Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [kernel-panic]

107 questions
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Would the data on the RAID Card Cache and Drive Cache be lost when a kernel panic happens?

Is a BBU necessary when you have A+B power? Would the data on the RAID Card Cache and Drive Cache be lost when a kernel panic happens and you are forced to do a cold reset?
ispirto
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Server hangs at "Shutting down loopback interface" on reboot

I'm having some trouble understanding what's going on with connecting one of our Xen hypervisors to our iSCSI SAN. Ever since we mounted our iSCSI targets, we've experienced hanging on reboots. This is what it looks like... Stopping iscsi: …
James
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How to get a kernel panic count

Is there any way to check the number of kernel panic that happened on a system ? If not, any idea on how to do make this new functionality ? I would like to hear about an answer for most Unix-like systems :)
Antzi
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Troubleshooting seemingly random G4 kernel panics and lockups

Recently my 9 year old Apple G4 file server has been randomly crashing. Often it's a kernel panic, but sometimes the system just locks up. It seems almost always to happen when I'm out of my office... but even when I'm in my office, the system is in…
Josh
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Debian server locked - find_busiest_group?

Just wondering if anyone sees any clues from the following screen shot as to what might have caused this server to lock up: This server also locked up 6 months ago, and I still have the screen shot from that too: The server is running Proxmox 1.8…
Curtis
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CentOS OpenVZ kernel panic when mounting ext4 truecrypt volume in nokernelcrypto mode

I am experiencing kernel panic when trying to mount a ext4 filesystem which itself resides on a truecrypt volume mounted using -m nokernelcrypto option. The system is CentOS 6.3, OpenVZ Kernel 2.6.32-042stab074.10 The disk is a virtual disk (a…
Anton
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Ext4 kernel panic

I'm getting such kernel panics: EXT4-fs error (device md2): ext4_ext_find_extent: bad header/extent in inode #97911179: invalid magic - magic 5f69, entries 28769, max 26988(0), depth 24939(0) ----------- [cut here ] --------- [please bite here ]…
Spacedust
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Netconsole not working

I've gotten netconsole setup on a server that's been having a variety of kernel panics lately and I'm trying to log kernel messages to another server. I've tested netconsole after setting it up on the host server by start a netcat session and typing…
Striketh
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kernel panic: Out of memory and no killable processes (SuSe on VMWare ESXi)

we have a server (ESXi virtual machine) at work that time to time gets frozen because of "kernel panic: Out of memory and no killable processes..." Host's memory is 12GB. Configuration of virtual machine VMware ESXi VM version 7 2 CPU Memory…
Radek
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Debian Server Kernel Panic - Increasing Frequency

Server first crashed a week ago into a kernel panic and then rebooted, performed an FSCK and then came back up as normal. This then happened again this morning. Same panic, reboot, FSCK and then booted. However, it has now happened again today. I…
Joe
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Kernel Panic with gentoo boot (root partition not found)

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) grub.conf default 0 timeout 30 splashimage=(hd0,0)/boot/grub/splash.xpm.gz title Gentoo Linux 2.6.34-r6 root (hd0,0) kernel /boot/kernel-2.6.34-gentoo-r6 root=/dev/ram0…
JB87
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reboot on kernel panic and drac

Does anyone know if it is possible to have a DRAC5 make a screenshot of the console when Linux reboots (automatically) due to a kernel panic? Our current system doesn't reboot automatically when it panics, so we can manually make a screenshot using…
jap
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Diagnosing Hardware Problem in Linux Server that's Kernel Panicking

We have a server that has been occasionally kernel panicking for a while now that we believe has a hardware problem. How would you go about troubleshooting hardware that you don't have physical access to? Are there any tools that I can use within…
Jeremy Privett
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ext4 in debian 5 (2.6.26)

Is ext4 ready for production usage in debian 5 (with linux kernel version 2.6.26) ? Will it be stable, oops-free and bug-free?
osgx
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Ubuntu 18.04 kernel 5.0.0 kernel panic. Java. Memory mapped files and core pinning

we have been running our java system for over 2 years without ever having a system hang. We have 2 physical servers running similar java software (2 JVMs on each server) to form a cluster. As far as I can tell the crashing only started happening…
Gecko
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