5.2 RC2: Semi-deterministic gcc segfault during buildworld

[Peter Schuller]

Hello,

I had just installed a fresh 5.2 RC2 system and cvsup:ed the latest source 
(only 5-10 files changed; nothing related to this problem as far as I could 
see). I wanted to add Coda client support. so I created a GENERIC derivative 
configuration with Coda support added. I proceeded to compile as usual:

   make cleandir && make cleandir && make buildkernel KERNCONF=WHITESTAR

However every time I do this I encounter the exact same problem:

/usr/src/sys/dev/aic7xxx/aic79xx.c: In function `ahd_handle_scsiint':
/usr/src/sys/dev/aic7xxx/aic79xx.c:1719: internal compiler error: Segmentation 
fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
*** Error code 1

Except for once when I got this instead:

/usr/src/sys/pci/if_dc.c: In function `dc_init':
/usr/src/sys/pci/if_dc.c:3593: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
*** Error code 1

I've been running some memtests on the machine and so far no problems have 
been reported. Besides I would expect memory related problems to be much more 
random than the above.

The same hardware (minus a new disk) has been running FreeBSD 4.x without 
problems for quite a while before this. I tried booting back into 4.9-RELEASE 
to recompile the kernel - it completed successfully.

I have also tried some rudimentary write/read/md5sum tests on the disk used 
for 5.2 to try to determine if there are random read errors on the drive 
(which has happened to me before on one disk). 

Has anyone seen this? Could it be a hardware problem in spite of the above?

-- 
/ Peter Schuller, InfiDyne Technologies HB

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