Bus error (core dumped) problem

Hy, I'm having a problem on my 5.2.1-RELEASE-p8 workstation:

	My hdd started to freeze before shutdown or on random commands:

# grep error -A 2 -B 2 /var/log/messages
Jun 30 18:50:30 illusion kernel: vmmon: Module vmmon: initialized
Jun 30 18:51:32 illusion kernel: pid 705 (sh), uid 0: exited on signal
10 (core dumped)
Jun 30 18:51:32 illusion fsck: Bus error (core dumped) 
Jun 30 18:52:40 illusion su: bugghy to root on /dev/ttyp0
Jun 30 19:10:06 illusion syslogd: kernel boot file is
/boot/kernel/kernel
--
Jul  1 13:11:54 illusion kernel: vmmon: Module vmmon: initialized
Jul  1 13:24:46 illusion syslogd: kernel boot file is
/boot/kernel/kernel
Jul  1 13:24:46 illusion kernel:
usr/src/gnu/usr.bin/cc/cc_int/rtl-error.o
Jul  1 13:24:46 illusion kernel: WARNING: /home: multilabel flag on fs
but no MAC support
Jul  1 13:24:46 illusion kernel: IPv6 packet filtering initialized,
logging disabled

	After I manually reboot, system enters in single user mode, I fscked
and continued booting but here goes nothing:

# dmesg
cc/cc_int/fibheap.o
WARNING: /home: multilabel flag on fs but no MAC support
IPv6 packet filtering initialized, logging disabled
WARNING: driver "vmmon" used unreserved major device number 200
vmmon: Module vmmon: registered with major=200 minor=0 tag=$Name:
build-570 (3.2.x mvm) $
vmmon: Module vmmon: initialized
pid 949 (sh), uid 1001: exited on signal 11 (core dumped)

(the vmmon driver is needed by vmware3 and I guess unrelated to the 
problem as I've run vmware for over three months with the same driver).

The core files are found here: 

	http://rootshell.be/~bugghy/sh.core.1 
	http://rootshell.be/~bugghy/sh.core.2

Note that I successfully ran this workstation for more than a year
without problems and I didn't install something particularly interesting
lately.

-- 
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- Software is like sex -
-     it's better when -
-          it's free   -
-     Linus Torvalds   -
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