[ 1.782934] ip (239) used greatest stack depth: 12392 bytes left [ 2.002738] ip (254) used greatest stack depth: 12344 bytes left [ 16.767369] ------------[ cut here ]------------ [ 16.767420] kernel BUG at net/core/skbuff.c:2813! [ 16.767464] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 16.767497] CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.8.0-rc6-virtme #1 [ 16.767550] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 16.767615] Workqueue: events mptcp_worker [ 16.767646] RIP: 0010:__pskb_pull_tail+0x475/0x4f0 [ 16.767681] Code: 44 24 10 e8 ed 38 83 ff 49 8b be c0 00 00 00 44 8b 44 24 10 41 8b 8e bc 00 00 00 e9 f4 fc ff ff 4c 8d 48 ff e9 41 fd ff ff 90 <0f> 0b 48 c7 44 24 10 00 00 00 00 e9 99 fe ff ff 41 f6 44 24 7e 20 [ 16.767779] RSP: 0018:ffffa0a6000e8dc8 EFLAGS: 00010282 [ 16.767814] RAX: 00000000fffffff2 RBX: 0000000000000014 RCX: 0000000000000014 [ 16.767860] RDX: ffff88b882745478 RSI: 0000000000000100 RDI: 0000000000000000 [ 16.767905] RBP: ffffa0a6000e8e08 R08: 00000000ffffffcc R09: 0000000000000008 [ 16.767951] R10: ffff88b8840fb0c8 R11: 0000000000000014 R12: ffff88b8840fb000 [ 16.767996] R13: 0000000000000014 R14: ffff88b881b49500 R15: 0000000000000002 [ 16.768043] FS: 0000000000000000(0000) GS:ffff88b8bec80000(0000) knlGS:0000000000000000 [ 16.768088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 16.768125] CR2: 00007ff68a89e920 CR3: 0000000002570002 CR4: 0000000000770ef0 [ 16.768171] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 16.768215] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 16.768260] PKRU: 55555554 [ 16.768279] Call Trace: [ 16.768296] [ 16.768315] ? die+0x37/0x90 [ 16.768345] ? do_trap+0xe4/0x110 [ 16.768370] ? __pskb_pull_tail+0x475/0x4f0 [ 16.768396] ? do_error_trap+0x65/0x80 [ 16.768421] ? __pskb_pull_tail+0x475/0x4f0 [ 16.768447] ? exc_invalid_op+0x53/0x70 [ 16.768475] ? __pskb_pull_tail+0x475/0x4f0 [ 16.768501] ? asm_exc_invalid_op+0x1a/0x20 [ 16.768527] ? __pskb_pull_tail+0x475/0x4f0 [ 16.768552] ? __pskb_pull_tail+0x80/0x4f0 [ 16.768578] tcp_v4_early_demux+0x146/0x190 [ 16.768606] ip_rcv_finish_core.constprop.0+0x401/0x460 [ 16.768643] ip_rcv+0xdc/0x170 [ 16.768670] ? ip_protocol_deliver_rcu+0x32/0x160 [ 16.768702] __netif_receive_skb_one_core+0x8b/0xa0 [ 16.768736] process_backlog+0xa4/0x150 [ 16.768764] __napi_poll+0x29/0x1c0 [ 16.768791] net_rx_action+0x298/0x300 [ 16.768815] __do_softirq+0xc2/0x294 [ 16.768842] do_softirq+0x43/0x60 [ 16.768869] [ 16.768887] [ 16.768901] __local_bh_enable_ip+0x60/0x70 [ 16.768926] __dev_queue_xmit+0x328/0xcf0 [ 16.768952] ? nf_hook_slow+0x40/0xf0 [ 16.768978] ip_finish_output2+0x26f/0x4f0 [ 16.769006] __ip_queue_xmit+0x180/0x430 [ 16.769032] __tcp_transmit_skb+0xa4e/0xb80 [ 16.769060] tcp_connect+0xb22/0xee0 [ 16.769087] tcp_v4_connect+0x421/0x500 [ 16.769114] __inet_stream_connect+0xd8/0x3d0 [ 16.769149] inet_stream_connect+0x3b/0x60 [ 16.769172] kernel_connect+0x52/0x80 [ 16.769204] ? mptcp_crypto_key_sha+0x3e/0x80 [ 16.769238] __mptcp_subflow_connect+0x27c/0x380 [ 16.769273] mptcp_pm_nl_add_addr_received+0x282/0x370 [ 16.769309] ? sk_stream_write_space+0x7f/0xf0 [ 16.769343] ? mptcp_release_cb+0x32f/0x340 [ 16.769369] ? sk_stream_write_space+0x7f/0xf0 [ 16.769401] mptcp_pm_nl_work+0x67/0x110 [ 16.769437] mptcp_worker+0x54/0x510 [ 16.769463] process_one_work+0x138/0x2f0 [ 16.769488] worker_thread+0x2f4/0x400 [ 16.769514] ? __pfx_worker_thread+0x10/0x10 [ 16.769545] kthread+0xd7/0x100 [ 16.769571] ? __pfx_kthread+0x10/0x10 [ 16.769596] ret_from_fork+0x31/0x50 [ 16.769622] ? __pfx_kthread+0x10/0x10 [ 16.769647] ret_from_fork_asm+0x1b/0x30 [ 16.769674] [ 16.769691] Modules linked in: xt_mark nft_compat nf_tables [ 16.769728] ---[ end trace 0000000000000000 ]--- [ 16.769761] RIP: 0010:__pskb_pull_tail+0x475/0x4f0 [ 16.769793] Code: 44 24 10 e8 ed 38 83 ff 49 8b be c0 00 00 00 44 8b 44 24 10 41 8b 8e bc 00 00 00 e9 f4 fc ff ff 4c 8d 48 ff e9 41 fd ff ff 90 <0f> 0b 48 c7 44 24 10 00 00 00 00 e9 99 fe ff ff 41 f6 44 24 7e 20 [ 16.769893] RSP: 0018:ffffa0a6000e8dc8 EFLAGS: 00010282 [ 16.769933] RAX: 00000000fffffff2 RBX: 0000000000000014 RCX: 0000000000000014 [ 16.769978] RDX: ffff88b882745478 RSI: 0000000000000100 RDI: 0000000000000000 [ 16.770023] RBP: ffffa0a6000e8e08 R08: 00000000ffffffcc R09: 0000000000000008 [ 16.770068] R10: ffff88b8840fb0c8 R11: 0000000000000014 R12: ffff88b8840fb000 [ 16.770112] R13: 0000000000000014 R14: ffff88b881b49500 R15: 0000000000000002 [ 16.770158] FS: 0000000000000000(0000) GS:ffff88b8bec80000(0000) knlGS:0000000000000000 [ 16.770203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 16.770240] CR2: 00007ff68a89e920 CR3: 0000000002570002 CR4: 0000000000770ef0 [ 16.770286] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 16.770330] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 16.770375] PKRU: 55555554 [ 16.770388] Kernel panic - not syncing: Fatal exception in interrupt [ 16.770548] Kernel Offset: 0x22c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 16.770609] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr