IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready Bluetooth: hci0 command 0x0419 tx timeout device veth0_macvtap entered promiscuous mode ------------[ cut here ]------------ IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready WARNING: CPU: 1 PID: 9385 at include/linux/backing-dev.h:335 inode_to_wb include/linux/backing-dev.h:335 [inline] WARNING: CPU: 1 PID: 9385 at include/linux/backing-dev.h:335 account_page_dirtied+0x8df/0xbb0 mm/page-writeback.c:2437 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9385 Comm: syz-executor.0 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 device veth1_macvtap entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready __warn.cold+0x20/0x44 kernel/panic.c:547 IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready 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 IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready 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:inode_to_wb include/linux/backing-dev.h:335 [inline] RIP: 0010:account_page_dirtied+0x8df/0xbb0 mm/page-writeback.c:2437 RSP: 0018:ffff8880467ef588 EFLAGS: 00010046 RAX: 0000000000040000 RBX: ffff8880af3914c0 RCX: ffffc90005bf8000 RDX: 0000000000040000 RSI: ffffffff816b4bbf RDI: 0000000000000082 RBP: ffff8880a5831428 R08: ffffffff8ba7046c R09: 00000000000021e8 R10: 0000000000000001 R11: ffff8880467e4640 R12: ffffea00025af140 R13: ffff8880a5831298 R14: ffff8880a5831298 R15: ffffea00025af160 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 __set_page_dirty+0x77/0x2a0 fs/buffer.c:634 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 mark_buffer_dirty+0x307/0x480 fs/buffer.c:1173 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! gfs2_unpin+0xc7/0xeb0 fs/gfs2/lops.c:107 buf_lo_after_commit+0x12d/0x1f0 fs/gfs2/lops.c:510 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 lops_after_commit fs/gfs2/lops.h:64 [inline] gfs2_log_flush+0x7fc/0x1ad0 fs/gfs2/log.c:759 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 gfs2_write_inode+0x2f4/0x460 fs/gfs2/super.c:759 write_inode fs/fs-writeback.c:1241 [inline] __writeback_single_inode+0x6a4/0x1010 fs/fs-writeback.c:1439 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! writeback_single_inode+0x1f3/0x370 fs/fs-writeback.c:1493 IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready sync_inode fs/fs-writeback.c:2494 [inline] sync_inode_metadata+0x79/0xa0 fs/fs-writeback.c:2514 gfs2_fsync+0x1c8/0x2f0 fs/gfs2/file.c:669 batman_adv: batadv0: Interface activated: batadv_slave_0 vfs_fsync_range+0x103/0x260 fs/sync.c:196 generic_write_sync include/linux/fs.h:2684 [inline] generic_file_write_iter+0x410/0x650 mm/filemap.c:3212 gfs2_file_write_iter+0x2db/0x3b0 fs/gfs2/file.c:720 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 call_write_iter include/linux/fs.h:1780 [inline] do_iter_readv_writev+0x4cf/0x5f0 fs/read_write.c:675 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:3f) already exists on: batadv_slave_1 do_iter_write+0x152/0x550 fs/read_write.c:954 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! vfs_writev+0x125/0x290 fs/read_write.c:999 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 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:3f) already exists on: batadv_slave_1 do_pwritev fs/read_write.c:1088 [inline] SYSC_pwritev2 fs/read_write.c:1147 [inline] SyS_pwritev2+0x195/0x230 fs/read_write.c:1138 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! RIP: 0033:0x7fee3de8f0d9 RSP: 002b:00007fee3c401168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007fee3dfaef80 RCX: 00007fee3de8f0d9 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00007fee3deeaae9 R08: 0000000000000408 R09: 0000000000000003 IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000 batman_adv: batadv0: Interface activated: batadv_slave_1 R13: 00007ffcc435671f R14: 00007fee3c401300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..