From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Bruin Subject: Re: just a dump Date: Thu, 21 May 2009 12:22:52 +0200 Message-ID: <4A152B7C.4080401@xs4all.nl> References: <4A09E620.3040300@xs4all.nl> <4A09F62A.8010203@xs4all.nl> <20090515144923.GA6304@amt.cnet> <4A0E7B81.6070203@xs4all.nl> <20090516131046.GB3153@amt.cnet> 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-vbr4.xs4all.nl ([194.109.24.24]:3690 "EHLO smtp-vbr4.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752124AbZEUKWI (ORCPT ); Thu, 21 May 2009 06:22:08 -0400 In-Reply-To: <20090516131046.GB3153@amt.cnet> Sender: kvm-owner@vger.kernel.org List-ID: 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: [ 167.829503] rmap_remove: ffff8801079a7a00 800000017c5c6047 1->BUG [ 167.829510] ------------[ cut here ]------------ [ 167.829513] kernel BUG at arch/x86/kvm/mmu.c:582! [ 167.829515] invalid opcode: 0000 [#1] SMP [ 167.829518] last sysfs file: /sys/devices/pci0000:00/0000:00:10.0/0000:01:09.0/resource [ 167.829520] CPU 1 [ 167.829522] Modules linked in: [ 167.829526] Pid: 2908, comm: qemu-system-x86 Not tainted 2.6.30-rc6 #5 System Product Name [ 167.829528] RIP: 0010:[] [] rmap_remove+0xdf/0x200 [ 167.829536] RSP: 0018:ffff8801a13f19f8 EFLAGS: 00010292 [ 167.829538] RAX: 0000000000000049 RBX: 800000017c5c6047 RCX: ffffffff809a3b40 [ 167.829541] RDX: ffff88002804d000 RSI: 0000000000000046 RDI: ffffffff809a3a30 [ 167.829543] RBP: ffff8801a13f1a28 R08: 000000000000ae32 R09: 00000000ffffffff [ 167.829545] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000017c5c6 [ 167.829548] R13: ffff8801079a7a00 R14: ffff8801094f8580 R15: ffff8801a121c000 [ 167.829551] FS: 000000004239a950(0063) GS:ffff88002804d000(0000) knlGS:000007fffffd6000 [ 167.829553] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 167.829556] CR2: 00007fd70812e540 CR3: 00000001a3fb8000 CR4: 00000000000006e0 [ 167.829558] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 167.829560] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 167.829563] Process qemu-system-x86 (pid: 2908, threadinfo ffff8801a13f0000, task ffff8801ae9d1c20) [ 167.829565] Stack: [ 167.829566] ffff8801a13f1a28 0000000000035b00 0000000000035b2e 88e0000035b2e867 [ 167.829570] 0000000000000a00 ffff8801094f8580 ffff8801a13f1ac8 ffffffff8021ad8d [ 167.829574] 0000000000000000 ffff880100000000 000000000003633a 000000000017d5ea [ 167.829578] Call Trace: [ 167.829580] [] paging64_sync_page+0x9d/0x1a0 [ 167.829585] [] ? rmap_write_protect+0xd5/0x150 [ 167.829589] [] kvm_sync_page+0x6b/0x90 [ 167.829592] [] mmu_sync_children+0xcd/0x120 [ 167.829596] [] ? x86_decode_insn+0x412/0xf10 [ 167.829600] [] mmu_sync_roots+0xc2/0xd0 [ 167.829603] [] kvm_mmu_load+0x138/0x200 [ 167.829606] [] ? handle_exit+0x14a/0x2c0 [ 167.829610] [] kvm_arch_vcpu_ioctl_run+0x863/0xaa0 [ 167.829615] [] ? kvm_vm_ioctl+0x165/0x910 [ 167.829618] [] ? do_futex+0x689/0x9c0 [ 167.829623] [] kvm_vcpu_ioctl+0x5d3/0x790 [ 167.829626] [] ? common_interrupt+0xe/0x13 [ 167.829630] [] ? __dequeue_entity+0x2b/0x50 [ 167.829633] [] vfs_ioctl+0x31/0x90 [ 167.829638] [] do_vfs_ioctl+0x2f1/0x4e0 [ 167.829641] [] sys_ioctl+0x82/0xa0 [ 167.829645] [] system_call_fastpath+0x16/0x1b [ 167.829649] Code: 48 85 c0 0f 84 81 00 00 00 a8 01 75 3d 4c 39 e8 0f 84 f4 00 00 00 49 8b 55 00 4c 89 ee 48 c7 c7 f0 2e 7f 80 31 c0 e8 a1 29 04 00 <0f> 0b eb fe 4c 89 e7 e8 f5 2d ff ff eb 9b 48 89 c7 e8 cb 52 ff [ 167.829675] RIP [] rmap_remove+0xdf/0x200 [ 167.829678] RSP [ 167.829681] ---[ end trace bee56bd865cfd2e1 ]---