batman_adv: batadv0: Interface activated: batadv_slave_1 IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 ------------[ cut here ]------------ batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! WARNING: CPU: 0 PID: 9422 at fs/btrfs/qgroup.c:3095 btrfs_qgroup_free_meta+0x3db/0x4d0 fs/btrfs/qgroup.c:3095 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9422 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! RIP: 0010:btrfs_qgroup_free_meta+0x3db/0x4d0 fs/btrfs/qgroup.c:3095 RSP: 0018:ffff88805cf27348 EFLAGS: 00010206 RAX: 0000000000040000 RBX: ffff88805aea8380 RCX: ffffc900069b9000 RDX: 0000000000003800 RSI: ffffffff82b3af0b RDI: ffff88805aea8ca0 RBP: 0000000000001000 R08: ffffffff8b9ad230 R09: 0000000000000002 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 R10: 0000000000000000 R11: ffff88805cf1c300 R12: ffff88805c384580 R13: 0000000000000005 R14: ffff88805aea88d8 R15: 0000000000000002 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 start_transaction+0x637/0xf30 fs/btrfs/transaction.c:609 btrfs_dirty_inode+0x166/0x1d0 fs/btrfs/inode.c:6243 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! btrfs_update_time+0x1ab/0x280 fs/btrfs/inode.c:6276 update_time fs/inode.c:1673 [inline] touch_atime+0x1ed/0x250 fs/inode.c:1745 file_accessed include/linux/fs.h:2077 [inline] generic_file_buffered_read mm/filemap.c:2210 [inline] generic_file_read_iter+0x12a3/0x21c0 mm/filemap.c:2273 IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready call_read_iter include/linux/fs.h:1774 [inline] new_sync_read fs/read_write.c:401 [inline] __vfs_read+0x449/0x620 fs/read_write.c:413 batman_adv: batadv0: Interface activated: batadv_slave_0 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready integrity_kernel_read+0x11b/0x1b0 security/integrity/iint.c:199 IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:381 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:410 [inline] ima_calc_file_hash+0x3ee/0x780 security/integrity/ima/ima_crypto.c:467 ima_collect_measurement+0x39d/0x430 security/integrity/ima/ima_api.c:227 IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready process_measurement+0x78b/0xb20 security/integrity/ima/ima_main.c:264 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready BTRFS error (device loop2): fail to start transaction for status update: -28 do_last fs/namei.c:3435 [inline] path_openat+0x10ad/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f2cac55f0c9 RSP: 002b:00007f2caaad1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f2cac67ef80 RCX: 00007f2cac55f0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280 RBP: 00007f2cac5baae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc0250917f R14: 00007f2caaad1300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..