T6506] 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
[  500.978433][    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
[  500.995755][ T6506] CPU: 0 UID: 0 PID: 6506 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full) 
[  500.995778][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  500.995788][ T6506] Workqueue: gfs2-delete/syz:syz delete_work_func
[  500.995822][ T6506] Call Trace:
[  500.995830][ T6506]  <TASK>
[  500.995837][ T6506]  dump_stack_lvl+0xe8/0x150
[  500.995865][ T6506]  gfs2_withdraw+0xc3/0x1b0
[  500.995885][ T6506]  gfs2_meta_buffer+0x225/0x2e0
[  500.995910][ T6506]  inode_go_instantiate+0xea/0x1220
[  500.995931][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  500.995954][ T6506]  ? __pfx_inode_go_instantiate+0x10/0x10
[  500.995975][ T6506]  ? do_raw_spin_unlock+0xf5/0x210
[  500.995999][ T6506]  gfs2_instantiate+0x168/0x220
[  500.996020][ T6506]  gfs2_inode_lookup+0x727/0xc50
[  500.996047][ T6506]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  500.996072][ T6506]  ? gfs2_lookup_by_inum+0x52/0x100
[  500.996089][ T6506]  ? trace_hrtimer_start+0x82/0x230
[  500.996111][ T6506]  ? __lock_acquire+0x6b5/0x2cf0
[  500.996139][ T6506]  gfs2_lookup_by_inum+0x52/0x100
[  500.996161][ T6506]  delete_work_func+0x311/0x4d0
[  500.996179][ T6506]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  500.996202][ T6506]  ? __pfx_delete_work_func+0x10/0x10
[  500.996234][ T6506]  ? process_one_work+0x8bb/0x1780
[  500.996256][ T6506]  process_one_work+0x9ab/0x1780
[  500.996308][ T6506]  ? __pfx_process_one_work+0x10/0x10
[  500.996328][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  500.996362][ T6506]  worker_thread+0xba8/0x11e0
[  500.996386][ T6506]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  500.996406][ T6506]  ? __kthread_parkme+0x7a/0x1f0
[  500.996423][ T6506]  ? __kthread_parkme+0x19c/0x1f0
[  500.996445][ T6506]  kthread+0x388/0x470
[  500.996464][ T6506]  ? __pfx_worker_thread+0x10/0x10
[  500.996478][ T6506]  ? __pfx_kthread+0x10/0x10
[  500.996497][ T6506]  ret_from_fork+0x51e/0xb90
[  500.996521][ T6506]  ? __pfx_ret_from_fork+0x10/0x10
[  500.996541][ T6506]  ? __switch_to+0xc7d/0x1450
[  500.996572][ T6506]  ? __pfx_kthread+0x10/0x10
[  500.996592][ T6506]  ret_from_fork_asm+0x1a/0x30
[  500.996622][ T6506]  </TASK>
[  501.042387][ T5935] loop0: writeback error on inode 9394, offset 1152000, sector 21060
[  501.053246][ T6506] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  501.214520][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  501.219890][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  501.479564][ T1313] ieee802154 phy0 wpan0: encryption failed: -22
[  501.487185][ T1313] ieee802154 phy1 wpan1: encryption failed: -22
[  501.582352][ T7307] loop0: detected capacity change from 0 to 32768
[  501.598333][ T7307] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  501.608211][ T7307] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  501.639737][ T7307] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  501.650163][ T5935] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  501.658153][ T5935] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  501.703122][ T5935] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 44ms
[  501.711465][ T5935] gfs2: fsid=syz:syz.0: jid=0: Done
[  501.716852][ T7307] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  501.955645][ T6506] 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
[  501.976346][   T10] 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
[  501.993780][    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
[  502.009382][ T5906] 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
[  502.025786][ T5906] CPU: 0 UID: 0 PID: 5906 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  502.025823][ T5906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  502.025833][ T5906] Workqueue: gfs2-delete/syz:syz delete_work_func
[  502.025860][ T5906] Call Trace:
[  502.025867][ T5906]  <TASK>
[  502.025874][ T5906]  dump_stack_lvl+0xe8/0x150
[  502.025902][ T5906]  gfs2_withdraw+0xc3/0x1b0
[  502.025921][ T5906]  gfs2_meta_buffer+0x225/0x2e0
[  502.025946][ T5906]  inode_go_instantiate+0xea/0x1220
[  502.025966][ T5906]  ? do_raw_spin_lock+0x12b/0x2f0
[  502.025988][ T5906]  ? __pfx_inode_go_instantiate+0x10/0x10
[  502.026008][ T5906]  ? do_raw_spin_unlock+0xf5/0x210
[  502.026031][ T5906]  gfs2_instantiate+0x168/0x220
[  502.026051][ T5906]  gfs2_inode_lookup+0x727/0xc50
[  502.026078][ T5906]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  502.026102][ T5906]  ? gfs2_lookup_by_inum+0x52/0x100
[  502.026119][ T5906]  ? trace_hrtimer_start+0x82/0x230
[  502.026140][ T5906]  ? __lock_acquire+0x6b5/0x2cf0
[  502.026178][ T5906]  gfs2_lookup_by_inum+0x52/0x100
[  502.026199][ T5906]  delete_work_func+0x311/0x4d0
[  502.026217][ T5906]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  502.026239][ T5906]  ? __pfx_delete_work_func+0x10/0x10
[  502.026268][ T5906]  ? process_one_work+0x8bb/0x1780
[  502.026290][ T5906]  process_one_work+0x9ab/0x1780
[  502.026331][ T5906]  ? __pfx_process_one_work+0x10/0x10
[  502.026351][ T5906]  ? do_raw_spin_lock+0x12b/0x2f0
[  502.026385][ T5906]  worker_thread+0xba8/0x11e0
[  502.026424][ T5906]  kthread+0x388/0x470
[  502.026443][ T5906]  ? __pfx_worker_thread+0x10/0x10
[  502.026456][ T5906]  ? __pfx_kthread+0x10/0x10
[  502.026474][ T5906]  ret_from_fork+0x51e/0xb90
[  502.026495][ T5906]  ? __pfx_ret_from_fork+0x10/0x10
[  502.026513][ T5906]  ? __switch_to+0xc7d/0x1450
[  502.026534][ T5906]  ? __pfx_kthread+0x10/0x10
[  502.026553][ T5906]  ret_from_fork_asm+0x1a/0x30
[  502.026583][ T5906]  </TASK>
[  502.044359][ T5935] loop0: writeback error on inode 9394, offset 4736000, sector 28116
[  502.046994][ T5906] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  502.229720][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  502.234870][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  502.588962][ T7314] loop0: detected capacity change from 0 to 32768
[  502.603707][ T7314] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  502.612049][ T7314] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  502.646284][ T7314] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  502.657392][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  502.664393][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  502.732224][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 67ms
[  502.740388][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  502.745661][ T7314] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  502.995025][   T29] 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
[  503.012824][ T6496] 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
[  503.028429][ T5935] 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
[  503.043830][ T5888] 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
[  503.059321][   T29] CPU: 1 UID: 0 PID: 29 Comm: kworker/1:1 Not tainted syzkaller #0 PREEMPT(full) 
[  503.059342][   T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  503.059352][   T29] Workqueue: gfs2-delete/syz:syz delete_work_func
[  503.059377][   T29] Call Trace:
[  503.059384][   T29]  <TASK>
[  503.059392][   T29]  dump_stack_lvl+0xe8/0x150
[  503.059417][   T29]  gfs2_withdraw+0xc3/0x1b0
[  503.059436][   T29]  gfs2_meta_buffer+0x225/0x2e0
[  503.059463][   T29]  inode_go_instantiate+0xea/0x1220
[  503.059484][   T29]  ? do_raw_spin_lock+0x12b/0x2f0
[  503.059507][   T29]  ? __pfx_inode_go_instantiate+0x10/0x10
[  503.059528][   T29]  ? do_raw_spin_unlock+0xf5/0x210
[  503.059550][   T29]  gfs2_instantiate+0x168/0x220
[  503.059572][   T29]  gfs2_inode_lookup+0x727/0xc50
[  503.059597][   T29]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  503.059622][   T29]  ? gfs2_lookup_by_inum+0x52/0x100
[  503.059644][   T29]  ? __lock_acquire+0x6b5/0x2cf0
[  503.059673][   T29]  gfs2_lookup_by_inum+0x52/0x100
[  503.059694][   T29]  delete_work_func+0x311/0x4d0
[  503.059713][   T29]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  503.059735][   T29]  ? __pfx_delete_work_func+0x10/0x10
[  503.059767][   T29]  ? process_one_work+0x8bb/0x1780
[  503.059787][   T29]  process_one_work+0x9ab/0x1780
[  503.059828][   T29]  ? __pfx_process_one_work+0x10/0x10
[  503.059847][   T29]  ? do_raw_spin_lock+0x12b/0x2f0
[  503.059882][   T29]  worker_thread+0xba8/0x11e0
[  503.059921][   T29]  kthread+0x388/0x470
[  503.059939][   T29]  ? __pfx_worker_thread+0x10/0x10
[  503.059953][   T29]  ? __pfx_kthread+0x10/0x10
[  503.059972][   T29]  ret_from_fork+0x51e/0xb90
[  503.059995][   T29]  ? __pfx_ret_from_fork+0x10/0x10
[  503.060015][   T29]  ? __switch_to+0xc7d/0x1450
[  503.060038][   T29]  ? __pfx_kthread+0x10/0x10
[  503.060058][   T29]  ret_from_fork_asm+0x1a/0x30
[  503.060089][   T29]  </TASK>
[  503.060096][   T29] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  503.248594][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  503.279314][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  508.278625][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  508.596479][ T7323] loop0: detected capacity change from 0 to 32768
[  508.609469][ T7323] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  508.617833][ T7323] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  508.647005][ T7323] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  508.660513][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  508.669327][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  508.721420][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 52ms
[  508.729043][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  508.734322][ T7323] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  508.983243][   T10] 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
[  508.999435][    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
[  509.015991][ T6506] 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
[  509.032928][ T5906] 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
[  509.049402][   T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
[  509.049427][   T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  509.049438][   T10] Workqueue: gfs2-delete/syz:syz delete_work_func
[  509.049465][   T10] Call Trace:
[  509.049471][   T10]  <TASK>
[  509.049479][   T10]  dump_stack_lvl+0xe8/0x150
[  509.049505][   T10]  gfs2_withdraw+0xc3/0x1b0
[  509.049535][   T10]  gfs2_meta_buffer+0x225/0x2e0
[  509.049566][   T10]  inode_go_instantiate+0xea/0x1220
[  509.049594][   T10]  ? do_raw_spin_lock+0x12b/0x2f0
[  509.049616][   T10]  ? __pfx_inode_go_instantiate+0x10/0x10
[  509.049637][   T10]  ? do_raw_spin_unlock+0xf5/0x210
[  509.049660][   T10]  gfs2_instantiate+0x168/0x220
[  509.049682][   T10]  gfs2_inode_lookup+0x727/0xc50
[  509.049710][   T10]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  509.049734][   T10]  ? gfs2_lookup_by_inum+0x52/0x100
[  509.049752][   T10]  ? trace_hrtimer_start+0x82/0x230
[  509.049774][   T10]  ? __lock_acquire+0x6b5/0x2cf0
[  509.049804][   T10]  gfs2_lookup_by_inum+0x52/0x100
[  509.049826][   T10]  delete_work_func+0x311/0x4d0
[  509.049844][   T10]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  509.049865][   T10]  ? __pfx_delete_work_func+0x10/0x10
[  509.049897][   T10]  ? process_one_work+0x8bb/0x1780
[  509.049917][   T10]  process_one_work+0x9ab/0x1780
[  509.049958][   T10]  ? __pfx_process_one_work+0x10/0x10
[  509.049978][   T10]  ? do_raw_spin_lock+0x12b/0x2f0
[  509.050013][   T10]  worker_thread+0xba8/0x11e0
[  509.050037][   T10]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  509.050058][   T10]  ? __kthread_parkme+0x7a/0x1f0
[  509.050074][   T10]  ? __kthread_parkme+0x19c/0x1f0
[  509.050096][   T10]  kthread+0x388/0x470
[  509.050114][   T10]  ? __pfx_worker_thread+0x10/0x10
[  509.050128][   T10]  ? __pfx_kthread+0x10/0x10
[  509.050147][   T10]  ret_from_fork+0x51e/0xb90
[  509.050172][   T10]  ? __pfx_ret_from_fork+0x10/0x10
[  509.050192][   T10]  ? __switch_to+0xc7d/0x1450
[  509.050215][   T10]  ? __pfx_kthread+0x10/0x10
[  509.050235][   T10]  ret_from_fork_asm+0x1a/0x30
[  509.050274][   T10]  </TASK>
[  509.050311][   T10] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  509.064711][ T6496] loop0: writeback error on inode 9394, offset 5632000, sector 29880
[  509.082009][ T5906] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  509.588294][ T7330] loop0: detected capacity change from 0 to 32768
[  509.620042][ T7330] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  509.628410][ T7330] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  509.663803][ T7330] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  509.683821][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  509.690946][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  509.758203][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 67ms
[  509.766512][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  509.771775][ T7330] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  510.014739][ T5906] 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
[  510.032250][ T6506] 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
[  510.047894][    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
[  510.064333][ T6506] CPU: 0 UID: 0 PID: 6506 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full) 
[  510.064356][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  510.064366][ T6506] Workqueue: gfs2-delete/syz:syz delete_work_func
[  510.064390][ T6506] Call Trace:
[  510.064397][ T6506]  <TASK>
[  510.064405][ T6506]  dump_stack_lvl+0xe8/0x150
[  510.064430][ T6506]  gfs2_withdraw+0xc3/0x1b0
[  510.064448][ T6506]  gfs2_meta_buffer+0x225/0x2e0
[  510.064473][ T6506]  inode_go_instantiate+0xea/0x1220
[  510.064493][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  510.064512][ T6506]  ? __pfx_inode_go_instantiate+0x10/0x10
[  510.064530][ T6506]  ? do_raw_spin_unlock+0xf5/0x210
[  510.064550][ T6506]  gfs2_instantiate+0x168/0x220
[  510.064568][ T6506]  gfs2_inode_lookup+0x727/0xc50
[  510.064583][ T6506]  ? seqcount_lockdep_reader_access+0xd4/0x100
[  510.064609][ T6506]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  510.064631][ T6506]  ? gfs2_lookup_by_inum+0x52/0x100
[  510.064648][ T6506]  ? tick_program_event+0x8f/0x120
[  510.064669][ T6506]  ? __lock_acquire+0x6b5/0x2cf0
[  510.064695][ T6506]  gfs2_lookup_by_inum+0x52/0x100
[  510.064714][ T6506]  delete_work_func+0x311/0x4d0
[  510.064731][ T6506]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  510.064751][ T6506]  ? __pfx_delete_work_func+0x10/0x10
[  510.064780][ T6506]  ? process_one_work+0x8bb/0x1780
[  510.064799][ T6506]  process_one_work+0x9ab/0x1780
