Re: Cygwin Question?

[Igor Peshansky <pechtcha at cs dot nyu dot edu>]

On Sat, 19 May 2007, Dustin Ochoa wrote:

> Hello Igor,

Hi.  Questions about Cygwin should be directed to one of the Cygwin lists.
See <http://cygwin.com/acronyms/#PPIOSPE> for details.  Redirecting.
Please follow up to the list.

> I understand that you are quite knowledgeable on Cygwin and thought
> maybe you could quickly answer my question.  I'm attempting to run
> multiple csh scripts and after I start the third script, I get the
> following error message:
>
> Exception: STATUS_ACCESS_VIOLATION at eip=0022DAD0
> eax=00000000 ebx=00218EA0 ecx=00218C28 edx=7C90EB94 esi=00001000 edi=00000000
> ebp=0021BED8 esp=00218D70 program=C:\cygwin\bin\tcsh.exe, pid 4300, thread main
> cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
> Stack trace:
> Frame     Function  Args
> 0021BED8  0022DAD0  (006D648A, 0021BEF9, 00000001, 0040D830)
> 00220F08  0041117A  (006D6488, 00000000, 00000000, 00000000)
> 00224F68  00411259  (00442B1E, 00479050, 000001A0, 006D1BA8)
> 00224F88  004117AC  (006D1BA8, 00000000, 00225028, 61168030)
> 00224FC8  0041C289  (006E5AA8, 006D1BA8, 00479050, 00000002)
> 00224FE8  0041C3CD  (006E5AA8, 006D6488, 00000002, 00441301)
> 00225028  0041DA51  (006E3008, 006E5B28, 00000000, 00000000)
> 002278F8  0041B21A  (006E5B28, FFFFFFFF, 00000000, 00000000)
> 0022A1C8  0041AEFF  (006E5A28, FFFFFFFF, 00000000, 00000000)
> 0022ABC8  00401722  (00000001, 00000000, 00479050, 00000002)
> 0022CCE8  004038FA  (00000001, 61169728, 006D1008, 0022CC70)
> 0022CD98  61006148  (00000000, 0022CDD0, 610054C0, 0022CDD0)
> 610054C0  61004416  (0000009C, A02404C7, E8611001, FFFFFF48)
> 3 [main] csh 4300 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack)

This looks like an error deep inside tcsh code, but you'd probably have to
a) provide the exact steps you took to reproduce it (preferably by
reducing your scripts to simple test cases), and/or b) build tcsh with
debugging symbols and figure out where it crashes.

> Does Cygwin have a problem with running multiple scripts at the same
> time? If so, is there a way around this?

If Cygwin had a problem with running multiple scripts at the same time, it
would have been noticed already.  This sounds like either your local
configuration is broken (multiple cygwin1.dlls, known incompatible
software, etc), or you've stumbled upon a tcsh bug.

That said, I don't use tcsh, and can only offer some generic advice.
Take a look at <http://cygwin.com/problems.html> and follow the guidelines
for problem reporting (pay particular attention to the part that asks you
to provide your system configuration details).
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
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ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
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