Re: Hangs with NGPT 1.2.1

"Bill Abt" <[email protected]> Mon, 29 Apr 2002 07:31:41 -0400

Newsgroups	gmane.linux.ngpt.user
Message-ID	<[email protected]>

On 04/26/2002 at 04:08:45 PM MST, "Praveen Gonugunta" <[email protected]>
wrote:

> We're experiencing a similar hang. NGPT 1.2.0 works well, but with NGPT
> 1.2.1, none of the tests that come with the package run. They all hang.
>
> Here's a chunk of strace output of test_pthread. The main thread hangs
> after the select() call at the end. The child threads never wake up to
> print anything.
>

Praveen, this looks very much like what we see when someone has a kernel
running that used an earlier NGPT patch.  I suspect the value you have for
__NR_tkill is incorrect.  This value should be 238 so that you're in sync
with the latest accepted kernel patches for NGPT.

Regards,
     Bill Abt
     Senior Software Engineer
     Next Generation POSIX Threading for Linux
     IBM Cambridge, MA, USA 02142
     Ext: +(00)1 617-693-1591
     T/L: 253-9938 (Normal)
     T/L: 693-1591 (Backup)
     Cell: +(00)1 617-803-7514
     [email protected] or [email protected]
     http://oss.software.ibm.com/developerworks/opensource/pthreads