Warning: Permanently added '10.128.0.70' (ECDSA) to the list of known hosts. syzkaller login: [ 30.489549] IPVS: ftp: loaded support on port[0] = 21 executing program [ 30.626326] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 30.635854] gfs2: fsid=syz:syz: Now mounting FS... [ 30.652460] gfs2: fsid=syz:syz.0: journal 0 mapped with 4 extents [ 30.659062] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 30.665189] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 30.675520] gfs2: fsid=syz:syz.0: jid=0: Done [ 30.681394] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 30.737802] gfs2: fsid=syz:syz.0: found 1 quota changes [ 30.766732] ------------[ cut here ]------------ [ 30.771694] WARNING: CPU: 1 PID: 7965 at include/linux/backing-dev.h:335 account_page_dirtied+0x8df/0xbb0 [ 30.781415] Kernel panic - not syncing: panic_on_warn set ... [ 30.781415] [ 30.788771] CPU: 1 PID: 7965 Comm: syz-executor320 Not tainted 4.14.304-syzkaller #0 [ 30.796642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 30.805996] Call Trace: [ 30.808579] dump_stack+0x1b2/0x281 [ 30.812195] panic+0x1f9/0x42d [ 30.815370] ? add_taint.cold+0x16/0x16 [ 30.819343] ? account_page_dirtied+0x8df/0xbb0 [ 30.824012] ? account_page_dirtied+0x8df/0xbb0 [ 30.828655] __warn.cold+0x20/0x44 [ 30.832177] ? ist_end_non_atomic+0x10/0x10 [ 30.836491] ? account_page_dirtied+0x8df/0xbb0 [ 30.841163] report_bug+0x208/0x250 [ 30.844805] do_error_trap+0x195/0x2d0 [ 30.848679] ? math_error+0x2d0/0x2d0 [ 30.852473] ? trace_hardirqs_on+0x10/0x10 [ 30.856780] ? trace_hardirqs_on+0x10/0x10 [ 30.861014] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.865840] invalid_op+0x1b/0x40 [ 30.870231] RIP: 0010:account_page_dirtied+0x8df/0xbb0 [ 30.875504] RSP: 0018:ffff8880941cf778 EFLAGS: 00010097 [ 30.880867] RAX: ffff888096968640 RBX: ffff8880af3d6380 RCX: 1ffffffff127a700 [ 30.888126] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000082 [ 30.895397] RBP: ffff8880b1f3f4a8 R08: ffffffff8b9a7930 R09: 00000000000c0238 [ 30.902673] R10: ffff888096968f68 R11: ffff888096968640 R12: ffffea000292e100 [ 30.909926] R13: ffff8880b1f3f318 R14: ffff8880b1f3f318 R15: ffffea000292e120 [ 30.917235] ? account_page_dirtied+0x8df/0xbb0 [ 30.921893] __set_page_dirty+0x77/0x2a0 [ 30.925936] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.931368] mark_buffer_dirty+0x307/0x480 [ 30.935590] gfs2_unpin+0xc7/0xeb0 [ 30.939113] buf_lo_after_commit+0x12d/0x1f0 [ 30.948205] ? gfs2_unpin+0xeb0/0xeb0 [ 30.952072] gfs2_log_flush+0x7fc/0x1ad0 [ 30.956116] ? gfs2_log_shutdown+0x3d0/0x3d0 [ 30.961294] ? mark_held_locks+0xa6/0xf0 [ 30.965338] ? kfree+0x14a/0x250 [ 30.968682] ? do_sync+0x466/0xba0 [ 30.972201] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 30.977197] do_sync+0x4bb/0xba0 [ 30.980546] ? do_qc+0x5f0/0x5f0 [ 30.983898] gfs2_quota_sync+0x4f1/0x690 [ 30.987958] gfs2_sync_fs+0x40/0xa0 [ 30.991569] ? gfs2_show_options+0xb50/0xb50 [ 30.995972] sync_filesystem+0xe2/0x230 [ 30.999929] generic_shutdown_super+0x70/0x370 [ 31.004491] kill_block_super+0x95/0xe0 [ 31.008443] gfs2_kill_sb+0x12c/0x1a0 [ 31.012227] deactivate_locked_super+0x6c/0xd0 [ 31.016792] deactivate_super+0x7f/0xa0 [ 31.020745] cleanup_mnt+0x186/0x2c0 [ 31.024442] task_work_run+0x11f/0x190 [ 31.028312] do_exit+0xa44/0x2850 [ 31.031768] ? __do_page_fault+0x571/0xad0 [ 31.035992] ? mm_update_next_owner+0x5b0/0x5b0 [ 31.040651] ? lock_downgrade+0x740/0x740 [ 31.044806] do_group_exit+0x100/0x2e0 [ 31.048692] SyS_exit_group+0x19/0x20 [ 31.052475] ? do_group_exit+0x2e0/0x2e0 [ 31.056517] do_syscall_64+0x1d5/0x640 [ 31.061283] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 31.067416] RIP: 0033:0x7fbf5f3109c9 [ 31.071741] RSP: 002b:00007fff9b181a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 31.079881] RAX: ffffffffffffffda RBX: 00007fbf5f3a5330 RCX: 00007fbf5f3109c9 [ 31.087137] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 31.094386] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 000000000001f6db [ 31.101638] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbf5f3a5330 [ 31.109676] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 31.117301] Kernel Offset: disabled [ 31.120974] Rebooting in 86400 seconds..