Questions tagged [kernel-panic]
107 questions
17
votes
4 answers
Linux oom situation (32 bit kernel)
I have continous oom&panic situation unresolved. I am not sure system fills up all the ram (36GB). Why this system triggered this oom situation? I suspect it as related to lowmem zone in 32 bit linux systems. How can I analize the logs from kernel…
seaquest
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11
votes
4 answers
How can I see logs in a server after a kernel panic hang?
I am running a production gentoo Linux machine, and recently there was a situation where the server hung in my co-located premises and when I got there I noticed that the server was hung on what appeared to be a kernel panic hang. I rebooted the…
Low Kian Seong
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9
votes
2 answers
Why would a server lockup knock other servers off the network?
We have a couple dozen Proxmox servers (Proxmox runs on Debian), and about once a month, one of them will have a kernel panic and lock up. The worst part about these lock ups is that when it's a server that is on a separate switch than the cluster…
Curtis
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7
votes
1 answer
Failing to mount root from ramdisk while PXE boot
I have a working TFTP/DHCP PXE boot environment where I've already booted some images successful. Now I built an CentOS 6.5 diskless image and this one is failing booting with the following error:
No filesystem could mount root, tried: …
marcap
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7
votes
1 answer
FreeNAS ZFS Kernel Panic
I'm running FreeNAS 8 and my computer had a hard reset from a power outage and now every time I try to boot I get the following error message:
Error Message: panic: zfs_replay_acl_v0:898: unsupported condition
I am running ZFS with ZFS filesystem…
MSumulong
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5
votes
1 answer
'BUG: unable to handle kernel NULL pointer dereference at' on Google Compute Engine
On a semi-regular basis, I've seen GCE instances freezing with the following error message (from the serial console):
g[1375589.784755] BUG: unable to handle kernel NULL pointer dereference at 0000000000000078
g[1375589.786206] IP:…
vpetersson
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5
votes
1 answer
Automatic Reboot after Kernel Panic
I am currently running Ubuntu 9.04, Jaunty, and have had some issues that caused a few kernel panics to crop up. These panics cause the system to dump a bunch of information to the terminal and hang.
More often than not, these happen while I am away…
Marcus Griep
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4
votes
1 answer
FreeBSD 10.1 how to autoreboot on kernel panic
Recently I installed FreeBSD 10.1 on machine that for years was working fine with FreeBSD 6.2. Since machine is located in datacenter I configured remote access via serial console.
After installation I encountered a weird problem on boot.
Every…
norbi771
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4
votes
5 answers
What is the cause of this kernel panic?
I've just set up a PXE boot server on Ubuntu 14 - running kernel 3.13.0-30-generic - as it is described here https://help.ubuntu.com/community/DisklessUbuntuHowto on Supermicro X9DRFF hardware.
I have only remote access to the client server via KVM.…
Grigory
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4
votes
1 answer
CentOS 6.5 mdadm Raid 1 - Kernel Panic during raid data check
I have a brand new CentOS 6.5 install with two (mounted to /mnt/data) 1tb Western Digital Black drives in raid 1 with mdadm, configured via the installer.
Unfortunately every now and again the entire system kernel panics with a trace similar to…
md_5
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4
votes
3 answers
Compiling kernel version >= 2.6.34 on CentOS 5: RAID set "ddf1_foo" was not activated?
I want to mount a Ceph FS on some CentOS 5 servers. Since the ceph-fuse failed with below errors:
# ceph-fuse --no-fuse-big-writes -m 192.168.2.15:6789 /mnt/ceph/
ceph-fuse[7528]: starting ceph client
ceph-fuse[7528]: starting fuse
fuse: unknown…
quanta
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4
votes
1 answer
Custom Centos5 AMI kernel panic
I'm trying to build a Custom Centos 5 AMI on Amazon and during boot it kernel panics.
I've spent almost a week on it and I can't figure out what's wrong.
I've followed the following…
Luis
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4
votes
2 answers
How to get a kernel panic report
I have a server on datapipe clould. I am running ubuntu 12.04. My servers have been crashing in the sense that mmonit marks the server with a red dot and I cant ssh into the machine. This is due to chef-client. So...I want to reboot a machine so…
Tampa
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3
votes
1 answer
How do I configure ZFS to panic on da (SCSI) disk failure?
Situation: two redundant FreeBSD machines using CARP to share a primary IP, running a frontend proxy (E.G. HAproxy or nginx)
Primary machine experiences a loss of SCSI disk (E.G. disk failure, SAN storage failure, etc) and services fail (L7 timeouts…
Josh
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3
votes
0 answers
Kernel Crash - kernel: BUG: unable to handle kernel paging request at 00000000ff8179b9
One of my Oracle Linux 6.5 Server running Oracle ASM/GRID experienced a kernel crash, it didn't respond i have performed a hard reboot.
Server is Oracle Linux 6.5, kernel 2.6.39-400.214.3.el6uek.x86_64, 32GB RAM, 35GB swap, also there is no warning…
J. B. Hat
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