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: [<ffffffff80216b4c>] 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:[<ffffffff80216b4c>] [<ffffffff80216b4c>]
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] [<ffffffff80217323>] kvm_mmu_zap_page+0x153/0x3a0
[ 1188.704107] [<ffffffff8021a04f>] ? paging64_walk_addr+0x28f/0x320
[ 1188.704111] [<ffffffff8020a267>] ? gfn_to_hva+0x27/0x60
[ 1188.704115] [<ffffffff8020a4a5>] ? kvm_read_guest_page+0x65/0x70
[ 1188.704119] [<ffffffff80248f0b>] ? get_user_pages_fast+0x1db/0x2e0
[ 1188.704124] [<ffffffff80217594>] __kvm_mmu_free_some_pages+0x24/0x40
[ 1188.704127] [<ffffffff8021b55d>] paging64_page_fault+0x40d/0x420
[ 1188.704131] [<ffffffff8021cfd2>] ? x86_emulate_insn+0x292/0x4d30
[ 1188.704135] [<ffffffff8021ca75>] ? x86_decode_insn+0xc45/0xf10
[ 1188.704139] [<ffffffff8020f98d>] ? emulate_instruction+0x1cd/0x2f0
[ 1188.704143] [<ffffffff8021919c>] kvm_mmu_page_fault+0x1c/0x90
[ 1188.704147] [<ffffffff80226e6f>] pf_interception+0x7f/0x190
[ 1188.704151] [<ffffffff80222a3d>] ? apic_update_ppr+0x2d/0x70
[ 1188.704155] [<ffffffff8022821a>] handle_exit+0x14a/0x2c0
[ 1188.704158] [<ffffffff80222a3d>] ? apic_update_ppr+0x2d/0x70
[ 1188.704161] [<ffffffff8021363f>] kvm_arch_vcpu_ioctl_run+0x62f/0xaa0
[ 1188.704165] [<ffffffff8020b5d5>] ? kvm_vm_ioctl+0x165/0x910
[ 1188.704169] [<ffffffff8027cde9>] ? do_futex+0x689/0x9c0
[ 1188.704174] [<ffffffff8020cad3>] kvm_vcpu_ioctl+0x5d3/0x790
[ 1188.704177] [<ffffffff8024eaeb>] ? __dequeue_entity+0x2b/0x50
[ 1188.704181] [<ffffffff8024eb36>] ? set_next_entity+0x26/0x50
[ 1188.704184] [<ffffffff802d8fa1>] vfs_ioctl+0x31/0x90
[ 1188.704189] [<ffffffff802d92f1>] do_vfs_ioctl+0x2f1/0x4e0
[ 1188.704192] [<ffffffff802d9562>] sys_ioctl+0x82/0xa0
[ 1188.704196] [<ffffffff8022af6b>] 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 [<ffffffff80216b4c>]
mmu_page_remove_parent_pte+0xc/0x100
[ 1188.704230] RSP <ffff8801a0dc1918>
[ 1188.704232] CR2: 0000000000000058
[ 1188.704234] ---[ end trace 35a9bc3a55fc3772 ]---
--
Hans
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