Commit 94c4fcec authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'irq-core-for-linus' of...

Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Force MSI irq handlers to run with interrupts disabled
parents 14e71e4f 753649db
...@@ -757,6 +757,16 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) ...@@ -757,6 +757,16 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
if (new->flags & IRQF_ONESHOT) if (new->flags & IRQF_ONESHOT)
desc->status |= IRQ_ONESHOT; desc->status |= IRQ_ONESHOT;
/*
* Force MSI interrupts to run with interrupts
* disabled. The multi vector cards can cause stack
* overflows due to nested interrupts when enough of
* them are directed to a core and fire at the same
* time.
*/
if (desc->msi_desc)
new->flags |= IRQF_DISABLED;
if (!(desc->status & IRQ_NOAUTOEN)) { if (!(desc->status & IRQ_NOAUTOEN)) {
desc->depth = 0; desc->depth = 0;
desc->status &= ~IRQ_DISABLED; desc->status &= ~IRQ_DISABLED;
......
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