lkml.org 
[lkml]   [2001]   [Feb]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.4.2-ac3: loop threads in D state


On Mon, 26 Feb 2001, Jens Axboe wrote:

> On Sun, Feb 25 2001, Alexander Viro wrote:
> > Let me elaborate: the race is very narrow and takes deliberate efforts to
> > hit. It _can_ be triggered, unfortunately. This extra up() will mess your
> > life later on.
>
> What's the worst that can happen? We do an extra up, but loop_thread
> will still quit once we hit zero lo_pending. And loop_clr_fd
> is still protected by lo_ctl_mutex.

Well, for one thing you'll get some surprises next time you losetup
the same device ;-) There are more subtle scenarios, but that one
is pretty unpleasant in itself.
Cheers,
Al

-
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: 2005-03-22 13:17    [W:0.390 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site