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Bug#505639: marked as done (udev loads "rndis_host" for ACM modem and crash the kernel)

Your message dated Thu, 30 Jul 2009 22:10:59 +0200
with message-id <20090730201059.GB24666@galadriel.inutil.org>
and subject line Re: udev loads "rndis_host" for ACM modem and crash the kernel
has caused the Debian Bug report #505639,
regarding udev loads "rndis_host" for ACM modem and crash the kernel
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
505639: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=505639
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: udev
Version: 0.105-4
Severity: important

Hello Maintainer,

I have an embedded Router with ACM/GSM Modem and if I  disable  the  ACM
modem then is all working fine,  but  of  course,  I  have  no  Internet
connection.

Now if I activate the modem it show up as:

Nov 14 01:04:29 router kernel: usb 1-1: new full speed USB device using uhci_hcd and address 2
Nov 14 01:04:29 router kernel: usb 1-1: configuration #1 chosen from 1 choice
Nov 14 01:04:29 router kernel: cdc_acm 1-1:1.8: ttyACM0: USB ACM device

which is ok and I can configure "pppd" but after this line,  the  kernel
crash immediately with:

Nov 14 01:04:40 router kernel: usbcore: registered new driver cdc_ether
Nov 14 01:04:40 router kernel: rndis_host 1-1:1.10: RNDIS init failed, -32
Nov 14 01:04:40 router kernel: usb%%d: unregister 'rndis_host' usb-0000:00:07.2-1, RNDIS device
Nov 14 01:04:40 router kernel: unregister_netdevice: device usb%%d/c518a800 never was registered
Nov 14 01:04:40 router udevd-event[2250]: run_program: '/sbin/modprobe' abnormal exit
Nov 14 01:04:40 router kernel: ------------[ cut here ]------------
Nov 14 01:04:40 router kernel: kernel BUG at mm/slab.c:595!
Nov 14 01:04:40 router kernel: invalid opcode: 0000 [#1]
Nov 14 01:04:40 router kernel: SMP
Nov 14 01:04:40 router kernel: Modules linked in: rndis_host cdc_ether usbnet ipv6 button ac battery dm_snapshot dm_mirror dm_mod loop cdc_acm tsdev pcmcia firmware_c
lass psmouse intel_agp agpgart shpchp pci_hotplug rtc i2c_piix4 serio_raw yenta_socket rsrc_nonstatic pcmcia_core i2c_core pcspkr evdev ext3 jbd mbcache ide_generic i
de_disk ide_cd cdrom generic uhci_hcd e100 mii usbcore piix ide_core thermal processor fan
Nov 14 01:04:40 router kernel: CPU:    0
Nov 14 01:04:40 router kernel: EIP:    0060:[<c0156d53>]    Not tainted VLI
Nov 14 01:04:40 router kernel: EFLAGS: 00010046   (2.6.18-6-686 #1)
Nov 14 01:04:40 router kernel: EIP is at kfree+0x2e/0x65
Nov 14 01:04:40 router kernel: eax: 80000000   ebx: c518aac0   ecx: c7fef7a0   edx: c10a3080
Nov 14 01:04:40 router kernel: esi: 00000282   edi: c5184392   ebp: c518a800   esp: c52c9e18
Nov 14 01:04:40 router kernel: ds: 007b   es: 007b   ss: 0068
Nov 14 01:04:40 router kernel: Process modprobe (pid: 2254, ti=c52c8000 task=c7588550 task.ti=c52c8000)
Nov 14 01:04:40 router kernel: Stack: c518aac0 c898560e c518a806 c898501a c7701400 c899e6a0 c6b44f68 c50ce000
Nov 14 01:04:40 router kernel:        ffffffe0 c747fe00 00000000 00000000 00000001 00000001 00000001 00000001
Nov 14 01:04:40 router kernel:        c899e660 c7701400 c899f520 c899f550 c0210e08 c8838ba5 c7701414 c7701414
Nov 14 01:04:40 router kernel: Call Trace:
Nov 14 01:04:40 router kernel:  [<c898501a>] usbnet_probe+0x4ee/0x503 [usbnet]
Nov 14 01:04:40 router kernel:  [<c0210e08>] __driver_attach+0x0/0x5d
Nov 14 01:04:40 router kernel:  [<c8838ba5>] usb_probe_interface+0x58/0x87 [usbcore]
Nov 14 01:04:40 router kernel:  [<c0210d69>] driver_probe_device+0x42/0x8b
Nov 14 01:04:40 router kernel:  [<c0210e40>] __driver_attach+0x38/0x5d
Nov 14 01:04:40 router kernel:  [<c021088a>] bus_for_each_dev+0x33/0x55
Nov 14 01:04:40 router kernel:  [<c0210cd3>] driver_attach+0x11/0x13
Nov 14 01:04:40 router kernel:  [<c0210e08>] __driver_attach+0x0/0x5d
Nov 14 01:04:40 router kernel:  [<c02105a3>] bus_add_driver+0x64/0xfd
Nov 14 01:04:40 router kernel:  [<c88389da>] usb_register_driver+0x60/0xbb [usbcore]
Nov 14 01:04:40 router kernel:  [<c01358d9>] sys_init_module+0x16c3/0x1846
Nov 14 01:04:40 router kernel:  [<c0102c11>] sysenter_past_esp+0x56/0x79
Nov 14 01:04:40 router kernel: Code: 56 89 c7 53 74 58 9c 5e fa 8d 90 00 00 00 40 c1 ea 0c c1 e2 05 03 15 70 f3 36 c0 8b 02 f6 c4 40 74 03 8b 52 0c 8b 02 84 c0 78 08
<0f> 0b 53 02 81 b0 29 c0 89 e0 8b 4a 18 25 00 e0 ff ff 8b 40 10
Nov 14 01:04:40 router kernel: EIP: [<c0156d53>] kfree+0x2e/0x65 SS:ESP 0068:c52c9e18
Nov 14 01:04:58 router kernel:  <6>CSLIP: code copyright 1989 Regents of the University of California
Nov 14 01:04:58 router kernel: PPP generic driver version 2.4.2
Nov 14 01:04:58 router pppd[2302]: pppd 2.4.4 started by root, uid 0
Nov 14 01:04:58 router pppd[2302]: Failed to open /dev/ttyACM0: Input/output error
Nov 14 01:05:28 router pppd[2302]: Failed to open /dev/ttyACM0: Input/output error

