Re: MM kernels 2.6.24-rc*-mm*, 2.6.24-mm1: gnome-terminal stuck intty_poll

[J. K. Cliburn]

Zan Lynx wrote:

> gnome-terminal gets stuck.

I began seeing this very thing around 2.6.24 time.  (Fedora 8, vanilla 
kernel.)  I could usually cause the gnome terminal to hang if I rapidly 
resized the window while executing make check-headers.

Over a couple of days I bisected it down to this commit:

Commit:     37bb6cb4097e29ffee970065b74499cbf10603a3
Parent:     d3d74453c34f8fd87674a8cf5b8a327c68f22e99
Author:     Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
AuthorDate: Fri Jan 25 21:08:32 2008 +0100
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Fri Jan 25 21:08:32 2008 +0100

    hrtimer: unlock hrtimer_wakeup

    hrtimer_wakeup creates a

      base->lock
        rq->lock

    lock dependancy. Avoid this by switching to 
HRTIMER_CB_IRQSAFE_NO_SOFTIRQ
    which doesn't hold base->lock.

    This fully untangles hrtimer locks from the scheduler locks, and allows
    hrtimer usage in the scheduler proper.

    Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
    Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 kernel/hrtimer.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)


Reverting the commit seemed to fix the problem for me.

Then I went away on a business trip Monday morning and returned Tuesday 
night to a dead computer (won't POST), so I can't do any further 
troubleshooting until I get it fixed.

Try reverting that patch and see if your gnome-terminal freezes go away.

Jay
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