Warning: Permanently added '10.128.0.75' (ED25519) to the list of known hosts. executing program syzkaller login: [ 40.269061][ T4023] loop0: detected capacity change from 0 to 32768 [ 40.337114][ T4023] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 40.339587][ T4023] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 40.351023][ T4023] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 40.354860][ T3606] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 40.356818][ T3606] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 40.386836][ T3606] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 30ms [ 40.390984][ T3606] gfs2: fsid=syz:syz.0: jid=0: Done [ 40.393094][ T4023] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 40.469615][ T4023] gfs2: fsid=syz:syz.0: found 1 quota changes executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 44.472531][ T4027] ------------[ cut here ]------------ [ 44.474329][ T4027] WARNING: CPU: 1 PID: 4027 at include/linux/backing-dev.h:289 __set_page_dirty+0x938/0xc74 [ 44.477063][ T4027] Modules linked in: [ 44.478149][ T4027] CPU: 1 PID: 4027 Comm: gfs2_quotad Not tainted 5.15.185-syzkaller #0 [ 44.480452][ T4027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 44.483221][ T4027] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.485353][ T4027] pc : __set_page_dirty+0x938/0xc74 [ 44.486788][ T4027] lr : __set_page_dirty+0x938/0xc74 [ 44.488218][ T4027] sp : ffff80001f4f77a0 [ 44.489347][ T4027] x29: ffff80001f4f77b0 x28: ffff0000c14d8000 x27: 0000000000000000 [ 44.491563][ T4027] x26: dfff800000000000 x25: 1fffe000180b19d9 x24: 0000000000000000 [ 44.493753][ T4027] x23: ffff0000c058cec8 x22: 0000000000000000 x21: 0000000000000001 [ 44.495953][ T4027] x20: ffff0000cbd52250 x19: fffffc0003207740 x18: 0000000000000000 [ 44.498136][ T4027] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 44.500303][ T4027] x14: ffff0000c1090a00 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 44.502465][ T4027] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000869dba4 [ 44.504600][ T4027] x8 : ffff0000c1090000 x7 : ffff80000869d2b0 x6 : 0000000000000000 [ 44.506765][ T4027] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000899ce68 [ 44.508886][ T4027] x2 : ffff0000cc44c060 x1 : 0000000000000000 x0 : 0000000000000000 [ 44.511058][ T4027] Call trace: [ 44.511966][ T4027] __set_page_dirty+0x938/0xc74 [ 44.513306][ T4027] mark_buffer_dirty+0x27c/0x52c [ 44.515794][ T4027] gfs2_unpin+0x12c/0xc28 [ 44.517484][ T4027] buf_lo_after_commit+0x140/0x188 [ 44.518881][ T4027] gfs2_log_flush+0x13cc/0x2078 [ 44.520189][ T4027] do_sync+0x844/0xa4c [ 44.521325][ T4027] gfs2_quota_sync+0x2e8/0x548 [ 44.522625][ T4027] gfs2_quotad+0x304/0x700 [ 44.523804][ T4027] kthread+0x374/0x454 [ 44.524929][ T4027] ret_from_fork+0x10/0x20 [ 44.526118][ T4027] irq event stamp: 306 [ 44.527248][ T4027] hardirqs last enabled at (305): [] lock_page_memcg+0x110/0x234 [ 44.529833][ T4027] hardirqs last disabled at (306): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 44.532591][ T4027] softirqs last enabled at (0): [] copy_process+0x111c/0x34ac [ 44.535171][ T4027] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 44.537127][ T4027] ---[ end trace 06e9f8d52490c87a ]--- executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 49.509029][ T153] ------------[ cut here ]------------ [ 49.510761][ T153] WARNING: CPU: 1 PID: 153 at include/linux/backing-dev.h:289 __test_set_page_writeback+0xa34/0xc34 [ 49.513585][ T153] Modules linked in: [ 49.514564][ T153] CPU: 1 PID: 153 Comm: kworker/u4:3 Tainted: G W 5.15.185-syzkaller #0 [ 49.517097][ T153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 49.519806][ T153] Workqueue: writeback wb_workfn (flush-7:0) [ 49.521453][ T153] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 49.523599][ T153] pc : __test_set_page_writeback+0xa34/0xc34 [ 49.525204][ T153] lr : __test_set_page_writeback+0xa34/0xc34 [ 49.526813][ T153] sp : ffff80001bea6c00 [ 49.527943][ T153] x29: ffff80001bea6ce0 x28: 0000000000000000 x27: 0000000000000000 [ 49.530148][ T153] x26: ffff0000c058cd20 x25: dfff800000000000 x24: 0000000000000000 [ 49.532314][ T153] x23: ffff0000d71ec7e8 x22: fffffc0003256808 x21: ffff80001bea6c60 [ 49.534550][ T153] x20: 1fffff800064ad01 x19: fffffc0003256800 x18: 0000000000000000 [ 49.536734][ T153] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 