linux-2.6.0-test7 pcm_oss bug

[Nikolay Nikolov]

I have posted a bug in pcm_oss in linux-2.6.0-test6 while playing audio file 
with play. There was a patch:
alsa-bk-2003-09-30.patch.gz
I used it and everything was OK. But this patch is not appplied in the 
linux-2.6.0-test7 tree. So the problem is the same. Here is tho Oops:

Unable to handle kernel paging request at virtual address d4971000
printing eip:
d4991e1d
*pde = 01329067
*pte = 00000000
Oops: 0002 [#1]
CPU:    0
EIP:    0060:[<d4991e1d>]    Not tainted
EFLAGS: 00010202
EIP is at snd_pcm_format_set_silence+0x7d/0x1a0 [snd_pcm]
eax: 00000000   ebx: 00001cba   ecx: 00000a5d   edx: 00003974
esi: 00000002   edi: d4971000   ebp: ca84b5c0   esp: c3eedf18
ds: 007b   es: 007b   ss: 0068
Process sox (pid: 1303, threadinfo=c3eec000 task=c5ed9980)
Stack: 00000001 c3eec000 00001cba c6af5800 c12de140 d497a9bc 00000002 
d4970000
      00001cba c413b660 ca84b5c0 ceca9a00 c413b660 d497bbcc ca84b5c0 
c413b660
      cfed4260 cf1149bc cf328f20 c014a17a cf1149bc c413b660 c013f7ba 
cfed7cf0
Call Trace:
[<d497a9bc>] snd_pcm_oss_sync+0x9c/0x140 [snd_pcm_oss]
[<d497bbcc>] snd_pcm_oss_release+0x1c/0x90 [snd_pcm_oss]
[<c014a17a>] __fput+0x3a/0xd0
[<c013f7ba>] unmap_vma_list+0x1a/0x30
[<c0148d9c>] filp_close+0x5c/0x70
[<c0148df5>] sys_close+0x45/0x60
[<c010a7eb>] syscall_call+0x7/0xb

Code: f3 ab f6 c2 02 74 02 66 ab f6 c2 01 74 01 aa e9 05 01 00 00

My motherboard is i810 and I use the onboard sound card.
OS is RH 7.2

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