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Re: [Xen-users] block-attach crashes domU

To: Pasi Kärkkäinen <pasik@xxxxxx>

From: Tracy Reed <treed@xxxxxxxxxxxxxxx>

Date: Fri, 22 Jan 2010 13:05:32 -0800

Delivery-date: Fri, 22 Jan 2010 13:06:21 -0800

List-id: Xen user discussion <xen-users.lists.xensource.com>

On Fri, Jan 22, 2010 at 10:00:18AM +0200, Pasi Kärkkäinen spake thusly: > Does it work if you attach some local LVM volume or file image (non-AOE) as > xvdd? > > Do you get errors in dom0 "dmesg"? How about dom0 /var/log/messages? > Do you get errors in dom0 "xm log" ? How about "xm dmesg"? Nothing in dom0 dmesg or /var/log/messages xm dmesg contains many things like: (XEN) mm.c:625:d172 Non-privileged (172) attempt to map I/O space 000000f0 (XEN) mm.c:625:d53 Non-privileged (53) attempt to map I/O space 000000f0 (XEN) mm.c:625:d72 Non-privileged (72) attempt to map I/O space 000000f0 (XEN) mm.c:625:d90 Non-privileged (90) attempt to map I/O space 000000f0 (XEN) mm.c:625:d172 Non-privileged (172) attempt to map I/O space 000000f0 Not sure if this indicates a problem or is related to my current problem or not. Hard to tell since it isn't time-stamped. In xm log I see things like: [2010-01-21 21:51:30 xend 8993] INFO (image:137) buildDomain os=linux dom=178 vc pus=4 [2010-01-21 21:51:30 xend 8993] DEBUG (image:206) domid = 178 [2010-01-21 21:51:30 xend 8993] DEBUG (image:207) memsize = 2048 [2010-01-21 21:51:30 xend 8993] DEBUG (image:208) image = /var/lib/xen/ boot_kernel.CkgrHX [2010-01-21 21:51:30 xend 8993] DEBUG (image:209) store_evtchn = 1 [2010-01-21 21:51:30 xend 8993] DEBUG (image:210) console_evtchn = 2 [2010-01-21 21:51:30 xend 8993] DEBUG (image:211) cmdline = ro root=/dev /md0 console=xvc0 [2010-01-21 21:51:30 xend 8993] DEBUG (image:212) ramdisk = /var/lib/xen/ boot_ramdisk.UfCwIK [2010-01-21 21:51:30 xend 8993] DEBUG (image:213) vcpus = 4 [2010-01-21 21:51:30 xend 8993] DEBUG (image:214) features = [2010-01-21 21:51:30 xend 8993] DEBUG (blkif:27) exception looking up device num ber for xvda: [Errno 2] No such file or directory: \047/dev/xvda\047 [2010-01-21 21:51:30 xend 8993] DEBUG (DevController:110) DevController: writing {\047virtual-device\047: \04751712\047, \047device-type\047: \047disk\047, \047 protocol\047: \047x86_64-abi\047, \047backend-id\047: \0470\047, \047state\047: \0471\047, \047backend\047: \047/local/domain/0/backend/vbd/178/51712\047} to /l ocal/domain/178/device/vbd/51712. [2010-01-21 21:51:30 xend 8993] DEBUG (DevController:112) DevController: writing {\047domain\047: \047db2\047, \047frontend\047: \047/local/domain/178/device/vb d/51712\047, \047format\047: \047raw\047, \047dev\047: \047xvda\047, \047state\0 47: \0471\047, \047params\047: \047/dev/etherd/e1.12\047, \047mode\047: \047w\04 7, \047online\047: \0471\047, \047frontend-id\047: \047178\047, \047type\047: \0 47phy\047} to /local/domain/0/backend/vbd/178/51712. [2010-01-21 21:51:30 xend 8993] DEBUG (blkif:27) exception looking up device num ber for xvdb: [Errno 2] No such file or directory: \047/dev/xvdb\047 [2010-01-21 21:51:30 xend 8993] DEBUG (DevController:110) DevController: writing {\047virtual-device\047: \04751728\047, \047device-type\047: \047disk\047, \047 protocol\047: \047x86_64-abi\047, \047backend-id\047: \0470\047, \047state\047: \0471\047, \047backend\047: \047/local/domain/0/backend/vbd/178/51728\047} to /l ocal/domain/178/device/vbd/51728. [2010-01-21 21:51:30 xend 8993] DEBUG (DevController:112) DevController: writing {\047domain\047: \047db2\047, \047frontend\047: \047/local/domain/178/device/vb d/51728\047, \047format\047: \047raw\047, \047dev\047: \047xvdb\047, \047state\0 47: \0471\047, \047params\047: \047/dev/etherd/e2.12\047, \047mode\047: \047w\04 7, \047online\047: \0471\047, \047frontend-id\047: \047178\047, \047type\047: \0 47phy\047} to /local/domain/0/backend/vbd/178/51728. [2010-01-21 21:51:30 xend 8993] DEBUG (blkif:27) exception looking up device num ber for xvdc: [Errno 2] No such file or directory: \047/dev/xvdc\047 and also: [2010-01-21 21:51:06 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vif/177/0/hotplug-status. [2010-01-21 21:51:06 xend 8993] DEBUG (DevController:510) hotplugStatusCallback 1. [2010-01-21 21:51:06 xend 8993] DEBUG (DevController:154) Waiting for devices us b. [2010-01-21 21:51:06 xend 8993] DEBUG (DevController:154) Waiting for devices vb d. [2010-01-21 21:51:06 xend 8993] DEBUG (DevController:160) Waiting for 51712. [2010-01-21 21:51:06 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/51712/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/51712/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:510) hotplugStatusCallback 1. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:160) Waiting for 51728. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/51728/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/51728/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:510) hotplugStatusCallback 1. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:160) Waiting for 51744. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/51744/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/51744/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:510) hotplugStatusCallback 1. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:160) Waiting for 0. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:496) hotplugStatusCallback /local/domain/0/backend/vbd/177/0/hotplug-status. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:510) hotplugStatusCallback 1. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices ir q. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices vk bd. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices vf b. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices pc i. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices io ports. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices ta p. [2010-01-21 21:51:07 xend 8993] DEBUG (DevController:154) Waiting for devices vt pm. [2010-01-21 21:51:12 xend.XendDomainInfo 8993] WARNING (XendDomainInfo:965) Doma in has crashed: name=db2 id=177. [2010-01-21 21:51:12 xend.XendDomainInfo 8993] DEBUG (XendDomainInfo:832) Storin g domain details: {\047console/ring-ref\047: \0475339667\047, \047console/port\0 47: \0472\047, \047cpu/3/availability\047: \047online\047, \047name\047: \047db2 \047, \047console/limit\047: \0471048576\047, \047cpu/2/availability\047: \047on line\047, \047vm\047: \047/vm/f253cab5-c3de-c1f7-e735-5d4f0bfcd3ff\047, \047domi d\047: \047177\047, \047cpu/0/availability\047: \047online\047, \047memory/targe t\047: \0472097152\047, \047store/ring-ref\047: \0475973074\047, \047cpu/1/avail ability\047: \047online\047, \047store/port\047: \0471\047} [2010-01-21 21:51:12 xend.XendDomainInfo 8993] ERROR (XendDomainInfo:1896) VM db 2 restarting too fast (8.055686 seconds since the last restart). Refusing to re start to avoid loops. I'm pretty sure these are related to the crashes I saw. -- Tracy Reed http://tracyreed.org

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