I had 32MB of RAM that worked fine in my original P-90 Plato. I
upgraded a couple months ago to a P-100 Triton. All of a sudden
I got gcc failing on signal 11 while compiling the kernel. Turned
off the the cache (internal or external) and it worked fine.
Swapped the pipeline burst cache for async cache and it worked
fine. Swapped my old 32M RAM (70ns) for 60ns EDO and it worked
fine. It seems that there are many solutions to the same problem
here. *note* The motherboard manual explicitly states that I need
to use RAM *faster* than 70ns. Well, the RAM is upgraded and every-
thing work fine now.
I can reproduce an occasional signal 11 with 'make -j zImage'. It
is interesting to note that 9 out of 10 times it will fail with
an "out of virtual memory" at the same place that the signal 11's
occur. This is also where I can, 100% of the time, lock up my system
using Gerard's NCR SCSI driver. There are no error messages when
the lockups occur - no signal 11, no 'out of virtual memory', no
indication of a problem whatsoever, just a solid HD light.
processor : 0
cpu : 586
model : Pentium 75+
vendor_id : GenuineIntel
stepping : 5
fdiv_bug : no
hlt_bug : no
fpu : yes
fpu_exception : yes
cpuid : yes
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips: : 40.03
Intel P-100 Triton MB
256k pipeline burst cache
32MB 60ns EDO
NCR 53c825 PCI Wide SCSI controller
Fujitsu M2915QA-512 2GB-Wide
Iomega Zip
Diamond Stealth 64 DRAM
SoundBlaster 16
Creative Labs CR-563
Teac CD-55
Generic NE2000
Best Data 28.8K Internal Modem
Rob
(rriggs@tesser.com)