kern/122318 (CMake core dumping, chroot exiting)

[Chagin Dmitry]

On Fri, 25 Jul 2008, Sean C. Farley wrote:

>>>>> 
>>>> 
>>>> uname must work on all supported linuxulators
>>> 
>>> I agree, and it does work until I start playing with the Linux
>>> version.  This problem may or may not be related to the cmake issue.
>>> 
>>>> I can't reproduce problem, my output on linuxulator64:
>>> 
>>> 8-CURRENT vs 7-STABLE issue maybe?
>>> 
>> 
>> don't think so
>> 
>>>> at me only one idea - create shell script like this:
>>>> 
>>>> #!/bin/sh
>>>> sleep 30
>>>> /usr/bin/cmake .
>>>> 
>>>> run it,
>>>> ps -ax | grep you_script_name
>>>> ktrace -di -p you_script_pid -f /ttt/tracefile.out
>>>> 
>>>> and show result. thnx!
>>> 
>>> OK.  I obtained a trace file[1].  Amusingly, bash also died in this
>>> scenario.
>>> 
>>> Sean
>>>  1. http://www.farley.org/freebsd/tmp/ktrace.out.bz2
>> 
>> I can't use it on -current, ktrace abi was changed. please, make
>> itself linux_kdump :)
>
> Picky, picky!  :)  Here[2] you go.
>
> Sean
>  2. http://www.farley.org/freebsd/tmp/ktrace.txt
>

With COMPAT_LINUX32 the mistake really exists...

ora# chroot /compat/linux /bin/bash
bash-3.2#
bash-3.2# uname -a
Linux ora.chd.net 2.6.16 FreeBSD 8.0-CURRENT #4: Sat Jul 26 01:35:52 MSD 
2008 i686 i686 i386 GNU/Linux
bash-3.2#
bash-3.2# cd /opt
bash-3.2# mkdir a
bash-3.2# cd a
bash-3.2# touch CMakeLists.txt
bash-3.2# whereis cmake
cmake: /usr/bin/cmake /usr/share/cmake /usr/share/man/man1/cmake.1.gz
bash-3.2# /usr/bin/cmake .
-- Check for working C compiler: /usr/bin/gcc
Segmentation fault (core dumped)
bash-3.2#

let's look :)

-- 
Have fun!
chd