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Date: Mon, 16 Jun 2014 19:04:50 -0400 From: Dave Jones <davej@...hat.com> To: David Miller <davem@...emloft.net> Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, therbert@...gle.com Subject: Re: [GIT] Networking On Sun, Jun 15, 2014 at 07:33:12PM -0700, David Miller wrote: > 1) Fix checksumming regressions, from Tom Herbert. Something still not right for me here. After about 5 minutes, I get an oops and then instant reboot/lock up. I haven't managed to get a trace over usb-serial because it seems to crash before it completes. Hand transcribed one looks like.. rbp: ffff880236403970 r08: 0000000000000000 r09: 0000000000000000 r10: 000000000000005a r11: 00000000000002d7 f12: ffff880233000d80 r13: ffff8800aa1a6fc2 r14: ffff880233001d40 f15: 00000000ffffac82 fs: 0 fs: ffff880236400000 knlGS: 0 CS: 10 DS: 0 ES: 0 CR0: 80050033 CR2: ffff8800aa1a8000 CR3: 1a0d000 CR4: 407f0 Stack: ffff880236403988 ffffffff81298bbc 00000000000016c0 ffff8802364039e8 ffffffff814ca05a ffff880233001d40 000005a80000e397 ffff880233001680 0000000000000000 0d420685ffffac82 000000000000012a 000000000000004e Call Trace: <IRQ> csum_partial tcp_gso_segment inet_gso_segment ? update_dl_migration skb_mac_gso_segment __skb_gso_segment dev_hard_start_xmit sch_direct_xmit __dev_queue_xmit ? dev_hard_start_xmit dev_queue_xmit ip_finish_output ? ip_output ip_output ip_forward_finish ip_forward ip_rcv_finish ip_rcv __netif_receive_skb_core ? __netif_receive_skb_core ? trace_hardirqs_on __netif_receive_skb netif_receive_skb_internal napi_gro_complete ? napi_gro_complete dev_gro_receive ? dev_gro_receive napi_gro_receive rtl8169_poll net_rx_action __do_softirq irq_exit do_IRQ common_interrupt <EOI> cpuidle_enter_state cpuidle_enter cpu_startup_entry rest_init ? csum_partial_copy_generic start_kernel RIP: do_csum+0x83/0x180 Code: 41 89 d2 74 45 89 d1 45 31 c0 48 89 fa 0f 1f 00 48 03 02 48 13 42 08 48 13 42 10 48 13 42 20 48 13 42 28 48 13 42 30 <48> 13 42 38 4c 11 c0 48 83 c2 40 83 e9 01 75 d5 41 83 ea 01 49 All code ======== 0: 41 89 d2 mov %edx,%r10d 3: 74 45 je 0x4a 5: 89 d1 mov %edx,%ecx 7: 45 31 c0 xor %r8d,%r8d a: 48 89 fa mov %rdi,%rdx d: 0f 1f 00 nopl (%rax) 10: 48 03 02 add (%rdx),%rax 13: 48 13 42 08 adc 0x8(%rdx),%rax 17: 48 13 42 10 adc 0x10(%rdx),%rax 1b: 48 13 42 20 adc 0x20(%rdx),%rax 1f: 48 13 42 28 adc 0x28(%rdx),%rax 23: 48 13 42 30 adc 0x30(%rdx),%rax 27:* 48 13 42 38 adc 0x38(%rdx),%rax <-- trapping instruction 2b: 4c 11 c0 adc %r8,%rax 2e: 48 83 c2 40 add $0x40,%rdx 32: 83 e9 01 sub $0x1,%ecx 35: 75 d5 jne 0xc 37: 41 83 ea 01 sub $0x1,%r10d 3b: 49 rex.WB Typical, rdx and rax had scrolled off the screen. I'll hobble some of the dump_stack output and see if I can get something useful. It's a two nic (both 8169's) box doing ip-masq and firewall duties. Dave -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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