Re: SCHED_FIFO & system()

2008-01-18 Thread Steven Rostedt
On Thu, 17 Jan 2008 [EMAIL PROTECTED] wrote: > time kernel thread does not get scheduled. > > The thread that calls system("run_my_script") is configured as SCHED_OTHER. > > The Kernel is 2.6.21. Could you try the latest kernel, and if that still gives you problems, try out Ingo's sched-devel (fr

Re: SCHED_FIFO & system()

2008-01-18 Thread Gregory Haskins
Gregory Haskins wrote: (*) I have no information on whether the futex-plist implemetation was pulled from the tree to cause your regression. It is possible that the changes between 22 and 23 are just tickling your environment enough to bring out this RT-preempt issue. Hmm...seems I sho

Re: SCHED_FIFO & system()

2008-01-18 Thread Gregory Haskins
[EMAIL PROTECTED] wrote: Hello, I have some strange behavior in one of my systems. I have a real-time kernel thread under SCHED_FIFO which is running every 10ms. It is blocking on a semaphore and released by a timer interrupt every 10ms. Generally this works really well. However, there is a mod

Re: SCHED_FIFO & system()

2008-01-17 Thread Matias Sundman
Hi, I forgot to add one important detail - the Kernel is configured as - Preemptible Kernel (Low-Latency Desktop). Cheers // Matias [EMAIL PROTECTED] skrev: Hello, I have some strange behavior in one of my systems. I have a real-time kernel thread under SCHED_FIFO which is running every 10ms