Re: [PATCH] Tulip interrupt uses non IRQ safe spinlock
From: Paulo Marques
Date: Mon May 02 2005 - 09:17:43 EST
Mark Broadbent wrote:
The interrupt handling code in the tulip network driver appears to use a non
IRQ safe spinlock in an interrupt context. The following patch should correct
this.
Huh? Can a network interrupt handler be interrupted by the same interrupt?
AFAIK, the spin_lock_irqsave is to disable interruptions so that an
interrupt can not happen in the critical section, so that the interrupt
handler can not make modifications to shared data. Am I wrong?
--
Paulo Marques - www.grupopie.com
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke (1729 - 1797)
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