Re: bug (isdn-subsystem?) in 2.4.0

[Kai Germaschewski]

On Mon, 15 Jan 2001, Ronny Buchmann wrote:

> i have the following problem with kernel 2.4.0 (also with -ac6):
>
> kernel BUG at slab.c:1095!
> invalid operand: 0000
> CPU: 0

I could reproduce the problem, the appended patch fixes it here. Linus,
could you please apply this for 2.4.1?

> ......
>
> (if you need the other numbers or anything else, ask me, i can reproduce
> it easily)

A decoded oops would be nice the next time, see

	<your linux kernel source>/REPORTING-BUGS

However, you gave enough information for me to reproduce the problem, so
it's fine this time.

Thanks,
--Kai

--- linux-2.4.1-pre2/drivers/isdn/isdn_v110.c%	Sun Aug  6 21:43:42 2000
+++ linux-2.4.1-pre2/drivers/isdn/isdn_v110.c	Mon Jan 15 22:31:43 2001
@@ -102,7 +102,7 @@
 	int i;
 	isdn_v110_stream *v;

-	if ((v = kmalloc(sizeof(isdn_v110_stream), GFP_KERNEL)) == NULL)
+	if ((v = kmalloc(sizeof(isdn_v110_stream), GFP_ATOMIC)) == NULL)
 		return NULL;
 	memset(v, 0, sizeof(isdn_v110_stream));
 	v->key = key;
@@ -134,7 +134,7 @@
 	v->b = 0;
 	v->skbres = hdrlen;
 	v->maxsize = maxsize - hdrlen;
-	if ((v->encodebuf = kmalloc(maxsize, GFP_KERNEL)) == NULL) {
+	if ((v->encodebuf = kmalloc(maxsize, GFP_ATOMIC)) == NULL) {
 		kfree(v);
 		return NULL;
 	}