Home » Mailing list archives » linux-kernel » 2010 » March » 25

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

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Andi Kleen
Subject: Re: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2
Date: Thursday, March 25, 2010 - 4:57 am

> Pretty much the only 'core' driver today which enables IRQs in the irq

Thanks. 

I'm tempted to just ignore it in this case, but in theory it might
still have troubles if there are a lot of interrupts to the same CPU.

I've only had a report on a very large system with a very high interrupt
rate on a very fast NIC though, so presumably it's not too common.

Anyways this patch will fix the problem for all drivers that do 
not explicitely enable interrupts, which is the overwhelming majority.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
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)