Warning: Permanently added '10.128.1.15' (ECDSA) to the list of known hosts. executing program [ 83.603355][ T8457] loop0: detected capacity change from 0 to 512 [ 83.620681][ T8457] EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended [ 83.634535][ T8457] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none. 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 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 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 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 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 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 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 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 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 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 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 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 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 88.698148][ T25] ------------[ cut here ]------------ [ 88.704508][ T25] Trying to write to read-only block-device loop0 (partno 0) [ 88.715263][ T25] WARNING: CPU: 1 PID: 25 at block/blk-core.c:704 submit_bio_checks+0x1627/0x1aa0 [ 88.725976][ T25] Modules linked in: [ 88.731508][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.13.0-rc2-next-20210518-syzkaller #0 executing program [ 88.744605][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.761574][ T25] Workqueue: writeback wb_workfn (flush-7:0) [ 88.769816][ T25] RIP: 0010:submit_bio_checks+0x1627/0x1aa0 executing program [ 88.778773][ T25] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 2b 43 fe ff 48 c7 c7 c0 0b e1 89 48 89 c6 44 89 e2 e8 f4 c0 1f 05 <0f> 0b e9 6b f3 ff ff e8 0d d5 b9 fd e8 68 63 61 05 31 ff 89 c3 89 [ 88.829123][ T25] RSP: 0018:ffffc90000dff108 EFLAGS: 00010286 [ 88.845093][ T25] RAX: 0000000000000000 RBX: ffff88801ea28000 RCX: 0000000000000000 [ 88.862175][ T25] RDX: ffff88801244d580 RSI: ffffffff815dbea5 RDI: fffff520001bfe13 executing program [ 88.875200][ T25] RBP: ffff888017d49500 R08: 0000000000000000 R09: 0000000000000000 [ 88.904058][ T25] R10: ffffffff815d5cee R11: 0000000000000000 R12: 0000000000000000 [ 88.926972][ T25] R13: ffff888017d49510 R14: ffff88801ad24500 R15: ffff88801ea28574 [ 88.939309][ T25] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 executing program [ 88.952315][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.977719][ T25] CR2: 00000000004d15c0 CR3: 000000002ee5c000 CR4: 00000000001506e0 executing program executing program [ 88.996320][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.017506][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.029240][ T25] Call Trace: [ 89.035463][ T25] ? __lock_acquire+0xb3a/0x5230 [ 89.043453][ T25] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 89.054355][ T25] submit_bio_noacct+0x81/0xf20 [ 89.060669][ T25] ? blk_queue_enter+0xb60/0xb60 [ 89.066656][ T25] ? lock_downgrade+0x6e0/0x6e0 [ 89.075260][ T25] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 89.084290][ T25] ? __bio_add_page+0x377/0x500 [ 89.093342][ T25] submit_bio+0x1ea/0x470 [ 89.099419][ T25] ? submit_bio_noacct+0xf20/0xf20 executing program [ 89.104608][ T25] submit_bh_wbc+0x5eb/0x7f0 [ 89.112779][ T25] __block_write_full_page+0x879/0x1360 [ 89.119055][ T25] ? bdev_evict_inode+0x470/0x470 [ 89.124314][ T25] block_write_full_page+0x14d/0x190 [ 89.130927][ T25] ? bdev_evict_inode+0x470/0x470 [ 89.136871][ T25] __writepage+0x60/0x180 [ 89.143314][ T25] write_cache_pages+0x754/0x1190 executing program [ 89.152699][ T25] ? tag_pages_for_writeback+0x440/0x440 [ 89.159202][ T25] ? clear_page_dirty_for_io+0xa40/0xa40 [ 89.165146][ T25] ? __wb_calc_thresh+0xee/0x3f0 [ 89.174417][ T25] ? __lock_acquire+0x16a7/0x5230 [ 89.181848][ T25] ? blkdev_readahead+0x20/0x20 [ 89.188037][ T25] generic_writepages+0xe2/0x150 [ 89.193677][ T25] ? write_cache_pages+0x1190/0x1190 executing program [ 89.201226][ T25] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 89.211897][ T25] do_writepages+0xec/0x290 [ 89.216654][ T25] ? writeback_set_ratelimit+0x150/0x150 [ 89.237150][ T25] ? lock_downgrade+0x6e0/0x6e0 [ 89.242237][ T25] ? writeback_sb_inodes+0x3a6/0xf00 executing program executing program [ 89.267194][ T25] __writeback_single_inode+0x126/0xff0 [ 89.273556][ T25] ? wbc_attach_and_unlock_inode+0x111/0x9d0 [ 89.284444][ T25] writeback_sb_inodes+0x53d/0xf00 [ 89.291146][ T25] ? sync_inode_metadata+0xd0/0xd0 [ 89.299652][ T25] __writeback_inodes_wb+0xc6/0x280 [ 89.305024][ T25] wb_writeback+0x814/0xc50 executing program [ 89.329767][ T25] ? __writeback_inodes_wb+0x280/0x280 [ 89.335441][ T25] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 89.354828][ T25] ? cpumask_next+0xa4/0xf0 [ 89.360555][ T25] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 89.368997][ T25] ? get_nr_dirty_inodes+0x16f/0x210 [ 89.374592][ T25] wb_workfn+0xa4b/0x12d0 executing program [ 89.382520][ T25] ? inode_wait_for_writeback+0x30/0x30 [ 89.389850][ T25] ? lock_release+0x720/0x720 [ 89.396090][ T25] process_one_work+0x98d/0x1600 [ 89.417214][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 89.423182][ T25] ? rwlock_bug.part.0+0x90/0x90 executing program [ 89.439752][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 89.452059][ T25] worker_thread+0x64c/0x1120 [ 89.464444][ T25] ? process_one_work+0x1600/0x1600 [ 89.471492][ T25] kthread+0x3b1/0x4a0 [ 89.476362][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 89.483747][ T25] ret_from_fork+0x1f/0x30 [ 89.489552][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 89.496486][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.13.0-rc2-next-20210518-syzkaller #0 [ 89.506330][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.516907][ T25] Workqueue: writeback wb_workfn (flush-7:0) [ 89.523048][ T25] Call Trace: [ 89.526357][ T25] dump_stack_lvl+0x13e/0x1d6 [ 89.531088][ T25] panic+0x306/0x73d [ 89.535502][ T25] ? __warn_printk+0xf3/0xf3 [ 89.540601][ T25] ? __warn.cold+0x1a/0x44 [ 89.545084][ T25] ? submit_bio_checks+0x1627/0x1aa0 [ 89.550602][ T25] __warn.cold+0x35/0x44 [ 89.554919][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 89.560350][ T25] ? submit_bio_checks+0x1627/0x1aa0 [ 89.565692][ T25] report_bug+0x1bd/0x210 [ 89.570082][ T25] handle_bug+0x3c/0x60 [ 89.574940][ T25] exc_invalid_op+0x14/0x40 [ 89.580466][ T25] asm_exc_invalid_op+0x12/0x20 [ 89.585881][ T25] RIP: 0010:submit_bio_checks+0x1627/0x1aa0 [ 89.592540][ T25] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 2b 43 fe ff 48 c7 c7 c0 0b e1 89 48 89 c6 44 89 e2 e8 f4 c0 1f 05 <0f> 0b e9 6b f3 ff ff e8 0d d5 b9 fd e8 68 63 61 05 31 ff 89 c3 89 [ 89.614461][ T25] RSP: 0018:ffffc90000dff108 