[  510.064838][ T6506]  ? __pfx_process_one_work+0x10/0x10
[  510.064857][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  510.064889][ T6506]  worker_thread+0xba8/0x11e0
[  510.064922][ T6506]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  510.064942][ T6506]  ? __kthread_parkme+0x7a/0x1f0
[  510.064958][ T6506]  ? __kthread_parkme+0x19c/0x1f0
[  510.064978][ T6506]  kthread+0x388/0x470
[  510.064995][ T6506]  ? __pfx_worker_thread+0x10/0x10
[  510.065007][ T6506]  ? __pfx_kthread+0x10/0x10
[  510.065022][ T6506]  ret_from_fork+0x51e/0xb90
[  510.065042][ T6506]  ? __pfx_ret_from_fork+0x10/0x10
[  510.065057][ T6506]  ? __switch_to+0xc7d/0x1450
[  510.065076][ T6506]  ? __pfx_kthread+0x10/0x10
[  510.065091][ T6506]  ret_from_fork_asm+0x1a/0x30
[  510.065115][ T6506]  </TASK>
[  510.065136][ T6506] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  510.283318][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  510.289877][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  510.326048][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  515.318868][ T5906] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  515.636677][ T7338] loop0: detected capacity change from 0 to 32768
[  515.651089][ T7338] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  515.671322][ T7338] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  515.699246][ T7338] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  515.711548][   T29] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  515.718870][   T29] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  515.783746][   T29] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 64ms
[  515.792234][   T29] gfs2: fsid=syz:syz.0: jid=0: Done
[  515.797615][ T7338] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  516.044285][    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
[  516.060642][ 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
[  516.077779][ T5906] 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
[  516.093900][ T6506] 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
[  516.109426][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  516.109448][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  516.109459][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  516.109485][    T9] Call Trace:
[  516.109492][    T9]  <TASK>
[  516.109499][    T9]  dump_stack_lvl+0xe8/0x150
[  516.109525][    T9]  gfs2_withdraw+0xc3/0x1b0
[  516.109546][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  516.109572][    T9]  inode_go_instantiate+0xea/0x1220
[  516.109593][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  516.109615][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  516.109637][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  516.109660][    T9]  gfs2_instantiate+0x168/0x220
[  516.109680][    T9]  gfs2_inode_lookup+0x727/0xc50
[  516.109708][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  516.109733][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  516.109750][    T9]  ? trace_hrtimer_start+0x82/0x230
[  516.109772][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  516.109801][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  516.109823][    T9]  delete_work_func+0x311/0x4d0
[  516.109841][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  516.109863][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  516.109906][    T9]  ? process_one_work+0x8bb/0x1780
[  516.109928][    T9]  process_one_work+0x9ab/0x1780
[  516.109968][    T9]  ? __pfx_process_one_work+0x10/0x10
[  516.109987][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  516.110021][    T9]  worker_thread+0xba8/0x11e0
[  516.110061][    T9]  kthread+0x388/0x470
[  516.110080][    T9]  ? __pfx_worker_thread+0x10/0x10
[  516.110094][    T9]  ? __pfx_kthread+0x10/0x10
[  516.110113][    T9]  ret_from_fork+0x51e/0xb90
[  516.110137][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  516.110157][    T9]  ? __switch_to+0xc7d/0x1450
[  516.110181][    T9]  ? __pfx_kthread+0x10/0x10
[  516.110200][    T9]  ret_from_fork_asm+0x1a/0x30
[  516.110232][    T9]  </TASK>
[  516.110238][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  516.143303][   T29] loop0: writeback error on inode 9394, offset 2688000, sector 24084
[  516.158135][ T6506] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  516.636785][ T7347] loop0: detected capacity change from 0 to 32768
[  516.659692][ T7347] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  516.670096][ T7347] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  516.698450][ T7347] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  516.709703][ T6506] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  516.719327][ T6506] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  516.787256][ T6506] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 67ms
[  516.794851][ T6506] gfs2: fsid=syz:syz.0: jid=0: Done
[  516.800171][ T7347] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  517.076349][ T5888] 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
[  517.091861][ T5935] 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
[  517.109599][ T6496] 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
[  517.126443][ T5888] CPU: 1 UID: 0 PID: 5888 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  517.126467][ T5888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  517.126478][ T5888] Workqueue: gfs2-delete/syz:syz delete_work_func
[  517.126505][ T5888] Call Trace:
[  517.126512][ T5888]  <TASK>
[  517.126520][ T5888]  dump_stack_lvl+0xe8/0x150
[  517.126545][ T5888]  gfs2_withdraw+0xc3/0x1b0
[  517.126564][ T5888]  gfs2_meta_buffer+0x225/0x2e0
[  517.126598][ T5888]  inode_go_instantiate+0xea/0x1220
[  517.126618][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  517.126647][ T5888]  ? __pfx_inode_go_instantiate+0x10/0x10
[  517.126668][ T5888]  ? do_raw_spin_unlock+0xf5/0x210
[  517.126688][ T5888]  gfs2_instantiate+0x168/0x220
[  517.126707][ T5888]  gfs2_inode_lookup+0x727/0xc50
[  517.126731][ T5888]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  517.126756][ T5888]  ? gfs2_lookup_by_inum+0x52/0x100
[  517.126774][ T5888]  ? trace_hrtimer_start+0x82/0x230
[  517.126795][ T5888]  ? __lock_acquire+0x6b5/0x2cf0
[  517.126824][ T5888]  gfs2_lookup_by_inum+0x52/0x100
[  517.126845][ T5888]  delete_work_func+0x311/0x4d0
[  517.126863][ T5888]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  517.126886][ T5888]  ? __pfx_delete_work_func+0x10/0x10
[  517.126918][ T5888]  ? process_one_work+0x8bb/0x1780
[  517.126940][ T5888]  process_one_work+0x9ab/0x1780
[  517.126983][ T5888]  ? __pfx_process_one_work+0x10/0x10
[  517.127003][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  517.127037][ T5888]  worker_thread+0xba8/0x11e0
[  517.127078][ T5888]  kthread+0x388/0x470
[  517.127095][ T5888]  ? __pfx_worker_thread+0x10/0x10
[  517.127109][ T5888]  ? __pfx_kthread+0x10/0x10
[  517.127126][ T5888]  ret_from_fork+0x51e/0xb90
[  517.127149][ T5888]  ? __pfx_ret_from_fork+0x10/0x10
[  517.127169][ T5888]  ? __switch_to+0xc7d/0x1450
[  517.127201][ T5888]  ? __pfx_kthread+0x10/0x10
[  517.127220][ T5888]  ret_from_fork_asm+0x1a/0x30
[  517.127252][ T5888]  </TASK>
[  517.127268][ T5888] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  517.321604][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  517.327900][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  517.349715][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  522.359259][ T1222] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  522.676792][ T7356] loop0: detected capacity change from 0 to 32768
[  522.701787][ T7356] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  522.711010][ T7356] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  522.741568][ T7356] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  522.754429][ T6506] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  522.761761][ T6506] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  522.827073][ T6506] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 65ms
[  522.834660][ T6506] gfs2: fsid=syz:syz.0: jid=0: Done
[  522.840018][ T7356] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  523.083736][ T1222] 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
[  523.109793][ T5935] 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
[  523.125321][ T6496] 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
[  523.141482][ T5888] 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
[  523.157060][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  523.157083][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  523.157093][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  523.157119][ T1222] Call Trace:
[  523.157127][ T1222]  <TASK>
[  523.157134][ T1222]  dump_stack_lvl+0xe8/0x150
[  523.157159][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  523.157178][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  523.157204][ T1222]  inode_go_instantiate+0xea/0x1220
[  523.157225][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  523.157247][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  523.157269][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  523.157293][ T1222]  gfs2_instantiate+0x168/0x220
[  523.157314][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  523.157341][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  523.157361][ T1222]  ? check_path+0x21/0x40
[  523.157380][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  523.157398][ T1222]  ? add_lock_to_list+0xc7/0x100
[  523.157417][ T1222]  ? lockdep_unlock+0x5d/0xd0
[  523.157436][ T1222]  ? __lock_acquire+0x146e/0x2cf0
[  523.157465][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  523.157487][ T1222]  delete_work_func+0x311/0x4d0
[  523.157511][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  523.157544][ T1222]  ? process_one_work+0x8bb/0x1780
[  523.157564][ T1222]  process_one_work+0x9ab/0x1780
[  523.157605][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  523.157625][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  523.157659][ T1222]  worker_thread+0xba8/0x11e0
[  523.157683][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  523.157713][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  523.157729][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  523.157752][ T1222]  kthread+0x388/0x470
[  523.157770][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  523.157784][ T1222]  ? __pfx_kthread+0x10/0x10
[  523.157803][ T1222]  ret_from_fork+0x51e/0xb90
[  523.157828][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  523.157848][ T1222]  ? __switch_to+0xc7d/0x1450
[  523.157877][ T1222]  ? __pfx_kthread+0x10/0x10
[  523.157897][ T1222]  ret_from_fork_asm+0x1a/0x30
[  523.157929][ T1222]  </TASK>
[  523.157936][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  523.169947][ T6506] loop0: writeback error on inode 9394, offset 6784000, sector 32150
[  523.187743][ T5888] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  523.735578][ T7363] loop0: detected capacity change from 0 to 32768
[  523.752142][ T7363] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  523.766328][ T7363] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  523.802821][ T7363] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  523.812429][ T5888] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  523.819870][ T5888] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  523.889095][ T5888] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 69ms
[  523.896929][ T5888] gfs2: fsid=syz:syz.0: jid=0: Done
[  523.902339][ T7363] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  524.146456][ 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
[  524.162800][ T5906] 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
[  524.179348][ T6488] CPU: 0 UID: 0 PID: 6488 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
[  524.179373][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  524.179384][ T6488] Workqueue: gfs2-delete/syz:syz delete_work_func
[  524.179410][ T6488] Call Trace:
[  524.179416][ T6488]  <TASK>
[  524.179424][ T6488]  dump_stack_lvl+0xe8/0x150
[  524.179451][ T6488]  gfs2_withdraw+0xc3/0x1b0
[  524.179471][ T6488]  gfs2_meta_buffer+0x225/0x2e0
[  524.179498][ T6488]  inode_go_instantiate+0xea/0x1220
[  524.179519][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  524.179542][ T6488]  ? __pfx_inode_go_instantiate+0x10/0x10
[  524.179571][ T6488]  ? do_raw_spin_unlock+0xf5/0x210
[  524.179597][ T6488]  gfs2_instantiate+0x168/0x220
[  524.179618][ T6488]  gfs2_inode_lookup+0x727/0xc50
[  524.179644][ T6488]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  524.179666][ T6488]  ? gfs2_lookup_by_inum+0x52/0x100
[  524.179682][ T6488]  ? trace_hrtimer_start+0x82/0x230
[  524.179701][ T6488]  ? __lock_acquire+0x6b5/0x2cf0
[  524.179727][ T6488]  gfs2_lookup_by_inum+0x52/0x100
[  524.179749][ T6488]  delete_work_func+0x311/0x4d0
[  524.179767][ T6488]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  524.179790][ T6488]  ? __pfx_delete_work_func+0x10/0x10
[  524.179822][ T6488]  ? process_one_work+0x8bb/0x1780
[  524.179843][ T6488]  process_one_work+0x9ab/0x1780
[  524.179884][ T6488]  ? __pfx_process_one_work+0x10/0x10
[  524.179903][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  524.179936][ T6488]  worker_thread+0xba8/0x11e0
[  524.179974][ T6488]  kthread+0x388/0x470
[  524.179992][ T6488]  ? __pfx_worker_thread+0x10/0x10
[  524.180004][ T6488]  ? __pfx_kthread+0x10/0x10
[  524.180023][ T6488]  ret_from_fork+0x51e/0xb90
[  524.180048][ T6488]  ? __pfx_ret_from_fork+0x10/0x10
[  524.180067][ T6488]  ? __switch_to+0xc7d/0x1450
[  524.180091][ T6488]  ? __pfx_kthread+0x10/0x10
[  524.180110][ T6488]  ret_from_fork_asm+0x1a/0x30
[  524.180141][ T6488]  </TASK>
[  524.180281][ T6488] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  524.376132][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  524.381202][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  524.737253][ T7370] loop0: detected capacity change from 0 to 32768
[  524.753050][ T7370] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  524.763684][ T7370] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  524.792320][ T7370] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  524.802511][ T5888] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  524.812713][ T5888] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  524.894069][ T5888] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 81ms
[  524.903038][ T5888] gfs2: fsid=syz:syz.0: jid=0: Done
[  524.908534][ T7370] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  525.146854][ T1222] 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
