Memory problem with bttv driver

[Stephan von Krawczynski <skraw@ithnet.com>]

Hello,

yesterday we came across another MM related problem. This time its related to
the bttv-driver. We do very simple things:

First load it:

# modprobe bttv
Jan 14 17:28:14 fred kernel: bttv: driver version 0.7.83 loaded
Jan 14 17:28:14 fred kernel: bttv: using 2 buffers with 2080k (4160k total) for
capture Jan 14 17:28:14 fred kernel: bttv: Host bridge is VIA Technologies,
Inc. VT82C693A/694x [Apollo PRO133x] Jan 14 17:28:14 fred kernel: bttv: Host
bridge is VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] Jan 14 17:28:14
fred kernel: bttv: Bt8xx card found (0). Jan 14 17:28:14 fred kernel: bttv0:
Bt848 (rev 18) at 00:0c.0, irq: 16, latency: 32, memory: 0xef000000 Jan 14
17:28:14 fred kernel: bttv0: using: BT848A( *** UNKNOWN/GENERIC **)
[card=0,autodetected] Jan 14 17:28:14 fred kernel: i2c-core.o: adapter bt848 #0
registered as adapter 0. Jan 14 17:28:14 fred kernel: bttv0: i2c: checking for
MSP34xx @ 0x80... not found Jan 14 17:28:14 fred kernel: bttv0: i2c: checking
for TDA9875 @ 0xb0... not found Jan 14 17:28:14 fred kernel: bttv0: i2c:
checking for TDA7432 @ 0x8a... not found Jan 14 17:28:14 fred kernel:
i2c-core.o: driver i2c TV tuner driver registered. Jan 14 17:28:14 fred kernel:
tuner: chip found @ 0xc2 Jan 14 17:28:14 fred kernel: bttv0: i2c attach
[client=(unset),ok] Jan 14 17:28:14 fred kernel: i2c-core.o: client [(unset)]
registered to adapter [bt848 #0](pos. 0).

Then try to use it:

# xawtv
Jan 14 17:46:53 fred kernel: bttv: vmalloc_32(4259840) failed

... and exit of course.

Uh?
Interesting about it:
Does not work with 2.4.17 nor 2.4.18-pre3, but does work with 2.4.10-SUSE.
(Same setup, only booting another kernel)

Any hints?

Regards,
Stephan