[ 19.619389][ T3695] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 19.664980][ T148] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 19.672927][ T736] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.43' (ED25519) to the list of known hosts. executing program syzkaller login: [ 42.270558][ T4022] loop0: detected capacity change from 0 to 32768 [ 42.390290][ T4022] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 42.392890][ T4022] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 42.411247][ T4022] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [ 42.415506][ T1959] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 42.417516][ T1959] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 42.465239][ T1959] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 47ms [ 42.467785][ T1959] gfs2: fsid=syz:syz.0: jid=0: Done [ 42.469761][ T4022] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 42.600259][ T4022] ------------[ cut here ]------------ [ 42.601817][ T4022] WARNING: CPU: 0 PID: 4022 at include/linux/backing-dev.h:289 __set_page_dirty+0x938/0xc74 [ 42.604564][ T4022] Modules linked in: [ 42.605632][ T4022] CPU: 0 PID: 4022 Comm: syz-executor341 Not tainted 5.15.185-syzkaller #0 [ 42.608043][ T4022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 42.610842][ T4022] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 42.613027][ T4022] pc : __set_page_dirty+0x938/0xc74 [ 42.614479][ T4022] lr : __set_page_dirty+0x938/0xc74 [ 42.615931][ T4022] sp : ffff80001f0a7760 [ 42.617096][ T4022] x29: ffff80001f0a7770 x28: ffff0000d7a20000 x27: 0000000000000000 [ 42.619326][ T4022] x26: dfff800000000000 x25: 1fffe00018a3c9d9 x24: 0000000000000000 [ 42.621563][ T4022] x23: ffff0000c51e4ec8 x22: 0000000000000000 x21: 0000000000000001 [ 42.623810][ T4022] x20: ffff0000cd25e250 x19: fffffc00035bfe00 x18: 0000000000000002 [ 42.626034][ T4022] x17: ffff800016cf0000 x16: ffff8000082bdf08 x15: ffff8000167d04c0 [ 42.628195][ T4022] x14: ffff0000c2088a00 x13: ffff0000c2088a78 x12: 0000000000ff0100 [ 42.630451][ T4022] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff80000869dba4 [ 42.632671][ T4022] x8 : ffff0000c2088000 x7 : 0000000000000000 x6 : 0000000000000000 [ 42.634858][ T4022] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80000899ce68 [ 42.637063][ T4022] x2 : ffff0000cb822060 x1 : 0000000000000000 x0 : 0000000000000000 [ 42.639243][ T4022] Call trace: [ 42.640155][ T4022] __set_page_dirty+0x938/0xc74 [ 42.641489][ T4022] mark_buffer_dirty+0x27c/0x52c [ 42.642859][ T4022] gfs2_unpin+0x12c/0xc28 [ 42.644071][ T4022] buf_lo_after_commit+0x140/0x188 [ 42.645416][ T4022] gfs2_log_flush+0x13cc/0x2078 [ 42.646813][ T4022] gfs2_kill_sb+0x5c/0xd4 [ 42.648030][ T4022] deactivate_locked_super+0xb8/0x13c [ 42.649550][ T4022] deactivate_super+0xf8/0x118 [ 42.650804][ T4022] cleanup_mnt+0x3a4/0x458 [ 42.652034][ T4022] __cleanup_mnt+0x20/0x30 [ 42.653246][ T4022] task_work_run+0x12c/0x1e0 [ 42.654497][ T4022] do_exit+0x67c/0x1f58 [ 42.655615][ T4022] do_group_exit+0x100/0x268 [ 42.656871][ T4022] __wake_up_parent+0x0/0x60 [ 42.658161][ T4022] invoke_syscall+0x98/0x2b8 [ 42.659453][ T4022] el0_svc_common+0x138/0x258 [ 42.660800][ T4022] do_el0_svc+0x58/0x14c [ 42.661958][ T4022] el0_svc+0x78/0x1e0 [ 42.663047][ T4022] el0t_64_sync_handler+0xcc/0xe4 [ 42.664449][ T4022] el0t_64_sync+0x1a0/0x1a4 [ 42.665683][ T4022] irq event stamp: 146396 [ 42.666864][ T4022] hardirqs last enabled at (146395): [] lock_page_memcg+0x110/0x234 [ 42.669490][ T4022] hardirqs last disabled at (146396): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 42.672272][ T4022] softirqs last enabled at (146036): [] handle_softirqs+0xa4c/0xbf0 [ 42.674908][ T4022] softirqs last disabled at (146029): [] __irq_exit_rcu+0x240/0x440 [ 42.677580][ T4022] ---[ end trace 936fe983ed43a1ff ]--- [ 42.679583][ T4022] ------------[ cut here ]------------ [ 42.681047][ T4022] WARNING: CPU: 0 PID: 4022 at include/linux/backing-dev.h:289 __test_set_page_writeback+0xa34/0xc34 [ 42.683980][ T4022] Modules linked in: [ 42.685021][ T4022] CPU: 0 PID: 4022 Comm: syz-executor341 Tainted: G W 5.15.185-syzkaller #0 [ 42.687723][ T4022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 42.690522][ T4022] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 42.692707][ T4022] pc : __test_set_page_writeback+0xa34/0xc34 [ 42.694364][ T4022] lr : __test_set_page_writeback+0xa34/0xc34 [ 42.696035][ T4022] sp : ffff80001f0a7140 [ 42.697223][ T4022] x29: ffff80001f0a7220 x28: 0000000000000000 x27: 0000000000000000 [ 42.699394][ T4022] x26: ffff0000c51e4d20 x25: dfff800000000000 x24: 0000000000000000 [ 42.701580][ T4022] x23: ffff0000cd25e250 x22: fffffc00035bfe08 x21: ffff80001f0a71a0 [ 42.703730][ T4022] x20: 1fffff80006b7fc1 x19: fffffc00035bfe00 x18: 0000000000000000 [ 42.705879][ T4022] x17: 0000000000000000 x16: ffff8000082bdf08 x15: 0000000000000406 [ 42.708029][ T4022] x14: 0000000000ff0100 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 42.710237][ T4022] x11: 0000000000000001 x10: 0000000000000000 x9 : ffff8000086a0718 [ 42.712387][ T4022] x8 : ffff0000c2088000 x7 : ffff8000086a00cc x6 : 0000000000000000 [ 42.714612][ T4022] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000086a0194 [ 42.716776][ T4022] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 42.718993][ T4022] Call trace: [ 42.719923][ T4022] __test_set_page_writeback+0xa34/0xc34 [ 42.721456][ T4022] gfs2_aspace_writepage+0x548/0x710 [ 42.722912][ T4022] __writepage+0x70/0x120 [ 42.724086][ T4022] write_cache_pages+0x7c8/0xde4 [ 42.725443][ T4022] generic_writepages+0xf4/0x160 [ 42.726830][ T4022] gfs2_ail1_flush+0x884/0xeac [ 42.728151][ T4022] empty_ail1_list+0x100/0x1d4 [ 42.729394][ T4022] gfs2_log_flush+0x16c0/0x2078 [ 42.730711][ T4022] gfs2_kill_sb+0x5c/0xd4 [ 42.731841][ T4022] deactivate_locked_super+0xb8/0x13c [ 42.733270][ T4022] deactivate_super+0xf8/0x118 [ 42.734548][ T4022] cleanup_mnt+0x3a4/0x458 [ 42.735735][ T4022] __cleanup_mnt+0x20/0x30 [ 42.736924][ T4022] task_work_run+0x12c/0x1e0 [ 42.738155][ T4022] do_exit+0x67c/0x1f58 [ 42.739285][ T4022] do_group_exit+0x100/0x268 [ 42.740576][ T4022] __wake_up_parent+0x0/0x60 [ 42.741856][ T4022] invoke_syscall+0x98/0x2b8 [ 42.743054][ T4022] el0_svc_common+0x138/0x258 [ 42.744304][ T4022] do_el0_svc+0x58/0x14c [ 42.745496][ T4022] el0_svc+0x78/0x1e0 [ 42.746586][ T4022] el0t_64_sync_handler+0xcc/0xe4 [ 42.747982][ T4022] el0t_64_sync+0x1a0/0x1a4 [ 42.749188][ T4022] irq event stamp: 146434 [ 42.750351][ T4022] hardirqs last enabled at (146433): [] lock_page_memcg+0x110/0x234 [ 42.752960][ T4022] hardirqs last disabled at (146434): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 42.755702][ T4022] softirqs last enabled at (146416): [] handle_softirqs+0xa4c/0xbf0 [ 42.758282][ T4022] softirqs last disabled at (146399): [] __irq_exit_rcu+0x240/0x440 [ 42.760845][ T4022] ---[ end trace 936fe983ed43a200 ]--- [ 42.763519][ C1] ------------[ cut here ]------------ [ 42.765136][ C1] WARNING: CPU: 1 PID: 20 at include/linux/backing-dev.h:289 test_clear_page_writeback+0x8d0/0xacc [ 42.768070][ C1] Modules linked in: [ 42.769144][ C1] CPU: 1 PID: 20 Comm: ksoftirqd/1 Tainted: G W 5.15.185-syzkaller #0 [ 42.771748][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 42.774504][ C1] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 42.776690][ C1] pc : test_clear_page_writeback+0x8d0/0xacc [ 42.778285][ C1] lr : test_clear_page_writeback+0x8d0/0xacc [ 42.779992][ C1] sp : ffff80001b3879a0 [ 42.781122][ C1] x29: ffff80001b3879b0 x28: ffff0000cb822000 x27: fffffc00035bfe48 [ 42.783349][ C1] x26: dfff800000000000 x25: 05ffc00000002030 x24: 0000000000000000 [ 42.785490][ C1] x23: ffff0000c51e4d20 x22: 0000000000000001 x21: 0000000000000001 [ 42.787648][ C1] x20: ffff0000cd25e250 x19: fffffc00035bfe00 x18: 0000000000000001 [ 42.789928][ C1] x17: 0000000000000000 x16: ffff8000082bdf08 x15: 0000000000000002 [ 42.792142][ C1] x14: 0000000000ff0100 x13: 1ffff0000282c06b x12: 0000000000ff0100 [ 42.794286][ C1] x11: 0000000000000101 x10: 0000000000000000 x9 : ffff80000869fae8 [ 42.796407][ C1] x8 : ffff0000c0a78000 x7 : 0000000000000000 x6 : 0000000000000000 [ 42.798586][ C1] x5 : 0000000000000080 x4 : 0000000000000008 x3 : 0000000000000000 [ 42.800795][ C1] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 42.802962][ C1] Call trace: [ 42.803848][ C1] test_clear_page_writeback+0x8d0/0xacc [ 42.805352][ C1] end_page_writeback+0x174/0x488 [ 42.806707][ C1] end_buffer_async_write+0x340/0x56c [ 42.808175][ C1] end_bio_bh_io_sync+0xb0/0x1b4 [ 42.809493][ C1] bio_endio+0x744/0x788 [ 42.810646][ C1] blk_update_request+0x7a4/0x1100 [ 42.812051][ C1] blk_mq_end_request+0x54/0x88 [ 42.813358][ C1] lo_complete_rq+0x1ec/0x250 [ 42.814726][ C1] blk_done_softirq+0x11c/0x168 [ 42.816036][ C1] handle_softirqs+0x344/0xbf0 [ 42.817299][ C1] run_ksoftirqd+0x7c/0x2a0 [ 42.818492][ C1] smpboot_thread_fn+0x4b0/0x920 [ 42.819826][ C1] kthread+0x374/0x454 [ 42.820908][ C1] ret_from_fork+0x10/0x20 [ 42.822101][ C1] irq event stamp: 265049 [ 42.823266][ C1] hardirqs last enabled at (265048): [] lock_page_memcg+0x110/0x234 [ 42.825896][ C1] hardirqs last disabled at (265049): [] _raw_spin_lock_irqsave+0xfc/0x14c [ 42.828638][ C1] softirqs last enabled at (265038): [] handle_softirqs+0xa4c/0xbf0 [ 42.831251][ C1] softirqs last disabled at (265043): [] run_ksoftirqd+0x7c/0x2a0 [ 42.833826][ C1] ---[ end trace 936fe983ed43a201 ]---