[  525.163436][ T5935] 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
[  525.179834][ T5888] 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
[  525.195242][ T6496] 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
[  525.210727][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  525.210750][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  525.210760][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  525.210785][ T1222] Call Trace:
[  525.210792][ T1222]  <TASK>
[  525.210799][ T1222]  dump_stack_lvl+0xe8/0x150
[  525.210825][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  525.210844][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  525.210872][ T1222]  inode_go_instantiate+0xea/0x1220
[  525.210893][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  525.210915][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  525.210935][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  525.210958][ T1222]  gfs2_instantiate+0x168/0x220
[  525.210978][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  525.211003][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  525.211025][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  525.211041][ T1222]  ? trace_hrtimer_start+0x82/0x230
[  525.211060][ T1222]  ? __lock_acquire+0x6b5/0x2cf0
[  525.211089][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  525.211110][ T1222]  delete_work_func+0x311/0x4d0
[  525.211128][ T1222]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  525.211150][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  525.211181][ T1222]  ? process_one_work+0x8bb/0x1780
[  525.211201][ T1222]  process_one_work+0x9ab/0x1780
[  525.211242][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  525.211263][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  525.211297][ T1222]  worker_thread+0xba8/0x11e0
[  525.211320][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  525.211340][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  525.211364][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  525.211387][ T1222]  kthread+0x388/0x470
[  525.211405][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  525.211419][ T1222]  ? __pfx_kthread+0x10/0x10
[  525.211438][ T1222]  ret_from_fork+0x51e/0xb90
[  525.211463][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  525.211483][ T1222]  ? __switch_to+0xc7d/0x1450
[  525.211507][ T1222]  ? __pfx_kthread+0x10/0x10
[  525.211527][ T1222]  ret_from_fork_asm+0x1a/0x30
[  525.211558][ T1222]  </TASK>
[  525.211565][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  525.279305][ T6488] loop0: writeback error on inode 9394, offset 1792000, sector 22320
[  525.291229][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  525.752234][ T7377] loop0: detected capacity change from 0 to 32768
[  525.767779][ T7377] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  525.781551][ T7377] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  525.817394][ T7377] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 1ms
[  525.828074][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  525.835038][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  525.895040][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 59ms
[  525.902799][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  525.908088][ T7377] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  526.150350][ T5888] 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
[  526.150377][ 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
[  526.150409][ T6488] CPU: 0 UID: 0 PID: 6488 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
[  526.150425][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  526.150435][ T6488] Workqueue: gfs2-delete/syz:syz delete_work_func
[  526.150457][ T6488] Call Trace:
[  526.150463][ T6488]  <TASK>
[  526.150470][ T6488]  dump_stack_lvl+0xe8/0x150
[  526.150494][ T6488]  gfs2_withdraw+0xc3/0x1b0
[  526.150514][ T6488]  gfs2_meta_buffer+0x225/0x2e0
[  526.150543][ T6488]  inode_go_instantiate+0xea/0x1220
[  526.150564][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  526.150585][ T6488]  ? __pfx_inode_go_instantiate+0x10/0x10
[  526.150611][ T6488]  ? do_raw_spin_unlock+0xf5/0x210
[  526.150633][ T6488]  gfs2_instantiate+0x168/0x220
[  526.150653][ T6488]  gfs2_inode_lookup+0x727/0xc50
[  526.150679][ T6488]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  526.150703][ T6488]  ? gfs2_lookup_by_inum+0x52/0x100
[  526.150719][ T6488]  ? trace_hrtimer_start+0x82/0x230
[  526.150748][ T6488]  ? __lock_acquire+0x6b5/0x2cf0
[  526.150776][ T6488]  gfs2_lookup_by_inum+0x52/0x100
[  526.150797][ T6488]  delete_work_func+0x311/0x4d0
[  526.150814][ T6488]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  526.150835][ T6488]  ? __pfx_delete_work_func+0x10/0x10
[  526.150865][ T6488]  ? process_one_work+0x8bb/0x1780
[  526.150887][ T6488]  process_one_work+0x9ab/0x1780
[  526.150927][ T6488]  ? __pfx_process_one_work+0x10/0x10
[  526.150946][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  526.150979][ T6488]  worker_thread+0xba8/0x11e0
[  526.151016][ T6488]  kthread+0x388/0x470
[  526.151034][ T6488]  ? __pfx_worker_thread+0x10/0x10
[  526.151047][ T6488]  ? __pfx_kthread+0x10/0x10
[  526.151065][ T6488]  ret_from_fork+0x51e/0xb90
[  526.151089][ T6488]  ? __pfx_ret_from_fork+0x10/0x10
[  526.151108][ T6488]  ? __switch_to+0xc7d/0x1450
[  526.151130][ T6488]  ? __pfx_kthread+0x10/0x10
[  526.151148][ T6488]  ret_from_fork_asm+0x1a/0x30
[  526.151178][ T6488]  </TASK>
[  526.151195][ T6488] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  526.166022][ T7377] gfs2: fsid=syz:syz.0: dirty_inode: gfs2_trans_begin -30
[  526.383053][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  526.417756][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  531.398572][    T9] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  531.718790][ T7385] loop0: detected capacity change from 0 to 32768
[  531.731875][ T7385] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  531.743712][ T7385] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  531.773858][ T7385] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  531.784266][ T1222] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  531.792349][ T1222] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  531.837166][ T1222] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 44ms
[  531.844706][ T1222] gfs2: fsid=syz:syz.0: jid=0: Done
[  531.850271][ T7385] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  532.092288][ T1222] 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
[  532.117560][ T5935] 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
[  532.136385][ T6496] 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
[  532.154309][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  532.154335][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  532.154346][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  532.154374][ T5935] Call Trace:
[  532.154381][ T5935]  <TASK>
[  532.154388][ T5935]  dump_stack_lvl+0xe8/0x150
[  532.154415][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  532.154435][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  532.154462][ T5935]  inode_go_instantiate+0xea/0x1220
[  532.154483][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  532.154506][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  532.154527][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  532.154550][ T5935]  gfs2_instantiate+0x168/0x220
[  532.154571][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  532.154597][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  532.154621][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  532.154639][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  532.154660][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  532.154688][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  532.154709][ T5935]  delete_work_func+0x311/0x4d0
[  532.154728][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  532.154750][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  532.154780][ T5935]  ? process_one_work+0x8bb/0x1780
[  532.154802][ T5935]  process_one_work+0x9ab/0x1780
[  532.154844][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  532.154863][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  532.154897][ T5935]  worker_thread+0xba8/0x11e0
[  532.154922][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  532.154941][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  532.154957][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  532.154976][ T5935]  kthread+0x388/0x470
[  532.154994][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  532.155007][ T5935]  ? __pfx_kthread+0x10/0x10
[  532.155026][ T5935]  ret_from_fork+0x51e/0xb90
[  532.155049][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  532.155067][ T5935]  ? __switch_to+0xc7d/0x1450
[  532.155090][ T5935]  ? __pfx_kthread+0x10/0x10
[  532.155108][ T5935]  ret_from_fork_asm+0x1a/0x30
[  532.155140][ T5935]  </TASK>
[  532.155147][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  532.177404][    T9] loop0: writeback error on inode 9394, offset 4736000, sector 28116
[  532.200005][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  532.694650][ T7393] loop0: detected capacity change from 0 to 32768
[  532.714765][ T7393] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  532.723924][ T7393] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  532.753203][ T7393] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  532.766355][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  532.773198][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  532.835417][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 62ms
[  532.843086][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  532.848508][ T7393] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  533.091930][ T6496] 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
[  533.108137][ T5888] 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
[  533.124574][ T1222] 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
[  533.140858][ T5888] CPU: 1 UID: 0 PID: 5888 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  533.140879][ T5888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  533.140889][ T5888] Workqueue: gfs2-delete/syz:syz delete_work_func
[  533.140914][ T5888] Call Trace:
[  533.140920][ T5888]  <TASK>
[  533.140927][ T5888]  dump_stack_lvl+0xe8/0x150
[  533.140950][ T5888]  gfs2_withdraw+0xc3/0x1b0
[  533.140968][ T5888]  gfs2_meta_buffer+0x225/0x2e0
[  533.140992][ T5888]  inode_go_instantiate+0xea/0x1220
[  533.141010][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  533.141033][ T5888]  ? __pfx_inode_go_instantiate+0x10/0x10
[  533.141064][ T5888]  ? do_raw_spin_unlock+0xf5/0x210
[  533.141087][ T5888]  gfs2_instantiate+0x168/0x220
[  533.141108][ T5888]  gfs2_inode_lookup+0x727/0xc50
[  533.141136][ T5888]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  533.141161][ T5888]  ? gfs2_lookup_by_inum+0x52/0x100
[  533.141179][ T5888]  ? trace_hrtimer_start+0x82/0x230
[  533.141201][ T5888]  ? __lock_acquire+0x6b5/0x2cf0
[  533.141229][ T5888]  gfs2_lookup_by_inum+0x52/0x100
[  533.141250][ T5888]  delete_work_func+0x311/0x4d0
[  533.141268][ T5888]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  533.141290][ T5888]  ? __pfx_delete_work_func+0x10/0x10
[  533.141323][ T5888]  ? process_one_work+0x8bb/0x1780
[  533.141344][ T5888]  process_one_work+0x9ab/0x1780
[  533.141386][ T5888]  ? __pfx_process_one_work+0x10/0x10
[  533.141406][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  533.141440][ T5888]  worker_thread+0xba8/0x11e0
[  533.141483][ T5888]  kthread+0x388/0x470
[  533.141502][ T5888]  ? __pfx_worker_thread+0x10/0x10
[  533.141515][ T5888]  ? __pfx_kthread+0x10/0x10
[  533.141535][ T5888]  ret_from_fork+0x51e/0xb90
[  533.141559][ T5888]  ? __pfx_ret_from_fork+0x10/0x10
[  533.141578][ T5888]  ? __switch_to+0xc7d/0x1450
[  533.141602][ T5888]  ? __pfx_kthread+0x10/0x10
[  533.141621][ T5888]  ret_from_fork_asm+0x1a/0x30
[  533.141652][ T5888]  </TASK>
[  533.141670][ T5888] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  533.336680][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  533.342882][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  533.373843][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  538.358707][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  538.671710][ T7401] loop0: detected capacity change from 0 to 32768
[  538.686799][ T7401] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  538.706200][ T7401] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  538.741429][ T7401] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  538.751426][ T5888] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  538.760103][ T5888] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  538.827946][ T5888] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 67ms
[  538.835475][ T5888] gfs2: fsid=syz:syz.0: jid=0: Done
[  538.840803][ T7401] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  539.089429][ T5888] 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
[  539.108465][ T5935] 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
[  539.125262][ T1222] 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
[  539.140997][ T6496] 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
[  539.158823][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  539.158848][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  539.158859][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  539.158886][ T5935] Call Trace:
[  539.158893][ T5935]  <TASK>
[  539.158900][ T5935]  dump_stack_lvl+0xe8/0x150
[  539.158924][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  539.158945][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  539.158973][ T5935]  inode_go_instantiate+0xea/0x1220
[  539.158994][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  539.159021][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  539.159041][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  539.159062][ T5935]  gfs2_instantiate+0x168/0x220
[  539.159083][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  539.159110][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  539.159135][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  539.159153][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  539.159175][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  539.159204][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  539.159225][ T5935]  delete_work_func+0x311/0x4d0