49.538887][ T153] x14: ffff0000c2a82540 x13: ffff0000c2a825e0 x12: 0000000000ff0100 [ 49.541097][ T153] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff8000086a0718 [ 49.543294][ T153] x8 : ffff0000c2a81b40 x7 : 0000000000000000 x6 : 0000000000000000 [ 49.545501][ T153] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086a0194 [ 49.547660][ T153] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 49.549819][ T153] Call trace: [ 49.550681][ T153] __test_set_page_writeback+0xa34/0xc34 [ 49.552242][ T153] gfs2_aspace_writepage+0x548/0x710 [ 49.553709][ T153] __writepage+0x70/0x120 [ 49.554930][ T153] write_cache_pages+0x7c8/0xde4 [ 49.556270][ T153] do_writepages+0x3cc/0x578 [ 49.557497][ T153] filemap_fdatawrite_wbc+0x1d4/0x234 [ 49.558910][ T153] filemap_fdatawrite+0xb0/0xf4 [ 49.560184][ T153] gfs2_write_inode+0x2ec/0x3f4 [ 49.561495][ T153] __writeback_single_inode+0x560/0x11f0 [ 49.562984][ T153] writeback_sb_inodes+0x7fc/0x1378 [ 49.564353][ T153] __writeback_inodes_wb+0x110/0x394 [ 49.565762][ T153] wb_writeback+0x3ec/0xe44 [ 49.567034][ T153] wb_workfn+0xa7c/0xdd8 [ 49.568248][ T153] process_one_work+0x79c/0x1140 [ 49.569602][ T153] worker_thread+0x8f4/0x101c [ 49.570892][ T153] kthread+0x374/0x454 [ 49.571963][ T153] ret_from_fork+0x10/0x20 [ 49.573128][ T153] irq event stamp: 724758 [ 49.574274][ T153] hardirqs last enabled at (724757): [] lock_page_memcg+0x110/0x234 [ 49.576939][ T153] hardirqs last disabled at (724758): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 49.579754][ T153] softirqs last enabled at (724552): [] neigh_periodic_work+0xb58/0xc24 [ 49.582566][ T153] softirqs last disabled at (724548): [] neigh_periodic_work+0x104/0xc24 [ 49.585267][ T153] ---[ end trace 06e9f8d52490c87b ]--- [ 49.605366][ C1] ------------[ cut here ]------------ [ 49.606979][ C1] WARNING: CPU: 1 PID: 20 at include/linux/backing-dev.h:289 test_clear_page_writeback+0x8d0/0xacc [ 49.609946][ C1] Modules linked in: [ 49.610942][ C1] CPU: 1 PID: 20 Comm: ksoftirqd/1 Tainted: G W 5.15.185-syzkaller #0 [ 49.613531][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 49.616291][ C1] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 49.618386][ C1] pc : test_clear_page_writeback+0x8d0/0xacc [ 49.620088][ C1] lr : test_clear_page_writeback+0x8d0/0xacc [ 49.621692][ C1] sp : ffff80001b3879a0 [ 49.622821][ C1] x29: ffff80001b3879b0 x28: ffff0000cc44c000 x27: fffffc00035bd688 [ 49.624986][ C1] x26: dfff800000000000 x25: 05ffc000000020b2 x24: 0000000000000000 [ 49.627246][ C1] x23: ffff0000c058cd20 x22: 0000000000000001 x21: 0000000000000001 [ 49.629412][ C1] x20: ffff0000d71ec7e8 x19: fffffc0003256800 x18: 0000000000000001 [ 49.631591][ C1] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 49.633816][ C1] x14: 00000000ffff8000 x13: 1ffff0000282c06b x12: 0000000000ff0100 executing program [ 49.636048][ C1] x11: 0000000000000101 x10: 0000000000000000 x9 : ffff80000869fae8 [ 49.638204][ C1] x8 : ffff0000c0a78000 x7 : 0000000000000000 x6 : 0000000000000000 [ 49.640404][ C1] x5 : 0000000000000080 x4 : 0000000000000008 x3 : 0000000000000000 [ 49.642593][ C1] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 49.644745][ C1] Call trace: [ 49.645639][ C1] test_clear_page_writeback+0x8d0/0xacc [ 49.647101][ C1] end_page_writeback+0x174/0x488 [ 49.648523][ C1] end_buffer_async_write+0x340/0x56c [ 49.649963][ C1] end_bio_bh_io_sync+0xb0/0x1b4 [ 49.651276][ C1] bio_endio+0x744/0x788 [ 49.652483][ C1] blk_update_request+0x7a4/0x1100 [ 49.653915][ C1] blk_mq_end_request+0x54/0x88 [ 49.655233][ C1] lo_complete_rq+0x1ec/0x250 [ 49.656538][ C1] blk_done_softirq+0x11c/0x168 [ 49.657868][ C1] handle_softirqs+0x344/0xbf0 [ 49.659126][ C1] run_ksoftirqd+0x7c/0x2a0 [ 49.660414][ C1] smpboot_thread_fn+0x4b0/0x920 [ 49.661699][ C1] kthread+0x374/0x454 [ 49.662815][ C1] ret_from_fork+0x10/0x20 [ 49.664040][ C1] irq event stamp: 193729 [ 49.665201][ C1] hardirqs last enabled at (193728): [] lock_page_memcg+0x110/0x234 [ 49.667787][ C1] hardirqs last disabled at (193729): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 49.670580][ C1] softirqs last enabled at (193702): [] handle_softirqs+0xa4c/0xbf0 [ 49.673182][ C1] softirqs last disabled at (193707): [] run_ksoftirqd+0x7c/0x2a0 [ 49.675750][ C1] ---[ end trace 06e9f8d52490c87c ]--- executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program