lkml.org 
[lkml]   [2002]   [Sep]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] BUG(): sched.c: Line 944
From
Date
On Mon, 2002-09-16 at 19:45, Linus Torvalds wrote:

> Ahhah! I know. You just make lock_depth 0 when you exit, without actually
> taking the kernel lock. Which fools the logic into accepting a
> preempt-disable, since it thinks that the preempt disable is due to
> holding the kernel lock.

I was this -> <- close to celebrating. Not so fast, smarty.

What about release_kernel_lock() ?

It sees task->lock_depth>=0 and calls spin_unlock() on a lock that it
does not hold.

Robert Love

-
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 13:28    [W:0.052 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site