[  539.159243][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  539.159263][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  539.159292][ T5935]  ? process_one_work+0x8bb/0x1780
[  539.159314][ T5935]  process_one_work+0x9ab/0x1780
[  539.159363][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  539.159381][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  539.159413][ T5935]  worker_thread+0xba8/0x11e0
[  539.159439][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  539.159455][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  539.159469][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  539.159485][ T5935]  kthread+0x388/0x470
[  539.159499][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  539.159510][ T5935]  ? __pfx_kthread+0x10/0x10
[  539.159526][ T5935]  ret_from_fork+0x51e/0xb90
[  539.159546][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  539.159562][ T5935]  ? __switch_to+0xc7d/0x1450
[  539.159581][ T5935]  ? __pfx_kthread+0x10/0x10
[  539.159597][ T5935]  ret_from_fork_asm+0x1a/0x30
[  539.159621][ T5935]  </TASK>
[  539.159641][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  539.194327][ T6488] loop0: writeback error on inode 9394, offset 5120000, sector 28872
[  539.207544][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  539.697852][ T7409] loop0: detected capacity change from 0 to 32768
[  539.716584][ T7409] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  539.725640][ T7409] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  539.767548][ T7409] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  539.781165][    T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  539.788290][    T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  539.848582][    T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 60ms
[  539.856176][    T9] gfs2: fsid=syz:syz.0: jid=0: Done
[  539.861547][ T7409] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  540.108067][ T6506] 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
[  540.123809][ T5906] 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
[  540.140510][ T6506] CPU: 0 UID: 0 PID: 6506 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full) 
[  540.140533][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  540.140544][ T6506] Workqueue: gfs2-delete/syz:syz delete_work_func
[  540.140570][ T6506] Call Trace:
[  540.140577][ T6506]  <TASK>
[  540.140584][ T6506]  dump_stack_lvl+0xe8/0x150
[  540.140610][ T6506]  gfs2_withdraw+0xc3/0x1b0
[  540.140628][ T6506]  gfs2_meta_buffer+0x225/0x2e0
[  540.140657][ T6506]  inode_go_instantiate+0xea/0x1220
[  540.140674][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  540.140696][ T6506]  ? __pfx_inode_go_instantiate+0x10/0x10
[  540.140716][ T6506]  ? do_raw_spin_unlock+0xf5/0x210
[  540.140740][ T6506]  gfs2_instantiate+0x168/0x220
[  540.140757][ T6506]  gfs2_inode_lookup+0x727/0xc50
[  540.140774][ T6506]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  540.140788][ T6506]  ? gfs2_lookup_by_inum+0x52/0x100
[  540.140807][ T6506]  ? __lock_acquire+0x6b5/0x2cf0
[  540.140836][ T6506]  gfs2_lookup_by_inum+0x52/0x100
[  540.140857][ T6506]  delete_work_func+0x311/0x4d0
[  540.140875][ T6506]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  540.140896][ T6506]  ? __pfx_delete_work_func+0x10/0x10
[  540.140922][ T6506]  ? process_one_work+0x8bb/0x1780
[  540.140942][ T6506]  process_one_work+0x9ab/0x1780
[  540.140978][ T6506]  ? __pfx_process_one_work+0x10/0x10
[  540.141005][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  540.141035][ T6506]  worker_thread+0xba8/0x11e0
[  540.141058][ T6506]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  540.141076][ T6506]  ? __kthread_parkme+0x7a/0x1f0
[  540.141093][ T6506]  ? __kthread_parkme+0x19c/0x1f0
[  540.141112][ T6506]  kthread+0x388/0x470
[  540.141128][ T6506]  ? __pfx_worker_thread+0x10/0x10
[  540.141140][ T6506]  ? __pfx_kthread+0x10/0x10
[  540.141157][ T6506]  ret_from_fork+0x51e/0xb90
[  540.141181][ T6506]  ? __pfx_ret_from_fork+0x10/0x10
[  540.141200][ T6506]  ? __switch_to+0xc7d/0x1450
[  540.141223][ T6506]  ? __pfx_kthread+0x10/0x10
[  540.141242][ T6506]  ret_from_fork_asm+0x1a/0x30
[  540.141273][ T6506]  </TASK>
[  540.141293][ T6506] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  540.347211][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  540.353694][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  540.392100][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  545.398558][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  545.722581][ T7417] loop0: detected capacity change from 0 to 32768
[  545.742368][ T7417] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  545.751190][ T7417] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  545.793156][ T7417] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  545.803017][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  545.810173][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  545.879072][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 68ms
[  545.886695][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  545.891966][ T7417] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  546.133963][ T6496] 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
[  546.150379][ T6496] CPU: 1 UID: 0 PID: 6496 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  546.150403][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  546.150413][ T6496] Workqueue: gfs2-delete/syz:syz delete_work_func
[  546.150439][ T6496] Call Trace:
[  546.150446][ T6496]  <TASK>
[  546.150455][ T6496]  dump_stack_lvl+0xe8/0x150
[  546.150479][ T6496]  gfs2_withdraw+0xc3/0x1b0
[  546.150499][ T6496]  gfs2_meta_buffer+0x225/0x2e0
[  546.150525][ T6496]  inode_go_instantiate+0xea/0x1220
[  546.150546][ T6496]  ? do_raw_spin_lock+0x12b/0x2f0
[  546.150569][ T6496]  ? __pfx_inode_go_instantiate+0x10/0x10
[  546.150590][ T6496]  ? do_raw_spin_unlock+0xf5/0x210
[  546.150619][ T6496]  gfs2_instantiate+0x168/0x220
[  546.150639][ T6496]  gfs2_inode_lookup+0x727/0xc50
[  546.150656][ T6496]  ? ktime_get+0x45/0x220
[  546.150682][ T6496]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  546.150698][ T6496]  ? clockevents_program_event+0x3ba/0x4b0
[  546.150719][ T6496]  ? gfs2_lookup_by_inum+0x52/0x100
[  546.150749][ T6496]  gfs2_lookup_by_inum+0x52/0x100
[  546.150771][ T6496]  delete_work_func+0x311/0x4d0
[  546.150797][ T6496]  ? __pfx_delete_work_func+0x10/0x10
[  546.150830][ T6496]  ? lock_acquire+0x20b/0x2e0
[  546.150857][ T6496]  ? process_one_work+0x8bb/0x1780
[  546.150880][ T6496]  process_one_work+0x9ab/0x1780
[  546.150920][ T6496]  ? __pfx_process_one_work+0x10/0x10
[  546.150941][ T6496]  ? do_raw_spin_lock+0x12b/0x2f0
[  546.150979][ T6496]  worker_thread+0xba8/0x11e0
[  546.151005][ T6496]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  546.151026][ T6496]  ? __kthread_parkme+0x7a/0x1f0
[  546.151043][ T6496]  ? __kthread_parkme+0x19c/0x1f0
[  546.151066][ T6496]  kthread+0x388/0x470
[  546.151085][ T6496]  ? __pfx_worker_thread+0x10/0x10
[  546.151099][ T6496]  ? __pfx_kthread+0x10/0x10
[  546.151119][ T6496]  ret_from_fork+0x51e/0xb90
[  546.151144][ T6496]  ? __pfx_ret_from_fork+0x10/0x10
[  546.151165][ T6496]  ? __switch_to+0xc7d/0x1450
[  546.151188][ T6496]  ? __pfx_kthread+0x10/0x10
[  546.151207][ T6496]  ret_from_fork_asm+0x1a/0x30
[  546.151239][ T6496]  </TASK>
[  546.151257][ T6496] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  546.360300][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  546.366861][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  546.398386][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  551.400029][ T5888] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  551.723657][ T7426] loop0: detected capacity change from 0 to 32768
[  551.740078][ T7426] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  551.757498][ T7426] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  551.795139][ T7426] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  551.810830][ T5888] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  551.817797][ T5888] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  551.878634][ T5888] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 60ms
[  551.886269][ T5888] gfs2: fsid=syz:syz.0: jid=0: Done
[  551.891626][ T7426] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  552.131795][ T5888] 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
[  552.148803][    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
[  552.164399][ T5888] CPU: 1 UID: 0 PID: 5888 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  552.164422][ T5888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  552.164433][ T5888] Workqueue: gfs2-delete/syz:syz delete_work_func
[  552.164458][ T5888] Call Trace:
[  552.164465][ T5888]  <TASK>
[  552.164473][ T5888]  dump_stack_lvl+0xe8/0x150
[  552.164499][ T5888]  gfs2_withdraw+0xc3/0x1b0
[  552.164521][ T5888]  gfs2_meta_buffer+0x225/0x2e0
[  552.164550][ T5888]  inode_go_instantiate+0xea/0x1220
[  552.164572][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  552.164595][ T5888]  ? __pfx_inode_go_instantiate+0x10/0x10
[  552.164616][ T5888]  ? do_raw_spin_unlock+0xf5/0x210
[  552.164640][ T5888]  gfs2_instantiate+0x168/0x220
[  552.164662][ T5888]  gfs2_inode_lookup+0x727/0xc50
[  552.164690][ T5888]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  552.164710][ T5888]  ? check_path+0x21/0x40
[  552.164730][ T5888]  ? gfs2_lookup_by_inum+0x52/0x100
[  552.164749][ T5888]  ? add_lock_to_list+0xc7/0x100
[  552.164768][ T5888]  ? lockdep_unlock+0x5d/0xd0
[  552.164788][ T5888]  ? __lock_acquire+0x146e/0x2cf0
[  552.164818][ T5888]  gfs2_lookup_by_inum+0x52/0x100
[  552.164841][ T5888]  delete_work_func+0x311/0x4d0
[  552.164865][ T5888]  ? __pfx_delete_work_func+0x10/0x10
[  552.164899][ T5888]  ? process_one_work+0x8bb/0x1780
[  552.164920][ T5888]  process_one_work+0x9ab/0x1780
[  552.164963][ T5888]  ? __pfx_process_one_work+0x10/0x10
[  552.164984][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  552.165019][ T5888]  worker_thread+0xba8/0x11e0
[  552.165059][ T5888]  kthread+0x388/0x470
[  552.165079][ T5888]  ? __pfx_worker_thread+0x10/0x10
[  552.165093][ T5888]  ? __pfx_kthread+0x10/0x10
[  552.165120][ T5888]  ret_from_fork+0x51e/0xb90
[  552.165146][ T5888]  ? __pfx_ret_from_fork+0x10/0x10
[  552.165167][ T5888]  ? __switch_to+0xc7d/0x1450
[  552.165190][ T5888]  ? __pfx_kthread+0x10/0x10
[  552.165209][ T5888]  ret_from_fork_asm+0x1a/0x30
[  552.165237][ T5888]  </TASK>
[  552.165503][ T5888] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  552.213059][    T9] loop0: writeback error on inode 9394, offset 768000, sector 20304
[  552.364996][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  552.370049][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  552.730483][ T7434] loop0: detected capacity change from 0 to 32768
[  552.754258][ T7434] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  552.762726][ T7434] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  552.794827][ T7434] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  552.804556][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  552.812343][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  552.857181][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 44ms
[  552.864768][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  552.870120][ T7434] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  553.120981][    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
[  553.138321][ T1222] 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
[  553.141839][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  553.141863][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  553.141874][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  553.141902][    T9] Call Trace:
[  553.141909][    T9]  <TASK>
[  553.141918][    T9]  dump_stack_lvl+0xe8/0x150
[  553.141944][    T9]  gfs2_withdraw+0xc3/0x1b0
[  553.141965][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  553.141999][    T9]  inode_go_instantiate+0xea/0x1220
[  553.142021][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  553.142044][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  553.142065][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  553.142088][    T9]  gfs2_instantiate+0x168/0x220
[  553.142109][    T9]  gfs2_inode_lookup+0x727/0xc50
[  553.142137][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  553.142156][    T9]  ? check_path+0x21/0x40
[  553.142175][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  553.142193][    T9]  ? add_lock_to_list+0xc7/0x100
[  553.142216][    T9]  ? lockdep_unlock+0x5d/0xd0
[  553.142235][    T9]  ? __lock_acquire+0x146e/0x2cf0
[  553.142263][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  553.142285][    T9]  delete_work_func+0x311/0x4d0
[  553.142308][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  553.142340][    T9]  ? process_one_work+0x8bb/0x1780
[  553.142361][    T9]  process_one_work+0x9ab/0x1780
[  553.142402][    T9]  ? __pfx_process_one_work+0x10/0x10
[  553.142421][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  553.142454][    T9]  worker_thread+0xba8/0x11e0
[  553.142492][    T9]  kthread+0x388/0x470
[  553.142510][    T9]  ? __pfx_worker_thread+0x10/0x10
[  553.142524][    T9]  ? __pfx_kthread+0x10/0x10
[  553.142544][    T9]  ret_from_fork+0x51e/0xb90
[  553.142568][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  553.142588][    T9]  ? __switch_to+0xc7d/0x1450
[  553.142610][    T9]  ? __pfx_kthread+0x10/0x10
[  553.142629][    T9]  ret_from_fork_asm+0x1a/0x30
[  553.142660][    T9]  </TASK>
[  553.142692][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  553.196986][ T1222] loop0: writeback error on inode 9394, offset 1792000, sector 22320
[  553.222202][ T6506] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  553.676784][ T7441] loop0: detected capacity change from 0 to 32768
[  553.699219][ T7441] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  553.708059][ T7441] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  553.744502][ T7441] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  553.753443][ T6506] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  553.761987][ T6506] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  553.803559][ T6506] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 41ms
[  553.811312][ T6506] gfs2: fsid=syz:syz.0: jid=0: Done
[  553.816682][ T7441] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  554.066716][ T1222] 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
[  554.087047][ T5935] 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
