topic Re: NMI error unknown reason b0. in Operating System - Linux

NMI error unknown reason b0.

Robert Walker_8 — Tue, 03 Mar 2009 08:09:07 GMT

Mar 3 03:01:06 test kernel: Uhhuh. NMI received for unknown reason b0.
Mar 3 03:01:06 test kernel: You probably have a hardware problem with your RAM chips
Mar 3 03:01:06 test kernel: Dazed and confused, but trying to continue

We have a couple of times gotten the above error. System stays up applications work without drama - has made management paranoid! Has happened 2 times since Oct 2008.

We run RHEL V5.2 with EMC SAN, there 128GB ram and heap of disk. No errors in HP IML no other errors seen.

Thanks,

Robert.

Re: NMI error unknown reason b0.

smatador — Tue, 03 Mar 2009 08:38:07 GMT

Hi,
There is the same error but not on the same box show on bugzilla
https://bugzilla.redhat.com/show_bug.cgi?id=453445
You could check sometime on bugzilla, if there is a solution perhaps on a newer release of the kernel.
Hope it helps

Re: NMI error unknown reason b0.

Robert Walker_8 — Tue, 03 Mar 2009 09:10:31 GMT

Gday smatador,

We have RHEL on a server which doesnt go into suspend mode.

Robert.

Re: NMI error unknown reason b0.

smatador — Tue, 03 Mar 2009 10:17:09 GMT

Hi,
No suspend mode and not the same box too I think. You could not put and EMC SAN and 128Gb of ram in a laptop :)
For me, this bugzilla shows only that redhat is working on this "sort" of problem in relation to the kernel.
So you could maybe open a case to RH to know more about this issue.

Re: NMI error unknown reason b0.

Robert Walker_8 — Wed, 04 Mar 2009 06:25:50 GMT

Problem found for those who are interested.

See
http://www11.itrc.hp.com/service/cki/docDisplay.do?docLocale=en&docId=emr_na-c01547608-17
http://www11.itrc.hp.com/service/cki/docDisplay.do?docLocale=en&docId=emr_na-c01583480
http://www11.itrc.hp.com/service/cki/docDisplay.do?docLocale=en&docId=emr_na-c01670591-1

Basically if your BIOS firmware is old ours was 01/30/2008 then you need to update it or you get weird errors on Linux and BSODs on Windows!

Thanks to one and all!

Robert.

Re: NMI error unknown reason b0.

Robert Walker_8 — Wed, 04 Mar 2009 06:26:45 GMT

As above problem is in BIOS and needed latest version!