10 More Discussions You Might Find Interesting
1. HP-UX
Hi Experts,
I have configured HP-UX Service Guard cluster and it dumps crash every time i reboot a cluster node. Can anyone please help me to prevent these unnecessary crash dumps at the time of rebooting SG cluster node?
Thanks in advance.
Vaishey (2 Replies)
Discussion started by: Vaishey
2 Replies
2. Solaris
Hello Guys,
I need a little help here. I have been studying crash dump and per what I am reading, you can dedicate a slice to use as a dump device. Now when you dedicate this slice, do you have to :
1) create a mount point?
2) add entry in /etc/vfstab?
3) is this slice wu or wm?
4) should... (3 Replies)
Discussion started by: cjashu
3 Replies
3. Solaris
Hi gurus,
I will be glad if anyone can help me with this:
How do you copy a crash dump file to send to your support provider?
Thanks lots guys. (1 Reply)
Discussion started by: cjashu
1 Replies
4. Solaris
Hi,
I'm running Solaris 10 with a zone called "testzone"
If I do a "reboot -d" on the host, as expected the kernet panics, reboots and creates a crash dump file in /var/crash
However no crash file is created in testzone.
My question is how can I tell if a zone crashs or shuts down... (4 Replies)
Discussion started by: fastexit
4 Replies
5. UNIX for Dummies Questions & Answers
Can anybody let me know the steps how can I produce a crash dump and then analyze it? (4 Replies)
Discussion started by: rupeshkp728
4 Replies
6. Solaris
My sparc solaris 8 server crashed/rebooted yesterday and I have the vmcore files. I have some initial output from SCAT and ACT. I have not included all but any info would be helpful. I can supply more output if necessary.
Thanks you.
Can I have any information about this ACT and SCAT... (2 Replies)
Discussion started by: csgonan
2 Replies
7. Solaris
hi ,
i have machine that is crashed
how i can enable core dump file & how can i find it ? :confused: (4 Replies)
Discussion started by: lid-j-one
4 Replies
8. Linux
Is it true that you can't have the crash dump server/client on the same server?
I know I've installed Nagios open source before, I though it's only for that kind of thing. I never though that Red hat ent 4 would be like client/server on the crash dump.
if someone is having problem with high... (0 Replies)
Discussion started by: itik
0 Replies
9. Solaris
Can anyone of you help me in enabling crash dump on Solaris 5.5.1 (1 Reply)
Discussion started by: csreenivas
1 Replies
10. HP-UX
hi friends,
i know that when there is a crash then that memory image is
put into /var/adm/crash
but if the system hangs up and if i have access to console of
that machine then how can i take the crash dump manully.
thanks (2 Replies)
Discussion started by: mxms755
2 Replies
expand_dump(8) System Manager's Manual expand_dump(8)
NAME
expand_dump - Produces a non-compressed kernel crash dump file
SYNOPSIS
/usr/sbin/expand_dump input-file output-file
DESCRIPTION
By default, kernel crash dump files (vmzcore.#) are compressed during the crash dump. Compressed core files can be examined by the latest
versions of debugging tools that have been recompiled to support compressed crash dump files. However, not all debugging tools may be
upgraded on a given system, or you may want to examine a crash dump from a remote system using an older version of a tool. The expand_dump
utility produces a file that can be read by tools that have not been upgraded to support compressed crash dump files. This non-compressed
version can also be read by any upgraded tool.
This utility can only be used with compressed crash dump files, and does not support any other form of compressed file. You cannot use
other decompression tools such as compress, gzip, or zip on a compressed crash dump file.
Note that the non-compressed file will require significantly more disk storage space as it is possible to achieve compression ratios of up
to 60:1. Check the available disk space before running expand_dump and estimate the size of the non-compressed file as follows: Run tests
by halting your system and forcing a crash as described in the Kernel Debugging manual. Use an upgraded debugger to determine the value of
the variable dumpsize. Multiply this vale by the 8Kb page size to approximate the required disk space of the non-compressed crash-dump.
Run expand_dump and pipe the output file to /dev/null, noting the size of the file that is printed when expand_dump completes its task.
RETURN VALUES
Successful completion of the decompression. The user did not supply the correct number of command line arguments. The input file could
not be read. The input file is not a compressed dump, or is corrupted. The output file could not be created or opened for writing and
truncated. There was some problem writing to the output file (probably a full disk). The input file is not formated consistantly. It is
probably corrupted. The input file could not be correctly decompressed. It is probably corrupted.
EXAMPLES
expand_dump vmzcore.4 vmcore.4
SEE ALSO
Commands: dbx(1), kdbx(8), ladebug(1), savecore(8)
Kernel Debugging
System Administration
expand_dump(8)