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<== Date ==> <== Thread ==>

Subject: VxWorks IOC machine check exception
From: "J. Lewis Muir" <jlmuir@imca-cat.org>
To: EPICS Tech-Talk <tech-talk@aps.anl.gov>
Date: Thu, 15 Oct 2015 15:15:40 -0500
Hello, Everyone!

I had a VxWorks IOC crash on me.  The only information I have is the
following from the console:

  machine check
  Exception next instruction address: 0x001722a0
  Machine Status Register: 0x0008b030
  Condition Register: 0x20000043
  Task: 0x1ef70f10 "tNetTask"^G
  Link Register: 0x0017228c

Is there any way to figure out the cause?  I gather that tNetTask has to
do with the VxWorks networking stack?  Does that tell me where the issue
was, or is that just where the issue happened to show up?  Any way to
use addr2line with this information?

Environment:

* VME processor module: Motorola MVME-5100 (vxWorks-ppc604_long)
  - CPU: MPC 750
  - Memory: 512 MB
* OS: VxWorks 5.5.2
* Kernel: WIND 2.6
* BSP: mv5100-anj-no-nfsv3 (from Andrew Johnson)
* Build toolchain: Tornado 2.2.2
* EPICS 3.14.12.3 (+ Known Problems patches except for the patch from
  2013-12-04)

Thank you!

Lewis

Replies:
Re: VxWorks IOC machine check exception Ron Sluiter

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