RE: cygwin 1.3.3 WinNT4.0 munmap invalid argument

["Shane Mann" <shanem at citr dot com dot au>]

OK - I wasn't sure what the list would be like - after 100+ emails overnight
I see it is quite active.

I have created a test case - hopefully it's not to hard to follow. I can
compile and run it under redhat linux with no errors, but not under cygwin.
There are 2 parts, the c code (munmap_test.c) and a text file
(cygcheck.out) - as the mapping is using a file descriptor. I thought it may
be useful to make the text file the output from cygwin configuration
diagnostics. In both cases gcc with no other options was used to compile.

Thanks in Advance,
Shane



Shane Mann
Software Engineer          Phone: +61-7-3259-2223
CiTR Pty Ltd               Fax:   +61-7-3259-2259
339 Coronation Drive,      Email: shanem@citr.com.au
Milton, QLD, 4064          Web:   http://www.citr.com.au


> -----Original Message-----
> From: cygwin-owner@cygwin.com [mailto:cygwin-owner@cygwin.com]On Behalf
> Of Corinna Vinschen
> Sent: Wednesday, 26 June 2002 18:08
> To: cygwin@cygwin.com
> Subject: Re: cygwin 1.3.3 WinNT4.0 munmap invalid argument
>
>
> On Wed, Jun 26, 2002 at 02:15:43PM +1000, Shane Mann wrote:
> > Hi,
> >
> > I am having trouble with a munmap call failing with an invalid argument.
> > munmap seems to have 3 error conditions, I can eliminate 2 of those (len
> > <=0, and mem block size not divisible by page size), which leave me with
> > address + size outside process memory space. Is this a common problem?
> > Following is some debug output:
> >
> > Just Mmaped 20480 which is now at address 1A440000
> >
> > About to UnMapp 20480 at 1A440000
> >
> > The code works fine under Linux but falls over with munmap:
> Invalid Argument
> > under cygwin gcc.
> >
> > Any help appreciated.
>
> Not enough info.  Please create a *simple* testcase and send it to
> this list.
>
> Corinna
>
> --
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Developer                                mailto:cygwin@cygwin.com
> Red Hat, Inc.
>
> --
> Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
> Bug reporting:         http://cygwin.com/bugs.html
> Documentation:         http://cygwin.com/docs.html
> FAQ:                   http://cygwin.com/faq/
>

Attachment: munmap_test.c
Description: Binary data

Attachment: cygcheck.out
Description: Binary data

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/