Red Hat Bugzilla – Bug 222553
kernel BUG at mm/slab.c:594 when making Nokia E50 "PC Suite" connection
Last modified: 2007-11-30 17:11:53 EST
Description of problem: kernel BUG at mm/slab.c:594 when making Nokia E50 "PC Suite" connection Version-Release number of selected component (if applicable): kernel-2.6.18-1.2869.fc6 How reproducible: always Steps to Reproduce: 1. Connect Nokia e50 using USB cable 2. Choose PC Suite 3. BUG Actual results: see attached dmesg with: drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver for USB modems and ISDN adapters usbcore: registered new driver cdc_ether rndis_host 1-2:1.12: RNDIS init failed, -32 usb%d: unregister 'rndis_host' usb-0000:00:02.0-2, RNDIS device unregister_netdevice: device usb%d/eb183800 never was registered ------------[ cut here ]------------ kernel BUG at mm/slab.c:594! invalid opcode: 0000 [#1] Expected results: no crash - and perhaps something good happening automatically Additional info: Probably the same as http://lkml.org/lkml/2006/12/11/183 - but I can't find out if the problem was solved... Same BUG report, but seems to be something else: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=217086 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218687
Created attachment 145536 [details] dmesg after crash
Created attachment 145538 [details] dmesg after nokia e50 has been plugged in and the dust has settled
I've just posted my dmesg as an attachment. Note I'm running 2.6.18-1.fc6, which I believe is currently the latest. I only decided to start playing with this phone today, though, so I'm not sure how long ago the bug was introduced into the kernel. No "external" kernel modules are being loaded here. Not sure if this makes any difference, but this is on a Thinkpad T40 which has intel EHCI USB2 controllers. I was playing with the same phone on a RHEL system earlier today, and what is supposed to happen is: - the system sees a USB hub and the Nokia phone on that hub - a device /dev/ttyACM0 is created, through which you can do everything you would want to do
I forgot to mention: it's a dku-2 cable and the software on the phone is series 60
This sounds like bug 228231 that was fixed in 2.6.19-1.2911.6.3. Can you re-test with a later FC6 kernel and update this bugzilla if you are still having problems? Thanks,
I can confirm that I don't get crash with 2.6.20-1.2944.fc6. (I haven't been able to get any connection to the phone yet, but that is probably the operators fault.) I consider the issue solved. Thanks.