So  it  seems,  my  device  is  "CDC  ethernet"  capable  but  there  is
definitively a bug in udev/modprobe/kernel.

While reading the documentation from "udev" I have nothing found, HOW to
blacklist the modules

rndis_host              6255  1
cdc_ether               5888  1 rndis_host
usbnet                 15464  2 rndis_host,cdc_ether

Also no one has respond to my request on Mailinglistes...

Please can you help me?

And of course, disabling modules should be well documented.

Thanks, Greetings and nice Day/Evening
    Michelle Konzack
    Systemadministrator
    24V Electronic Engineer
    Tamay Dogan Network
    Debian GNU/Linux Consultant


-- 
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##################### Debian GNU/Linux Consultant #####################
Michelle Konzack   Apt. 917                  ICQ #328449886
+49/177/9351947    50, rue de Soultz         MSN LinuxMichi
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--- End Message ---
--- Begin Message --- 
On Thu, Jul 30, 2009 at 09:27:43PM +0200, Michelle Konzack wrote:
> Hello Moritz,
> 
> Am 2009-07-29 21:30:21, schrieb Moritz Muehlenhoff:
> > Did you upgrade this system to Lenny in the mean time? If so, does the error
> > persist?
> 
> No, only a recompiled Lenny Kernel for my system and it works  now.  The
> Lenny binaries are arround 6 MByte bigger then my 64 MByte Flash-Disk.

Thanks, marking that version as fixed, then.

Cheers,
        Moritz

--- End Message ---
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