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тАО06-27-2008 05:48 PM
тАО06-27-2008 05:48 PM
kernel panic
from the /var/log/messages we get:
Jun 25 08:28:06 hostname1 kernel: st1: Error with sense data: Current st1: sense key Not Ready
Jun 25 08:28:06 hostname1 kernel: Additional sense: Medium not present
Jun 25 09:26:27 hostname1 kernel: st1: Block limits 1 - 16777215 bytes.
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тАО06-27-2008 10:56 PM
тАО06-27-2008 10:56 PM
Re: kernel panic
At 09:26, the drive notifies the system for acceptable block size limits (for the current drive + media combination?). This message is not an error, just information.
Maybe someone has inserted a tape into the drive and is now starting a system backup?
Nothing here indicates any cause for a kernel panic.
A wild guess: does the kernel panic happen whenever you're taking backups?
If so, are you backing up the /proc filesystem?
/proc is a virtual filesystem which contains process information and kernel tunables. All the information in it is generated dynamically, so there is no reason to back it up. With some kernel versions, trying to back up /proc is known to cause kernel panics.
You should always exclude /proc from your backups. If you're using a 2.6 series kernel, you should exclude /sys too: it's another virtual filesystem.
MK
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тАО06-28-2008 10:08 PM
тАО06-28-2008 10:08 PM
Re: kernel panic
This kernel panic indicates a hardware problem of some sort.
Due to the tape drive being the trigger, check the scsi card, connectors cables and scsi ID setup for problems.
Test the hardware, perhaps with the vendor. If the tape drive is bad it could trigger this kind of problem.
SEP
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тАО09-15-2008 02:44 AM
тАО09-15-2008 02:44 AM
Re: kernel panic
To escape from a kernel panic and get your machine to reboot automagically, add this into /etc/sysctl.conf
kernel.panic = 7 (after a 7 sec delay, kernel reboots)
Make sysctl re-read this by sysctl -p /etc/sysctl.conf
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тАО09-15-2008 07:22 PM
тАО09-15-2008 07:22 PM
Re: kernel panic
This is related to Tape drive, yes it may be hardware connection error.
Please check the stape status in Kernal, that shoud be static (Current value and Next Value).
Regards,
Gokul Chandola