[CentOS] Pb with 3ware 9550SX-4LP / high IO activities

Michael Kress kress at hal.saar.de
Wed Sep 27 15:48:54 UTC 2006


I'm sorry, I messed up the mailing list addresses - anyways, it's a bit
centos related and the thread touches the question "why on earth does my
3ware 9550SX-LP controller work under centos and why doesn't it work
under xen?" ;-)
for the discussion thread.
BTW, has anybody an idea about this issue?

Michael Kress schrieb:
> Jonas Björklund schrieb:
>> Hello,
>> On Tue, 26 Sep 2006, Michael Kress wrote:
>>> I tried the "in-kernel" driver, i.e. I modified the config to include
>>> 3w-9xxx in the kernel 2.6.16, not as a module. I must admit that the
>>> mkfs went through this time, but as soon as I do some additional 'dd' or
>>> 'cp' it doesn't take me longer than 10 sec to receive this crash (sorry,
>>> no more information than the screen, because the machine crashes and
>>> because it doesn't write logs for obvious reasons).
>>> Have you got some idea?
>> Do you have a 64-bit PCI or a 32-bit PCI?
> Hi,
> it's a 64-bit 133MHz PCI-X.
> see
> http://www.supermicro.com/products/motherboard/Xeon800/E7520/X6DH8-G2+.cfm
> There must be something different about the way the kernel and its
> components are composed and unfortunately I don't have the knowledge to
> find it. Under the kernel that came with CentOS (2.6.9) the controller
> works perfectly, it's only the 2.6.16 that comes with xen that produces
> trouble. Is there any more debug options I could activate to provide
> more details?
> I don't want to move away from xen although I've already tried (the)
> openvz (kernel), which works perfectly during high io load, but xen
> seems more sympathic to me. I hope this messy technical detail doesn't
> force me to change to a different product.
> Thanks for any more hints!
> ciao - Michael

Michael Kress, kress at hal.saar.de
http://www.michael-kress.de / http://kress.net
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