IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 8021q: adding VLAN 0 to HW filter on device team0 ------------[ cut here ]------------ generic_make_request: Trying to write to read-only block-device loop0 (partno 0) WARNING: CPU: 1 PID: 8121 at block/blk-core.c:2170 bio_check_ro block/blk-core.c:2167 [inline] WARNING: CPU: 1 PID: 8121 at block/blk-core.c:2170 generic_make_request_checks+0xef9/0x26c0 block/blk-core.c:2272 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8121 Comm: syz-executor0 Not tainted 4.20.0-rc3+ #251 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 __warn.cold.8+0x20/0x45 kernel/panic.c:540 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969 RIP: 0010:bio_check_ro block/blk-core.c:2167 [inline] RIP: 0010:generic_make_request_checks+0xef9/0x26c0 block/blk-core.c:2272 Code: 8b ad e4 04 00 00 4c 8d b5 78 ff ff ff 48 89 df 4c 89 f6 e8 99 93 07 00 48 c7 c7 60 2b 5f 88 48 89 c6 44 89 ea e8 d7 d3 cf fd <0f> 0b e9 c1 f4 ff ff e8 6b 73 06 fe e8 26 4b f0 fd e8 61 73 06 fe RSP: 0018:ffff8881d91ae3c0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8881c37c7340 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8165eaf5 RDI: 0000000000000005 RBP: ffff8881d91ae6c0 R08: ffff8881b6800340 R09: ffffed103b5e5020 R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: ffff8881c37c7348 R13: 0000000000000000 R14: ffff8881d91ae638 R15: ffff8881d195a000 generic_make_request+0x2c7/0x18a0 block/blk-core.c:2395 submit_bio+0xba/0x460 block/blk-core.c:2560 submit_bh_wbc+0x5de/0x790 fs/buffer.c:3087 __block_write_full_page+0x93b/0x14a0 fs/buffer.c:1765 block_write_full_page+0x221/0x270 fs/buffer.c:2955 blkdev_writepage+0x24/0x30 fs/block_dev.c:567 __writepage+0x69/0xe0 mm/page-writeback.c:2289 write_cache_pages+0xc91/0x1e20 mm/page-writeback.c:2230 generic_writepages+0xda/0x150 mm/page-writeback.c:2313 blkdev_writepages+0x1d/0x30 fs/block_dev.c:1957 do_writepages+0x9a/0x1a0 mm/page-writeback.c:2328 __filemap_fdatawrite_range+0x364/0x4a0 mm/filemap.c:411 __filemap_fdatawrite mm/filemap.c:419 [inline] filemap_fdatawrite mm/filemap.c:424 [inline] filemap_write_and_wait+0x44/0xc0 mm/filemap.c:594 __sync_blockdev fs/block_dev.c:449 [inline] sync_blockdev fs/block_dev.c:458 [inline] __blkdev_put+0x202/0x830 fs/block_dev.c:1789 blkdev_put+0x98/0x540 fs/block_dev.c:1858 blkdev_close+0x8b/0xb0 fs/block_dev.c:1865 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x1ad6/0x26d0 kernel/exit.c:867 do_group_exit+0x177/0x440 kernel/exit.c:970 __do_sys_exit_group kernel/exit.c:981 [inline] __se_sys_exit_group kernel/exit.c:979 [inline] __ia32_sys_exit_group+0x3e/0x50 kernel/exit.c:979 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f29a29 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:000000000845fd7c EFLAGS: 00000202 ORIG_RAX: 00000000000000fc RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000805544b RBP: 00000000fffffff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..