From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Gardner Subject: help with horrible network failures Date: Tue, 01 Mar 2005 14:06:47 -0700 Message-ID: <4224D967.3050904@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel List-Id: xen-devel@lists.xenproject.org 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. 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 [] __wake_up_common+0x41/0x60 [] __wake_up+0x4c/0xb0 [] sock_def_wakeup+0x49/0x50 [] tcp_rcv_state_process+0x749/0x970 [] tcp_v4_do_rcv+0xa6/0x130 [] tcp_v4_rcv+0x5b8/0x850 [] add_timer_randomness+0x107/0x130 [] ip_local_deliver+0xab/0x160 [] ip_rcv+0x32a/0x460 [] memmove+0x50/0x60 [] netif_receive_skb+0x133/0x1c0 [] netif_poll+0x301/0x660 [] kfree_skbmem+0x24/0x30 [] net_rx_action+0xb5/0x1a0 [] __do_softirq+0xc5/0xf0 [] do_softirq+0x8a/0x90 [] irq_exit+0x35/0x40 [] do_IRQ+0x22/0x30 [] evtchn_do_upcall+0xa8/0x110 [] hypervisor_callback+0x37/0x40 Oops: 0000 [#1] PREEMPT Modules linked in: CPU: 0 EIP: 0061:[] 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: [] __wake_up_common+0x41/0x60 [] __wake_up+0x4c/0xb0 [] sock_def_wakeup+0x49/0x50 [] tcp_rcv_state_process+0x749/0x970 [] tcp_v4_do_rcv+0xa6/0x130 [] tcp_v4_rcv+0x5b8/0x850 [] add_timer_randomness+0x107/0x130 [] ip_local_deliver+0xab/0x160 [] ip_rcv+0x32a/0x460 [] memmove+0x50/0x60 [] netif_receive_skb+0x133/0x1c0 [] netif_poll+0x301/0x660 [] kfree_skbmem+0x24/0x30 [] net_rx_action+0xb5/0x1a0 [] __do_softirq+0xc5/0xf0 [] do_softirq+0x8a/0x90 [] irq_exit+0x35/0x40 [] do_IRQ+0x22/0x30 [] evtchn_do_upcall+0xa8/0x110 [] 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