9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Can any body provide me some good link to learn to create and analyze linux user mode application / kernel module core dumps? (1 Reply)
Discussion started by: rupeshkp728
1 Replies
2. Red Hat
We have just enabled core dump on our RHEL5.7 OS. the java process is terminating very often so we enable core dump to analysis the issue and find below in core dump file.
Core was generated by `/usr/java/jdk1.6.0_06//bin/java -server -Xms1536m -Xmx1536m -Xmn576m -XX:+Aggre'.
Program... (0 Replies)
Discussion started by: pawankkamboj
0 Replies
3. Red Hat
Hello
I have been asked to provide a security patch analysis of servers in my environment. For HPUX and Solaris there are tools wich can be loaded onto the servers to do this. However I do not know of one for Redhat . At this point I must mentioned that the Redhat servers are behind a firewall... (2 Replies)
Discussion started by: dmsmith32
2 Replies
4. Solaris
How can we analyze a core file and determine why it was generated on a solaris system?
I know file core filename will tell us what program generated the file. But, what to do next to get more details?
Thanks, (5 Replies)
Discussion started by: Pouchie1
5 Replies
5. AIX
Please tell me some methods to analyse core dump in AIX.:) (2 Replies)
Discussion started by: Mythili
2 Replies
6. UNIX for Advanced & Expert Users
Hello,
I'm new to the group and this is my first post. I'm hoping someone can help me out. I have a core dump that I need to analyze from a Unix box and I've never done this sort of thing before. I was told to run a pmap and pstack on the core file which provided two different output files. ... (3 Replies)
Discussion started by: kimblebee
3 Replies
7. Solaris
Does anyone know where I can download this software from , or is it part of a software package that has to be bought.
Thanks (0 Replies)
Discussion started by: markdr011
0 Replies
8. UNIX for Advanced & Expert Users
Hi All,
I am new to unix environment.
Please tell me how to do coredump analysis. Please explain clearly with example. What are the details are available in the core.
Thanks in advance (5 Replies)
Discussion started by: sip
5 Replies
9. UNIX for Dummies Questions & Answers
Hi folks,
I'm hoping someone would be charitable enough to give me a quick explanation of adb usage for analyzing core files...or point me in the right direction. A search here revealed scant results and web searches are providing me with ambiguous information.
Running Solaris.
Thanks,... (1 Reply)
Discussion started by: kristy
1 Replies
SAVECORE(8) System Manager's Manual SAVECORE(8)
NAME
savecore - save a core dump of the operating system
SYNOPSIS
savecore dirname [ system ]
DESCRIPTION
Savecore is meant to be called at the end of the /etc/rc file. Its function is to save the core dump of the system (if one was made) and
to write a reboot message in the shutdown log.
It saves the core image in the file dirname/core.n and its corresponding namelist in dirname/unix.n. The second argument is the namelist
for the system which made the core image; the current system is always assumed to be /unix. The trailing ".n" in the pathnames is replaced
by a number which grows every time savecore is run in that directory.
Before savecore writes out a core image, it reads a number from the file dirname/minfree. If there are fewer free blocks on the file sys-
tem which contains dirname than the number obtained from the minfree file, the core dump is not done. If the minfree file does not exist,
savecore always writes out the core file (assuming that a core dump was taken).
Savecore also writes a reboot message in the shut down log. If the system crashed as a result of a panic, savecore records the panic
string in the shut down log too.
If savecore detects that the system time is wrong because of a crash (the time in the core image is after the current time), it will reset
the system time to its best estimate of the time, which is the time in the core image plus the elapsed time since the reboot. It announces
the time that it set when this occurs.
FILES
/usr/adm/shutdownlogshutdown log
/unix current UNIX
BUGS
The method used to determine whether a dump is present, and to prevent the same core image from being saved multiple times, is not elegant.
This information should be passed to init by the system; however, this is difficult because the system may have to be rebooted a second
time if the root filesystem is patched.
3rd Berkeley Distribution SAVECORE(8)