PROBLEM: kernel crash on USB-modem (Huawei E1750) hangup.

[O01eg]

Kernel crash on USB-modem (Huawei E1750) hangup.
When I try to connect to ISP modem can cause hangup. Sometimes kernel
crashes on those hangups.
Keywords: usb, networking, kernel, ppp.
Kernel version: Linux version 2.6.36-rc5 (root@o01eg) (gcc version 4.4.3
(Gentoo 4.4.3-r3 p1.4) ) #1 SMP PREEMPT Sat Sep 25 18:26:32 MSD 2010
ver_linux: Linux o01eg 2.6.36-rc5 #1 SMP PREEMPT Sat Sep 25 18:26:32 MSD
2010 x86_64 Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz GenuineIntel
GNU/Linux

Gnu C                  4.4.3
Gnu make               3.81
binutils               2.20.1.20100303
util-linux             2.17.2
mount                  support
module-init-tools      3.5
e2fsprogs              1.41.11
PPP                    2.4.4
Linux C Library        2.11.2
Dynamic linker (ldd)   2.11.2
Procps                 3.2.8
Net-tools              1.60
Kbd                    1.15
Sh-utils               8.5
Modules Loaded         tun nouveau ttm drm_kms_helper

Modules: tun 13643 0 - Live 0xffffffffa00b4000
nouveau 494829 1 - Live 0xffffffffa0028000
ttm 57005 1 nouveau, Live 0xffffffffa000f000
drm_kms_helper 28652 1 nouveau, Live 0xffffffffa0000000

Attachment: test.tar.bz2
Description: Binary data