port-xen: Re: Strange events leading to "Hotplug scripts not working" and xen death

Subject: Re: Strange events leading to "Hotplug scripts not working" and xen death
To: Manuel Bouyer <bouyer@antioche.eu.org>
From: Avleen Vig <lists-netbsd@silverwraith.com>
List: port-xen
Date: 05/15/2007 11:17:24

On Tue, May 15, 2007 at 07:34:19PM +0200, Manuel Bouyer wrote:
> It's xenbackend
Cool good to know :)
> > System: NetBSD 4.0 BETA2 as of ~1 week ago, Xen 3 compiled from pkgsrc.
> 
> Is it xen-3.0.3 or xen-3.0.4 ?
xen-3.0.4
> > *Finally* :-) commands like 'xenstore-ls' just hang too.
> > The xenstore commands seem to be hanging trying to read from the store.
> 
> So it's most probably an issue with the store. Could you try ktrace to
> see on what xenstore-ls hangs ? Is xenstored still running ?
> You could try to ktrace it too.
xenstored is still running.
I rebooted, ktraced xenstored, and then tried to create the centos
domain, which reliably breaks xen every time:
 http://silverwraith.com/xen/xenstore_during_xm_create.ktrace.out.gz
 ~1mb (~12mb uncompressed)
xenstore-ls current works though with no errors...
I tried to create the FreeBSD7 domain, and it failed with:
 [XEN] Initialising virtual ethernet driver.
 panic: not implemented
 Uptime: 1s
That looks like a problem with the FreeBSD kernel, but as a result,
xenstore-ls now gives this error at the end:
 vbd = ""
 1 = ""
 2 = ""
 769 = ""
 domain = "freebsd_xen_INSTALL"
 frontend = "/local/domain/2/device/vbd/769"
 uuid = "807bc57d-ff85-27b7-a7fc-1dd311d02d73"
 dev = "hda1"
 state = "5"
 params = "/xen/nfs_root/freebsd1/mdroot-7.0"
 mode = "w"
 online = ""
xenstore-ls: xs_directory (/local/domain/0/backend/vbd/2/769/online): Bad file descriptor
Running xenstore for a second time now makes it hang.
Ktrace for it is at: http://silverwraith.com/xen/xenstore_ls.ktrace.out.gz
Thank you!