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xen-devel
Re: [Xen-devel] Some VMs are crashed in xen 4.0.1
On 25/02/2011 02:37, "wenche_chang@xxxxxxxxxxxx" <wenche_chang@xxxxxxxxxxxx>
wrote:
> We Run 150 Fedora13 VMs on many hypervisor , images and xml are stored in DFS.
>
> Some of the VMs will be crashed in 48 hours. Some of the VMs will remain.
> (The VMs have some IO/CPU loading by start up a loading services.)
>
> All the crashed VM has the same WARNING message in xend.log, for example:
> [2011-02-18 10:42:36 3235] WARNING (image:552) domain
> 5ab73a3f-87da-48fd-9236-a2f752c16c76: device model failure: pid 11037: died
> due to signal 11; see
> /var/log/xen/qemu-dm-5ab73a3f-87da-48fd-9236-a2f752c16c76.log
Your qemu-dm processes are dying on SIGSEGV. You need to get a core dump
from one of these crashed processes and use gdb to get a backtrace.
-- Keir
> The qemu-dm log is like this
>
> /var/log/xen/qemu-dm-1cf74c71-62c2-4411-abb2-1db0a2e45142.log
> domid: 35
> config qemu network with xen bridge for tap35.0 teprod
> Using file
> /mnt/vm_depot/volume_pool/fd3e/47/fd3e4783-9c66-4313-b51a-8b737a792392 in
> read-write mode
> Watching /local/domain/0/device-model/35/logdirty/cmd
> Watching /local/domain/0/device-model/35/command
> char device redirected to /dev/pts/2
> qemu_map_cache_init nr_buckets = 10000 size 4194304
> shared page at pfn feffd
> buffered io page at pfn feffb
> Guest uuid = 1cf74c71-62c2-4411-abb2-1db0a2e45142
> Time offset set 0
> populating video RAM at ff000000
> mapping video RAM from ff000000
> Register xen platform.
> Done register platform.
> platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw
> state.
> xs_read(/local/domain/0/device-model/35/xen_extended_power_mgmt): read error
> xs_read(): vncpasswd get error.
> /vm/1cf74c71-62c2-4411-abb2-1db0a2e45142/vncpasswd.
> Log-dirty: no command yet.
> I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
> xs_read(/local/domain/35/log-throttling): read error
> qemu: ignoring not-understood drive `/local/domain/35/log-throttling'
> medium change watch on `/local/domain/35/log-throttling' - unknown device,
> ignored
> cirrus vga map change while on lfb mode
> mapping vram to f0000000 - f0400000
> platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw
> state.
> platform_fixed_ioport: changed ro/rw state of ROM memory area. now is ro
> state.
>
>
>
> I found a mail last year in
> http://xen.1045712.n5.nabble.com/PATCH-0-2-Fix-could-not-boot-vm-image-which-c
> onverted-from-phy-partition-td2548812.html
> , but it¹s XEN 3.4.0, and we use XEN 4.0.1 RELEASE.
>
> It¹s a bug of XEN or something else?
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