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Mail Archives: cygwin/2006/01/27/20:20:54

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To: cygwin AT cygwin DOT com
From: Ian Elbury <ielbury AT yahoo DOT com>
Subject: Cygwin heap problems
Date: Sat, 28 Jan 2006 01:03:31 +0000 (UTC)
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I have been having all kinds of problems with cygwin recently that have 
manifested themselves with some the of the following errors:

- stack write copy failed, 0x22E960..0x230000, done 0, windows pid 2287764, 
Win32 error 5 bash: fork: No error
- fatal error - couldn't allocate heap, Win32 error 487
- Post install shell scripts not completing etc.
- ++++++ more ... what a gong show!

I think that I have located the source of the heap allocation problem (at 
least in my case) and it appears to be the Logitech camera driver. I noticed 
that all processes loaded a DLL (LVPrcInj.dll - Logitech Helper DLL) and that 
when the sh.exe and bash.exe processes hung, there was a thread that was 
spending a lot of time in RtlConvertUiListToApiList(). Now that I have removed 
the driver, cygwin appears to be working correctly again.

I am not sure if this is the cause of other peoples problems in this area, but 
they want to verify if the have V9 of the Logitech drivers installed? I have 
another machine with a similar configuration and older Logitech drivers and it 
appears to work Ok.

Hopefully this helps in tracking down the heap problems or solves the heap 
problem????

Cheers


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