kernel/5053: SMP kernel panic "TLB IPI rendezvouz failed" under load

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kernel/5053: SMP kernel panic "TLB IPI rendezvouz failed" under load

Mark Boddington-4
>Number:         5053
>Category:       kernel
>Synopsis:       SMP kernel panic "TLB IPI rendezvouz failed" under load.
>Confidential:   yes
>Severity:       critical
>Priority:       high
>Responsible:    bugs
>State:          open
>Quarter:        
>Keywords:      
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 13 17:00:02 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Mark Boddington
>Release:        stable OPENBSD_3_8
>Organization:
net
>Environment:

        System      : OpenBSD 3.8
        Architecture: OpenBSD.i386
        Machine     : i386
        Hardware    : IBM xSeries 345 (Dual Xeon (HT) 3.0Ghz)
>Description:

The Generic.MP kernel panics under load. While the macine is mostly idle
it's fine, but within
a few minutes of load it hangs or panics. This has occured with the
release and stable OPENBSD
3.8 kernels. Stable CVS from 2006-03-10.

>How-To-Repeat:

It has happend twice, first time was with the release kernel while
compiling libtool from ports.
The seconds time was with the stable kernel while compiling the system
to track stable. I had
already applied, built and was running the 5 security fixes in errata
before I checked out stable.

I also found this message, which looks like the same issue??
http://groups.google.co.uk/group/mailing.openbsd.bugs/browse_thread/thread/3318a700d68c7d71/71e31620806195a1?hl=en#71e31620806195a1

An image of the panic is available here:
http://www.atic88.dsl.pipex.com/openbsd-3.8-Panic.jpg

>Fix:


Thank you,
Mark


>Release-Note:
>Audit-Trail:
>Unformatted:

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Re: kernel/5053: SMP kernel panic "TLB IPI rendezvouz failed" under load

Michael Shalayeff-2
The following reply was made to PR kernel/5053; it has been noted by GNATS.

From: mickey <[hidden email]>
To: Mark Boddington <[hidden email]>
Cc: [hidden email]
Subject: Re: kernel/5053: SMP kernel panic "TLB IPI rendezvouz failed" under load
Date: Mon, 13 Mar 2006 20:58:52 +0100

 re
 try this diff:
 
 Index: i386/locore.s
 ===================================================================
 RCS file: /cvs/src/sys/arch/i386/i386/locore.s,v
 retrieving revision 1.96
 diff -u -r1.96 locore.s
 --- i386/locore.s 12 Jan 2006 15:59:03 -0000 1.96
 +++ i386/locore.s 10 Mar 2006 16:33:40 -0000
 @@ -173,6 +173,7 @@
  popl %edx ; \
  popl %ecx ; \
  popl %eax ; \
 + sti ; \
  addl $8,%esp ; \
  iret
 
 --
     paranoic mickey       (my employers have changed but, the name has remained)