Kernel Panic with LTP on 2.6.11-rc1 (was Re: LTP Results for 2.6.xand 2.4.x)

[Bryce Harrington]

On Tue, 18 Jan 2005, Bryce Harrington wrote:
> Here's an updated summary of our LTP regression test runs against the
> 2.6.x and 2.4.x kernels on RedHat 9.0:
>
>     http://developer.osdl.org/bryce/ltp/
>
> I've run into some issues with patch-2.6.11-rc1 and the latest LTP, but
> will post numbers when I've sorted those out.

Okay, it looks like there is a regression of Linux 2.6.11-rc1 on LTP.

I've run a bunch of tests to narrow down and rule things out:

   * Other tests (e.g. open_posix) run ok on this kernel
   * This version of LTP is working fine on other kernels
   * Not a hardware problem; same issue occurs on all of our 2-ways
   * Not distro-dependent; problem occurs for me on RH 9.0, and SuSE 9.0
     and 9.2

Here is the output from the test causing the panic:

<<<test_start>>>
tag=gf13 stime=1106333359
cmdline="mkfifo gffifo18; growfiles -b -W gf13 -e 1 -u -i 0 -L 30 -I r
-r 1-4096 gffifo18"
contacts=""
analysis=exit
initiation_status="ok"
<<<test_output>>>
growfiles(gf13): 17094 DEBUG1 Using random seed of 1106350453
Kernel panic - not syncing: Out of memory and no killable processes...


The full output are available at these links:

FAIL   LTP  2.6.11-rc1  SuSE 9.0  2-way  http://khack.osdl.org/stp/300213/
FAIL   LTP  2.6.11-rc1  SuSE 9.2  2-way  http://khack.osdl.org/stp/300219/
FAIL   LTP  2.6.11-rc1  SuSE 9.2  1-way  http://khack.osdl.org/stp/300209/

OK     LTP  2.6.10      SuSE 9.2  2-way  http://khack.osdl.org/stp/300230
OK     LTP  2.6.10      SuSE 9.0  2-way  http://khack.osdl.org/stp/300229
OK     LTP  2.6.10      RH 9.0    2-way  http://khack.osdl.org/stp/300228
OK     OPTS 2.6.11-rc1  RH 9.2    2-way  http://khack.osdl.org/stp/300227


These are all run on the December version of LTP (20041203).
growfiles.c is in ltp-full-20041203/testcases/kernel/fs/doio.

Bryce


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