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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: 1.5.18+ resource leak?
Date: Fri, 4 Nov 2005 14:58:13 -0000
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In-Reply-To: <Pine.CYG.4.58.0511040823350.508@PC1163-8460-XP.flightsafety.com>
Message-ID: <SERRANOIfpT8vWyu9ks00000170@SERRANO.CAM.ARTIMI.COM>

Brian Ford wrote:

> ssh user AT solaris_machine 'cd some_directory && tar cf -
> some_other_directory' | tar xvf -
> 
> These are large copies of several hundred megabytes.  Here was the result:
> 
> tar some_file_path: Cannot write: Permission denied
> 4 [main] -bash 2304 fork_copy: user/cygwin data pass 2 failed,
> 0x610000..0x627000, done 0, windows pid 3132, Win 32 error 1450
> 
> The only other operation running on the machine at the time was an ftp in
> another xterm window of a several hundred megabyte file.  It died with
> simply a permission denied error.
> 
> At this point, the machine is still responsive, but trying to do anything
> with any Cygwin process gives a similar error.  I've looked at the various
> resources, memory, handles, threads, etc. in the task manager and nothing
> looks unusually high.
> 
> Does anyone have a guess as to what resource I may be lacking (that
> presumably some Cygwin process leaked)?


  PTEs?  Kernel paged pool?

http://support.microsoft.com/kb/q236964/
http://support.microsoft.com/default.aspx?scid=kb;en-us;304101

both suggest using perfmon to monitor the kernel paged-pool size.  Try running
poolmon?  Try editing the HKLM\System\CCS\Control\Session Manager\Memory
Management keys (see 2nd url above) ?

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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