Messages in this thread | | | Subject | Re: [PATCH] bug in 2.4 bh_kmap_irq() breaks IDE under preempt patch | From | Alan Cox <> | Date | 12 Mar 2003 23:27:28 +0000 |
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On Wed, 2003-03-12 at 22:13, Joe Korty wrote: > The bug is that bh_map_irq *conditionally* calls kmap_atomic (which > disables preemption as one of its functions), while bh_unmap_irq > *unconditionally* calls kunmap_atomic (which enables it). This
Thats a pre-empt bug ont a bh_map_irq bug. I'm glad you've found it however. It explains a few things and will be useful for people wanting pre-empt 2.4 .
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