All,
The zone halt, reboot, init 0 etc did not work from the global zone, we
did capture a live core from the system and saw that the biowait was
happening for 1 day. My questions is the following. We saw that in an
event when a process within a zone hangs on a biowait, or anythings as
such, ie writing to disk, etc, the zone or any process in the zone
hangs, we were not able to bring the zone down, halt it etc and thus we
had to reboot the global zone to fix the issue. My question is what can
be done to prevent this, is it to unmount the disk assigned to the local
zone? etc, All suggestions are welcomed.
Thanks,
Morillo, Carlos [NCSUS Non-J&J] wrote:
Since you only have one single kernel image the thread the zone created
is stuck doing a read()/write() in biowait() waiting for the I/O to
complete.
Sometime in the future the underlying device handling that I/O should
respond
and trigger an interrupt calling biodone().
I would look in /var/adm/messages and have a crashdump of the kernel if it
was collected.
Keep in mind there is one single kernel image.
HTH,
Carlos A. Morillo 908 655 3378
NA UNIX Deployment [EMAIL PROTECTED]
J&J NCS Raritan, NJ
-----Original Message-----
*From:* [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of *Russ
Petruzzelli
*Sent:* Wednesday, April 11, 2007 12:30 PM
*To:* [EMAIL PROTECTED]
*Cc:* zones-discuss@opensolaris.org
*Subject:* Re: [zones-discuss] Preventing a Local zone hang from
having to reboot the global zone
This will re-boot the zone from the global zone,
zoneadm -z hostnamezoneX boot
Russ
Victor Restrepo wrote On 04/11/07 07:40 AM,:
Hello All,
I had a case where a hung process in a local zone (ie blocked on
biowait), caused the local zone to become unresponsive. Couldn't shut
the zone down, kill the process, etc. The only way to have zone become
responsive was to reboot the global zone. Is there any thing that can
be done to prevent this. ie (not having to reboot the global zone and
only reboot the local zone)
Regards,
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Victor Restrepo
Technical Specialist
Sun Microsystems
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