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Re: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2

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From: Peter Zijlstra
Subject: Re: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2
Date: Thursday, March 25, 2010 - 11:21 am

On Thu, 2010-03-25 at 11:01 -0700, Linus Torvalds wrote:

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.

But yeah, there's funky hardware around, but I think we should provide
more incentives to keep modern hardware drivers saner.



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Messages in current thread:
[PATCH] Prevent nested interrupts when the IRQ stack is ne ..., Andi Kleen, (Wed Mar 24, 12:02 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Wed Mar 24, 1:42 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Wed Mar 24, 4:08 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Wed Mar 24, 5:36 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Wed Mar 24, 6:46 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 2:37 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Alan Cox, (Thu Mar 25, 3:50 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Thu Mar 25, 4:09 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Thu Mar 25, 4:16 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 4:57 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Alan Cox, (Thu Mar 25, 4:59 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 5:00 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 5:11 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Thu Mar 25, 6:17 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 6:32 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Thu Mar 25, 7:16 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 8:38 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Alan Cox, (Thu Mar 25, 9:06 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Linus Torvalds, (Thu Mar 25, 9:13 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Linus Torvalds, (Thu Mar 25, 9:17 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Ingo Molnar, (Thu Mar 25, 9:27 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Ingo Molnar, (Thu Mar 25, 9:33 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Thomas Gleixner, (Thu Mar 25, 9:52 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Peter Zijlstra, (Thu Mar 25, 10:47 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Linus Torvalds, (Thu Mar 25, 11:01 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Peter Zijlstra, (Thu Mar 25, 11:21 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Peter Zijlstra, (Thu Mar 25, 11:23 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 11:27 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Ingo Molnar, (Thu Mar 25, 11:29 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 11:44 am)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Ingo Molnar, (Thu Mar 25, 12:01 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Linus Torvalds, (Thu Mar 25, 12:10 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., David Miller, (Thu Mar 25, 12:42 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Linus Torvalds, (Thu Mar 25, 1:40 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Ingo Molnar, (Thu Mar 25, 1:51 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Linus Torvalds, (Thu Mar 25, 1:53 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., David Miller, (Thu Mar 25, 8:33 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Eric W. Biederman, (Thu Mar 25, 9:55 pm)
Re: [PATCH] Prevent nested interrupts when the IRQ stack i ..., Andi Kleen, (Thu Mar 25, 11:10 pm)