From: Eric Rudd <rudd AT cyberoptics DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: RMCB crash during compilation
Date: 3 Mar 1997 15:11:47 GMT
Organization: CyberOptics Corp
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Message-ID: <5fepnj$lhq@hagar.cyberoptics.com>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

I am running DJGPP v2.01 on a Pentium 90 computer with 32 MB of RAM, IBM
PC-DOS 6.30, HIMEM.SYS, the Norton Cache, v6.01, but no EMM386, QEMM, or
Windows.

Every few days, the compiler crashes for no apparent reason.  The last
time it crashed I transcribed the dump:

General Protection Fault in RMCB at eip=00000e45; flags=12
eax=20 ebx=00000000 ecx=00000008 edx=00000000 esi=0001c69e edi=d80000c1
ebp=00000000 esp=00003690 cs=18 ds=38 es=33 fs=0 gs=0 ss=20 error=0
General Protection Fault in RMCB at eip=0000400a; flags=12
eax=20 ebx=00000000 ecx=15 edx=00000000 esi=000020d4 edi=d80000c1
ebp=00000000 esp=0000213e cs=2b ds=33 es=33 fs=0 gs=0 ss=33 error=0
General Protection Fault in RMCB at eip=0000400a; flags=12
eax=20 ebx=00000000 ecx=15 edx=00000000 esi=000020d4 edi=d80000c1
ebp=00000000 esp=0000213e cs=2b ds=33 es=33 fs=0 gs=0 ss=33 error=0

The keyboard locks up, necessitating a hard boot, but the cache continues
to commit after the dump, and I have never observed any more serious
damage to the hard drive contents besides an occasional lost cluster.  I
have never observed this type of crash for any of my own apps compiled
under DJGPP.

Does anyone have any idea what causes this problem?  I have not been able
to identify any cause, because of the infrequency of the problem, but I
suspect that typing ahead during the compilation may have something to do
with it.  The problem seems to have nothing to do with the size or type of
file I am compiling.

There was some newgroup discussion about this problem last fall that I
didn't understand very well -- something about not unhooking interrupt
handlers -- but the compiler itself is crashing, not my program, so I'm at
a loss as to what to do.

-Eric Rudd
rudd AT cyberoptics DOT com