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Subject2.4.0-test11 + ALSA 0.6pre1 version is OOPSing

After upgrade to 2.4.0-test11 my copy of ALSA 0.6pre1 (cvs version) stopped
working (causing OOPS on module load of snd-card-sbawe). I reverted back to
2.4.0-test10 and verified that the problem does not exist in that version.

I'm running an SMP kernel in case that matters. Similar problem was also
reported by another ALSA user (might be irrelevant, but he's also using
SMP). Problem exists after fresh rebuild of both linux and ALSA, and is
reproducable between reboots.

The (source) code at which the OOPS occurs looks sane.

Could any of the changes between 2.4.0-test10 and 2.4.0-test11 cause this
behaviour???

Thanks,
Frank.




I'm using kernel 2.4.0-test11, and the 20 nov 2000, 23:15 cvs version.

Unable to handle kernel NULL pointer dereference at virtual address 00000000
c885d054
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c885d054>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: 00000000 ebx: 00000020 ecx: c0237fa0 edx: c105a114
esi: 00000008 edi: 00000000 ebp: c885e944 esp: c7b09ef4
ds: 0018 es: 0018 ss: 0018
Process modprobe (pid: 109, stackpage=c7b09000)
Stack: c885dc18 c885e79c c885da9c ffffffff 00000299 c885d000 c885db90 00000007
c011c2fd c7b08000 00000000 00000000 bfffdf90 00000007 c882a000 c882a000
c7b08000 00000054 c7b09f60 c885e8e8 c1531000 000017b0 0000000e c1532000
Call Trace: [<c885dc18>] [<c885e79c>] [<c885da9c>] [<c885d000>] [<c885db90>] [<c011c2fd>] [<c882a000>]
[<c882a000>] [<c885e8e8>] [<c885a000>] [<c885d060>] [<c010a723>]
Code: 00 00 00 00 00 00 00 00 00 00 00 00 8b 7c 24 14 74 1a 89 f6

>>EIP; c885d054 <[snd-card-sbawe]snd_legacy_auto_probe+0/34> <=====
Trace; c885dc18 <[snd-card-sbawe]alsa_card_sb16_init+88/fc>
Trace; c885e79c <[snd-card-sbawe]possible_ports.5+0/13>
Trace; c885da9c <[snd-card-sbawe]snd_sb16_probe_legacy_port+0/80>
Trace; c885d000 <[snd-sb16-dsp]__kstrtab_snd_sb16dsp_interrupt+16fa/174e>
Trace; c885db90 <[snd-card-sbawe]init_module+0/0>
Trace; c011c2fd <sys_init_module+5b5/69c>
Trace; c882a000 <[soundcore]__kstrtab_mod_firmware_load+10a6/10fa>
Trace; c882a000 <[soundcore]__kstrtab_mod_firmware_load+10a6/10fa>
Trace; c885e8e8 <[snd-card-sbawe]__module_description+14/4b3>
Trace; c885a000 <[snd-pcm]__kstrtab_snd_pcm_lib_fragment_bytes+1730/1784>
Trace; c885d060 <[snd-card-sbawe]snd_legacy_auto_probe+c/34>
Trace; c010a723 <system_call+33/38>
Code; c885d054 <[snd-card-sbawe]snd_legacy_auto_probe+0/34> <=====
00000000 <_EIP>: <=====
Code; c885d060 <[snd-card-sbawe]snd_legacy_auto_probe+c/34>
c: 8b 7c 24 14 mov 0x14(%esp,1),%edi
Code; c885d064 <[snd-card-sbawe]snd_legacy_auto_probe+10/34>
10: 74 1a je 2c <_EIP+0x2c> c885d080 <[snd-card-sbawe]snd_legacy_auto_probe+2c/34>
Code; c885d066 <[snd-card-sbawe]snd_legacy_auto_probe+12/34>
12: 89 f6 mov %esi,%esi


[root@idefix /root]# cat /proc/modules
binfmt_misc 3688 0
nfs 53056 1 (autoclean)
nfsd 46536 8 (autoclean)
lockd 38856 1 (autoclean) [nfs nfsd]
sunrpc 62104 1 (autoclean) [nfs nfsd lockd]
de4x5 42644 1 (autoclean)
serial 43556 0 (autoclean)
agpgart 14468 0 (unused)
st 27624 0 (unused)
nls_iso8859-1 2840 4 (autoclean)
nls_cp437 4352 4 (autoclean)
vfat 11596 4 (autoclean)
fat 32216 0 (autoclean) [vfat]
snd-card-sbawe 6460 (initializing)
snd-sb16-dsp 6428 0 [snd-card-sbawe]
snd-pcm 34168 0 [snd-sb16-dsp]
snd-sb16-csp 16248 0 [snd-card-sbawe]
snd-sb-common 7308 0 [snd-card-sbawe snd-sb16-dsp snd-sb16-csp]
snd-opl3 6496 0 [snd-card-sbawe]
snd-hwdep 3852 0 [snd-sb16-csp snd-opl3]
snd-timer 9816 0 [snd-pcm snd-opl3]
snd-emu8000 11268 0 [snd-card-sbawe]
snd-mpu401-uart 3416 0 [snd-card-sbawe snd-sb16-dsp]
snd-rawmidi 10584 0 [snd-mpu401-uart]
snd-seq-device 4336 0 [snd-opl3 snd-emu8000 snd-rawmidi]
snd 28376 0 [snd-card-sbawe snd-sb16-dsp snd-pcm
snd-sb16-csp snd-sb-common snd-opl3 snd-hwdep snd-timer snd-emu8000
snd-mpu401-uart snd-rawmidi snd-seq-device]
soundcore 3812 0 [snd]
usb-uhci 23404 0 (unused)
usbcore 53056 1 [usb-uhci]


--
+---- --- -- - - - -
|Frank van de Pol -o)
| FvdPol@home.nl /\\
| _\_v
|Linux - Why use Windows, since there is a door?
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