[hsflinux] System hangs using latest hsf drivers...

[Stween]

Downloaded the latest hsf modem drivers
(hsflinmodem-5.03.03.L3mbsibeta02093000.tar.gz) yesterday, hoping for
greater stability with my VIA AC97 (vendorId="1106" deviceId="3068")
built in modem. Indeed, I seem to be able to connect easier, and the
connections seem less prone to being dropped (perhaps just my
imagination), but after a succesful connection, trying to reconnect
later for whatever reason will often bring the system down to a
standstill. I am running kernel version 2.5.34, Slackware 8.1.

Using wvdial (I often use kppp, but switch randomly between the two),
the error messages are visible on the console. Please note, these were
copied by hand, since I had no control over the system once these flew
up the screen, so they may not be 100% accurate. I took them down in
the hope that someone knows what they mean  :)  It looks to me like
it's the modem drivers that cause the system to hang, so I'd rather not
bug kernel developers with this one...

------- Last lines of output --------
--> Modem Initialised
--> Sending ATDT...
--> Waiting for carrier
kernel BUG at buffer.c:1296!
Invalid operand : 0000
CPU: 0
EIP: 0060:[<c01352b9>] Tainted:P
EFLAGS: 00010002
eax: 00000001  ebx: 00058005  ecx: 0000000c  edx: 00000000
esi: 00001000  edi: 00001000  edp: 00058005  esp: cb341ce4
ds: 0068  es: 0068  ss: 0068
Process cnxthsf_mdmthrd (pid:125, threadinfo = cb340000 task =
cdd1d1c0)
Stack : 00058005 00001000 00058005 c13380c0 c0135359 c13380c0 00058005
00001000
        00058005 00001000 00058005 c13380c0 c0135398 c13380c0 00058005
00001000
        00058005 00000160 00001180 0000000b c015b976 c13380c0 00058005
00001000
Call Trace: [<c0135358>] [<c0135398>] [<c015b976>] [<c015c290>]
[<c015dbfc>]
  [<c01611df>] [<c015c0f7>] [<c0146766>] [<c013187a>] [<c013d7b0>]
[<c013da6f>]
  [<d107dd2f>] [<c01326eb>] [<d107dd2f>] [<d107dd38>] [<d107ba76>]
[<d107dd2f>]
  [<d107cc54>] [<d107efca>] [<d107bde2>] [<d107dd2f>] [<d107dd2d>]
[<d107cfca>]
  [<d107cc35>] [<d107bfe0>] [<d1085371>] [<d115513d>] [<d107c7ec>]
[<c011095c>]
  [<d0117dbc>] [<d107c988>] [<d107f340>] [<d107c9a7>] [<d107c8d0>]
[<c01055b9>]
  [<d107f364>]
Code: 0f 0b 10 05 b0 52 29 c0 be 40 1a 36 c0 31 c0 8b 1c 86 85 db
  ATDT...
---------------

I have omitted telephone numbers, because that's about the only part
that I can eliminate from the above that I understand properly  :)  I'd
have tried a newer version of the 2.5.x tree had I been able to reach
kernel.org before now, since buffer.c must be a kernel file, not one of
the files used for the modem drivers (that said, a quick search under
the kernel tree reveals buffer.c files only in the 'usb' and 'fs'
sections, so I'm just confused...)

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