Re: [PATCH 0/2] cryo: Re-enable checkpointing of thread area

[Benjamin Thery <benjamin.thery-6ktuUTfB/bM@public.gmane.org>]

Benjamin Thery wrote:
> I found the cause of one of the general protection faults I saw with
> my test program and I finally managed to completely restart (a very 
> dumb) program for the first time!
> 
> My program was failing (GPF) at restart in glibc code. After some 
> debugging I found the failures occur on SINGLE_THREAD_P calls 
> (eg. glibc/sysdeps/posix/system.c:__libc_system()).
> 
> I suspected a problem with nptl and remembered the comments in cr.c 
> ("for redhat 9.0, NPTL") and in cr.txt ("Support linuxthreads, but not 
> NPTL."). I uncommented this code that checkpoints the thread area 
> (don't ask me what it is) and, voila, my program restarted!
> 
> It doesn't solve everything: I still have issues restarting the 'sleep'
> program.

I spoke too fast... in fact I have no more issue with sleep or mksysvipc 
programs. They both restart fine now. :)

Benjamin


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