Warning: Permanently added '10.128.1.139' (ED25519) to the list of known hosts. executing program syzkaller login: [ 44.053085][ T4022] loop0: detected capacity change from 0 to 32768 [ 44.112390][ T4022] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 44.114767][ T4022] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 44.131392][ T4022] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 44.135151][ T21] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 44.137055][ T21] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 44.167040][ T21] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 29ms [ 44.171389][ T21] gfs2: fsid=syz:syz.0: jid=0: Done [ 44.173136][ T4022] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 44.254124][ T4022] 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 [ 48.261690][ T4026] ------------[ cut here ]------------ [ 48.263407][ T4026] WARNING: CPU: 1 PID: 4026 at include/linux/backing-dev.h:289 __set_page_dirty+0x938/0xc74 [ 48.266254][ T4026] Modules linked in: [ 48.267320][ T4026] CPU: 1 PID: 4026 Comm: gfs2_quotad Not tainted 5.15.185-syzkaller #0 [ 48.269705][ T4026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 48.272485][ T4026] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 48.274676][ T4026] pc : __set_page_dirty+0x938/0xc74 [ 48.276058][ T4026] lr : __set_page_dirty+0x938/0xc74 [ 48.277548][ T4026] sp : ffff80001f6477a0 [ 48.278733][ T4026] x29: ffff80001f6477b0 x28: ffff0000c2094000 x27: 0000000000000000 [ 48.280953][ T4026] x26: dfff800000000000 x25: 1fffe00018a54b51 x24: 0000000000000000 [ 48.283122][ T4026] x23: ffff0000c52a5a88 x22: 0000000000000000 x21: 0000000000000001 [ 48.285296][ T4026] x20: ffff0000cb3b97c0 x19: fffffc000308a100 x18: 0000000000000000 [ 48.287539][ T4026] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 48.289706][ T4026] x14: ffff0000c1885bc0 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 48.291940][ T4026] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000869dba4 [ 48.294113][ T4026] x8 : ffff0000c18851c0 x7 : ffff80000869d2b0 x6 : 0000000000000000 [ 48.296247][ T4026] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000899ce68 [ 48.298454][ T4026] x2 : ffff0000cc338060 x1 : 0000000000000000 x0 : 0000000000000000 [ 48.300647][ T4026] Call trace: [ 48.301580][ T4026] __set_page_dirty+0x938/0xc74 [ 48.302984][ T4026] mark_buffer_dirty+0x27c/0x52c [ 48.304341][ T4026] gfs2_unpin+0x12c/0xc28 [ 48.305554][ T4026] buf_lo_after_commit+0x140/0x188 [ 48.306992][ T4026] gfs2_log_flush+0x13cc/0x2078 [ 48.308302][ T4026] do_sync+0x844/0xa4c [ 48.309477][ T4026] gfs2_quota_sync+0x2e8/0x548 [ 48.310802][ T4026] gfs2_quotad+0x304/0x700 [ 48.312029][ T4026] kthread+0x374/0x454 [ 48.313141][ T4026] ret_from_fork+0x10/0x20 [ 48.314379][ T4026] irq event stamp: 292 [ 48.315449][ T4026] hardirqs last enabled at (291): [] lock_page_memcg+0x110/0x234 [ 48.318141][ T4026] hardirqs last disabled at (292): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 48.320886][ T4026] softirqs last enabled at (0): [] copy_process+0x111c/0x34ac [ 48.323537][ T4026] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 48.325533][ T4026] ---[ end trace 7ef5681d4d4474ed ]--- 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 [ 53.298433][ T411] ------------[ cut here ]------------ [ 53.300108][ T411] WARNING: CPU: 1 PID: 411 at include/linux/backing-dev.h:289 __test_set_page_writeback+0xa34/0xc34 [ 53.303155][ T411] Modules linked in: [ 53.304188][ T411] CPU: 1 PID: 411 Comm: kworker/u4:5 Tainted: G W 5.15.185-syzkaller #0 [ 53.306893][ T411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 53.309803][ T411] Workqueue: writeback wb_workfn (flush-7:0) [ 53.311513][ T411] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 53.313791][ T411] pc : __test_set_page_writeback+0xa34/0xc34 [ 53.315392][ T411] lr : __test_set_page_writeback+0xa34/0xc34 [ 53.317119][ T411] sp : ffff80001f1b6c00 [ 53.318296][ T411] x29: ffff80001f1b6ce0 x28: 0000000000000000 x27: 0000000000000000 [ 53.320453][ T411] x26: ffff0000c52a58e0 x25: dfff800000000000 x24: 0000000000000000 [ 53.322712][ T411] x23: ffff0000cb3ba250 x22: fffffc0003207ac8 x21: ffff80001f1b6c60 [ 53.324975][ T411] x20: 1fffff8000640f59 x19: fffffc0003207ac0 x18: 0000000000000000 [ 53.327189][ T411] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 