Date: Sat, 26 Jul 2008 00:46:33 +0400 (MSD) From: Chagin Dmitry <chagin.dmitry@gmail.com> To: "Sean C. Farley" <scf@freebsd.org> Cc: freebsd-emulation@freebsd.org, Chagin Dmitry <chagin.dmitry@gmail.com> Subject: Re: kern/122318 (CMake core dumping, chroot exiting) Message-ID: <alpine.BSF.1.10.0807260044170.1162@ora.chd.net> In-Reply-To: <alpine.BSF.1.10.0807251511230.31063@thor.farley.org> References: <alpine.BSF.1.10.0807231236140.12600@thor.farley.org> <20080723184450.GA25356@freebsd.org> <alpine.BSF.1.10.0807231459030.12600@thor.farley.org> <alpine.BSF.1.10.0807240016340.28898@ora.chd.net> <alpine.BSF.1.10.0807231616570.12600@thor.farley.org> <20080725082156.GA41887@freebsd.org> <20080725083122.GA42835@freebsd.org> <alpine.BSF.1.10.0807251233470.1710@ora.chd.net> <alpine.BSF.1.10.0807251231050.30805@thor.farley.org> <alpine.BSF.1.10.0807252318130.1162@ora.chd.net> <alpine.BSF.1.10.0807251511230.31063@thor.farley.org>
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On Fri, 25 Jul 2008, Sean C. Farley wrote:
> On Fri, 25 Jul 2008, Chagin Dmitry wrote:
>
>> On Fri, 25 Jul 2008, Sean C. Farley wrote:
>>> On Fri, 25 Jul 2008, Chagin Dmitry wrote:
>>>>
>>>> yes, but I remember it was a question about chroot...
>>>
>>> I have the trouble in and out of the chroot (FC2-based) but also with
>>> linux_base-f{c4,c6,8}. I just ran it outside of the chroot to get
>>> the ktrace much more easily. This is on a FreeBSD 7 amd64 system
>>> running a 32-bit chroot.
>>>
>>
>> ugh... my head, sorry (((
>>
>>>> Sean, can you provide full command which you run?
>>>
>>> Steps to recreate:
>>> mkdir a
>>> cd a
>>> touch CMakeLists.txt
>>> /home/sfarley/chroot/usr/bin/cmake .
>>>
>>> System setup for 7-STABLE as of July 14th:
>>> compat.ia32.maxvmem: 0
>>> compat.ia32.maxssiz: 67108864
>>> compat.ia32.maxdsiz: 536870912
>>> compat.linux.oss_version: 198144
>>> compat.linux.osrelease: 2.6.16
>>> compat.linux.osname: Linux
>>> compat.linux32.maxvmem: 0
>>> compat.linux32.maxssiz: 67108864
>>> compat.linux32.maxdsiz: 536870912
>>>
>>> BTW, switching to compat.linux.osrelease=2.4.2, running some Linux
>>> applications and switching back to 2.6.16 does not leave Linux
>>> emulation in a happy state. Simple Linux applications such as uname
>>> start core dumping.
>>>
>>
>> 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 :)
--
Have fun!
chd
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