Re: [patch 0/3] j_state_lock, j_list_lock, remove-bitlocks

Lee Revell
2005-03-16T19:21:10Z

On Wed, 2005-03-16 at 12:47 -0500, Steven Rostedt wrote:
>
> On Wed, 16 Mar 2005, Steven Rostedt wrote:
>
> >
> > Hi Ingo,
> >
> > I just ran this with PREEMPT_RT and it works fine.
>
> Not quite, and I will assume that some of the other patches I sent have
> this same problem. The jbd_trylock_bh_state really scares me. It seems
> that in fs/jbd/commit.c in journal_commit_transaction we have the
> following code:

I am a bit confused, big surprise. Does this thread still have anything
to do with this trace from my "Latency regressions" bug report?

http://www.alsa-project.org/~rlrevell/2912us

The problem only is apparent with PREEMPT_DESKTOP and "data=ordered".

PREEMPT_RT has always worked perfectly.

Lee