10-28-2011
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi
I faced a problem while booting linux which is as follows;-
*************************************************
Inode 146180 has illegal block(s)
xauth:error in locking authority file /home/root/.Xauthority
Fatal Server Error:
Could not create lock file in /tmp/tXo-lock
... (1 Reply)
Discussion started by: Abhishek
1 Replies
2. UNIX for Dummies Questions & Answers
Our SUn Solaris Server has crashed second time in 2 days, reason is not known , we are trying to determine what could have gone wrong, any ideas, the power supply seems to be fine, there is no response from keyboard,monitor etc and we had to do a hot boot yesterday..
Any suggestions what could be... (9 Replies)
Discussion started by: knarayan
9 Replies
3. UNIX for Advanced & Expert Users
We have had a server (Solaris 2.6) hardisk crash. When booting the server we get:
ok> boot -S
Boot Device: /sbus/espdmc@e, 8400000/esp@e,8800000/sd@0,0
short read 0x2000 chars read
disk read error
The only way we can get into the console is to
ok> boot cdrom
whereby everything (e.g.... (3 Replies)
Discussion started by: Breen
3 Replies
4. 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
5. Programming
Problem
- Linux Client/Server Socket Application: Preventing Client from quitting on server crash
Hi,
I am writing a Linux socket Server and Client using TCP protocol on Ubuntu 9.04 x64.
I am having problem trying to implement a scenario where the client should keep running even when the... (2 Replies)
Discussion started by: varun.nagpaal
2 Replies
6. SCO
Hi there.
Well i have a really bad problem with my server:
UnixWare Version 5 Release 7
The system crash :wall: and show the error:
Panic: Kernel-mode address fault on user address 0x00000004 :eek:
If anyone knows about the reason of this error please give me a help
Sorry by my english.... (3 Replies)
Discussion started by: danilosevilla
3 Replies
7. Programming
The steps to test the problem
1. Open TCP Server
2. Open TCP Client
3. TCP Client sends data to Server.
4. Close TCP Server and the client also crash without any notification
Second wonderful test:
1. Comment the following statement in Client.c (at line 168) and compile it
Writen(... (1 Reply)
Discussion started by: sehang
1 Replies
8. 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
9. Homework & Coursework Questions
Hi my name is Manju.
->I have configure the two way authentication on my linux server.
->Now I am able to apply two way authenticator on particuler user.
->Now I want to map this linux server to my AD server.
->Kindly tell me how to map AD(Active Directory) with this linux server.
... (2 Replies)
Discussion started by: manjusharma128
2 Replies
10. Linux
Hi my name is Manju.
->I have configure the two way authentication on my linux server.
->Now I am able to apply two way authenticator on particuler user.
->Now I want to map this linux server to my AD server.
->Kindly tell me how to map AD(Active Directory) with this linux server.
... (0 Replies)
Discussion started by: manjusharma128
0 Replies
LEARN ABOUT FREEBSD
dumpon
DUMPON(8) BSD System Manager's Manual DUMPON(8)
NAME
dumpon -- specify a device for crash dumps
SYNOPSIS
dumpon [-v] special_file
dumpon [-v] off
dumpon [-v] -l
DESCRIPTION
The dumpon utility is used to specify a device where the kernel can save a crash dump in the case of a panic.
Calls to dumpon normally occur from the system multi-user initialization file /etc/rc, controlled by the ``dumpdev'' variable in the boot
time configuration file /etc/rc.conf.
The default type of kernel crash dump is the mini crash dump. Mini crash dumps hold only memory pages in use by the kernel. Alternatively,
full memory dumps can be enabled by setting the debug.minidump sysctl(8) variable to 0.
For systems using full memory dumps, the size of the specified dump device must be at least the size of physical memory. Even though an
additional 64 kB header is added to the dump, the BIOS for a platform typically holds back some memory, so it is not usually necessary to
size the dump device larger than the actual amount of RAM available in the machine. Also, when using full memory dumps, the dumpon utility
will refuse to enable a dump device which is smaller than the total amount of physical memory as reported by the hw.physmem sysctl(8) vari-
able.
The -l flag causes dumpon to print the current dump device or _PATH_DEVNULL ("/dev/null") if no device is configured.
The -v flag causes dumpon to be verbose about its activity.
IMPLEMENTATION NOTES
Since a panic(9) condition may occur in a situation where the kernel cannot trust its internal representation of the state of any given file
system, one of the system swap devices, and not a device containing a file system, should be used as the dump device.
The dumpon utility operates by opening special_file and making a DIOCSKERNELDUMP ioctl(2) request on it to save kernel crash dumps. If
special_file is the text string: ``off'', dumpon performs a DIOCSKERNELDUMP ioctl(2) on /dev/null and thus instructs the kernel not to save
crash dumps.
Since dumpon cannot be used during kernel initialization, the dumpdev variable of loader(8) must be used to enable dumps for system panics
which occur during kernel initialization.
FILES
/dev/{ada,da}?s?b standard swap areas
/etc/rc.conf boot-time system configuration
SEE ALSO
fstab(5), rc.conf(5), config(8), init(8), loader(8), rc(8), savecore(8), swapon(8), panic(9)
HISTORY
The dumpon utility appeared in FreeBSD 2.1.
BUGS
Because the file system layer is already dead by the time a crash dump is taken, it is not possible to send crash dumps directly to a file.
BSD
October 8, 2014 BSD