Re: [PATCH] Fix preemption off of irq context on x86-64 with PREEMPT_BKL

On Sun, Mar 27, 2005 at 01:19:06AM +0100, Christophe Saout wrote:
> Hi,
> 
> > x86_64-fix-config_preempt.patch
> >   x86_64: Fix CONFIG_PREEMPT
> 
> This patch causes another bug to show up some lines below with
> CONFIG_PREEMPT_BKL. schedule releases the BKL which it shouldn't do.
> 
> Call preempt_schedule_irq instead (like for i386). This seems to fix the
> easily reproducible filesystem errors I've seen (with reiserfs, which
> heavily relies on the BKL).

I would not apply this one for now. It needs checking if the
patch that requires this change does not require more changes.

-Andi


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References:
- 2.6.12-rc1-mm2
  - From: Andrew Morton <[email protected]>
- x86-64 preemption fix from IRQ and BKL in 2.6.12-rc1-mm2
  - From: Christophe Saout <[email protected]>
- [PATCH] Fix preemption off of irq context on x86-64 with PREEMPT_BKL
  - From: Christophe Saout <[email protected]>

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