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SubjectRe: [sx]quake still segfaults with 2.0.32 and MMX pentium
Interestingly enough, under 2.1.64, my version of squake causes a kernel
oops when you /exit/ the program. It runs perfectly until this time. The
oops doesn't shut down the system. In fact, it doesn't seem to cause any
problems at all. The oops I get:

-----------------------------------
Negative d_count (-1) for dev/dsp
Unable to handle kernel NULL pointer dereference at virtual address
00000000
current->tss.cr3 = 00101000, %cr3 = 00101000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c0135492>]
EFLAGS: 00010282
eax: 00000022 ebx: c0e24e00 ecx: c01c9340 edx: c3c62000
esi: ffffffff edi: 00010000 ebp: c0084ce0 esp: c3647f5c
ds: 0018 es: 0018 ss: 0018
Process squake.real (pid: 1229, process nr: 34, stackpage=c3647000)
Stack: c01af484 ffffffff c009c4a0 c08346a0 c06a6260 408fc000 c011e2d1
c0e24e00
c0084ce0 c0084ce0 fffffffc 00000000 c06a6a20 c01132ed c0084ce0
c3646000
c0118d78 c0084ce0 00000000 ffffffff fffffffc 00000000 c0118f52
00000000
Call Trace: [<c01af484>] [<c011e2d1>] [<c01132ed>] [<c0118d78>]
[<c0118f52>] [<c01096ba>]
Code: c7 05 00 00 00 00 00 00 00 00 83 c4 10 5b 5e c3 89 f6 53 8b
Segmentation fault
--------------------------------------

This is definitely kernel related. It works fine with 2.0.32 and below.
I'm not sure if that dev/dsp means the problem is related to the sound
driver or what...

Speaking of sound drivers, is there anyone working seriously on
kernel sound support? What I'm interested in is full duplex on Creative
cards. I've heard with only one IRQ they can't be actually full duplex
cards... Nevertheless, they have full duplex Win95 drivers, I presume by
toggling between read/write very quickly or another such gimmick.
However, if this can be done under WinDoze, presumably its something that
can be done under Linux. :) It would be nice to be able to do SpeakFreely
without having to toggle CB radio style all the time...

Peter McLachlan

My beautiful! my beautiful!
That standest meekly by
With thy proudly arched and glossy neck,
And dark and fiery eye;

"An Arab's Farewell to his Steed"-Caroline Norton


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