From mboxrd@z Thu Jan 1 00:00:00 1970 From: Diwaker Gupta Subject: kernel panic: fatal exception in interrupt Date: Wed, 20 Jul 2005 17:55:42 -0700 Message-ID: <891be9410507201755524086f8@mail.gmail.com> Reply-To: Diwaker Gupta Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Hi everyone, I'm tracking xen-unstable (hg) -- this is using a checkout from 2 days back. Its a P4, dual processor (but we run nosmp), has a Broadcom 5782 NetXtreme Gigabit ethernet card. A VM boots up fine, I can ping it, SSH into it. I got this exception while trying to run some benchmarks using httperf (the VM is running Apache). I can consistent crash the kernel, but it doesn't always happen at the same time -- sometimes after 2 seconds, sometimes after 5 seconds. The webserver is not loaded (this particular dump is from a run where I was sending a measly 50 req/sec). Has anyone seen something similar recently? Diwaker =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Unable to handle kernel paging request at virtual address 74736f48 printing eip: c03a92ff *pde =3D ma 00000000 pa 55555000 Oops: 0000 [#1] PREEMPT Modules linked in: iptable_filter ip_tables video thermal processor fan button battery ac CPU: 0 EIP: 0061:[] Not tainted VLI EFLAGS: 00010293 (2.6.12-xen0) EIP is at skb_release_data+0x4f/0xec eax: 65707474 ebx: 00000000 ecx: ce497080 edx: 74736f48 esi: ce468280 edi: ce468280 ebp: c059a800 esp: c051fc74 ds: 007b es: 007b ss: 0069 Process swapper (pid: 0, threadinfo=3Dc051e000 task=3Dc0488680) Stack: c04d7180 ce468280 ce468280 c03a9445 ce468280 06be6012 c03a93ac ce468= 280 ced87620 ced87620 c02c1009 ce468280 0000001d 00000000 06be6012 00000= 042 00000001 00000013 00000042 0000e497 ced87620 ced87400 99ebd6a5 00000= 0e1 Call Trace: [] __kfree_skb+0x83/0x136 [] kfree_skbmem+0x10/0x26 [] net_rx_action+0x234/0x4e9 [] br_nf_pre_routing_finish+0x139/0x39a [] br_handle_frame_finish+0x0/0x127 [] br_forward_finish+0x0/0x66 [] br_handle_frame_finish+0x92/0x127 [] br_nf_pre_routing_finish+0x139/0x39a [] br_handle_frame_finish+0x0/0x127 [] nf_iterate+0x58/0x84 [] br_nf_pre_routing_finish+0x0/0x39a [] br_nf_pre_routing_finish+0x0/0x39a [] nf_hook_slow+0x76/0x12a [] br_nf_pre_routing_finish+0x0/0x39a [] br_handle_frame_finish+0x0/0x127 [] br_nf_pre_routing+0x302/0x471 [] br_nf_pre_routing_finish+0x0/0x39a [] nf_iterate+0x58/0x84 [] br_handle_frame_finish+0x0/0x127 [] br_handle_frame_finish+0x0/0x127 [] nf_hook_slow+0x76/0x12a [] br_handle_frame_finish+0x0/0x127 [] br_handle_frame+0x1b0/0x249 [] br_handle_frame_finish+0x0/0x127 [] netif_receive_skb+0x118/0x235 [] tg3_rx+0x2c5/0x48a [] tg3_restart_ints+0x25/0x97 [] tg3_poll+0x1ba/0x2c8 [] tasklet_action+0x74/0x10d [] __do_softirq+0x6c/0xf5 [] do_softirq+0x64/0x77 [] irq_exit+0x36/0x38 [] do_IRQ+0x22/0x28 [] evtchn_do_upcall+0x60/0x86 [] hypervisor_callback+0x2c/0x34 [] xen_idle+0x32/0x6b [] cpu_idle+0x32/0x47 [] rest_init+0x24/0x37 [] init+0x0/0x110 [] start_kernel+0x1b0/0x206 [] unknown_bootoption+0x0/0x1f6 Code: 00 f7 d8 89 c2 0f c1 01 01 d0 85 c0 74 0c 83 c4 10 5b 5e c3 8b 8e a8 00 00 00 8b 41 04 85 c0 74 32 31 db 39 c3 eb 2a 8b 54 d9 10 <8b> 02 f6 c4 08 75 19 8b 42 04 83 c0 01 74 59 83 42 04 ff 0f 98 <0>Kernel panic - not syncing: Fatal exception in interrupt =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --=20 Web/Blog/Gallery: http://floatingsun.net