Hi, I find this post:
( at
http://lists.xensource.com/archives/html/xen-users/2006-05/msg00278.html )
[Xen-users] HD timeouts with busy xen domains
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*Subject*: [Xen-users] HD timeouts with busy xen domains
*From*: Itai Tavor <itai@xxxxxxxxxxxx <mailto:itai@DOMAIN.HIDDEN>>
*Date*: Thu, 11 May 2006 12:52:14 +1000
*Delivery-date*: Wed, 10 May 2006 19:53:00 -0700
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Hi,
Now that I''ve got that 3-day-long,
let''s-waste-some-time-with-a-
broken-dom0 episode, I can get back to the real problems that are
preventing me from getting any use out of my Xen-based server. What is
happening, basically, is that as soon as some guest domains get busy,
the hard disks go south for the winter. I know this is not really a Xen
issue (at least not directly) but as the problem only happens in a Xen
setup, I thought I''d try to ask about it here. The server has four SATA
hard disks. It has worked with the same hardware setup for many months,
with processor- and disk-intensive applications, with no problems. Now,
I can start dom0 and guest domains with no problem, and they run fine as
long as they don''t try to do a lot. But as soon as they get busy - say,
compiling something - the console shows an endless stream of:
ata1: command 0x35 timeout, stat 0x50 host_stat 0x64
ata2: command 0x25 timeout, stat 0x50 host_stat 0x64
ata4: command 0x35 timeout, stat 0x50 host_stat 0x4
And the system stops responding, until I reset the server or throw it
out the window (well, not yet, but it''s coming). I''ve seen
posts saying
that these errors are related to APIC, so I tried adding "noapic
acpi=off" to the dom0 kernel command line. No change. If anyone''s
wondering why ata3 isn''t in the list... it''s a different drive
- a 250GB
WD while 1, 2 and 4 are 400GB Seagates. Interesting?
Any ideas/suggestions?
TIA, Itai
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Sorry, but I don''t understand how to reply.... I just want to tell you
that I had the same problem and I resolved it with starting the system
with a live cd, doing the "chroot" and than deleting hald from rc
default (#rc-update del hald default).
I hope this can help you.
bye bye Raffaele
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