2.6.0-t1 garbage in /proc/ioports and oops

[Chris Ruvolo <chris+lkml@ruvolo.net>]

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Hi, I am seeing some garbage data in /proc/ioports.  Currently, I can cat
the file without an oops, but on a previous boot, the following oops came
up when catting the file.

Exact output from /proc/ioports is attached (some 8-bit garbage), as well as
lsmod output.  Let me know if further data is needed.

I suspect that this is a problem in one of the drivers I am using, but
how do I track down which one it is (since the name is not there)?

Thanks,
-Chris


  printing eip:
 c01a123a
 Oops: 0000 [#1]
 CPU:    0
 EIP:    0060:[<c01a123a>]    Not tainted
 EFLAGS: 00010297
 EIP is at vsnprintf+0x31a/0x450
 eax: cca060f5   ebx: 0000000a   ecx: cca060f5   edx: fffffffe
 esi: c3e7f10d   edi: 00000000   ebp: c45bdec0   esp: c45bde88
 ds: 007b   es: 007b   ss: 0068
 Process cat (pid: 1661, threadinfo=c45bc000 task=c44a9340)
 Stack: c3e7f106 c3e7ffff 0000038b 00000000 00000010 00000004 00000002 00000001 
        ffffffff ffffffff c3e7ffff c32971e0 00000000 c0241301 c45bdedc c0167426 
        c3e7f101 00000eff c024131a c45bdef8 c76fc580 c45bdf04 c011cf64 c32971e0 
 Call Trace:
  [<c0167426>] seq_printf+0x36/0x60
  [<c011cf64>] do_resource_list+0x64/0xa0
  [<c011cfeb>] ioresources_show+0x4b/0x70
  [<c0166e0f>] seq_read+0xef/0x300
  [<c0149b3a>] vfs_read+0xaa/0x130
  [<c0149def>] sys_read+0x3f/0x60
  [<c010940b>] syscall_call+0x7/0xb
 
 Code: 80 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 83 e7 10 89 c3 75 
  <6>note: cat[1661] exited with preempt_count 1

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1.2: proc-ioports --]
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0000-001f : dma1
0020-0021 : pic1
0040-005f : timer
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
0388-038b : …ÿ¸ÆÆŽÈÇ\x04$ÇƎȺÌÆŽÈ\x0fDÐG‰T$\x04è«ä‚÷‹C\x10¨\x10t+ÇD$\bÎÆŽÈ…ÿ¸ÆÆŽÈÇ\x04$ÇƎȺÌÆŽÈ\x0fDÐG‰T$\x04è|ä‚÷‹C\x10¨\x04t+ÇD$\bÕÆŽÈ…ÿ¸ÆÆŽÈÇ\x04$ÇƎȺÌÆŽÈ\x0fDÐG‰T$\x04èMä‚÷‹C\x10¨\bt+ÇD$\bêÄŽÈ…ÿ¸ÆÆŽÈÇ\x04$ÇƎȺÌÆŽÈ\x0fDÐG‰T$\x04è\x1eä‚÷‹C\x10¨ t'ÇD$\bÙƎȺÌÆŽÈ…ÿÇ\x04$ÇƎȸÆÆŽÈ\x0fDЉT$\x04èðã‚÷Ç\x04$ÝÆŽÈèäã‚÷Ç\x04$äÆŽÈèØã‚÷ƒ½
03c0-03df : vga+
03f6-03f6 : ide0
0cf8-0cff : PCI conf1
4000-403f : Intel Corp. 82371AB/EB/MB PIIX4 
5000-501f : Intel Corp. 82371AB/EB/MB PIIX4 
  5000-5007 : piix4-smbus
d000-dfff : PCI Bus #01
  d000-d0ff : 3Dfx Interactive, In Voodoo 3
e000-e01f : Intel Corp. 82371AB/EB/MB PIIX4 
e400-e4ff : Lite-On Communicatio LNE100TX
  e400-e4ff : tulip
e800-e87f : VIA Technologies, In IEEE 1394 Host Contr
ec00-ec07 : US Robotics/3Com 56K FaxModem Model 5
  ec00-ec07 : serial
f000-f00f : Intel Corp. 82371AB/EB/MB PIIX4 
  f000-f007 : ide0
  f008-f00f : ide1

[-- Attachment #1.3: lsmod --]
[-- Type: text/plain, Size: 2707 bytes --]

Module                  Size  Used by
raw1394                24652  0 
ohci1394               30216  0 
ieee1394               69676  2 raw1394,ohci1394
w83781d                33856  0 
i2c_sensor              2400  1 w83781d
i2c_piix4               5996  0 
i2c_core               20136  3 w83781d,i2c_sensor,i2c_piix4
tdfx                   34248  0 
visor                  15404  0 
usbserial              23940  1 visor
usb_storage            27328  0 
sd_mod                 11104  0 
usbcore                96380  4 visor,usbserial,usb_storage
loop                   13352  0 
sr_mod                 12260  0 
cdrom                  32992  1 sr_mod
ide_scsi               12832  0 
sg                     29720  0 
scsi_mod               94152  5 usb_storage,sd_mod,sr_mod,ide_scsi,sg
rtc                    10388  0 
floppy                 55796  0 
8250_pci                9856  0 
8250                   17008  1 8250_pci
core                   19488  1 8250
lp                      7936  0 
parport_pc             19512  1 
parport                22656  2 lp,parport_pc
unix                   22288  16 
apm                    15300  0 
snd_opl3_lib            9120  0 
snd_sb16_dsp            9952  0 
snd_sb16_csp           19296  0 
snd_sb_common          13408  2 snd_sb16_dsp,snd_sb16_csp
snd_hwdep               6752  2 snd_opl3_lib,snd_sb16_csp
snd_mpu401_uart         5856  0 
snd_pcm                87204  1 snd_sb16_dsp
snd_page_alloc          7780  1 snd_pcm
snd_emux_synth         34784  0 
snd_seq_virmidi         5728  1 snd_emux_synth
snd_rawmidi            19936  2 snd_mpu401_uart,snd_seq_virmidi
snd_seq_midi_event      5760  1 snd_seq_virmidi
snd_seq_midi_emul       6944  1 snd_emux_synth
snd_seq                50800  4 snd_emux_synth,snd_seq_virmidi,snd_seq_midi_event,snd_seq_midi_emul
snd_timer              21220  3 snd_opl3_lib,snd_pcm,snd_seq
snd_seq_device          6120  3 snd_opl3_lib,snd_emux_synth,snd_rawmidi
snd_util_mem            3200  1 snd_emux_synth
snd                    43364  15 snd_opl3_lib,snd_sb16_dsp,snd_sb16_csp,snd_sb_common,snd_hwdep,snd_mpu401_uart,snd_pcm,snd_emux_synth,snd_seq_virmidi,snd_rawmidi,snd_seq_midi_event,snd_seq,snd_timer,snd_seq_device,snd_util_mem
soundcore               6784  1 snd
nls_cp437               5312  0 
nls_iso8859_1           3648  0 
vfat                   12704  0 
msdos                   8672  0 
isofs                  30872  0 
zlib_inflate           21312  1 isofs
fat                    41920  2 vfat,msdos
af_packet              12616  2 
tulip                  36288  0 
crc32                   3808  1 tulip
ipchains               49224  33 

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