Hello I have a similar situation: I get the following message when I'm connecting a nokia 6280 mobile phone.
Installed kernel is: linux-image-2.6.18-3-k7: Installiert:2.6.18-7 Mögliche Pakete:2.6.18-7 Versions-Tabelle: *** 2.6.18-7 0 1001 http://mirror.switch.ch etch/main Packages 100 /var/lib/dpkg/status Here are the call trace ------------[ cut here ]------------ kernel BUG at mm/slab.c:595! invalid opcode: 0000 [#1] SMP Modules linked in: rndis_host cdc_ether cdc_acm usbnet ppdev lp button ac battery ipv6 nfs lockd nfs_acl sunrpc ext2 ide_disk tsdev snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_mpu401 snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore snd_page_alloc parport_pc parport i2c_nforce2 i2c_core evdev psmouse serio_raw eth1394 analog gameport floppy pcspkr rtc ext3 jbd mbcache dm_mirror dm_snapshot dm_mod raid1 md_mod ide_generic sd_mod ide_cd cdrom sata_nv libata scsi_mod ohci1394 ieee1394 ehci_hcd forcedeth ohci_hcd usbcore generic amd74xx ide_core thermal processor fan CPU: 0 EIP: 0060:[<c01574b3>] Not tainted VLI EFLAGS: 00010002 (2.6.18-3-k7 #1) EIP is at kfree+0x2e/0x65 eax: 80000864 ebx: f7f4db00 ecx: dffff6c0 edx: c16fe8e0 esi: 00000282 edi: f7f47392 ebp: f7f4d800 esp: f34b9e14 ds: 007b es: 007b ss: 0068 Process modprobe (pid: 3377, ti=f34b8000 task=f3484000 task.ti=f34b8000) Stack: f7f4db00 f8aad62e f7f4d806 f8aad02d f5b2ac00 f8bc06a0 f568b4c8 f76b5000 ffffff92 c18fa400 00000000 00000000 00000001 00000001 00000001 00000001 f8bc0660 f5b2ac00 f8bc1520 f8bc1550 c02130a2 f88a1ceb f5b2ac14 f5b2ac14 Call Trace: [<f8aad02d>] usbnet_probe+0x4ea/0x4ff [usbnet] [<c02130a2>] __driver_attach+0x0/0x5d [<f88a1ceb>] usb_probe_interface+0x58/0x85 [usbcore] [<c0212ffd>] driver_probe_device+0x42/0x91 [<c02130da>] __driver_attach+0x38/0x5d [<c0212b1c>] bus_for_each_dev+0x37/0x59 [<c0212f67>] driver_attach+0x11/0x13 [<c02130a2>] __driver_attach+0x0/0x5d [<c021282b>] bus_add_driver+0x6b/0xfd [<f88a1b23>] usb_register_driver+0x60/0xbb [usbcore] [<c0135c8b>] sys_init_module+0x1732/0x18b5 [<c0116755>] __wake_up+0x2a/0x3d [<c0102bed>] sysenter_past_esp+0x56/0x79 Code: 89 c7 56 53 74 58 9c 5e fa 8d 90 00 00 00 40 c1 ea 0c c1 e2 05 03 15 90 53 37 c0 8b 02 f6 c4 40 74 03 8b 52 0c 8b 02 84 c0 78 08 <0f> 0b 53 02 76 ef 29 c0 89 e0 8b 4a 18 25 00 e0 ff ff 8b 40 10 EIP: [<c01574b3>] kfree+0x2e/0x65 SS:ESP 0068:f34b9e14 <6>usb 1-3: USB disconnect, address 2 Regards Matthias Kreis