Re: lirc_igorplugusb OOPS on disconnect

[Timo B. <sp...@sp...>]

Hi!

* Christoph Bartelmus <li...@ba...> wrote:
> Timo Boettcher "sp...@sp..." wrote:
> >  I am using lirc-0.8.6 on debian lenny with the igorplugusb receiver
> >  from http://www.xs4all.nl/~dicks/avr/usbtiny/.
> >  If I disconnect the device, I get an OOPS and USB isn't usable any more.
> >  Since I am using an old kernel (debian lenny patched 2.6.26-2) with
> > self-packaged  lirc, I want to make sure that this is not a problem specific
> > for my installation.  Can anybody verify/falsify that the igorplugusb does
> > indeed work in 0.8.{3,4,5,6}?
> There is a fix for this bug in CVS already. Try the CVS version.
Doesn't seem so. Just tried with CVS from 20100109 and debian
linux-image-2.6.26-2-amd64 and got the same OOPS on disconnect (see below).

Yes the kernel is outdated and tainted. If this could be a problem, please say so
and tell me which kernelversion to to try.

Any ideas on how to fix this?

 Timo




[ 2683.152924] lirc_igorplugusb[2]: usb remote disconnected
[ 2683.152999] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[ 2683.153002] IP: [<ffffffffa0ce50b6>] :lirc_igorplugusb:usb_remote_disconnect+0x45/0x8f
[ 2683.153008] PGD 10f1b1067 PUD 10d98f067 PMD 0 
[ 2683.153011] Oops: 0000 [1] SMP 
[ 2683.153013] CPU 2 
[ 2683.153015] Modules linked in: openafs(P) rfcomm hidp l2cap bluetooth ppdev parport_pc lp parport lirc_igorplugusb lirc_dev ipv6 nvidia(P) vboxdrv sbp2 loop usbhid hid ff_memless ftdi_sio usbserial sg sr_mod cdrom snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul usb_storage pata_marvell snd_emu10k1 ata_generic firmware_class snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_util_mem snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device i2c_i801 snd ohci1394 ide_pci_generic i2c_core ieee1394 floppy pcspkr sky2 emu10k1_gp ide_core gameport soundcore shpchp pci_hotplug ehci_hcd uhci_hcd button evdev ext3 jbd mbcache sha256_generic aes_x86_64 aes_generic cbc dm_crypt crypto_blkcipher dm_mirror dm_log dm_snapshot dm_mod raid1 md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod dock
[ 2683.153069] Pid: 168, comm: khubd Tainted: P          2.6.26-2-amd64 #1
[ 2683.153071] RIP: 0010:[<ffffffffa0ce50b6>]  [<ffffffffa0ce50b6>] :lirc_igorplugusb:usb_remote_disconnect+0x45/0x8f
[ 2683.153075] RSP: 0000:ffff81012f23dd30  EFLAGS: 00010246
[ 2683.153077] RAX: 0000000000000000 RBX: ffff8101229bce40 RCX: ffff810114d63900
[ 2683.153079] RDX: 03d00000a0ce65c0 RSI: 0000000000000040 RDI: ffffffffa0ce2c20
[ 2683.153080] RBP: ffff8101285ed888 R08: ffff8101285c0f50 R09: ffff81012fa42150
[ 2683.153082] R10: 0000000000000000 R11: ffffffff80382b97 R12: ffff81011ad07c00
[ 2683.153084] R13: ffffffffa0ce65c0 R14: 0000000000000000 R15: ffff81012dd1f000
[ 2683.153086] FS:  0000000000000000(0000) GS:ffff81012fa9e0c0(0000) knlGS:0000000000000000
[ 2683.153088] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 2683.153090] CR2: 0000000000000028 CR3: 0000000106027000 CR4: 00000000000006e0
[ 2683.153092] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2683.153094] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 2683.153096] Process khubd (pid: 168, threadinfo ffff81012f23c000, task ffff81012f22ade0)
[ 2683.153098] Stack:  ffff8101285ed800 ffff81011ad07c30 ffff8101285ed800 ffffffff80393380
[ 2683.153102]  ffff81011ad07c30 ffffffffa0ce6628 ffff81011ad07d90 ffff81012dd1f448
[ 2683.153105]  ffff81012dd1f000 ffffffff803853f8 ffff81012f17a1e0 ffff81011ad07c30
[ 2683.153107] Call Trace:
[ 2683.153113]  [<ffffffff80393380>] ? usb_unbind_interface+0x59/0xa6
[ 2683.153119]  [<ffffffff803853f8>] ? __device_release_driver+0x74/0x97
[ 2683.153122]  [<ffffffff8038543c>] ? device_release_driver+0x21/0x2d
[ 2683.153126]  [<ffffffff80384929>] ? bus_remove_device+0x8d/0xa1
[ 2683.153129]  [<ffffffff80383631>] ? device_del+0xf8/0x15d
[ 2683.153133]  [<ffffffff80390b2f>] ? usb_disable_device+0x6f/0xe8
[ 2683.153136]  [<ffffffff8038c9ed>] ? usb_disconnect+0x92/0x142
[ 2683.153141]  [<ffffffff8038dc27>] ? hub_thread+0x3f9/0xcfd
[ 2683.153149]  [<ffffffff80246201>] ? autoremove_wake_function+0x0/0x2e
[ 2683.153154]  [<ffffffff8038d82e>] ? hub_thread+0x0/0xcfd
[ 2683.153158]  [<ffffffff802460db>] ? kthread+0x47/0x74
[ 2683.153161]  [<ffffffff802301c9>] ? schedule_tail+0x27/0x5c
[ 2683.153165]  [<ffffffff8020cf28>] ? child_rip+0xa/0x12
[ 2683.153173]  [<ffffffff80246094>] ? kthread+0x0/0x74
[ 2683.153175]  [<ffffffff8020cf1e>] ? child_rip+0x0/0x12
[ 2683.153178] 
[ 2683.153178] 
[ 2683.153179] Code: 83 7b 40 00 74 6b 8b 73 10 48 c7 c7 cc 58 ce a0 31 c0 e8 71 03 55 df 48 8b 43 40 8b 78 28 e8 a9 b1 ff ff 48 8b 43 40 48 8b 40 60 <48> 8b 78 28 48 85 ff 74 05 e8 12 14 56 df 48 8b 43 40 48 8b 78 
[ 2683.153202] RIP  [<ffffffffa0ce50b6>] :lirc_igorplugusb:usb_remote_disconnect+0x45/0x8f
[ 2683.153205]  RSP <ffff81012f23dd30>
[ 2683.153207] CR2: 0000000000000028
[ 2683.153209] ---[ end trace dfedb27d35fa05a3 ]---