From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Tosatti Subject: Re: just a dump Date: Fri, 15 May 2009 11:49:23 -0300 Message-ID: <20090515144923.GA6304@amt.cnet> References: <4A09E620.3040300@xs4all.nl> <4A09F62A.8010203@xs4all.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org To: Hans de Bruin Return-path: Received: from mx2.redhat.com ([66.187.237.31]:47404 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752995AbZEOOtt (ORCPT ); Fri, 15 May 2009 10:49:49 -0400 Content-Disposition: inline In-Reply-To: <4A09F62A.8010203@xs4all.nl> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, May 13, 2009 at 12:20:26AM +0200, Hans de Bruin wrote: > Hans de Bruin wrote: >> Staring to vms simultaneously end in crash >> >> linux 30-rc5 >> kvm-qemu kvm-85-378-g143eb2b >> proc AMD dualcore >> >> vm's like: >> >> #!/bin/sh >> n=10 >> cdrom=/iso/server2008x64.iso >> drive=file=/kvm/disks/vm$n >> mem=1024 >> cpu=qemu64 >> vga=std >> mac=52:54:00:12:34:$n >> bridge=br1 >> >> qemu-system-x86_64 -cdrom $cdrom -drive $drive -m $mem -cpu $cpu -vga >> $vga -net nic,macaddr=$mac -net tap,script=/etc/qemu/$bridge >> >> > another dmesg: Hans, The oopses below point to the possibility of a hardware problem, similar to: https://bugzilla.redhat.com/show_bug.cgi?id=480779 Can you please rule it out with memtest86? > > device tap0 entered promiscuous mode > br1: topology change detected, propagating > br1: port 1(tap0) entering forwarding state > device tap1 entered promiscuous mode > br1: topology change detected, propagating > br1: port 2(tap1) entering forwarding state > tap0: no IPv6 routers present > tap1: no IPv6 routers present > kvm: 2915: cpu0 unimplemented perfctr wrmsr: 0xc0010000 data 0x0 > kvm: 2915: cpu0 unimplemented perfctr wrmsr: 0xc0010001 data 0x0 > kvm: 2915: cpu0 unimplemented perfctr wrmsr: 0xc0010002 data 0x0 > kvm: 2915: cpu0 unimplemented perfctr wrmsr: 0xc0010003 data 0x0 > kvm: 2914: cpu0 unimplemented perfctr wrmsr: 0xc0010000 data 0x0 > kvm: 2914: cpu0 unimplemented perfctr wrmsr: 0xc0010001 data 0x0 > kvm: 2914: cpu0 unimplemented perfctr wrmsr: 0xc0010002 data 0x0 > kvm: 2914: cpu0 unimplemented perfctr wrmsr: 0xc0010003 data 0x0 > rmap_remove: ffff880100de5500 8 0->BUG > ------------[ cut here ]------------ > kernel BUG at arch/x86/kvm/mmu.c:576! > invalid opcode: 0000 [#1] SMP > last sysfs file: /sys/devices/pci0000:00/0000:00:10.0/0000:01:09.0/resource > CPU 1 > Modules linked in: > Pid: 2925, comm: qemu-system-x86 Not tainted 2.6.30-rc5 #3 System > Product Name > RIP: 0010:[] [] rmap_remove+0x151/0x200 > RSP: 0018:ffff8801a0d379f8 EFLAGS: 00010292 > RAX: 000000000000002a RBX: 0000000000000008 RCX: ffffffff809a3b40 > RDX: ffff88002804d000 RSI: 0000000000000046 RDI: ffffffff809a3a34 > RBP: ffff8801a0d37a28 R08: 0000000000008777 R09: 00000000ffffffff > R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 > R13: ffff880100de5500 R14: ffff880101e23580 R15: ffff8801a0e1c000 > FS: 000000004270d950(0063) GS:ffff88002804d000(0000) knlGS:000007fffffaa000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00000000014a8c18 CR3: 00000001a0c62000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process qemu-system-x86 (pid: 2925, threadinfo ffff8801a0d36000, task > ffff8801af3605a0) > Stack: > ffff8801a0d37a28 0000000000000000 0000000000000000 0000000000000000 > 0000000000000500 ffff880101e23580 ffff8801a0d37ac8 ffffffff8021ad8d > 0000000000000000 ffff880100000000 000000000003020d 000000000016e772 > Call Trace: > [] paging64_sync_page+0x9d/0x1a0 > [] ? rmap_write_protect+0xd5/0x150 > [] kvm_sync_page+0x6b/0x90 > [] mmu_sync_children+0xcd/0x120 > [] ? x86_emulate_insn+0x292/0x4d30 > [] ? x86_decode_insn+0x412/0xf10 > [] mmu_sync_roots+0xc2/0xd0 > [] kvm_mmu_load+0x138/0x200 > [] ? handle_exit+0x14a/0x2c0 > [] kvm_arch_vcpu_ioctl_run+0x863/0xaa0 > [] ? kvm_vm_ioctl+0x165/0x910 > [] ? do_futex+0x679/0x9a0 > [] kvm_vcpu_ioctl+0x5d3/0x790 > [] ? common_interrupt+0xe/0x13 > [] ? __dequeue_entity+0x2b/0x50 > [] vfs_ioctl+0x31/0x90 > [] do_vfs_ioctl+0x2f1/0x4e0 > [] sys_ioctl+0x82/0xa0 > [] system_call_fastpath+0x16/0x1b > Code: 04 75 e7 48 8b 47 20 49 89 fb 48 85 c0 0f 84 b7 00 00 00 48 89 c7 > eb d0 49 8b 55 00 4c 89 ee 48 c7 c7 b8 2e 7f 80 e8 1f 29 > 04 00 <0f> 0b eb fe 48 8b 4f 18 48 85 c9 0f 94 c2 83 fe 02 0f 9e c0 84 > RIP [] rmap_remove+0x151/0x200 > RSP > ---[ end trace c11385df745a1fea ]--- > BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 > IP: [] mmu_page_remove_parent_pte+0xc/0x100 > PGD 1a0ca8067 PUD 1a0ca9067 PMD 0 > Oops: 0000 [#2] SMP > last sysfs file: /sys/devices/pci0000:00/0000:00:10.0/0000:01:09.0/resource > CPU 0 > Modules linked in: > Pid: 2926, comm: qemu-system-x86 Tainted: G D 2.6.30-rc5 #3 > System Product Name > RIP: 0010:[] [] > mmu_page_remove_parent_pte+0xc/0x100 > RSP: 0018:ffff8801a0da57a8 EFLAGS: 00010292 > RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000002b > RDX: ffffe20000000000 RSI: ffff8800ccac0220 RDI: 0000000000000000 > RBP: ffff8801a0da57b8 R08: 000000000000006a R09: ffff8800ccd85e70 > R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800ccac0220 > R13: ffff8800ccd85dc0 R14: 0000000000000044 R15: ffff8801a0db0000 > FS: 0000000040fbc950(0063) GS:ffff880028034000(0000) knlGS:000007fffffd5000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000000000058 CR3: 00000001a0c63000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process qemu-system-x86 (pid: 2926, threadinfo ffff8801a0da4000, task > ffff8801ae971c20) > Stack: > ffff8800ccd85590 000000000000007a ffff8801a0da5948 ffffffff80217323 > ffff8801a0da5808 0000000000000056 ffff8800ccd85dc0 ffffe20000000000 > ffff8801030f8160 0000000000000003 ffff880103f87000 ffffffff000001b8 > Call Trace: > [] kvm_mmu_zap_page+0x153/0x3a0 > [] ? mark_page_dirty+0x27/0x60 > [] ? get_user_pages_fast+0x1db/0x2e0 > [] ? gfn_to_memslot+0x1c/0x30 > [] ? gfn_to_memslot+0x1c/0x30 > [] ? gfn_to_hva+0x27/0x60 > [] ? kvm_read_guest_page+0x65/0x70 > [] kvm_mmu_pte_write+0x72c/0x910 > [] ? paging64_walk_addr+0x28f/0x320 > [] ? kvm_write_guest_page+0x7c/0x80 > [] emulator_write_phys+0x4d/0x70 > [] emulator_write_emulated_onepage+0x95/0x120 > [] emulator_write_emulated+0x70/0x90 > [] x86_emulate_insn+0x3de/0x4d30 > [] ? decode_register_operand+0x8f/0x100 > [] ? x86_decode_insn+0x6dc/0xf10 > [] ? kvm_find_cpuid_entry+0xf0/0x110 > [] emulate_instruction+0x15f/0x2f0 > [] kvm_mmu_page_fault+0x5a/0x90 > [] pf_interception+0x7f/0x190 > [] ? apic_update_ppr+0x2d/0x70 > [] handle_exit+0x14a/0x2c0 > [] kvm_arch_vcpu_ioctl_run+0x62f/0xaa0 > [] ? kvm_vm_ioctl+0x165/0x910 > [] ? autoremove_wake_function+0x0/0x40 > [] kvm_vcpu_ioctl+0x5d3/0x790 > [] ? security_file_permission+0x11/0x20 > [] ? do_readv_writev+0x14f/0x1d0 > [] vfs_ioctl+0x31/0x90 > [] do_vfs_ioctl+0x2f1/0x4e0 > [] sys_ioctl+0x82/0xa0 > [] ? sys_writev+0x81/0x90 > [] system_call_fastpath+0x16/0x1b > 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 > RIP [] mmu_page_remove_parent_pte+0xc/0x100 > RSP > CR2: 0000000000000058 > ---[ end trace c11385df745a1feb ]--- > > Starting with a clear disk cach makes the change of this happening > bigger. The first time the screen mode of one of the vm's just changed > to the left to right walking progress bar. This time I brought one of > the windows to the front late in de bootprocess (the windows applying > computer settings screen). > > -- > Hans > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html