[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] help with horrible network failures
> I've got two machines running identical versions of xen & > linux. One of > them constantly has problems under high network loads > (70-100% httperf > loads). This is using xen-unstable checked out on or about > Feb 13. Any > clues? See below for details. One machine exhibits the bug, the other doesn't? How similar is the h/w? Can you reproduce with a single high-rate TCP stream? Do you have any of the iptables/netfilter connection tracking stuff in your kernel? Can you reproduce with an older version of Xen? Ian > Rob > > > KERNEL: assertion (flags & MSG_PEEK) failed at net/ipv4/tcp.c (1284) > (this messager sometimes repeated dozens of times...) > Followed by: > Unable to handle kernel paging request at virtual address a02e19e0 > printing eip: > c0115fad > *pde = ma 00000000 pa 55555000 > [<c0116b21>] __wake_up_common+0x41/0x60 > [<c0116b8c>] __wake_up+0x4c/0xb0 > [<c023d2d9>] sock_def_wakeup+0x49/0x50 > [<c026a9d9>] tcp_rcv_state_process+0x749/0x970 > [<c02723d6>] tcp_v4_do_rcv+0xa6/0x130 > [<c0272a18>] tcp_v4_rcv+0x5b8/0x850 > [<c02158b7>] add_timer_randomness+0x107/0x130 > [<c025740b>] ip_local_deliver+0xab/0x160 > [<c02577ea>] ip_rcv+0x32a/0x460 > [<c0210bf0>] memmove+0x50/0x60 > [<c0244553>] netif_receive_skb+0x133/0x1c0 > [<c0238601>] netif_poll+0x301/0x660 > [<c023de84>] kfree_skbmem+0x24/0x30 > [<c0244815>] net_rx_action+0xb5/0x1a0 > [<c011f545>] __do_softirq+0xc5/0xf0 > [<c011f5fa>] do_softirq+0x8a/0x90 > [<c0136355>] irq_exit+0x35/0x40 > [<c010e262>] do_IRQ+0x22/0x30 > [<c0106048>] evtchn_do_upcall+0xa8/0x110 > [<c0109dc7>] hypervisor_callback+0x37/0x40 > Oops: 0000 [#1] > PREEMPT > Modules linked in: > CPU: 0 > EIP: 0061:[<c0115fad>] Not tainted VLI > EFLAGS: 00010202 (2.6.10-xenU) > EIP is at try_to_wake_up+0x1d/0xf0 > eax: c033d860 ebx: a02e19e0 ecx: 00000001 edx: c2403d88 > esi: c527dc98 edi: 00000000 ebp: c2403d98 esp: c2403d7c > ds: 007b es: 007b ss: 0069 > Process httpd (pid: 7900, threadinfo=c2402000 task=c41c7a60) > Stack: a02e19e0 c2403d88 00000004 00000001 00000000 c527dc98 00000000 > c2403dbc > c0116b21 a02e19e0 00000001 00000000 00000000 00000000 > 00000000 > c2402000 > c2403de8 c0116b8c c527dc98 00000001 00000000 00000000 > 00000000 > 00000000 > Call Trace: > [<c0116b21>] __wake_up_common+0x41/0x60 > [<c0116b8c>] __wake_up+0x4c/0xb0 > [<c023d2d9>] sock_def_wakeup+0x49/0x50 > [<c026a9d9>] tcp_rcv_state_process+0x749/0x970 > [<c02723d6>] tcp_v4_do_rcv+0xa6/0x130 > [<c0272a18>] tcp_v4_rcv+0x5b8/0x850 > [<c02158b7>] add_timer_randomness+0x107/0x130 > [<c025740b>] ip_local_deliver+0xab/0x160 > [<c02577ea>] ip_rcv+0x32a/0x460 > [<c0210bf0>] memmove+0x50/0x60 > [<c0244553>] netif_receive_skb+0x133/0x1c0 > [<c0238601>] netif_poll+0x301/0x660 > [<c023de84>] kfree_skbmem+0x24/0x30 > [<c0244815>] net_rx_action+0xb5/0x1a0 > [<c011f545>] __do_softirq+0xc5/0xf0 > [<c011f5fa>] do_softirq+0x8a/0x90 > [<c0136355>] irq_exit+0x35/0x40 > [<c010e262>] do_IRQ+0x22/0x30 > [<c0106048>] evtchn_do_upcall+0xa8/0x110 > [<c0109dc7>] hypervisor_callback+0x37/0x40 > Code: 28 00 00 00 00 8b 5d fc 89 ec 5d c3 89 f6 55 89 e5 57 > 8d 45 f0 31 > ff 56 53 > 83 ec 1 0 8b 5d 08 89 44 24 04 89 1c 24 e8 33 fc ff ff > <8b> 13 89 c6 > 8b 45 0c > 85 d0 74 4d 8b 43 28 85 c0 75 40 83 fa 02 > <0>Kernel panic - not syncing: Fatal exception in interrupt > > > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from > real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/xen-devel > ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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