Questions tagged [kdump]
The kdump tag has no usage guidance.
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How to understand kernel crash with vmcore-dmesg.txt and kexec-dmesg.log
I have a server running CentOS 8, the kernel crashed someday and I found the found the following three files in /var/crash: vmcore, vmcore-dmesg.txt, and kexec-dmesg.log.
I first looked at vmcore-...
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kdump not saving to /var/crash on Centos 8.1 server
I am trying to test the kernel dump using echo 1 > /proc/sys/kernel/sysrq ; echo c > /proc/sysrq-trigger command. On some servers, I can get the dump and on some servers I don't see anything. ...
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How to determine what is crashing our systems (CentOS 7) from kdump?
we currently have 3 out of 3 systems running CentOS in the exact same hardware and software configuration but are experiencing random system hangs. The occurrence can happen randomly as short as 20 ...
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why kernel crashdump is not able to dump vmcore?
im using ubuntu 16.04 on esxi-6, the proc/cmdline shows crashkernel is loaded at boottime
BOOT_IMAGE=/boot/vmlinuz-4.15.0-54-generic root=UUID=b12d12f2-cfd9-465d-9b10b12d12f2 ro net.ifnames=0 ...
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change the core-dump location - abrtd configuration
I'm trying to change the Linux core-dump location to a different directory using the abrtd configuration
(normally it is going to the location core,but according to my research, if you enable abrtd, ...
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kdump isnt working on redhat machines
How to force Linux to crash:
we installed the kexec-tools (kdump) on our redhat machines ( version 7.1 )
in order to capture problems by creating core file under /var/crash folder
we check that ...
- 1,081
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Getting console or dmesg contents when unable to login after OS crash
Our server Supermicro SYS-6016T-U often crashes due to https://bugs.centos.org/view.php?id=10642 .
Since it's unable to write to disk, crash info isn't saved. I also cannot login using either IPMI ...
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Why is Linux kdump not writing to /var/crash?
It's happened again! I have 4 servers which are crashing periodically, and there is no information printed to the system logs or the serial console.
In addition, the Linux kdump service isn't writing ...
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Centos kdump hangs up
Trying kdump on CentOS 6.3.
On VMWare everything is fine and on oops crash kernel is loaded and vmcore created.
On phisical machine I see oops message, but crash kernel is not started.
I used ...
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Cannot start kdump
My system always crashes down. So I decided to enable kdump to see the problem since I was not able to see possible errors on the log files.
I followed the steps to set up kdump from a site here. My ...
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Is kdump not installed when /etc/kdump.conf is missing?
I have CentOS 5.8 system. And I want to set up the kdump.
I was following this configuration steps on kdump.
However I was not able to locate /etc/kdump.conf.
I tried using the find and locate command ...
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Performance impact of running kdump
We are currently running into an issue on a RHEL 5.6 server. The server randomly becomes unstable, kernel wait messages are showing up in /var/log/messages, and we've now had it reboot twice. We've ...
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