hp Workstation boot failer - system panic

[Nuwan Wijesundera]

There is a HP Workstation C200 which is running on hpux 10.20, the system was running properly and suddenly the system GUI hanged and the network seemed to be failed, Telnet connection failed from remote machine however the workstation could be pinged from remote.

After some attempts we had to reboot the system manually (using power switch).
After this the system failed to reboot to its proper state,

it gives an error as follows and reboots,
system panic B2352B HPUX (10.20)
panic:(dis.........) data page fault
It was not possible the kernel to find the process that caused the crash.
Dumpsys() called....

Any one to resolve this issue....I have the make_recovery tape, will it help to resolve this issue.

Nuwan

[Elmar P. Kolkman]

Absolutely. It seems to me your bootdisk has broken down on you...
Try to boot from the tape to make sure the workstation is working properly. Then you could try to reinstall the system using the recovery tape after making sure that it has nothing to do with wrong boot parameters. If that fails, you will need to replace the disk and then reinstall.

[Bruno Vidal]

Hi,
Sorry, "data page fault" is not enought to help you, it is a standart panic. But there is something suspicious. I assume that you don't rebuilt your kernel, so the last time this system boot properly, so there is no reason that your kernel is wrong now. I assume also that your LVM strutures are also correct (if kernel wasn't able to find /, it will panic with the message: mount root failed). So there is 2 possibility left: you have an hardware problem with CPU/memory (I've already seen some panic in DPF with a bad CPU that do some bit flip) that don't generate an HPMC, or you have a corruption in your file systems.
Now to have more information, the best to do is booting on your tape recovery, because it will boot on a kernel that is well known. If it boot without panic it probably means that you have a corrupted file system, then leave the recovery running (you can still try to go in recovery shell in order to load all needed tools to fsck all you fs). If it panics, then you have bad hardware somewhere -> call HP in order to run offline diags.

Cheers.

[Stefan Farrelly]

a "data page fault" is usually a simple patch issue - the kernel has crashed due to a bug. Simply update your patches. I think the last 10.20 patch bundle was;

XSW700GR1020 B.10.20.55.3 General Release Patches for HP-UX 10.20 Workstations (December 2001)

You can download from www.software.hp.com.

I would try this first - dont waste your time completely rebuilding it with your ignite tape as you may have the same problem afterwards! install the patches first.

[Nuwan Wijesundera]

thanks for all the replies you made, I'll try the make_recovery tape to recover the system,

the system reboots and load the kernel also.

Thanks

[Joe Colucci_1]

Nuwan,

I experienced this once on a server. The problem was that one of the scsi controllers went bad. The system was completely unresponsive. The only thing I could do was to power it off. When it came back up, the system would panic.

The root disk was mirrored, so I was able to boot with low quorum off of the mirror drive (hpux -lq).

Hope this helps.

--Joe

[RNY]

Hello,
If you have all your data backed up,restart from the tape ,reinstall your system and your data.Because if you will stay troubleshooting you will loose your time and maybe it will not work because it seems there is somelvol corrupted.
regards