Warning: Permanently added '10.128.0.46' (ED25519) to the list of known hosts. executing program [ 42.993418][ T4025] loop0: detected capacity change from 0 to 32768 [ 43.043477][ T4025] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 43.045818][ T4025] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 43.057415][ T4025] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 43.061493][ T21] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 43.064111][ T21] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 43.098549][ T21] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 34ms [ 43.102431][ T21] gfs2: fsid=syz:syz.0: jid=0: Done [ 43.104963][ T4025] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 43.194346][ T4025] 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 [ 47.227049][ T4029] ------------[ cut here ]------------ [ 47.228617][ T4029] WARNING: CPU: 1 PID: 4029 at include/linux/backing-dev.h:289 __set_page_dirty+0x938/0xc74 [ 47.231384][ T4029] Modules linked in: [ 47.232434][ T4029] CPU: 1 PID: 4029 Comm: gfs2_quotad Not tainted 5.15.185-syzkaller #0 [ 47.234741][ T4029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 47.237634][ T4029] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 47.239761][ T4029] pc : __set_page_dirty+0x938/0xc74 [ 47.241114][ T4029] lr : __set_page_dirty+0x938/0xc74 [ 47.242562][ T4029] sp : ffff80001f5177a0 [ 47.243642][ T4029] x29: ffff80001f5177b0 x28: ffff0000c21f4000 x27: 0000000000000000 [ 47.245800][ T4029] x26: dfff800000000000 x25: 1fffe00018a3c9d9 x24: 0000000000000000 [ 47.247978][ T4029] x23: ffff0000c51e4ec8 x22: 0000000000000000 x21: 0000000000000001 [ 47.250155][ T4029] x20: ffff0000d65497c0 x19: fffffc000346e980 x18: 0000000000000000 [ 47.252285][ T4029] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 47.254492][ T4029] x14: ffff0000c1edc080 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 47.256667][ T4029] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000869dba4 [ 47.258824][ T4029] x8 : ffff0000c1edb680 x7 : ffff80000869d2b0 x6 : 0000000000000000 [ 47.261044][ T4029] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000899ce68 [ 47.263196][ T4029] x2 : ffff0000cc1f8060 x1 : 0000000000000000 x0 : 0000000000000000 [ 47.265384][ T4029] Call trace: [ 47.266265][ T4029] __set_page_dirty+0x938/0xc74 [ 47.267594][ T4029] mark_buffer_dirty+0x27c/0x52c [ 47.268950][ T4029] gfs2_unpin+0x12c/0xc28 [ 47.270202][ T4029] buf_lo_after_commit+0x140/0x188 [ 47.271593][ T4029] gfs2_log_flush+0x13cc/0x2078 [ 47.272920][ T4029] do_sync+0x844/0xa4c [ 47.273982][ T4029] gfs2_quota_sync+0x2e8/0x548 [ 47.275242][ T4029] gfs2_quotad+0x304/0x700 [ 47.276435][ T4029] kthread+0x374/0x454 [ 47.277505][ T4029] ret_from_fork+0x10/0x20 [ 47.278676][ T4029] irq event stamp: 310 [ 47.279754][ T4029] hardirqs last enabled at (309): [] lock_page_memcg+0x110/0x234 [ 47.282253][ T4029] hardirqs last disabled at (310): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 47.284877][ T4029] softirqs last enabled at (52): [] handle_softirqs+0xa4c/0xbf0 [ 47.287347][ T4029] softirqs last disabled at (41): [] __irq_exit_rcu+0x240/0x440 [ 47.289838][ T4029] ---[ end trace 37505d86f7bdc86a ]--- 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 [ 52.253862][ T594] ------------[ cut here ]------------ [ 52.255502][ T594] WARNING: CPU: 1 PID: 594 at include/linux/backing-dev.h:289 __test_set_page_writeback+0xa34/0xc34 [ 52.258531][ T594] Modules linked in: [ 52.259557][ T594] CPU: 1 PID: 594 Comm: kworker/u4:5 Tainted: G W 5.15.185-syzkaller #0 [ 52.262198][ T594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 52.264930][ T594] Workqueue: writeback wb_workfn (flush-7:0) [ 52.266555][ T594] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 52.268688][ T594] pc : __test_set_page_writeback+0xa34/0xc34 [ 52.270344][ T594] lr : __test_set_page_writeback+0xa34/0xc34 [ 52.271953][ T594] sp : ffff80001faf6c00 [ 52.273058][ T594] x29: ffff80001faf6ce0 x28: 0000000000000000 x27: 0000000000000000 [ 52.275206][ T594] x26: ffff0000c51e4d20 x25: dfff800000000000 x24: 0000000000000000 [ 52.277416][ T594] x23: ffff0000d654a250 x22: fffffc00032288c8 x21: ffff80001faf6c60 [ 52.279579][ T594] x20: 1fffff8000645119 x19: fffffc00032288c0 x18: 0000000000000000 [ 52.281687][ T594] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 52.283822][ T594] x14: ffff0000c8482540 x13: ffff0000c84825e0 x12: 0000000000ff0100 [ 52.286128][ T594] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff8000086a0718 [ 52.288313][ T594] x8 : ffff0000c8481b40 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.290461][ T594] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086a0194 [ 52.292613][ T594] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 52.294778][ T594] Call trace: [ 52.295652][ T594] __test_set_page_writeback+0xa34/0xc34 [ 52.297188][ T594] gfs2_aspace_writepage+0x548/0x710 [ 52.298675][ T594] __writepage+0x70/0x120 [ 52.299831][ T594] write_cache_pages+0x7c8/0xde4 [ 52.301156][ T594] do_writepages+0x3cc/0x578 [ 52.302403][ T594] filemap_fdatawrite_wbc+0x1d4/0x234 [ 52.303902][ T594] filemap_fdatawrite+0xb0/0xf4 [ 52.305257][ T594] gfs2_write_inode+0x2ec/0x3f4 [ 52.306572][ T594] __writeback_single_inode+0x560/0x11f0 [ 52.308115][ T594] writeback_sb_inodes+0x7fc/0x1378 [ 52.309539][ T594] __writeback_inodes_wb+0x110/0x394 [ 52.311157][ T594] wb_writeback+0x3ec/0xe44 [ 52.312414][ T594] wb_workfn+0xa7c/0xdd8 [ 52.313533][ T594] process_one_work+0x79c/0x1140 [ 52.314867][ T594] worker_thread+0x8f4/0x101c [ 52.316200][ T594] kthread+0x374/0x454 [ 52.317295][ T594] ret_from_fork+0x10/0x20 [ 52.318476][ T594] irq event stamp: 692120 [ 52.319703][ T594] hardirqs last enabled at (692119): [] lock_page_memcg+0x110/0x234 [ 52.322414][ T594] hardirqs last disabled at (692120): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 52.325264][ T594] softirqs last enabled at (689402): [] handle_softirqs+0xa4c/0xbf0 [ 52.327896][ T594] softirqs last disabled at (689129): [] __irq_exit_rcu+0x240/0x440 [ 52.330541][ T594] ---[ end trace 37505d86f7bdc86b ]--- [ 52.355974][ C0] ------------[ cut here ]------------ [ 52.357556][ C0] WARNING: CPU: 0 PID: 14 at include/linux/backing-dev.h:289 test_clear_page_writeback+0x8d0/0xacc [ 52.360516][ C0] Modules linked in: [ 52.361534][ C0] CPU: 0 PID: 14 Comm: ksoftirqd/0 Tainted: G W 5.15.185-syzkaller #0 [ 52.364085][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 52.366700][ C0] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 52.368778][ C0] pc : test_clear_page_writeback+0x8d0/0xacc executing program [ 52.370389][ C0] lr : test_clear_page_writeback+0x8d0/0xacc [ 52.371998][ C0] sp : ffff80001b3179a0 [ 52.373165][ C0] x29: ffff80001b3179b0 x28: ffff0000cc1f8000 x27: fffffc0003871288 [ 52.375401][ C0] x26: dfff800000000000 x25: 05ffc000000020b2 x24: 0000000000000000 [ 52.377616][ C0] x23: ffff0000c51e4d20 x22: 0000000000000001 x21: 0000000000000001 [ 52.379851][ C0] x20: ffff0000d654a250 x19: fffffc00032288c0 x18: 0000000000000001 [ 52.382084][ C0] x17: 0000000000000000 x16: ffff8000082bdf08 x15: 0000000000000002 [ 52.384314][ C0] x14: 0000000000ff0100 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 52.386644][ C0] x11: 0000000000000101 x10: 0000000000000000 x9 : ffff80000869fae8 [ 52.388858][ C0] x8 : ffff0000c0959b40 x7 : 0000000000000000 x6 : 0000000000000000 [ 52.391031][ C0] x5 : 0000000000000080 x4 : 0000000000000008 x3 : 0000000000000000 [ 52.393225][ C0] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 52.395569][ C0] Call trace: [ 52.396512][ C0] test_clear_page_writeback+0x8d0/0xacc [ 52.398126][ C0] end_page_writeback+0x174/0x488 [ 52.399506][ C0] end_buffer_async_write+0x340/0x56c [ 52.400998][ C0] end_bio_bh_io_sync+0xb0/0x1b4 [ 52.402381][ C0] bio_endio+0x744/0x788 [ 52.403529][ C0] blk_update_request+0x7a4/0x1100 [ 52.404892][ C0] blk_mq_end_request+0x54/0x88 [ 52.406253][ C0] lo_complete_rq+0x1ec/0x250 [ 52.407521][ C0] blk_done_softirq+0x11c/0x168 [ 52.408861][ C0] handle_softirqs+0x344/0xbf0 [ 52.410196][ C0] run_ksoftirqd+0x7c/0x2a0 [ 52.411426][ C0] smpboot_thread_fn+0x4b0/0x920 [ 52.412784][ C0] kthread+0x374/0x454 [ 52.413999][ C0] ret_from_fork+0x10/0x20 [ 52.415357][ C0] irq event stamp: 223107 [ 52.416617][ C0] hardirqs last enabled at (223106): [] lock_page_memcg+0x110/0x234 [ 52.419315][ C0] hardirqs last disabled at (223107): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 52.422199][ C0] softirqs last enabled at (223096): [] handle_softirqs+0xa4c/0xbf0 [ 52.424952][ C0] softirqs last disabled at (223101): [] run_ksoftirqd+0x7c/0x2a0 [ 52.427715][ C0] ---[ end trace 37505d86f7bdc86c ]--- 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