more on my slab problem

more on my slab problem

[Steven Seeger]

The page fault is happening in __wake_up_common() On the 3rd time through
the list_for_each() block, a wait_queue_t *curr = list_entry(tmp,
wait_queue_t, task_list); line returns a curr of 0xFFFFFFF8 and it page
faults on the p = curr->task line because obviously that's a bad address.
(page faults on 0xFFFFFFFC)

I'm sorry to write to both lists but neither has a lot of activity and I'm
hoping somebody on one of the lists could help.

Steve

more on my slab problem

[Steven Seeger]

The page fault is happening in __wake_up_common() On the 3rd time through
the list_for_each() block, a wait_queue_t *curr = list_entry(tmp,
wait_queue_t, task_list); line returns a curr of 0xFFFFFFF8 and it page
faults on the p = curr->task line because obviously that's a bad address.
(page faults on 0xFFFFFFFC)

I'm sorry to write to both lists but neither has a lot of activity and I'm
hoping somebody on one of the lists could help.

Steve

Re: more on my slab problem

[Vivien Chappelier]

On Sat, 6 Jul 2002, Steven Seeger wrote:

> The page fault is happening in __wake_up_common() On the 3rd time through
> the list_for_each() block, a wait_queue_t *curr = list_entry(tmp,
> wait_queue_t, task_list); line returns a curr of 0xFFFFFFF8 and it page
> faults on the p = curr->task line because obviously that's a bad address.
> (page faults on 0xFFFFFFFC)
> 
> I'm sorry to write to both lists but neither has a lot of activity and I'm
> hoping somebody on one of the lists could help.

Hi,

	I've already encountered a similar problem before, binutils was
producing bad data for the initialization of the waitq. This was with
binutils 2.11.92.0.10.
	I worked around the problem by simply moving 
DECLARE_WAIT_QUEUE_HEAD(kswapd_wait);
	to the beginning of the mm/vmscan.c file, however, you should
consider upgrading your toolchain if you're using the same version of
binutils I used.

references:
http://www.spinics.net/lists/mips/msg09771.html
http://www.spinics.net/lists/mips/msg09210.html

regards,
Vivien Chappelier.

Re: more on my slab problem

[Vivien Chappelier]

> This was with binutils 2.11.92.0.10.

Sorry, this was actually binutils 2.9.5

Re: more on my slab problem

[H. J. Lu]

On Sun, Jul 07, 2002 at 11:44:56AM +0200, Vivien Chappelier wrote:
> > This was with binutils 2.11.92.0.10.
> 
> Sorry, this was actually binutils 2.9.5
> 

That binutils is broken. The binutils in my RedHat/mips 7.1/7.3 should
be ok. If not, I'd like to see a testcase.


H.J.