Are you up to date on the RedHat Kernel? I seem to recall there being a
kernel bug in RedHat 7.3 for ext3 filesystems that was resolved with an
updated kernel ~2 years ago.
Andrew
Cristian Stanca wrote:
Hello,
We've got a hard disk failure (bad blocks - reported the
array controller
bios) on a scsi hard-disk on an INTEL platform (running
Fedora Core 2 Linux operating system). What is interesting is
that this hard-disk failure occurred after a "I don't know
what it is... let's reboot it and see after that" situation.
Situation describe by many "segmentation fault" when using
typical application like vi or service or even grub-install.
Grub did not start again after that (we tried to reinstall it
with an Install CD 1 from Fedora and grub-install did said
"segmentation fault" again)
We did recover the data on that scsi hard-drive by mounting
it on another machine.
So far so good (sort of)
After a week or so, another Linux server, began to show the
same errors while giving shell commands and also sshd
listened on port 22 we cannot do a ssh on it. We did not make
the connection to the previous case (as we thought was a
possible hardware failure), reboot it and grub did not start.
We boot again with an install CD from redhat 7.3 (as we had
redhat 7.3 installed on that hard-disk, and thought if any
files are missing...), the hard-disk was recognized by
controller (again scsi hard-disk), fdisk view the partitions,
and cannot this time mount them. (As I write this the "much
more important data that hardware" hard-disk is at a computer
service, for data recovery.
Again, on a third Linux server (redhat 7.3) we got some
messages at the primary console (kernel BUG commit.c #some
number, lots of stack text and hexa symbols...) and again
can't do ssh on it (it responds to ping and traceroute,
telnet ip_address port 22 works...). We are kind of worried
regarding the reboot of this machine...
Could that be a worm, exploit or something, or looks like a
human intervention situation?!
In the mean time, we are working at a firewall and password policies.
