lkml.org 
[lkml]   [2008]   [Sep]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC/PATCH] i386: handle all exceptions with interrupts off initially
Ingo Molnar wrote:
>
> the entry paths here are really short (we enable irqs almost
> immediately) so it's a non-issue in terms of worst-case latencies.
>
>> In other words, it's not something we want to do "just because", but
>> to the extent that it provides real benefit, it makes sense.
>
> this is historically pretty fragile code so bringing the 32-bit and
> 64-bit variants more in line sounds like a good reason to me. For
> example we had various long-living irq state annotation bugs (the
> combination of kprobes and lockdep, etc.) that remained unfixed partly
> due to this assymetry.
>

Agreed completely. I certainly didn't mean to come across sounding
negative.

-hpa



\
 
 \ /
  Last update: 2008-09-10 08:03    [W:0.038 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site