53.329309][ T411] x14: ffff0000c84f0a00 x13: ffff0000c84f0aa0 x12: 0000000000ff0100 [ 53.331585][ T411] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff8000086a0718 [ 53.333937][ T411] x8 : ffff0000c84f0000 x7 : 0000000000000000 x6 : 0000000000000000 [ 53.336115][ T411] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086a0194 [ 53.338367][ T411] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 53.340514][ T411] Call trace: [ 53.341404][ T411] __test_set_page_writeback+0xa34/0xc34 [ 53.342944][ T411] gfs2_aspace_writepage+0x548/0x710 [ 53.344416][ T411] __writepage+0x70/0x120 [ 53.345600][ T411] write_cache_pages+0x7c8/0xde4 [ 53.346931][ T411] do_writepages+0x3cc/0x578 [ 53.348229][ T411] filemap_fdatawrite_wbc+0x1d4/0x234 [ 53.349737][ T411] filemap_fdatawrite+0xb0/0xf4 [ 53.351044][ T411] gfs2_write_inode+0x2ec/0x3f4 [ 53.352340][ T411] __writeback_single_inode+0x560/0x11f0 [ 53.353869][ T411] writeback_sb_inodes+0x7fc/0x1378 [ 53.355315][ T411] __writeback_inodes_wb+0x110/0x394 [ 53.356739][ T411] wb_writeback+0x3ec/0xe44 [ 53.358002][ T411] wb_workfn+0xa7c/0xdd8 [ 53.359164][ T411] process_one_work+0x79c/0x1140 [ 53.360571][ T411] worker_thread+0x8f4/0x101c [ 53.361872][ T411] kthread+0x374/0x454 [ 53.363004][ T411] ret_from_fork+0x10/0x20 [ 53.364269][ T411] irq event stamp: 112220 [ 53.365412][ T411] hardirqs last enabled at (112219): [] lock_page_memcg+0x110/0x234 [ 53.368089][ T411] hardirqs last disabled at (112220): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 53.370901][ T411] softirqs last enabled at (112014): [] neigh_periodic_work+0xb58/0xc24 [ 53.373744][ T411] softirqs last disabled at (112010): [] neigh_periodic_work+0x104/0xc24 [ 53.376459][ T411] ---[ end trace 7ef5681d4d4474ee ]--- executing program [ 53.398379][ C1] ------------[ cut here ]------------ [ 53.399878][ C1] WARNING: CPU: 1 PID: 20 at include/linux/backing-dev.h:289 test_clear_page_writeback+0x8d0/0xacc [ 53.402665][ C1] Modules linked in: [ 53.403723][ C1] CPU: 1 PID: 20 Comm: ksoftirqd/1 Tainted: G W 5.15.185-syzkaller #0 [ 53.406299][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 53.409074][ C1] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 53.411208][ C1] pc : test_clear_page_writeback+0x8d0/0xacc [ 53.412843][ C1] lr : test_clear_page_writeback+0x8d0/0xacc [ 53.414502][ C1] sp : ffff80001b3879a0 [ 53.415643][ C1] x29: ffff80001b3879b0 x28: ffff0000cc338000 x27: fffffc00037dd388 [ 53.417865][ C1] x26: dfff800000000000 x25: 05ffc000000020b2 x24: 0000000000000000 [ 53.420054][ C1] x23: ffff0000c52a58e0 x22: 0000000000000001 x21: 0000000000000001 [ 53.422216][ C1] x20: ffff0000cb3ba250 x19: fffffc0003207ac0 x18: 0000000000000001 [ 53.424363][ C1] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 53.426500][ C1] x14: 00000000ffff8000 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 53.428595][ C1] x11: 0000000000000101 x10: 0000000000000000 x9 : ffff80000869fae8 [ 53.430761][ C1] x8 : ffff0000c0a78000 x7 : 0000000000000000 x6 : 0000000000000000 [ 53.432887][ C1] x5 : 0000000000000080 x4 : 0000000000000008 x3 : 0000000000000000 [ 53.435194][ C1] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 53.437389][ C1] Call trace: [ 53.438286][ C1] test_clear_page_writeback+0x8d0/0xacc [ 53.439865][ C1] end_page_writeback+0x174/0x488 [ 53.441197][ C1] end_buffer_async_write+0x340/0x56c [ 53.442684][ C1] end_bio_bh_io_sync+0xb0/0x1b4 [ 53.444015][ C1] bio_endio+0x744/0x788 [ 53.445191][ C1] blk_update_request+0x7a4/0x1100 [ 53.446533][ C1] blk_mq_end_request+0x54/0x88 [ 53.447881][ C1] lo_complete_rq+0x1ec/0x250 [ 53.449147][ C1] blk_done_softirq+0x11c/0x168 [ 53.450492][ C1] handle_softirqs+0x344/0xbf0 [ 53.451727][ C1] run_ksoftirqd+0x7c/0x2a0 [ 53.452920][ C1] smpboot_thread_fn+0x4b0/0x920 [ 53.454306][ C1] kthread+0x374/0x454 [ 53.455439][ C1] ret_from_fork+0x10/0x20 [ 53.456628][ C1] irq event stamp: 189907 [ 53.457815][ C1] hardirqs last enabled at (189906): [] lock_page_memcg+0x110/0x234 [ 53.460437][ C1] hardirqs last disabled at (189907): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 53.463197][ C1] softirqs last enabled at (189880): [] handle_softirqs+0xa4c/0xbf0 [ 53.465821][ C1] softirqs last disabled at (189885): [] run_ksoftirqd+0x7c/0x2a0 [ 53.468339][ C1] ---[ end trace 7ef5681d4d4474ef ]--- 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