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    SubjectRe: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2
    On Thu, 2010-03-25 at 19:21 +0100, Peter Zijlstra wrote:
    > On Thu, 2010-03-25 at 11:01 -0700, Linus Torvalds wrote:
    > > Are there any cases around
    > > that still have busy-loop delays based on real-time in their irq handlers?
    > > I simply don't know.
    > I recently found a few in drivers/net/ there's all kinds of funny stuff
    > in there.. not sure how common the matching hardware is though.
    > One thing we could do is instrument jiffies to yell when its used from
    > hardirq context and fix up these things.

    Also, Arjan mentioned he wanted to sweep the kernel for jiffies users
    and convert them to timer interfaces..

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      Last update: 2010-03-25 19:27    [W:0.026 / U:15.144 seconds]
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