What is system panic?


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Operating Systems Solaris What is system panic?
# 1  
What is system panic?

Hello experts..

What is system panic? If a system is in that state.. what will happen?

Why is it goes to panic condition?

Just give me information about Panic condition.. How can i resolve this issue..?

If you know any links(URL) or Books...? replay me back....



Thanks in advance....
# 2  
Hi,
first of all the course of system panic can nearly "everything".
SW Error : CPU outage :defect memory: problems with disksuite(mirroring) etc.

....Homework???...

If you try to find the error please post first the /var/adm/messages.
prtdiag -v is also one of the first points.
An log of the console?

If you are able to post this I am able to support you.

If not (system is not able to start with OS?) you can try several OBP commands

Br Joerg
# 3  
Thanks man..
You have given me good information...

What is software error and what is hardware error in "iostat" command output..?

I have got two hard disks. One hard disk contains bad sectors.. I have implemented root mirror on that machine.. It has shown some messages on console and when i used "metastat" command it shown that "needs maintenance" state for one submirror.. Was it panic condition regarding disk operation?

Any documentation about that errors (panic )? Just send me a link...


Thanks a lot...Smilie

Last edited by younus_syed; 07-07-2008 at 05:45 PM..
# 4  
# 5  
Thank you very much..

For Disk errors....?
# 6  
s/w errors are not disk errors. If HDD needs replacement, you will know by lookingat the iostat -En output. Hard Errors and Transport Errors can tell you if your disk is gone bad. Soft errors are not critical and the counter can be resetted via a reboot. But hard errors will be incrementing if its really critical
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #79
Difficulty: Easy
GNU/Linux is directly descended from BSD.
True or False?

10 More Discussions You Might Find Interesting

1. OS X (Apple)

MacOS 10.15.2 Catalina display crash and system panic

MacPro (2013) 12-Core, 64GB RAM (today's crash): panic(cpu 2 caller 0xffffff7f8b333ad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds service: com.apple.logd, total successful checkins since load (318824 seconds ago): 31883, last successful... (3 Replies)
Discussion started by: Neo
3 Replies

2. Linux

System Went panic after CPU usage high

Hi All, Yesterday my Linux server went panic and even a small command took a lot of time to run. When i monitored pl find the below output Cpu(s): 0.1%us, 98.4%sy, 0.0%ni, 1.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st the time spent on kernel mode is 98 % and also idle time is around 1.5 %...... (4 Replies)
Discussion started by: jegaraman
4 Replies

3. HP-UX

When MTU changed, system panic occured

Hello I have some hpux 11.23/31 systems ,and some other (linux,solaris) I know if i want change the mtu size ,need use lanadmin. But:if i try on 11.23 : ifconfig lan1 mtu 8000,system paniced. If i try on 11.31 :ifconfig lan1 mtu 8000,remove ip address from interface. Ithink is not a best... (1 Reply)
Discussion started by: zoldkalap
1 Replies

4. Red Hat

comm: mysqld Not tainted ... Kernel Panic , System totally unresponsive

Hi, I am experiencing frequent system hangs, hard kernel panics, etc almost thrice a day. The system would be totally unresponsive and the only way is to reboot is hard power recycling (plug out the power cable and plug in back after 30 secs). I enabled kdump, but unfortunately the kdump files... (3 Replies)
Discussion started by: massoo
3 Replies

5. Solaris

Solaris 10 - Unable to boot the system "panic: cannot open /kernel/amd64/unix"

Hi All, I have installed Solaris 10 on my AMD 64 3000+ system. I was playing with grub commands eeprom and bootadm commands. I screwed my boot-file and now am unable to boot the system. Gets error msg as "panic: cannot open /kernel/amd64/unix". I booted the system is filesafe and tried update the... (2 Replies)
Discussion started by: Manjunath K V
2 Replies

6. AIX

Disabling saving of system dump while kernel panic

Hi, Is there an option to disable saving of system dump when a user invokes a kernel panic using sysdumpstart command. Also, is there any other way of invoking a kernel panic other than using sysdumpstart? Thanks, Kanna (3 Replies)
Discussion started by: kanna_geekworkz
3 Replies

7. HP-UX

Reboot After Panic

Hi all, Does anybody know what kinds of events can prompt the following? I found our test db box had rebooted itself. I'd like to know how I can go about finding our why. Thanks folks... (1 Reply)
Discussion started by: Kozmo
1 Replies

8. SCO

Panic :

Hi Friends , i am getting the following error when iam booting a sco unix system. ------------------ H init PANIC : srmountfun --Error 22 mounting rootdev hd(1/42) cannot dump 40863 pages to dempdev hd(1/41) : space for only 0 pages. Dump not completed. Safe to power off.... (1 Reply)
Discussion started by: sveera
1 Replies

9. UNIX for Advanced & Expert Users

Reboot after Panic

I've got htis message on our sun U60 machine: "Reboot after panic:errID 0x000004eff........." ,this message have been issued on the /var/adm/messages file & cause system rebooting randomly. Any comment. Thanks, --Nikk (1 Reply)
Discussion started by: nikk
1 Replies

10. UNIX for Dummies Questions & Answers

Panic

Hi All, When I came officce this morning I saw this error messages on the screen ----- PANIC:srmountfun - Error 6 mounting rootdev hd (1/42) Cannot dump 32639 pages to dumpdev hd (1/41) : space for only 0 pages Dump not completed -------- and machine was reboot mode. Why this problem... (3 Replies)
Discussion started by: alisev
3 Replies

Featured Tech Videos