Unfortunately, this did not help. The documentation says that this
option is not supported on Linux. Strange as it is, purify does not have
any problems with threads until it encounters curl attempts to download
something.

Could it be that curl uses its own memory handling schema (e.g. a memory
pool), which purify partly substitutes with its own functions?

May the following message from purify could help. The stack frame above
Curl_connect_host() is "*unknown func* [pc=0x0]". It looks like for some
reason purify or whatever fails to find the "Curl_connect()" function.

-----Original Message-----
From: curl-library-bounces_at_cool.haxx.se
[mailto:curl-library-bounces_at_cool.haxx.se] On Behalf Of hzhijun
Sent: Wednesday, March 02, 2005 03:18
To: libcurl development
Subject: Re: Segfault with Purify when running an applicationthat
useslibcurl

----- Original Message -----
From: "Andrei Tarassov" <andrei.tarassov_at_altiris.ee>
To: "libcurl development" <curl-library_at_cool.haxx.se>
Sent: Tuesday, March 01, 2005 6:43 PM
Subject: RE: Segfault with Purify when running an application that
useslibcurl

> Yeap, that's a multi-threaded program.

Then it maybe the purify can't trace such deeper threads.

Try setting the following option in ur system and run again.

For example(in unix csh):
setenv PURIFYOPTIONS "-max_threads=200"

good luck!
>
> -----Original Message-----
> From: curl-library-bounces_at_cool.haxx.se
> [mailto:curl-library-bounces_at_cool.haxx.se] On Behalf Of hzhijun
> Sent: Tuesday, March 01, 2005 11:38
> To: libcurl development
> Subject: Re: Segfault with Purify when running an application that
> useslibcurl
>
>
> ----- Original Message -----
> From: "Andrei Tarassov" <andrei.tarassov_at_altiris.ee>
> To: "libcurl development" <curl-library_at_cool.haxx.se>
> Sent: Tuesday, March 01, 2005 4:29 PM
> Subject: Segfault with Purify when running an application that uses
> libcurl
>
>
> > Hi!
> >
> > I am experiencing difficulties with checking my application, which
> uses
> > curl functionality, with the Rational Purify tool. The application
> > crashes with a segmentation fault in Curl_connect_host() function at
> > line:
> > res = Curl_connect(data, conn, &async); (transfer.c:2045, curl
> > 7.12.3)
> >
> > The problem occurs on a RH72 box. Running the application without
> > Rational Purify does not cause any problems.
> >
> > Has anyone experienced the same problem or knows why this is
happening
> > and how it could be avoided?
> >
>
> Does ur application a multi-thread program?
> > Thanks,
> >
> > --
> > Andrei Tarassov
> > software engineer
> > altiris, inc.
> > T > +372- 6507154
> > M > +372-53-403298
> > www.altiris.com
> >
> >
>
Received on 2005-03-02