Messages in this thread | | | Subject | Re: [PATCH] BUG(): sched.c: Line 944 | From | Robert Love <> | Date | 16 Sep 2002 19:58:09 -0400 |
| |
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/
| |