[  554.102756][ T5888] 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
[  554.118325][ T6496] 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
[  554.134039][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  554.134074][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  554.134084][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  554.134111][ T5935] Call Trace:
[  554.134117][ T5935]  <TASK>
[  554.134123][ T5935]  dump_stack_lvl+0xe8/0x150
[  554.134145][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  554.134166][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  554.134187][ T5935]  inode_go_instantiate+0xea/0x1220
[  554.134203][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  554.134220][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  554.134237][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  554.134257][ T5935]  gfs2_instantiate+0x168/0x220
[  554.134278][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  554.134303][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  554.134326][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  554.134343][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  554.134364][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  554.134391][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  554.134412][ T5935]  delete_work_func+0x311/0x4d0
[  554.134430][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  554.134452][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  554.134483][ T5935]  ? process_one_work+0x8bb/0x1780
[  554.134503][ T5935]  process_one_work+0x9ab/0x1780
[  554.134542][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  554.134561][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  554.134596][ T5935]  worker_thread+0xba8/0x11e0
[  554.134621][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  554.134642][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  554.134660][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  554.134681][ T5935]  kthread+0x388/0x470
[  554.134700][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  554.134714][ T5935]  ? __pfx_kthread+0x10/0x10
[  554.134732][ T5935]  ret_from_fork+0x51e/0xb90
[  554.134757][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  554.134776][ T5935]  ? __switch_to+0xc7d/0x1450
[  554.134801][ T5935]  ? __pfx_kthread+0x10/0x10
[  554.134820][ T5935]  ret_from_fork_asm+0x1a/0x30
[  554.134852][ T5935]  </TASK>
[  554.134860][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  554.155217][ T6506] loop0: writeback error on inode 9394, offset 4736000, sector 28116
[  554.171237][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  554.672707][ T7448] loop0: detected capacity change from 0 to 32768
[  554.693527][ T7448] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  554.702664][ T7448] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  554.732765][ T7448] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  554.744398][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  554.751721][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  554.797749][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 46ms
[  554.805463][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  554.810767][ T7448] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  555.098885][ T5906] 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
[  555.116399][ 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
[  555.132921][    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
[  555.148934][ T5906] CPU: 0 UID: 0 PID: 5906 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
[  555.148967][ T5906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  555.148978][ T5906] Workqueue: gfs2-delete/syz:syz delete_work_func
[  555.149005][ T5906] Call Trace:
[  555.149013][ T5906]  <TASK>
[  555.149021][ T5906]  dump_stack_lvl+0xe8/0x150
[  555.149048][ T5906]  gfs2_withdraw+0xc3/0x1b0
[  555.149068][ T5906]  gfs2_meta_buffer+0x225/0x2e0
[  555.149096][ T5906]  inode_go_instantiate+0xea/0x1220
[  555.149117][ T5906]  ? do_raw_spin_lock+0x12b/0x2f0
[  555.149140][ T5906]  ? __pfx_inode_go_instantiate+0x10/0x10
[  555.149162][ T5906]  ? do_raw_spin_unlock+0xf5/0x210
[  555.149185][ T5906]  gfs2_instantiate+0x168/0x220
[  555.149207][ T5906]  gfs2_inode_lookup+0x727/0xc50
[  555.149234][ T5906]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  555.149259][ T5906]  ? gfs2_lookup_by_inum+0x52/0x100
[  555.149277][ T5906]  ? trace_hrtimer_start+0x82/0x230
[  555.149299][ T5906]  ? __lock_acquire+0x6b5/0x2cf0
[  555.149326][ T5906]  gfs2_lookup_by_inum+0x52/0x100
[  555.149348][ T5906]  delete_work_func+0x311/0x4d0
[  555.149366][ T5906]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  555.149389][ T5906]  ? __pfx_delete_work_func+0x10/0x10
[  555.149416][ T5906]  ? process_one_work+0x8bb/0x1780
[  555.149437][ T5906]  process_one_work+0x9ab/0x1780
[  555.149475][ T5906]  ? __pfx_process_one_work+0x10/0x10
[  555.149494][ T5906]  ? do_raw_spin_lock+0x12b/0x2f0
[  555.149526][ T5906]  worker_thread+0xba8/0x11e0
[  555.149563][ T5906]  kthread+0x388/0x470
[  555.149581][ T5906]  ? __pfx_worker_thread+0x10/0x10
[  555.149594][ T5906]  ? __pfx_kthread+0x10/0x10
[  555.149612][ T5906]  ret_from_fork+0x51e/0xb90
[  555.149635][ T5906]  ? __pfx_ret_from_fork+0x10/0x10
[  555.149652][ T5906]  ? __switch_to+0xc7d/0x1450
[  555.149671][ T5906]  ? __pfx_kthread+0x10/0x10
[  555.149690][ T5906]  ret_from_fork_asm+0x1a/0x30
[  555.149722][ T5906]  </TASK>
[  555.149730][ T5906] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  555.343771][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  555.350087][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  555.392791][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  560.359164][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  560.678105][ T7462] loop0: detected capacity change from 0 to 32768
[  560.689695][ T7462] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  560.700478][ T7462] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  560.728836][ T7462] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  560.738890][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  560.745820][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  560.789504][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 43ms
[  560.797075][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  560.802322][ T7462] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  561.052414][  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
[  561.068190][ T5906] 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
[  561.084885][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  561.084910][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  561.084922][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  561.084948][  T808] Call Trace:
[  561.084956][  T808]  <TASK>
[  561.084963][  T808]  dump_stack_lvl+0xe8/0x150
[  561.084993][  T808]  gfs2_withdraw+0xc3/0x1b0
[  561.085014][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  561.085038][  T808]  inode_go_instantiate+0xea/0x1220
[  561.085058][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  561.085081][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  561.085101][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  561.085124][  T808]  gfs2_instantiate+0x168/0x220
[  561.085144][  T808]  gfs2_inode_lookup+0x727/0xc50
[  561.085161][  T808]  ? seqcount_lockdep_reader_access+0xd4/0x100
[  561.085190][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  561.085215][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  561.085233][  T808]  ? tick_program_event+0x8f/0x120
[  561.085255][  T808]  ? __lock_acquire+0x6b5/0x2cf0
[  561.085284][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  561.085306][  T808]  delete_work_func+0x311/0x4d0
[  561.085325][  T808]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  561.085348][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  561.085382][  T808]  ? process_one_work+0x8bb/0x1780
[  561.085404][  T808]  process_one_work+0x9ab/0x1780
[  561.085453][  T808]  ? __pfx_process_one_work+0x10/0x10
[  561.085474][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  561.085508][  T808]  worker_thread+0xba8/0x11e0
[  561.085534][  T808]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  561.085556][  T808]  ? __kthread_parkme+0x7a/0x1f0
[  561.085573][  T808]  ? __kthread_parkme+0x19c/0x1f0
[  561.085596][  T808]  kthread+0x388/0x470
[  561.085616][  T808]  ? __pfx_worker_thread+0x10/0x10
[  561.085630][  T808]  ? __pfx_kthread+0x10/0x10
[  561.085650][  T808]  ret_from_fork+0x51e/0xb90
[  561.085676][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  561.085695][  T808]  ? __switch_to+0xc7d/0x1450
[  561.085720][  T808]  ? __pfx_kthread+0x10/0x10
[  561.085747][  T808]  ret_from_fork_asm+0x1a/0x30
[  561.085779][  T808]  </TASK>
[  561.114962][ T6496] loop0: writeback error on inode 9394, offset 3328000, sector 25344
[  561.116518][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  561.313561][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  561.318460][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  561.681188][ T7470] loop0: detected capacity change from 0 to 32768
[  561.694184][ T7470] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  561.703051][ T7470] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  561.732108][ T7470] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  561.745009][ T6496] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  561.752231][ T6496] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  561.794670][ T6496] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 42ms
[  561.802720][ T6496] gfs2: fsid=syz:syz.0: jid=0: Done
[  561.808232][ T7470] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  562.053028][  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
[  562.056873][ T1222] 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
[  562.068945][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  562.068966][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  562.068977][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  562.069007][  T808] Call Trace:
[  562.069015][  T808]  <TASK>
[  562.069023][  T808]  dump_stack_lvl+0xe8/0x150
[  562.069049][  T808]  gfs2_withdraw+0xc3/0x1b0
[  562.069069][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  562.069096][  T808]  inode_go_instantiate+0xea/0x1220
[  562.069117][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  562.069140][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  562.069161][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  562.069183][  T808]  gfs2_instantiate+0x168/0x220
[  562.069205][  T808]  gfs2_inode_lookup+0x727/0xc50
[  562.069233][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  562.069253][  T808]  ? check_path+0x21/0x40
[  562.069271][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  562.069289][  T808]  ? add_lock_to_list+0xc7/0x100
[  562.069308][  T808]  ? lockdep_unlock+0x5d/0xd0
[  562.069326][  T808]  ? __lock_acquire+0x146e/0x2cf0
[  562.069356][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  562.069377][  T808]  delete_work_func+0x311/0x4d0
[  562.069401][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  562.069433][  T808]  ? process_one_work+0x8bb/0x1780
[  562.069454][  T808]  process_one_work+0x9ab/0x1780
[  562.069494][  T808]  ? __pfx_process_one_work+0x10/0x10
[  562.069514][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  562.069548][  T808]  worker_thread+0xba8/0x11e0
[  562.069571][  T808]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  562.069591][  T808]  ? __kthread_parkme+0x7a/0x1f0
[  562.069608][  T808]  ? __kthread_parkme+0x19c/0x1f0
[  562.069630][  T808]  kthread+0x388/0x470
[  562.069649][  T808]  ? __pfx_worker_thread+0x10/0x10
[  562.069663][  T808]  ? __pfx_kthread+0x10/0x10
[  562.069682][  T808]  ret_from_fork+0x51e/0xb90
[  562.069707][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  562.069727][  T808]  ? __switch_to+0xc7d/0x1450
[  562.069750][  T808]  ? __pfx_kthread+0x10/0x10
[  562.069770][  T808]  ret_from_fork_asm+0x1a/0x30
[  562.069800][  T808]  </TASK>
[  562.069814][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  562.142388][ T1222] loop0: writeback error on inode 9394, offset 101376, sector 18990
[  562.161390][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  562.624346][ T7477] loop0: detected capacity change from 0 to 32768
[  562.643210][ T7477] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  562.653419][ T7477] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  562.683300][ T7477] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  562.697779][ T1222] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  562.704651][ T1222] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  562.770126][ T1222] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 65ms
[  562.777963][ T1222] gfs2: fsid=syz:syz.0: jid=0: Done
[  562.783253][ T7477] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  562.919652][ T1313] ieee802154 phy0 wpan0: encryption failed: -22
[  562.926381][ T1313] ieee802154 phy1 wpan1: encryption failed: -22
[  563.033883][ T1222] 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
[  563.060134][ T5935] 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
[  563.076275][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  563.076298][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  563.076308][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  563.076335][ T5935] Call Trace:
[  563.076343][ T5935]  <TASK>
[  563.076350][ T5935]  dump_stack_lvl+0xe8/0x150
[  563.076375][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  563.076393][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  563.076419][ T5935]  inode_go_instantiate+0xea/0x1220
[  563.076439][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  563.076461][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  563.076483][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  563.076505][ T5935]  gfs2_instantiate+0x168/0x220
[  563.076526][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  563.076553][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  563.076589][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  563.076606][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  563.076628][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  563.076656][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  563.076678][ T5935]  delete_work_func+0x311/0x4d0
[  563.076696][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  563.076719][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  563.076750][ T5935]  ? process_one_work+0x8bb/0x1780
