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Re: crash on latest cygwin snapshot


On Jun 26 11:04, Christopher Faylor wrote:
> On Tue, Jun 26, 2012 at 10:10:28AM -0400, Christopher Faylor wrote:
> >On Tue, Jun 26, 2012 at 07:53:05AM -0400, Ken Brown wrote:
> >>On 6/24/2012 5:30 PM, marco atzeri wrote:
> >>> while building latest atlas I hit a bug that is crashing all the running
> >>> cygwin process.
> >>> It crashes on 20120619 snapshot and also latest cvs source.
> >>> No issue on 20120611 snapshot.
> >>
> >>I'm also seeing this crash, but it does not kill all running cygwin 
> >>processes.  The only processes that die are the mintty processes and the 
> >>associated bash processes.  For example, it just happened a few minutes 
> >>ago, and XWin survived, along with emacs and xterm.
> >>
> >>It happens intermittently, maybe once every 3 days, and I haven't found 
> >>a simple sequence of steps for reproducing it.  All I can say for sure 
> >>is that I always have more than one mintty running, and they all die.
> >>
> >>Marco, are you sure all cygwin processes die when you experience this 
> >>problem?  Also, since you can reliably reproduce the crash, have you 
> >>tried reverting to the previous version of mintty?  Note that mintty was 
> >>updated just a few days before the 20120619 snapshot was released.
> >
> >He indicated that some processes kept running.
> >
> >But, hmm.  I haven't updated mintty lately.  I will try that.
> 
> This still just hangs my system by creating many /bin/sh and gcc jobs.
> What am I supposed to be seeing for output?  If I set the PATH to just
> /usr/bin, I see:
> 
> User Override Compilers:
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
>    'none' : 'none' '-fno-common'
> 
> and then no more output until I have to restart the machine due to
> excessive process creation.

This might be a result of the problem, too.  When I run the command
on W7 and W2008R2, it hangs a couple of seconds at this point, apparently
running a find(1) command, and then the output starts like this:

--- SNIP ---
ierr=256 in command='find $HOME/local /home/corinna/bin /usr/local/bin /usr/bin /bin /mnt/c/Windows/system32 /mnt/c/Windows /mnt/c/Windows/System32/Wbem /mnt/c/Windows/System32/WindowsPowerShell/v1.0 -name '*gcc*' -exec ./xisgcc '{}' \;'!

OUTPUT:
=======
find: `/home/corinna/local': No such file or directory
/usr/bin/gcc-4.exe
/usr/bin/gcc.exe
/usr/bin/i686-pc-cygwin-gcc-4.5.3.exe
/usr/bin/i686-pc-cygwin-gcc-4.exe
/usr/bin/i686-pc-cygwin-gcc.exe
/usr/bin/i686-pc-mingw32-gcc-4.5.2.exe
/usr/bin/i686-pc-mingw32-gcc.exe
/usr/bin/x86_64-w64-mingw32-gcc-4.5.3.exe
/usr/bin/x86_64-w64-mingw32-gcc.exe
/bin/gcc-4.exe
/bin/gcc.exe
/bin/i686-pc-cygwin-gcc-4.5.3.exe
/bin/i686-pc-cygwin-gcc-4.exe
/bin/i686-pc-cygwin-gcc.exe
/bin/i686-pc-mingw32-gcc-4.5.2.exe
/bin/i686-pc-mingw32-gcc.exe
/bin/x86_64-w64-mingw32-gcc-4.5.3.exe
/bin/x86_64-w64-mingw32-gcc.exe
[...]
--- SNAP ---

and then a couple of hundreds line of output with various make commands
or something like that.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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