Message: 4
Date: Thu, 16 Mar 2006 11:35:34 +0000
From: Dr
A V Le Blanc A.V.LeBlanc@xxxxxxxxx
Subject: [Xen-users] I/O hangs with Xen 3.0.1 on Dell
poweredge
To: xen-users@xxxxxxxxxxxxxxxxxxx
Message-ID: 20060316113534.GA30223@xxxxxxxxxxxxx
Content-Type: text/plain; charset=us-ascii
I don't know if anyone is having a similar problem.
I've
installed Xen 3.0.1 on a Dell PowerEdge 2850 using source
downloaded by
mercurial on March 14. The machine has an e1000
ethernet card and an LSI
megaraid controller which looks like
this in the dmesg at boot
time:
megaraid cmm: 2.20.2.5 (Release Date: Fri Jan 21 00:01:03 EST
2005)
megaraid: 2.20.4.5 (Release Date: Thu Feb 03 12:27:22 EST
2005)
megaraid: probe new device 0x1028:0x0013:0x1028:0x016d: bus 2:slot
14:func 0
ACPI: PCI Interrupt 0000:02:0e.0[A] -> GSI 46 (level, low) ->
IRQ 46
megaraid: fw version:[521S] bios version:[H430]
scsi0 : LSI Logic
MegaRAID driver
I compiled xen after using 'make
menuconfig' to add the MEGARAID_MM
and MEGARAID_MAILBOX
drivers to the kernel; I do notice that this
makes other
changes in the .config file.
I can boot dom0 and create
and start other domains. Unfortunately,
whenever I do
anything involving much disk access, or so it appears,
the kernel appears to hang. I have a DELL DRAC card (for what
it's
worth), and I can get in on the serial console and
use SysRq to
send commands to the hung system, so I know
the kernel is still
responding, but all ssh sessions
active on dom0 or on any other
domain hang. The syslog
shows no message before the reboots,
and there are no
particular error messages in xend.log.
Has anyone else
seen something similar? Is this a known problem,
and can
it be fixed? Thanks for your comments.
-- Owen
Dr A V Le Blanc
I painfully went through this and
spent over a month trying to figure it out with 2 PE2850's. One gracious
XEN user pointed out that the USB controllers were the source of my
problems. I disabled all USB controllers and removed he drivers using
'make menuconfig' and both servers are pretty much humming along. Not a
single hang since then.
Now networking is a whole other
issue...still need to crack that egg.
Max Baro
Technical
Support Supervisor
FACTS Services, Inc.
(305) 284 - 7440
meb@xxxxxxxxxxxxxxxxx