[  563.076772][ T5935]  process_one_work+0x9ab/0x1780
[  563.076812][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  563.076831][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  563.076864][ T5935]  worker_thread+0xba8/0x11e0
[  563.076889][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  563.076913][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  563.076929][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  563.076950][ T5935]  kthread+0x388/0x470
[  563.076969][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  563.076983][ T5935]  ? __pfx_kthread+0x10/0x10
[  563.077001][ T5935]  ret_from_fork+0x51e/0xb90
[  563.077026][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  563.077046][ T5935]  ? __switch_to+0xc7d/0x1450
[  563.077070][ T5935]  ? __pfx_kthread+0x10/0x10
[  563.077087][ T5935]  ret_from_fork_asm+0x1a/0x30
[  563.077118][ T5935]  </TASK>
[  563.079882][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  563.102833][ T6488] loop0: writeback error on inode 9394, offset 4608000, sector 27864
[  563.121200][ T1222] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  563.624838][ T7484] loop0: detected capacity change from 0 to 32768
[  563.639355][ T7484] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  563.648269][ T7484] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  563.678452][ T7484] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  563.688509][ T1222] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  563.695367][ T1222] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  563.773859][ T1222] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 78ms
[  563.781758][ T1222] gfs2: fsid=syz:syz.0: jid=0: Done
[  563.787245][ T7484] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  564.030194][ T1222] 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
[  564.046853][ T5906] 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
[  564.047899][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  564.047920][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  564.047930][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  564.047957][ T1222] Call Trace:
[  564.047965][ T1222]  <TASK>
[  564.047972][ T1222]  dump_stack_lvl+0xe8/0x150
[  564.047998][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  564.048019][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  564.048054][ T1222]  inode_go_instantiate+0xea/0x1220
[  564.048075][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  564.048097][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  564.048119][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  564.048141][ T1222]  gfs2_instantiate+0x168/0x220
[  564.048162][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  564.048188][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  564.048208][ T1222]  ? check_path+0x21/0x40
[  564.048227][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  564.048248][ T1222]  ? add_lock_to_list+0xc7/0x100
[  564.048267][ T1222]  ? lockdep_unlock+0x5d/0xd0
[  564.048286][ T1222]  ? __lock_acquire+0x146e/0x2cf0
[  564.048315][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  564.048336][ T1222]  delete_work_func+0x311/0x4d0
[  564.048360][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  564.048392][ T1222]  ? process_one_work+0x8bb/0x1780
[  564.048413][ T1222]  process_one_work+0x9ab/0x1780
[  564.048455][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  564.048474][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  564.048507][ T1222]  worker_thread+0xba8/0x11e0
[  564.048531][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  564.048552][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  564.048568][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  564.048590][ T1222]  kthread+0x388/0x470
[  564.048608][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  564.048622][ T1222]  ? __pfx_kthread+0x10/0x10
[  564.048642][ T1222]  ret_from_fork+0x51e/0xb90
[  564.048667][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  564.048685][ T1222]  ? __switch_to+0xc7d/0x1450
[  564.048708][ T1222]  ? __pfx_kthread+0x10/0x10
[  564.048728][ T1222]  ret_from_fork_asm+0x1a/0x30
[  564.048758][ T1222]  </TASK>
[  564.048775][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  564.114218][ T5906] loop0: writeback error on inode 9394, offset 384000, sector 19548
[  564.126162][ T6496] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  564.597153][ T7491] loop0: detected capacity change from 0 to 32768
[  564.613095][ T7491] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  564.629314][ T7491] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  564.659603][ T7491] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  564.673722][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  564.681086][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  564.749508][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 68ms
[  564.757188][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  564.762463][ T7491] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  565.009664][ T6496] 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
[  565.026529][ T6496] CPU: 1 UID: 0 PID: 6496 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT(full) 
[  565.026553][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  565.026564][ T6496] Workqueue: gfs2-delete/syz:syz delete_work_func
[  565.026592][ T6496] Call Trace:
[  565.026599][ T6496]  <TASK>
[  565.026607][ T6496]  dump_stack_lvl+0xe8/0x150
[  565.026634][ T6496]  gfs2_withdraw+0xc3/0x1b0
[  565.026655][ T6496]  gfs2_meta_buffer+0x225/0x2e0
[  565.026692][ T6496]  inode_go_instantiate+0xea/0x1220
[  565.026714][ T6496]  ? do_raw_spin_lock+0x12b/0x2f0
[  565.026737][ T6496]  ? __pfx_inode_go_instantiate+0x10/0x10
[  565.026759][ T6496]  ? do_raw_spin_unlock+0xf5/0x210
[  565.026782][ T6496]  gfs2_instantiate+0x168/0x220
[  565.026804][ T6496]  gfs2_inode_lookup+0x727/0xc50
[  565.026841][ T6496]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  565.026862][ T6496]  ? check_path+0x21/0x40
[  565.026882][ T6496]  ? gfs2_lookup_by_inum+0x52/0x100
[  565.026907][ T6496]  ? add_lock_to_list+0xc7/0x100
[  565.026927][ T6496]  ? lockdep_unlock+0x5d/0xd0
[  565.026950][ T6496]  ? __lock_acquire+0x146e/0x2cf0
[  565.026978][ T6496]  gfs2_lookup_by_inum+0x52/0x100
[  565.026999][ T6496]  delete_work_func+0x311/0x4d0
[  565.027020][ T6496]  ? __pfx_delete_work_func+0x10/0x10
[  565.027041][ T6496]  ? lock_acquire+0x20b/0x2e0
[  565.027065][ T6496]  ? process_one_work+0x8bb/0x1780
[  565.027087][ T6496]  process_one_work+0x9ab/0x1780
[  565.027129][ T6496]  ? __pfx_process_one_work+0x10/0x10
[  565.027148][ T6496]  ? do_raw_spin_lock+0x12b/0x2f0
[  565.027181][ T6496]  worker_thread+0xba8/0x11e0
[  565.027203][ T6496]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  565.027222][ T6496]  ? __kthread_parkme+0x7a/0x1f0
[  565.027238][ T6496]  ? __kthread_parkme+0x19c/0x1f0
[  565.027259][ T6496]  kthread+0x388/0x470
[  565.027275][ T6496]  ? __pfx_worker_thread+0x10/0x10
[  565.027289][ T6496]  ? __pfx_kthread+0x10/0x10
[  565.027306][ T6496]  ret_from_fork+0x51e/0xb90
[  565.027329][ T6496]  ? __pfx_ret_from_fork+0x10/0x10
[  565.027344][ T6496]  ? __switch_to+0xc7d/0x1450
[  565.027359][ T6496]  ? __pfx_kthread+0x10/0x10
[  565.027370][ T6496]  ret_from_fork_asm+0x1a/0x30
[  565.027389][ T6496]  </TASK>
[  565.028560][ T6496] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  565.247488][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  565.254754][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  565.284984][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  570.278636][ T5935] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  570.604315][ T7500] loop0: detected capacity change from 0 to 32768
[  570.625471][ T7500] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  570.634304][ T7500] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  570.672241][ T7500] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  570.683817][ T5935] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  570.692121][ T5935] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  570.736395][ T5935] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 44ms
[  570.744616][ T5935] gfs2: fsid=syz:syz.0: jid=0: Done
[  570.750355][ T7500] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  570.997265][ T5935] 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
[  571.014144][ T5888] 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
[  571.029692][ T1222] 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
[  571.045356][ T5888] CPU: 1 UID: 0 PID: 5888 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
[  571.045379][ T5888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  571.045388][ T5888] Workqueue: gfs2-delete/syz:syz delete_work_func
[  571.045414][ T5888] Call Trace:
[  571.045421][ T5888]  <TASK>
[  571.045429][ T5888]  dump_stack_lvl+0xe8/0x150
[  571.045454][ T5888]  gfs2_withdraw+0xc3/0x1b0
[  571.045472][ T5888]  gfs2_meta_buffer+0x225/0x2e0
[  571.045498][ T5888]  inode_go_instantiate+0xea/0x1220
[  571.045519][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  571.045541][ T5888]  ? __pfx_inode_go_instantiate+0x10/0x10
[  571.045562][ T5888]  ? do_raw_spin_unlock+0xf5/0x210
[  571.045579][ T5888]  gfs2_instantiate+0x168/0x220
[  571.045591][ T5888]  gfs2_inode_lookup+0x727/0xc50
[  571.045607][ T5888]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  571.045622][ T5888]  ? gfs2_lookup_by_inum+0x52/0x100
[  571.045635][ T5888]  ? __lock_acquire+0x6b5/0x2cf0
[  571.045654][ T5888]  gfs2_lookup_by_inum+0x52/0x100
[  571.045667][ T5888]  delete_work_func+0x311/0x4d0
[  571.045687][ T5888]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  571.045701][ T5888]  ? __pfx_delete_work_func+0x10/0x10
[  571.045720][ T5888]  ? process_one_work+0x8bb/0x1780
[  571.045734][ T5888]  process_one_work+0x9ab/0x1780
[  571.045759][ T5888]  ? __pfx_process_one_work+0x10/0x10
[  571.045772][ T5888]  ? do_raw_spin_lock+0x12b/0x2f0
[  571.045792][ T5888]  worker_thread+0xba8/0x11e0
[  571.045813][ T5888]  kthread+0x388/0x470
[  571.045830][ T5888]  ? __pfx_worker_thread+0x10/0x10
[  571.045838][ T5888]  ? __pfx_kthread+0x10/0x10
[  571.045850][ T5888]  ret_from_fork+0x51e/0xb90
[  571.045866][ T5888]  ? __pfx_ret_from_fork+0x10/0x10
[  571.045884][ T5888]  ? __switch_to+0xc7d/0x1450
[  571.045906][ T5888]  ? __pfx_kthread+0x10/0x10
[  571.045934][ T5888]  ret_from_fork_asm+0x1a/0x30
[  571.045962][ T5888]  </TASK>
[  571.226755][ T5888] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  571.237363][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  571.244079][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  571.275148][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  576.278546][   T24] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  576.608628][ T7508] loop0: detected capacity change from 0 to 32768
[  576.622731][ T7508] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  576.631556][ T7508] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  576.665763][ T7508] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  576.677627][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  576.684609][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  576.729954][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 45ms
[  576.738325][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  576.743598][ T7508] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  576.987969][    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
[  577.003739][ 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
[  577.020758][  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
[  577.038188][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  577.038213][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  577.038224][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  577.038251][    T9] Call Trace:
[  577.038259][    T9]  <TASK>
[  577.038267][    T9]  dump_stack_lvl+0xe8/0x150
[  577.038293][    T9]  gfs2_withdraw+0xc3/0x1b0
[  577.038323][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  577.038351][    T9]  inode_go_instantiate+0xea/0x1220
[  577.038373][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  577.038397][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  577.038419][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  577.038443][    T9]  gfs2_instantiate+0x168/0x220
[  577.038465][    T9]  gfs2_inode_lookup+0x727/0xc50
[  577.038492][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  577.038517][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  577.038535][    T9]  ? trace_hrtimer_start+0x82/0x230
[  577.038558][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  577.038588][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  577.038611][    T9]  delete_work_func+0x311/0x4d0
[  577.038630][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  577.038653][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  577.038686][    T9]  ? process_one_work+0x8bb/0x1780
[  577.038708][    T9]  process_one_work+0x9ab/0x1780
[  577.038751][    T9]  ? __pfx_process_one_work+0x10/0x10
[  577.038772][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  577.038805][    T9]  worker_thread+0xba8/0x11e0
[  577.038846][    T9]  kthread+0x388/0x470
[  577.038866][    T9]  ? __pfx_worker_thread+0x10/0x10
[  577.038880][    T9]  ? __pfx_kthread+0x10/0x10
[  577.038901][    T9]  ret_from_fork+0x51e/0xb90
[  577.038926][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  577.038946][    T9]  ? __switch_to+0xc7d/0x1450
[  577.038969][    T9]  ? __pfx_kthread+0x10/0x10
[  577.038988][    T9]  ret_from_fork_asm+0x1a/0x30
[  577.039017][    T9]  </TASK>
[  577.039024][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  577.062060][ T5888] loop0: writeback error on inode 9394, offset 4096000, sector 26856
[  577.081620][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  577.578717][ T7516] loop0: detected capacity change from 0 to 32768
[  577.593449][ T7516] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  577.604246][ T7516] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  577.635276][ T7516] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  577.645108][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  577.652094][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  577.722390][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 70ms
[  577.730381][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  577.735728][ T7516] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  577.979109][    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
