Andrew Morton wrote:
>
> There's a plugging bug in 2.5.19. Once you start pushing several disks
> hard, the new unplug code gets confused and queues are left in plugged
> state, but not on the plug list. They never get unplugged and the
> machine dies mysteriously.
>
This patch didn't fix it. It made it tons better, but I again have a
wedged box. Same symptoms - against IDE this time.
blk_plug_list is empty. queue_flags=0x03. Interestingly,
q->plug_list is non-empty, non-zero, both list members pointing at
a list which isn't either itself or blk_plug_list.
I note that the code isn't taking queues off the plug list when the queue
is destroyed. Guess that doesn't matter - we never destroy a plugged
queue...
This one is killing me.
-
-
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/
This archive was generated by hypermail 2b29 : Fri Jun 07 2002 - 22:00:12 EST