Subj : Re: why my threads do not wake up
To   : comp.programming.threads
From : roger.faulkner
Date : Thu Aug 25 2005 12:33 am


Jingbo wrote:
> It is Solaris 8. I can not post my code. But I'm trying to derive a
> simpler code to demostrate the problem and then post here. Thanks.

Ok.  The default libthread on Solaris 8 and before needs
pthread_setconcurrency() or for threads to be created with
PTHREAD_SCOPE_SYSTEM in order to work as you desire/expect.

On Solaris 9 and thereafter, you would see no problem.

On Solaris 8, you can use the alternate libthread.
Either:
    export LD_LIBRARY_PATH=/usr/lib/lwp
or link with:
    -L/usr/lib/lwp -R/usr/lib/lwp

There is no alternate libthread prior to Solaris 8.

If you are up-to-date with libthtread patches, the alternate
libthread is identical to the only libthread on Solaris 9.

Roger Faulkner
Sun Microsystems

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