Message-ID: <45426EC0.3070004@rrz.uni-koeln.de>
Date:	Fri, 27 Oct 2006 22:40:32 +0200
From:	Berthold Cogel <cogel@....uni-koeln.de>
To:	samuel@...tiz.org
CC:	linux-kernel@...r.kernel.org, irda-users@...ts.sourceforge.net
Subject: Oops in __wake_up_common with irda, linux-2.6.18

Hello!

I got a kernel Oops in __wake_up_common while receiving a file on my
notebook via irda  from a Pocket PC with 'ircp -r' (sending files to the
PocketPC works).

My System:
Acer Extensa 3002 WLMi notebook
Debian unstable/testing and irda-utils 0.9.18-3
linux-2.6.18 (from kernel.org)

Irda (FIR) device is identified as NSC Vishay TFDS-6500. Resources have
been identified from windows hardware manager: base 0x2F8, irq 3, dma 1.

After first catching the Oops with a 'homemade' kernel (suspend2, ...),
I compiled the same version without any patches.

Oops:

acer01:~# ircp -r
Waiting for incoming connection
srv_obex_event(): Link error
Speicherzugriffsfehler

Message from syslogd@...alhost at Wed Oct 25 23:09:48 2006 ...

localhost kernel: Oops: 0000 [#2]
localhost kernel: PREEMPT
localhost kernel: CPU:    0
localhost kernel: EIP is at 0x200202
localhost kernel: eax: f0a1de1c   ebx: c02001ea   ecx: 00000000   edx:
f0a1de28
localhost kernel: esi: 00000000   edi: f1bf681c   ebp: f0a1df00   esp:
f0a1ded8
localhost kernel: ds: 007b   es: 007b   ss: 0068
localhost kernel: Process ircp (pid: 12450, ti=f0a1c000 task=f55ee560
task.ti=f0a1c000)
localhost kernel: Stack: c01121b4 f0a1de1c 00000001 00000000 00000000
00000001 f1213e18 f0a1c000
localhost kernel:        00000000 00200246 f0a1df1c c01134ef 00000000
00000000 f68e3c00 f1213e00
localhost kernel:        f1213e24 ee21f9cc c0231c44 00000000 f98921cc
f68e3c00 f98a8e00 f1213e00
localhost kernel: Call Trace:
localhost kernel: Code:  Bad EIP value.
localhost kernel: EIP: [<00200202>] 0x200202 SS:ESP 0068:f0a1ded8


/var/log/messages:

Oct 25 23:09:48 localhost kernel: 00200202
Oct 25 23:09:48 localhost kernel: Modules linked in: af_packet
binfmt_misc rfcomm l2cap bluetooth nfs lockd nfs_acl sunrpc thermal fan
button sbs i2c_ec autofs4 snd_intel8x0m dm_mirror ipw2200 b44 mii
ieee80211_crypt_tkip ieee80211_crypt_ccmp ieee80211_crypt_wep ieee80211
ieee80211_crypt cpufreq_conservative cpufreq_ondemand
cpufreq_performance cpufreq_powersave acpi_cpufreq freq_table processor
sg scsi_mod snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss usbhid
snd_mixer_oss pcmcia snd_pcm snd_seq_dummy snd_seq_oss firmware_class
snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer
snd_seq_device joydev snd nsc_ircc uhci_hcd ehci_hcd pcspkr intel_agp
soundcore yenta_socket rtc i2c_i801 evdev agpgart snd_page_alloc
ohci1394 ieee1394 rsrc_nonstatic pcmcia_core ide_cd usbcore irda cdrom
psmouse crc_ccitt unix
Oct 25 23:09:48 localhost kernel: EIP:    0060:[<00200202>]    Not
tainted VLI
Oct 25 23:09:48 localhost kernel: EFLAGS: 00210083   (2.6.18-vanilla #3)
Oct 25 23:09:48 localhost kernel:  [<c01121b4>] __wake_up_common+0x2a/0x4a
Oct 25 23:09:48 localhost kernel:  [<c01134ef>] __wake_up+0x1f/0x48
Oct 25 23:09:48 localhost kernel:  [<c0231c44>] sock_def_wakeup+0x27/0x3f
Oct 25 23:09:48 localhost kernel:  [<f98921cc>] irda_release+0x4a/0x153
[irda]
Oct 25 23:09:48 localhost kernel:  [<c022f577>] sock_release+0x14/0xa4
Oct 25 23:09:48 localhost kernel:  [<c022f890>] sock_close+0x2c/0x33
Oct 25 23:09:48 localhost kernel:  [<c014aea9>] __fput+0x84/0x152
Oct 25 23:09:48 localhost kernel:  [<c0148a11>] filp_close+0x50/0x59
Oct 25 23:09:48 localhost kernel:  [<c0149c4c>] sys_close+0x6f/0x9b
Oct 25 23:09:48 localhost kernel:  [<c0102be9>] sysenter_past_esp+0x56/0x79
Oct 25 23:09:48 localhost kernel:  <6>note: ircp[12450] exited with
preempt_count 2


I tried to debug the Oops with 'echo 4 > /proc/sys/net/irda/debug'
previous to 'ircp -r'. After the Oops I've stopped the debug output with
'echo 0 > /proc/sys/net/irda/debug'. Then I've extraced the sequence
from /var/log/kern.log

See: http://www.uni-koeln.de/~a0537/irda_debug.log


Additional informations:

/etc/modprobe.d/irda-utils.local

alias irda0 nsc-ircc
options nsc-ircc dongle_id=0x09 io=0x2f8 irq=3 dma=1
install nsc-ircc /bin/setserial /dev/ttyS0 uart none port 0 irq 0; \
/sbin/modprobe --ignore-install nsc-ircc


/etc/default/irda-utils

ENABLE=""
DISCOVERY="true"
DEVICE="irda0"
DONGLE="none"


/var/log/messages during boot

...
Oct 25 20:37:58 localhost kernel: nsc-ircc, chip->init
Oct 25 20:37:58 localhost kernel: nsc-ircc, Found chip at base=0x164e
Oct 25 20:37:58 localhost kernel: nsc-ircc, driver loaded (Dag Brattli)
Oct 25 20:37:58 localhost kernel: IrDA: Registered device irda0
Oct 25 20:37:58 localhost kernel: nsc-ircc, Using dongle: IBM31T1100 or
Temic TFDS6000/TFDS6500
...
Oct 25 20:38:14 localhost irattach: executing: '/sbin/modprobe irda0'
Oct 25 20:38:14 localhost irattach: executing: 'echo acer01 >
/proc/sys/net/irda/devname'
Oct 25 20:38:14 localhost irattach: executing: 'echo 1 >
/proc/sys/net/irda/discovery'
Oct 25 20:38:14 localhost irattach: Starting device irda0


/var/log/dmesg during boot

...
nsc_ircc_pnp_probe() : From PnP, found firbase 0x2F8 ; irq 3 ; dma 1.
nsc-ircc, chip->init
nsc-ircc, Found chip at base=0x164e
nsc-ircc, driver loaded (Dag Brattli)
IrDA: Registered device irda0
nsc-ircc, Using dongle: IBM31T1100 or Temic TFDS6000/TFDS6500


Regards,

Berthold Cogel



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