[  577.994626][ 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
[  578.010889][ T5906] 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
[  578.026376][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  578.026391][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  578.026398][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  578.026417][    T9] Call Trace:
[  578.026422][    T9]  <TASK>
[  578.026427][    T9]  dump_stack_lvl+0xe8/0x150
[  578.026445][    T9]  gfs2_withdraw+0xc3/0x1b0
[  578.026457][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  578.026475][    T9]  inode_go_instantiate+0xea/0x1220
[  578.026487][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  578.026501][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  578.026513][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  578.026528][    T9]  gfs2_instantiate+0x168/0x220
[  578.026540][    T9]  gfs2_inode_lookup+0x727/0xc50
[  578.026556][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  578.026570][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  578.026581][    T9]  ? trace_hrtimer_start+0x82/0x230
[  578.026595][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  578.026613][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  578.026626][    T9]  delete_work_func+0x311/0x4d0
[  578.026637][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  578.026650][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  578.026672][    T9]  ? process_one_work+0x8bb/0x1780
[  578.026686][    T9]  process_one_work+0x9ab/0x1780
[  578.026711][    T9]  ? __pfx_process_one_work+0x10/0x10
[  578.026723][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  578.026743][    T9]  worker_thread+0xba8/0x11e0
[  578.026764][    T9]  kthread+0x388/0x470
[  578.026781][    T9]  ? __pfx_worker_thread+0x10/0x10
[  578.026794][    T9]  ? __pfx_kthread+0x10/0x10
[  578.026813][    T9]  ret_from_fork+0x51e/0xb90
[  578.026837][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  578.026856][    T9]  ? __switch_to+0xc7d/0x1450
[  578.026880][    T9]  ? __pfx_kthread+0x10/0x10
[  578.026899][    T9]  ret_from_fork_asm+0x1a/0x30
[  578.026923][    T9]  </TASK>
[  578.026928][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  578.232939][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  578.239282][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  578.268807][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  583.238658][  T808] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  583.556178][ T7525] loop0: detected capacity change from 0 to 32768
[  583.581244][ T7525] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  583.590398][ T7525] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  583.625006][ T7525] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  583.641105][  T808] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  583.648168][  T808] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  583.711347][  T808] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 63ms
[  583.719054][  T808] gfs2: fsid=syz:syz.0: jid=0: Done
[  583.724307][ T7525] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  583.968463][  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
[  583.991229][ 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
[  584.010784][ T5906] 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
[  584.028275][ T6488] CPU: 0 UID: 0 PID: 6488 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
[  584.028300][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  584.028312][ T6488] Workqueue: gfs2-delete/syz:syz delete_work_func
[  584.028341][ T6488] Call Trace:
[  584.028349][ T6488]  <TASK>
[  584.028357][ T6488]  dump_stack_lvl+0xe8/0x150
[  584.028383][ T6488]  gfs2_withdraw+0xc3/0x1b0
[  584.028404][ T6488]  gfs2_meta_buffer+0x225/0x2e0
[  584.028438][ T6488]  inode_go_instantiate+0xea/0x1220
[  584.028460][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  584.028485][ T6488]  ? __pfx_inode_go_instantiate+0x10/0x10
[  584.028506][ T6488]  ? do_raw_spin_unlock+0xf5/0x210
[  584.028530][ T6488]  gfs2_instantiate+0x168/0x220
[  584.028561][ T6488]  gfs2_inode_lookup+0x727/0xc50
[  584.028590][ T6488]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  584.028615][ T6488]  ? gfs2_lookup_by_inum+0x52/0x100
[  584.028634][ T6488]  ? trace_hrtimer_start+0x82/0x230
[  584.028657][ T6488]  ? __lock_acquire+0x6b5/0x2cf0
[  584.028687][ T6488]  gfs2_lookup_by_inum+0x52/0x100
[  584.028709][ T6488]  delete_work_func+0x311/0x4d0
[  584.028728][ T6488]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  584.028751][ T6488]  ? __pfx_delete_work_func+0x10/0x10
[  584.028782][ T6488]  ? process_one_work+0x8bb/0x1780
[  584.028803][ T6488]  process_one_work+0x9ab/0x1780
[  584.028846][ T6488]  ? __pfx_process_one_work+0x10/0x10
[  584.028865][ T6488]  ? do_raw_spin_lock+0x12b/0x2f0
[  584.028896][ T6488]  worker_thread+0xba8/0x11e0
[  584.028935][ T6488]  kthread+0x388/0x470
[  584.028955][ T6488]  ? __pfx_worker_thread+0x10/0x10
[  584.028969][ T6488]  ? __pfx_kthread+0x10/0x10
[  584.028989][ T6488]  ret_from_fork+0x51e/0xb90
[  584.029014][ T6488]  ? __pfx_ret_from_fork+0x10/0x10
[  584.029034][ T6488]  ? __switch_to+0xc7d/0x1450
[  584.029057][ T6488]  ? __pfx_kthread+0x10/0x10
[  584.029078][ T6488]  ret_from_fork_asm+0x1a/0x30
[  584.029110][ T6488]  </TASK>
[  584.029117][ T6488] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  584.034275][   T24] loop0: writeback error on inode 9394, offset 6272000, sector 31140
[  584.045671][ T5906] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  584.553915][ T7532] loop0: detected capacity change from 0 to 32768
[  584.569124][ T7532] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  584.577957][ T7532] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  584.604633][ T7532] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  584.614620][ T5888] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  584.621840][ T5888] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  584.693346][ T5888] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 71ms
[  584.702298][ T5888] gfs2: fsid=syz:syz.0: jid=0: Done
[  584.707610][ T7532] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  584.955385][ T5888] 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
[  584.971722][ T5935] 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
[  584.987100][ T1222] 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
[  585.003262][ T5935] CPU: 1 UID: 0 PID: 5935 Comm: kworker/1:4 Not tainted syzkaller #0 PREEMPT(full) 
[  585.003285][ T5935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  585.003295][ T5935] Workqueue: gfs2-delete/syz:syz delete_work_func
[  585.003321][ T5935] Call Trace:
[  585.003328][ T5935]  <TASK>
[  585.003336][ T5935]  dump_stack_lvl+0xe8/0x150
[  585.003362][ T5935]  gfs2_withdraw+0xc3/0x1b0
[  585.003381][ T5935]  gfs2_meta_buffer+0x225/0x2e0
[  585.003406][ T5935]  inode_go_instantiate+0xea/0x1220
[  585.003425][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  585.003447][ T5935]  ? __pfx_inode_go_instantiate+0x10/0x10
[  585.003464][ T5935]  ? do_raw_spin_unlock+0xf5/0x210
[  585.003485][ T5935]  gfs2_instantiate+0x168/0x220
[  585.003507][ T5935]  gfs2_inode_lookup+0x727/0xc50
[  585.003536][ T5935]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  585.003561][ T5935]  ? gfs2_lookup_by_inum+0x52/0x100
[  585.003579][ T5935]  ? trace_hrtimer_start+0x82/0x230
[  585.003602][ T5935]  ? __lock_acquire+0x6b5/0x2cf0
[  585.003631][ T5935]  gfs2_lookup_by_inum+0x52/0x100
[  585.003653][ T5935]  delete_work_func+0x311/0x4d0
[  585.003672][ T5935]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  585.003695][ T5935]  ? __pfx_delete_work_func+0x10/0x10
[  585.003728][ T5935]  ? process_one_work+0x8bb/0x1780
[  585.003750][ T5935]  process_one_work+0x9ab/0x1780
[  585.003793][ T5935]  ? __pfx_process_one_work+0x10/0x10
[  585.003813][ T5935]  ? do_raw_spin_lock+0x12b/0x2f0
[  585.003848][ T5935]  worker_thread+0xba8/0x11e0
[  585.003885][ T5935]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  585.003906][ T5935]  ? __kthread_parkme+0x7a/0x1f0
[  585.003924][ T5935]  ? __kthread_parkme+0x19c/0x1f0
[  585.003947][ T5935]  kthread+0x388/0x470
[  585.003967][ T5935]  ? __pfx_worker_thread+0x10/0x10
[  585.003981][ T5935]  ? __pfx_kthread+0x10/0x10
[  585.004001][ T5935]  ret_from_fork+0x51e/0xb90
[  585.004026][ T5935]  ? __pfx_ret_from_fork+0x10/0x10
[  585.004047][ T5935]  ? __switch_to+0xc7d/0x1450
[  585.004071][ T5935]  ? __pfx_kthread+0x10/0x10
[  585.004090][ T5935]  ret_from_fork_asm+0x1a/0x30
[  585.004120][ T5935]  </TASK>
[  585.004928][ T5935] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  585.215517][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  585.221901][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  585.253359][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  590.278732][ T5888] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  590.598764][ T7540] loop0: detected capacity change from 0 to 32768
[  590.609807][ T7540] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  590.619650][ T7540] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  590.648942][ T7540] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  590.658868][ T5888] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  590.665817][ T5888] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  590.717738][ T5888] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 51ms
[  590.725348][ T5888] gfs2: fsid=syz:syz.0: jid=0: Done
[  590.730664][ T7540] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  590.972921][ T5935] 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
[  590.989681][   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
[  591.005422][ T1222] 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
[  591.022113][   T24] CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 
[  591.022136][   T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  591.022146][   T24] Workqueue: gfs2-delete/syz:syz delete_work_func
[  591.022173][   T24] Call Trace:
[  591.022179][   T24]  <TASK>
[  591.022187][   T24]  dump_stack_lvl+0xe8/0x150
[  591.022212][   T24]  gfs2_withdraw+0xc3/0x1b0
[  591.022232][   T24]  gfs2_meta_buffer+0x225/0x2e0
[  591.022255][   T24]  inode_go_instantiate+0xea/0x1220
[  591.022278][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  591.022300][   T24]  ? __pfx_inode_go_instantiate+0x10/0x10
[  591.022322][   T24]  ? do_raw_spin_unlock+0xf5/0x210
[  591.022357][   T24]  gfs2_instantiate+0x168/0x220
[  591.022379][   T24]  gfs2_inode_lookup+0x727/0xc50
[  591.022408][   T24]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  591.022433][   T24]  ? gfs2_lookup_by_inum+0x52/0x100
[  591.022451][   T24]  ? trace_hrtimer_start+0x82/0x230
[  591.022473][   T24]  ? __lock_acquire+0x6b5/0x2cf0
[  591.022501][   T24]  gfs2_lookup_by_inum+0x52/0x100
[  591.022521][   T24]  delete_work_func+0x311/0x4d0
[  591.022539][   T24]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  591.022561][   T24]  ? __pfx_delete_work_func+0x10/0x10
[  591.022590][   T24]  ? process_one_work+0x8bb/0x1780
[  591.022612][   T24]  process_one_work+0x9ab/0x1780
[  591.022655][   T24]  ? __pfx_process_one_work+0x10/0x10
[  591.022676][   T24]  ? do_raw_spin_lock+0x12b/0x2f0
[  591.022711][   T24]  worker_thread+0xba8/0x11e0
[  591.022751][   T24]  kthread+0x388/0x470
[  591.022771][   T24]  ? __pfx_worker_thread+0x10/0x10
[  591.022785][   T24]  ? __pfx_kthread+0x10/0x10
[  591.022805][   T24]  ret_from_fork+0x51e/0xb90
[  591.022831][   T24]  ? __pfx_ret_from_fork+0x10/0x10
[  591.022851][   T24]  ? __switch_to+0xc7d/0x1450
[  591.022875][   T24]  ? __pfx_kthread+0x10/0x10
[  591.022896][   T24]  ret_from_fork_asm+0x1a/0x30
[  591.022928][   T24]  </TASK>
[  591.022946][   T24] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  591.216350][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  591.222572][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  591.253105][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  596.278578][ T5935] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  596.601141][ T7550] loop0: detected capacity change from 0 to 32768
[  596.614527][ T7550] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  596.623265][ T7550] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  596.653031][ T7550] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  596.670308][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  596.679147][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  596.722603][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 43ms
[  596.730194][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  596.735554][ T7550] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  596.981228][ T1222] 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
[  596.982129][ T5906] 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
[  596.998405][   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
[  597.028036][ T5935] 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
[  597.043414][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  597.043438][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  597.043449][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  597.043478][ T1222] Call Trace:
[  597.043486][ T1222]  <TASK>
[  597.043494][ T1222]  dump_stack_lvl+0xe8/0x150
[  597.043522][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  597.043543][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  597.043570][ T1222]  inode_go_instantiate+0xea/0x1220
[  597.043592][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  597.043615][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  597.043638][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  597.043661][ T1222]  gfs2_instantiate+0x168/0x220
[  597.043683][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  597.043712][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  597.043815][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  597.043834][ T1222]  ? trace_hrtimer_start+0x82/0x230
[  597.043856][ T1222]  ? __lock_acquire+0x6b5/0x2cf0
[  597.043882][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  597.043904][ T1222]  delete_work_func+0x311/0x4d0
[  597.043922][ T1222]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  597.043940][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  597.043965][ T1222]  ? process_one_work+0x8bb/0x1780
[  597.043983][ T1222]  process_one_work+0x9ab/0x1780
[  597.044016][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  597.044031][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  597.044058][ T1222]  worker_thread+0xba8/0x11e0
