lkml.org 
[lkml]   [2006]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC] page fault retry with NOPAGE_RETRY
On Fri, 22 Sep 2006 08:05:04 +1000
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:

> > So I think there's a nasty DoS here if we permit infinite retries. But
> > it's not just that - there might be other situations under really heavy
> > memory pressure where livelocks like this can occur. It's just a general
> > robustness-of-implementation issue.
>
> Got it. Now, changing args to no_page() will be a pretty big task....
>

Not as big as removing the pt_regs arg from every interrupt handler ;)

But pretty mechanical. Problem is, I don't think we have our mechanic.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-09-22 00:45    [W:0.061 / U:0.588 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site