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    SubjectRe: [sx]quake still segfaults with 2.0.32 and MMX pentium


    On Mon, 24 Nov 1997, Peter McLachlan wrote:

    > 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:


    I got this same problem moving from 2.1.63 to 64. 65 fixed this
    but every now and then the kernel buffs in a bad way and everything starts
    segfaulting in this fastion starting with pppd. I try to shoutdown but
    everything segfaults on shutdown adn the fs has to be checked on boot up.
    I havent had stability problems like this with 2.1.X before 63 is
    it the pent bug work around?
    cheers Adam

    > > -----------------------------------
    > 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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