[  597.044077][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  597.044094][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  597.044112][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  597.044129][ T1222]  kthread+0x388/0x470
[  597.044144][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  597.044155][ T1222]  ? __pfx_kthread+0x10/0x10
[  597.044171][ T1222]  ret_from_fork+0x51e/0xb90
[  597.044192][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  597.044208][ T1222]  ? __switch_to+0xc7d/0x1450
[  597.044227][ T1222]  ? __pfx_kthread+0x10/0x10
[  597.044243][ T1222]  ret_from_fork_asm+0x1a/0x30
[  597.044269][ T1222]  </TASK>
[  597.044280][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  597.113186][ T5906] loop0: writeback error on inode 9394, offset 2048000, sector 22824
[  597.128535][   T24] gfs2: fsid=syz:syz.0: file system withdrawn
[  597.270396][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1f8000 len 0x1000 error -5
[  597.270459][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1f9000 len 0x1000 error -5
[  597.280508][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1fa000 len 0x1000 error -5
[  597.290550][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1fb000 len 0x1000 error -5
[  597.301308][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1fc000 len 0x1000 error -5
[  597.311338][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1fd000 len 0x1000 error -5
[  597.321376][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1fe000 len 0x1000 error -5
[  597.331332][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x1ff000 len 0x1000 error -5
[  597.341299][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x200000 len 0x1000 error -5
executing program
[  597.351345][ T5906] loop0: lost file I/O error report for ino 9394 type 1 pos 0x201000 len 0x1000 error -5
[  597.669464][ T7557] loop0: detected capacity change from 0 to 32768
[  597.691542][ T7557] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  597.700133][ T7557] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  597.730486][ T7557] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  597.740192][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  597.748974][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  597.794792][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 45ms
[  597.805986][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  597.811236][ T7557] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  598.050789][ T5906] 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
[  598.066951][    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
[  598.082876][  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
[  598.100093][    T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
[  598.100117][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  598.100126][    T9] Workqueue: gfs2-delete/syz:syz delete_work_func
[  598.100151][    T9] Call Trace:
[  598.100158][    T9]  <TASK>
[  598.100174][    T9]  dump_stack_lvl+0xe8/0x150
[  598.100199][    T9]  gfs2_withdraw+0xc3/0x1b0
[  598.100218][    T9]  gfs2_meta_buffer+0x225/0x2e0
[  598.100247][    T9]  inode_go_instantiate+0xea/0x1220
[  598.100268][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  598.100289][    T9]  ? __pfx_inode_go_instantiate+0x10/0x10
[  598.100309][    T9]  ? do_raw_spin_unlock+0xf5/0x210
[  598.100327][    T9]  gfs2_instantiate+0x168/0x220
[  598.100347][    T9]  gfs2_inode_lookup+0x727/0xc50
[  598.100376][    T9]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  598.100399][    T9]  ? gfs2_lookup_by_inum+0x52/0x100
[  598.100417][    T9]  ? trace_hrtimer_start+0x82/0x230
[  598.100440][    T9]  ? __lock_acquire+0x6b5/0x2cf0
[  598.100470][    T9]  gfs2_lookup_by_inum+0x52/0x100
[  598.100502][    T9]  delete_work_func+0x311/0x4d0
[  598.100521][    T9]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  598.100544][    T9]  ? __pfx_delete_work_func+0x10/0x10
[  598.100577][    T9]  ? process_one_work+0x8bb/0x1780
[  598.100605][    T9]  process_one_work+0x9ab/0x1780
[  598.100653][    T9]  ? __pfx_process_one_work+0x10/0x10
[  598.100673][    T9]  ? do_raw_spin_lock+0x12b/0x2f0
[  598.100709][    T9]  worker_thread+0xba8/0x11e0
[  598.100750][    T9]  kthread+0x388/0x470
[  598.100769][    T9]  ? __pfx_worker_thread+0x10/0x10
[  598.100789][    T9]  ? __pfx_kthread+0x10/0x10
[  598.100809][    T9]  ret_from_fork+0x51e/0xb90
[  598.100835][    T9]  ? __pfx_ret_from_fork+0x10/0x10
[  598.100855][    T9]  ? __switch_to+0xc7d/0x1450
[  598.100880][    T9]  ? __pfx_kthread+0x10/0x10
[  598.100900][    T9]  ret_from_fork_asm+0x1a/0x30
[  598.100933][    T9]  </TASK>
[  598.100951][    T9] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  598.294666][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  598.301437][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  598.332400][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  603.318741][ T5906] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  603.634084][ T7565] loop0: detected capacity change from 0 to 32768
[  603.652857][ T7565] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  603.670997][ T7565] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  603.701221][ T7565] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  603.713246][   T24] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  603.722603][   T24] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  603.784519][   T24] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 61ms
[  603.792457][   T24] gfs2: fsid=syz:syz.0: jid=0: Done
[  603.798108][ T7565] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  604.044787][ T1222] 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
[  604.062050][   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
[  604.079260][ T1222] CPU: 1 UID: 0 PID: 1222 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT(full) 
[  604.079285][ T1222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  604.079296][ T1222] Workqueue: gfs2-delete/syz:syz delete_work_func
[  604.079323][ T1222] Call Trace:
[  604.079330][ T1222]  <TASK>
[  604.079339][ T1222]  dump_stack_lvl+0xe8/0x150
[  604.079365][ T1222]  gfs2_withdraw+0xc3/0x1b0
[  604.079385][ T1222]  gfs2_meta_buffer+0x225/0x2e0
[  604.079414][ T1222]  inode_go_instantiate+0xea/0x1220
[  604.079435][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  604.079458][ T1222]  ? __pfx_inode_go_instantiate+0x10/0x10
[  604.079479][ T1222]  ? do_raw_spin_unlock+0xf5/0x210
[  604.079502][ T1222]  gfs2_instantiate+0x168/0x220
[  604.079523][ T1222]  gfs2_inode_lookup+0x727/0xc50
[  604.079550][ T1222]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  604.079574][ T1222]  ? gfs2_lookup_by_inum+0x52/0x100
[  604.079591][ T1222]  ? trace_hrtimer_start+0x82/0x230
[  604.079612][ T1222]  ? __lock_acquire+0x6b5/0x2cf0
[  604.079639][ T1222]  gfs2_lookup_by_inum+0x52/0x100
[  604.079660][ T1222]  delete_work_func+0x311/0x4d0
[  604.079677][ T1222]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  604.079698][ T1222]  ? __pfx_delete_work_func+0x10/0x10
[  604.079729][ T1222]  ? process_one_work+0x8bb/0x1780
[  604.079751][ T1222]  process_one_work+0x9ab/0x1780
[  604.079791][ T1222]  ? __pfx_process_one_work+0x10/0x10
[  604.079812][ T1222]  ? do_raw_spin_lock+0x12b/0x2f0
[  604.079847][ T1222]  worker_thread+0xba8/0x11e0
[  604.079872][ T1222]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  604.079893][ T1222]  ? __kthread_parkme+0x7a/0x1f0
[  604.079910][ T1222]  ? __kthread_parkme+0x19c/0x1f0
[  604.079931][ T1222]  kthread+0x388/0x470
[  604.079950][ T1222]  ? __pfx_worker_thread+0x10/0x10
[  604.079963][ T1222]  ? __pfx_kthread+0x10/0x10
[  604.079982][ T1222]  ret_from_fork+0x51e/0xb90
[  604.080007][ T1222]  ? __pfx_ret_from_fork+0x10/0x10
[  604.080027][ T1222]  ? __switch_to+0xc7d/0x1450
[  604.080050][ T1222]  ? __pfx_kthread+0x10/0x10
[  604.080070][ T1222]  ret_from_fork_asm+0x1a/0x30
[  604.080110][ T1222]  </TASK>
[  604.080117][ T1222] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  604.152275][ T5906] loop0: writeback error on inode 9394, offset 2048000, sector 22824
[  604.163764][   T24] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  604.615483][ T7573] loop0: detected capacity change from 0 to 32768
[  604.635073][ T7573] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  604.648191][ T7573] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  604.680628][ T7573] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[  604.690930][ T5906] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  604.697803][ T5906] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  604.761140][ T5906] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 63ms
[  604.769018][ T5906] gfs2: fsid=syz:syz.0: jid=0: Done
[  604.774300][ T7573] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  605.012788][  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
[  605.029173][ T6506] 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
[  605.045372][  T808] CPU: 0 UID: 0 PID: 808 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) 
[  605.045397][  T808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  605.045409][  T808] Workqueue: gfs2-delete/syz:syz delete_work_func
[  605.045436][  T808] Call Trace:
[  605.045443][  T808]  <TASK>
[  605.045453][  T808]  dump_stack_lvl+0xe8/0x150
[  605.045478][  T808]  gfs2_withdraw+0xc3/0x1b0
[  605.045498][  T808]  gfs2_meta_buffer+0x225/0x2e0
[  605.045527][  T808]  inode_go_instantiate+0xea/0x1220
[  605.045548][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  605.045571][  T808]  ? __pfx_inode_go_instantiate+0x10/0x10
[  605.045592][  T808]  ? do_raw_spin_unlock+0xf5/0x210
[  605.045614][  T808]  gfs2_instantiate+0x168/0x220
[  605.045635][  T808]  gfs2_inode_lookup+0x727/0xc50
[  605.045651][  T808]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  605.045666][  T808]  ? gfs2_lookup_by_inum+0x52/0x100
[  605.045677][  T808]  ? trace_hrtimer_start+0x82/0x230
[  605.045691][  T808]  ? __lock_acquire+0x6b5/0x2cf0
[  605.045709][  T808]  gfs2_lookup_by_inum+0x52/0x100
[  605.045723][  T808]  delete_work_func+0x311/0x4d0
[  605.045734][  T808]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  605.045747][  T808]  ? __pfx_delete_work_func+0x10/0x10
[  605.045779][  T808]  ? process_one_work+0x8bb/0x1780
[  605.045794][  T808]  process_one_work+0x9ab/0x1780
[  605.045818][  T808]  ? __pfx_process_one_work+0x10/0x10
[  605.045831][  T808]  ? do_raw_spin_lock+0x12b/0x2f0
[  605.045851][  T808]  worker_thread+0xba8/0x11e0
[  605.045864][  T808]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  605.045882][  T808]  ? __kthread_parkme+0x7a/0x1f0
[  605.045904][  T808]  ? __kthread_parkme+0x19c/0x1f0
[  605.045923][  T808]  kthread+0x388/0x470
[  605.045941][  T808]  ? __pfx_worker_thread+0x10/0x10
[  605.045954][  T808]  ? __pfx_kthread+0x10/0x10
[  605.045972][  T808]  ret_from_fork+0x51e/0xb90
[  605.045998][  T808]  ? __pfx_ret_from_fork+0x10/0x10
[  605.046018][  T808]  ? __switch_to+0xc7d/0x1450
[  605.046042][  T808]  ? __pfx_kthread+0x10/0x10
[  605.046062][  T808]  ret_from_fork_asm+0x1a/0x30
[  605.046092][  T808]  </TASK>
[  605.251857][  T808] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  605.271825][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  605.300247][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  610.278806][ T6488] gfs2: fsid=syz:syz.0: file system withdrawn
executing program
[  610.602747][ T7581] loop0: detected capacity change from 0 to 32768
[  610.616527][ T7581] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  610.625847][ T7581] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  610.666957][ T7581] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 1ms
[  610.676818][ T6488] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  610.683662][ T6488] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  610.758473][ T6488] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 74ms
[  610.766415][ T6488] gfs2: fsid=syz:syz.0: jid=0: Done
[  610.772177][ T7581] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  611.017429][ T5906] 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
[  611.033291][ T6506] 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
[  611.048781][ T6506] CPU: 0 UID: 0 PID: 6506 Comm: kworker/0:5 Not tainted syzkaller #0 PREEMPT(full) 
[  611.048800][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[  611.048807][ T6506] Workqueue: gfs2-delete/syz:syz delete_work_func
[  611.048826][ T6506] Call Trace:
[  611.048832][ T6506]  <TASK>
[  611.048838][ T6506]  dump_stack_lvl+0xe8/0x150
[  611.048855][ T6506]  gfs2_withdraw+0xc3/0x1b0
[  611.048868][ T6506]  gfs2_meta_buffer+0x225/0x2e0
[  611.048885][ T6506]  inode_go_instantiate+0xea/0x1220
[  611.048897][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  611.048912][ T6506]  ? __pfx_inode_go_instantiate+0x10/0x10
[  611.048924][ T6506]  ? do_raw_spin_unlock+0xf5/0x210
[  611.048938][ T6506]  gfs2_instantiate+0x168/0x220
[  611.048951][ T6506]  gfs2_inode_lookup+0x727/0xc50
[  611.048968][ T6506]  ? __pfx_gfs2_inode_lookup+0x10/0x10
[  611.048982][ T6506]  ? gfs2_lookup_by_inum+0x52/0x100
[  611.048993][ T6506]  ? trace_hrtimer_start+0x82/0x230
[  611.049006][ T6506]  ? __lock_acquire+0x6b5/0x2cf0
[  611.049025][ T6506]  gfs2_lookup_by_inum+0x52/0x100
[  611.049038][ T6506]  delete_work_func+0x311/0x4d0
[  611.049049][ T6506]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  611.049063][ T6506]  ? __pfx_delete_work_func+0x10/0x10
[  611.049081][ T6506]  ? process_one_work+0x8bb/0x1780
[  611.049096][ T6506]  process_one_work+0x9ab/0x1780
[  611.049121][ T6506]  ? __pfx_process_one_work+0x10/0x10
[  611.049134][ T6506]  ? do_raw_spin_lock+0x12b/0x2f0
[  611.049153][ T6506]  worker_thread+0xba8/0x11e0
[  611.049167][ T6506]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  611.049179][ T6506]  ? __kthread_parkme+0x7a/0x1f0
[  611.049189][ T6506]  ? __kthread_parkme+0x19c/0x1f0
[  611.049212][ T6506]  kthread+0x388/0x470
[  611.049224][ T6506]  ? __pfx_worker_thread+0x10/0x10
[  611.049232][ T6506]  ? __pfx_kthread+0x10/0x10
[  611.049244][ T6506]  ret_from_fork+0x51e/0xb90
[  611.049260][ T6506]  ? __pfx_ret_from_fork+0x10/0x10
[  611.049273][ T6506]  ? __switch_to+0xc7d/0x1450
[  611.049288][ T6506]  ? __pfx_kthread+0x10/0x10
[  611.049299][ T6506]  ret_from_fork_asm+0x1a/0x30
[  611.049317][ T6506]  </TASK>
[  611.049322][ T6506] gfs2: fsid=syz:syz.0: about to withdraw this file system
[  611.267518][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5
[  611.298126][ T7187] gfs2: fsid=syz:syz.0: gfs2_evict_inode: -5