[comp.unix.wizards] Problems with vaxuba/dm{f,x}.c and EMULEX CS41

sean@cadre.dsl.PITTSBURGH.EDU (Sean McLinden) (10/07/88)

There appears to be a problem with the Tahoe release
of the DMF driver. In particular, when the device is
an Emulex CS41 dmf look-alike, it autoconfigures OK,
but when the system goes into multiuser mode it crashes
with:

trap type 8, code = 89d55865, pc = 800395f8
Segmentation fault

The same kernel with a DMF32 does fine. Before I break
this apart has anyone seen this or does anyone know
what is the solution. We are working with the latest
Revs of both the CS41 and the UNIBUS.

Thanks.

Sean McLinden
Decision Systems Laboratory

ks@fb10vax.uucp (Kurt Schreiner) (10/10/88)

We have a similar problem with a DMF32 (DEC original) and an EMLUEX CS21.
Configuring both interfaces into the kernel, autoconfig works fine, but
going multiuser the system crashes with "Segmentation fault". Taking
one of the interfaces out of the config file, the system boots and
goes multiuser without any problem. We have had the same behaviour
with the driver we use in 4.3 (labeled "dmf.c 6.1 83/07/29"). At least
the revison of the CS21 board has never been upgraded. The next thing
we'll do is to change the emulation-eproms of the CS21 to emulate a
DH11 and try if this will do with the dmf32. I'll post the results
when it's done.

kurt

ps.: we are still running 4.3 but use the dmf-dmx driver from
     4.3tahoe.

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