EFLAGS: 00010286 [ 89.620954][ T25] RAX: 0000000000000000 RBX: ffff88801ea28000 RCX: 0000000000000000 [ 89.630371][ T25] RDX: ffff88801244d580 RSI: ffffffff815dbea5 RDI: fffff520001bfe13 [ 89.639356][ T25] RBP: ffff888017d49500 R08: 0000000000000000 R09: 0000000000000000 [ 89.648352][ T25] R10: ffffffff815d5cee R11: 0000000000000000 R12: 0000000000000000 [ 89.657092][ T25] R13: ffff888017d49510 R14: ffff88801ad24500 R15: ffff88801ea28574 [ 89.666669][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 89.673071][ T25] ? vprintk+0x95/0x260 [ 89.677696][ T25] ? submit_bio_checks+0x1627/0x1aa0 [ 89.683387][ T25] ? __lock_acquire+0xb3a/0x5230 [ 89.688562][ T25] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 89.696164][ T25] submit_bio_noacct+0x81/0xf20 [ 89.702121][ T25] ? blk_queue_enter+0xb60/0xb60 [ 89.707523][ T25] ? lock_downgrade+0x6e0/0x6e0 [ 89.712916][ T25] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 89.720250][ T25] ? __bio_add_page+0x377/0x500 [ 89.725589][ T25] submit_bio+0x1ea/0x470 [ 89.730528][ T25] ? submit_bio_noacct+0xf20/0xf20 [ 89.736510][ T25] submit_bh_wbc+0x5eb/0x7f0 [ 89.741769][ T25] __block_write_full_page+0x879/0x1360 [ 89.748321][ T25] ? bdev_evict_inode+0x470/0x470 [ 89.753580][ T25] block_write_full_page+0x14d/0x190 [ 89.760407][ T25] ? bdev_evict_inode+0x470/0x470 [ 89.766231][ T25] __writepage+0x60/0x180 [ 89.771567][ T25] write_cache_pages+0x754/0x1190 [ 89.778227][ T25] ? tag_pages_for_writeback+0x440/0x440 [ 89.784908][ T25] ? clear_page_dirty_for_io+0xa40/0xa40 [ 89.791012][ T25] ? __wb_calc_thresh+0xee/0x3f0 [ 89.796807][ T25] ? __lock_acquire+0x16a7/0x5230 [ 89.802531][ T25] ? blkdev_readahead+0x20/0x20 [ 89.808069][ T25] generic_writepages+0xe2/0x150 [ 89.813229][ T25] ? write_cache_pages+0x1190/0x1190 [ 89.819270][ T25] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 89.825877][ T25] do_writepages+0xec/0x290 [ 89.830482][ T25] ? writeback_set_ratelimit+0x150/0x150 [ 89.836844][ T25] ? lock_downgrade+0x6e0/0x6e0 [ 89.842364][ T25] ? writeback_sb_inodes+0x3a6/0xf00 [ 89.848095][ T25] __writeback_single_inode+0x126/0xff0 [ 89.854258][ T25] ? wbc_attach_and_unlock_inode+0x111/0x9d0 [ 89.861008][ T25] writeback_sb_inodes+0x53d/0xf00 [ 89.867086][ T25] ? sync_inode_metadata+0xd0/0xd0 [ 89.873068][ T25] __writeback_inodes_wb+0xc6/0x280 [ 89.879441][ T25] wb_writeback+0x814/0xc50 [ 89.884213][ T25] ? __writeback_inodes_wb+0x280/0x280 [ 89.890212][ T25] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 89.896625][ T25] ? cpumask_next+0xa4/0xf0 [ 89.901718][ T25] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 89.907768][ T25] ? get_nr_dirty_inodes+0x16f/0x210 [ 89.913657][ T25] wb_workfn+0xa4b/0x12d0 [ 89.918559][ T25] ? inode_wait_for_writeback+0x30/0x30 [ 89.924324][ T25] ? lock_release+0x720/0x720 [ 89.929601][ T25] process_one_work+0x98d/0x1600 [ 89.935249][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 89.941143][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 89.947035][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 89.953267][ T25] worker_thread+0x64c/0x1120 [ 89.959209][ T25] ? process_one_work+0x1600/0x1600 [ 89.965416][ T25] kthread+0x3b1/0x4a0 [ 89.970016][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 89.976333][ T25] ret_from_fork+0x1f/0x30 [ 89.981965][ T25] Kernel Offset: disabled [ 89.988201][ T25] Rebooting in 86400 seconds..