Daniel found a bug in smpschedaffinity05 where the semaphore was being held by a task that was being switched out and the semaphore was not released because the task wasn't being switched back in at any point. This would cause the test to lock waiting on the semaphore and not finish. This set of tasks request the semaphore with a no wait option. I think the same thing can happen in smpschedaffinity02, and smpschedaffinity04. That is the reason for the three patches.
> -----Original Message----- > From: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de] > Sent: Wednesday, November 12, 2014 9:41 AM > To: Joel Sherrill; Gedare Bloom; Jennifer Averett > Cc: rtems-de...@rtems.org > Subject: Re: [PATCH 3/3] smpschedaffinity05: Change semaphore attributes. > > On 12/11/14 16:39, Joel Sherrill wrote: > > Daniel Cederman found a bug > > in the semaphore used to protect the data used to control the threads > > and migration. > > What is this for a bug? > > -- > Sebastian Huber, embedded brains GmbH > > Address : Dornierstr. 4, D-82178 Puchheim, Germany > Phone : +49 89 189 47 41-16 > Fax : +49 89 189 47 41-09 > E-Mail : sebastian.hu...@embedded-brains.de > PGP : Public key available on request. > > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
