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[Bug 859473] Re: CI kernels causing many "Illegal Instruction"s

To: linaro-release@xxxxxxxxxxxxxxxxxxx
From: James Westby <jw+debian@xxxxxxxxxxxxxxx>
Date: Fri, 07 Oct 2011 22:04:30 -0000
Reply-to: Bug 859473 <859473@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I've reproduced this locally:

Just combining

http://ci.linaro.org/kernel_hwpack/omap3/hwpack_linaro-omap3_20111007-0028_armel_supported.tar.gz
http://snapshots.linaro.org/11.05-daily/linaro-nano/20111005/1/images/tar/nano-n-tar-20111005-1.tar.gz

with linaro-media-create (--rootfs ext2) should give you an image that
shows the problem.

Unfortunately my SD card seems have to have died, so I can't investigate
further.

Running many things would hit SIGILL. I installed gdb in order to try and get the
info Mans requested, but simply trying to start gdb got a SEGV.

Mans looked at the core:

<mru> gdb died reading a byte from a null pointer fwiw
<mru> it's crashing in one of the strtol family by the looks of it

This may be related to the SIGILL problems, but there is a chance that
it isn't.

I'm still unsure where the problem is, but I think the current evidence points to the
kernel, either the code itself, or something about the way that it is built under CI.

Anyone else have any good ideas?

Thanks,

James


** Summary changed:

- "Illegal instruction" hints when run stream and posixtestsuite
+ CI kernels causing many "Illegal Instruction"s

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https://bugs.launchpad.net/bugs/859473

Title:
  CI kernels causing many "Illegal Instruction"s

Status in LAVA Validation Lab:
  New
Status in LAVA Automated Testing Framework:
  New
Status in Linaro CI:
  Confirmed

Bug description:
  http://validation.linaro.org/lava-server/dashboard/streams/anonymous
  /ci-linux-arm-soc-for-
  next/bundles/df1d0476cd481e7b13fc8fbc7876149a00da4705/5fb90782-e7d9-11e0-9729-68b599be548c/attachments/10999/

  # root@linaro:~# [rc=0]: lava-test run smem -o /lava/results/smem-025113.bundle
  # lava-test run smem -o /lava/results/smem-025113.bundle
  #
  # Illegal instruction 
  and more causes all lava-test failed.

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