8021q: adding VLAN 0 to HW filter on device batadv0
IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
generic_make_request: Trying to write to read-only block-device nbd0 (partno 0)
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
WARNING: CPU: 0 PID: 6587 at block/blk-core.c:2161 bio_check_ro block/blk-core.c:2158 [inline]
WARNING: CPU: 0 PID: 6587 at block/blk-core.c:2161 generic_make_request_checks+0xffe/0x1ea0 block/blk-core.c:2263
IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6587 Comm: syz-executor.5 Not tainted 4.18.0-rc7+ #1
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+0x109/0x15a lib/dump_stack.c:113
 panic+0x1c6/0x36b kernel/panic.c:184
 __warn.cold.8+0x120/0x168 kernel/panic.c:536
 report_bug+0x1a4/0x200 lib/bug.c:186
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x200/0x350 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:bio_check_ro block/blk-core.c:2158 [inline]
RIP: 0010:generic_make_request_checks+0xffe/0x1ea0 block/blk-core.c:2263
IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
Code: 48 8d b5 78 ff ff ff 4c 89 ff 89 95 40 ff ff ff e8 87 c8 05 00 8b 95 40 ff ff ff 48 c7 c7 00 49 fc 86 48 89 c6 e8 75 e9 5d fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 
RSP: 0018:ffff880092e8fa88 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 1ffff100125d1f5b RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff89a22960
RBP: ffff880092e8fb80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800a47570c0
R13: ffff8800a0e557b0 R14: ffff8800a0e55788 R15: ffff8800a0e55780
IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready
 generic_make_request+0x1c0/0xe30 block/blk-core.c:2387
IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready
hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
 submit_bio+0x9f/0x400 block/blk-core.c:2552
hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
 submit_bio_wait+0x108/0x1b0 block/bio.c:1004
 blkdev_issue_flush+0x1e1/0x2c0 block/blk-flush.c:553
 blkdev_fsync+0x70/0xc0 fs/block_dev.c:633
 vfs_fsync_range+0xee/0x220 fs/sync.c:197
 vfs_fsync fs/sync.c:211 [inline]
 do_fsync+0x38/0x70 fs/sync.c:221
 __do_sys_fdatasync fs/sync.c:234 [inline]
 __se_sys_fdatasync fs/sync.c:232 [inline]
 __x64_sys_fdatasync+0x31/0x40 fs/sync.c:232
 do_syscall_64+0xd0/0x4d0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4597c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007efd2f2f8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004597c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007efd2f2f96d4
R13: 00000000004c005d R14: 00000000004d1e50 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..