Date: Fri, 25 Jul 2008 15:57:12 -0500 (CDT) From: "Sean C. Farley" <scf@FreeBSD.org> To: Chagin Dmitry <chagin.dmitry@gmail.com> Cc: Roman Divacky <rdivacky@FreeBSD.org>, freebsd-emulation@FreeBSD.org Subject: Re: kern/122318 (CMake core dumping, chroot exiting) Message-ID: <alpine.BSF.1.10.0807251556100.31063@thor.farley.org> In-Reply-To: <alpine.BSF.1.10.0807260044170.1162@ora.chd.net> 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> <alpine.BSF.1.10.0807260044170.1162@ora.chd.net>
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On Sat, 26 Jul 2008, Chagin Dmitry wrote:
> 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 :)
Picky, picky! :) Here[2] you go.
Sean
2. http://www.farley.org/freebsd/tmp/ktrace.txt
--
scf@FreeBSD.org
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