netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 19143 at net/core/dev.c:8859 dev_xdp_uninstall net/core/dev.c:8859 [inline] WARNING: CPU: 0 PID: 19143 at net/core/dev.c:8859 rollback_registered_many+0xe71/0x1210 net/core/dev.c:9279 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 19143 Comm: syz-executor.0 Not tainted 5.9.0-rc3-syzkaller #0 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+0x198/0x1fd lib/dump_stack.c:118 panic+0x347/0x7c0 kernel/panic.c:231 __warn.cold+0x20/0x46 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:dev_xdp_uninstall net/core/dev.c:8859 [inline] RIP: 0010:rollback_registered_many+0xe71/0x1210 net/core/dev.c:9279 Code: 90 22 00 00 48 c7 c6 a0 3d ff 88 48 c7 c7 e0 3d ff 88 c6 05 0b 03 70 04 01 e8 ed 79 07 fb 0f 0b e9 db f7 ff ff e8 bf 9b 36 fb <0f> 0b e9 48 fe ff ff 48 89 ef e9 a2 fb ff ff e8 ab 9b 36 fb 0f b6 RSP: 0018:ffffc900059a7428 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888060b8cbb8 RCX: ffffc90006399000 RDX: 0000000000040000 RSI: ffffffff863dd891 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8a7ece67 R10: 0000000000000000 R11: 0000000000000001 R12: 00000000fffffff0 R13: ffff888060b8c000 R14: dffffc0000000000 R15: ffffc900010a6000 rollback_registered net/core/dev.c:9329 [inline] unregister_netdevice_queue+0x2dd/0x570 net/core/dev.c:10410 unregister_netdevice include/linux/netdevice.h:2794 [inline] nsim_destroy+0x35/0x70 drivers/net/netdevsim/netdev.c:339 __nsim_dev_port_del+0x144/0x1e0 drivers/net/netdevsim/dev.c:946 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:959 [inline] nsim_dev_reload_destroy+0xff/0x1e0 drivers/net/netdevsim/dev.c:1135 nsim_dev_reload_down+0x6e/0xd0 drivers/net/netdevsim/dev.c:712 devlink_reload+0xc1/0x3a0 net/core/devlink.c:2974 devlink_nl_cmd_reload+0x346/0x820 net/core/devlink.c:3009 genl_family_rcv_msg_doit net/netlink/genetlink.c:669 [inline] genl_family_rcv_msg net/netlink/genetlink.c:714 [inline] genl_rcv_msg+0x61d/0x980 net/netlink/genetlink.c:731 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470 genl_rcv+0x24/0x40 net/netlink/genetlink.c:742 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9898291c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000000285c0 RCX: 000000000045d5b9 RDX: 0000000000000000 RSI: 0000000020000800 RDI: 0000000000000006 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007fff03b5cc3f R14: 00007f98982929c0 R15: 000000000118cf4c Kernel Offset: disabled Rebooting in 86400 seconds..