From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Bruin Subject: Re: just a dump Date: Thu, 21 May 2009 13:03:17 +0200 Message-ID: <4A1534F5.6000100@xs4all.nl> References: <4A09E620.3040300@xs4all.nl> <4A09F62A.8010203@xs4all.nl> <20090515144923.GA6304@amt.cnet> <4A0E7B81.6070203@xs4all.nl> <20090516131046.GB3153@amt.cnet> <4A152B7C.4080401@xs4all.nl> <4A152E9B.3060500@xs4all.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: Marcelo Tosatti , kvm@vger.kernel.org Return-path: Received: from smtp-vbr16.xs4all.nl ([194.109.24.36]:4305 "EHLO smtp-vbr16.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752063AbZEULCQ (ORCPT ); Thu, 21 May 2009 07:02:16 -0400 In-Reply-To: <4A152E9B.3060500@xs4all.nl> Sender: kvm-owner@vger.kernel.org List-ID: Hans de Bruin wrote: > Hans de Bruin wrote: >> Marcelo Tosatti wrote: >>> On Sat, May 16, 2009 at 10:38:25AM +0200, Hans de Bruin wrote: >>>> I ran memtest for 11 hours and it completed 4.7 passes with no >>>> problems. >>>> But then memtest is about cpu and memmory interaction. If the >>>> problem is disk related there is also disk/chipset/dma and memmory >>>> interaction. I could degrade my system by turning dma on disk io >>>> off, or i could have a closer look at kvm-autotest. >>> >>> Hans, >>> >>> It would be helpful if you can capture a few more KVM oopses, then. >>> >> >> >> v2.6.30-rc6-144-g5805977 >> kvm-86-122-ge2478f5 >> kvm from kernel >> simultaneously booting two w2k8. >> One vm dies: > > another one. This time the vm where booted sequentialy: > just for fun single winxp over nfs and wireless (really slow): [ 978.108416] kvm: emulating exchange as write [ 1083.639299] CE: hpet increasing min_delta_ns to 15000 nsec [ 1188.704021] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 [ 1188.704028] IP: [] mmu_page_remove_parent_pte+0xc/0x100 [ 1188.704036] PGD 1a0c63067 PUD 1a0ddd067 PMD 0 [ 1188.704040] Oops: 0000 [#1] SMP [ 1188.704043] last sysfs file: /sys/devices/pci0000:00/0000:00:10.0/0000:01:09.0/resource [ 1188.704046] CPU 1 [ 1188.704047] Modules linked in: [ 1188.704051] Pid: 2985, comm: qemu-system-x86 Not tainted 2.6.30-rc6 #5 System Product Name [ 1188.704054] RIP: 0010:[] [] mmu_page_remove_parent_pte+0xc/0x100 [ 1188.704059] RSP: 0018:ffff8801a0dc1918 EFLAGS: 00010296 [ 1188.704061] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 1188.704063] RDX: ffffe20000000000 RSI: ffff880195717140 RDI: 0000000000000000 [ 1188.704066] RBP: ffff8801a0dc1928 R08: 0000000000000001 R09: 0000000000000001 [ 1188.704068] R10: 0000000000000002 R11: 0000000000000000 R12: ffff880195717140 [ 1188.704070] R13: ffff88019542ab00 R14: 0000000000000028 R15: ffff8801a0cc0000 [ 1188.704073] FS: 0000000040cd7950(0063) GS:ffff88002804d000(0000) knlGS:0000000000000000 [ 1188.704076] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1188.704078] CR2: 0000000000000058 CR3: 00000001a3d48000 CR4: 00000000000006e0 [ 1188.704080] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1188.704083] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1188.704086] Process qemu-system-x86 (pid: 2985, threadinfo ffff8801a0dc0000, task ffff8801a0d8d460) [ 1188.704088] Stack: [ 1188.704089] ffff8801acd60000 0000000000000008 ffff8801a0dc1ab8 ffffffff80217323 [ 1188.704093] ffff8801a0cc0000 0000000000000001 ffff8801955baa50 ffffffff00000000 [ 1188.704097] 0000000000000001 00000000fee0017b ffff8801a0dc19f8 ffffffff8021a04f [ 1188.704101] Call Trace: [ 1188.704103] [] kvm_mmu_zap_page+0x153/0x3a0 [ 1188.704107] [] ? paging64_walk_addr+0x28f/0x320 [ 1188.704111] [] ? gfn_to_hva+0x27/0x60 [ 1188.704115] [] ? kvm_read_guest_page+0x65/0x70 [ 1188.704119] [] ? get_user_pages_fast+0x1db/0x2e0 [ 1188.704124] [] __kvm_mmu_free_some_pages+0x24/0x40 [ 1188.704127] [] paging64_page_fault+0x40d/0x420 [ 1188.704131] [] ? x86_emulate_insn+0x292/0x4d30 [ 1188.704135] [] ? x86_decode_insn+0xc45/0xf10 [ 1188.704139] [] ? emulate_instruction+0x1cd/0x2f0 [ 1188.704143] [] kvm_mmu_page_fault+0x1c/0x90 [ 1188.704147] [] pf_interception+0x7f/0x190 [ 1188.704151] [] ? apic_update_ppr+0x2d/0x70 [ 1188.704155] [] handle_exit+0x14a/0x2c0 [ 1188.704158] [] ? apic_update_ppr+0x2d/0x70 [ 1188.704161] [] kvm_arch_vcpu_ioctl_run+0x62f/0xaa0 [ 1188.704165] [] ? kvm_vm_ioctl+0x165/0x910 [ 1188.704169] [] ? do_futex+0x689/0x9c0 [ 1188.704174] [] kvm_vcpu_ioctl+0x5d3/0x790 [ 1188.704177] [] ? __dequeue_entity+0x2b/0x50 [ 1188.704181] [] ? set_next_entity+0x26/0x50 [ 1188.704184] [] vfs_ioctl+0x31/0x90 [ 1188.704189] [] do_vfs_ioctl+0x2f1/0x4e0 [ 1188.704192] [] sys_ioctl+0x82/0xa0 [ 1188.704196] [] system_call_fastpath+0x16/0x1b [ 1188.704200] Code: e6 48 89 df e8 66 fe ff ff 48 8b 1c 24 4c 8b 64 24 08 c9 c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb 48 83 ec 08 <44> 8b 4f 58 45 85 c9 0f 84 d7 00 00 00 48 8b 47 68 48 85 c0 0f [ 1188.704226] RIP [] mmu_page_remove_parent_pte+0xc/0x100 [ 1188.704230] RSP [ 1188.704232] CR2: 0000000000000058 [ 1188.704234] ---[ end trace 35a9bc3a55fc3772 ]--- -- Hans