[ 1.932397] netdevsim netdevsim468 eni468np1: renamed from eth0 [ 2.028297] netdevsim netdevsim566 eni566np1: renamed from eth1 [ 2.256654] Could not find device with ifindex 2000 in netnsfd 11 [ 2.256985] Could not find netns with fd: 2000 [ 2.257092] Cannot link a netdevsim to itself [ 2.257210] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint). [ 2.820442] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.820533] #PF: supervisor write access in kernel mode [ 2.820579] #PF: error_code(0x0002) - not-present page [ 2.820619] PGD 0 P4D 0 [ 2.820646] Oops: Oops: 0002 [#1] SMP [ 2.820685] CPU: 2 UID: 0 PID: 227 Comm: peer.sh Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.820768] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.820819] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.820874] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 2.821022] RSP: 0018:ffff9cadc03fbae8 EFLAGS: 00010046 [ 2.821070] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 000000008010000c [ 2.821131] RDX: ffff9cadc03fbb20 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.821192] RBP: ffff9cadc03fbb20 R08: 0000000000000001 R09: ffffffff97535300 [ 2.821251] R10: ffff914f4345d800 R11: 0000000000000001 R12: 0000000000000000 [ 2.821319] R13: ffff9cadc03fbc18 R14: 0000000000000020 R15: 0000000000000000 [ 2.821382] FS: 00007f2ba2667000(0000) GS:ffff914fe66d9000(0000) knlGS:0000000000000000 [ 2.821449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.821505] CR2: 0000000000000000 CR3: 000000000502c003 CR4: 0000000000772ef0 [ 2.821567] PKRU: 55555554 [ 2.821586] Call Trace: [ 2.821608] [ 2.821636] __cancel_work+0x29/0xe0 [ 2.821671] __cancel_work_sync+0x16/0x80 [ 2.821708] __dev_close_many+0x113/0x2b0 [ 2.821751] netif_close_many+0x98/0x160 [ 2.821780] unregister_netdevice_many_notify+0x10c/0xaa0 [ 2.821828] unregister_netdevice_queue+0xa0/0xe0 [ 2.821874] nsim_destroy+0x7e/0x180 [netdevsim] [ 2.821926] __nsim_dev_port_del+0x47/0x70 [netdevsim] [ 2.821972] nsim_dev_reload_destroy+0x5b/0x120 [netdevsim] [ 2.822019] nsim_drv_remove+0x2f/0xb0 [netdevsim] [ 2.822066] device_release_driver_internal+0x193/0x200 [ 2.822120] bus_remove_device+0xc1/0x100 [ 2.822157] device_del+0x15f/0x480 [ 2.822194] device_unregister+0x12/0x30 [ 2.822230] del_device_store+0x117/0x1a0 [netdevsim] [ 2.822278] kernfs_fop_write_iter+0x12b/0x1c0 [ 2.822332] vfs_write+0x33a/0x470 [ 2.822374] ksys_write+0x65/0xe0 [ 2.822411] do_syscall_64+0xa4/0xfd0 [ 2.822448] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.822496] RIP: 0033:0x7f2ba2767257 [ 2.822533] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 2.822672] RSP: 002b:00007ffdbde7fa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 2.822733] RAX: ffffffffffffffda RBX: 00007f2ba2863780 RCX: 00007f2ba2767257 [ 2.822793] RDX: 0000000000000004 RSI: 0000559d245203b0 RDI: 0000000000000001 [ 2.822854] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f2ba2819d20 [ 2.822914] R10: 00007f2ba2819c20 R11: 0000000000000246 R12: 0000000000000004 [ 2.822980] R13: 0000559d245203b0 R14: 0000000000000004 R15: 00007f2ba285e9c0 [ 2.823042] [ 2.823061] Modules linked in: netdevsim [ 2.823099] CR2: 0000000000000000 [ 2.823129] ---[ end trace 0000000000000000 ]--- [ 2.823169] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.823216] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 2.823358] RSP: 0018:ffff9cadc03fbae8 EFLAGS: 00010046 [ 2.823398] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 000000008010000c [ 2.823458] RDX: ffff9cadc03fbb20 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.823525] RBP: ffff9cadc03fbb20 R08: 0000000000000001 R09: ffffffff97535300 [ 2.823585] R10: ffff914f4345d800 R11: 0000000000000001 R12: 0000000000000000 [ 2.823646] R13: ffff9cadc03fbc18 R14: 0000000000000020 R15: 0000000000000000 [ 2.823711] FS: 00007f2ba2667000(0000) GS:ffff914fe66d9000(0000) knlGS:0000000000000000 [ 2.823779] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.823843] CR2: 0000000000000000 CR3: 000000000502c003 CR4: 0000000000772ef0 [ 2.823905] PKRU: 55555554 [ 2.823931] note: peer.sh[227] exited with irqs disabled WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr