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drivers/rtc/hctosys.c: unable to open rtc device (rtc0) after recompile on boot

After recompiling a new kernel on CentOS 6.3, using the same kernel I have been using on several other machines, I am getting a kernel panic on two machines. I get the following when trying to boot: ...
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1answer
60 views

web server “task blocked for more than 120 seconds”

my web server is down every 2 days. it became unresponsive and I can only see the message below on the console. task **** blocked for more than 120 seconds. The only way to bring it up is resetting ...
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2answers
69 views

Frequent Kernel Panic on CentOS 6.5

I have a webserver with the configuration below: VMWare ESXi environemt CPanel installed CentOS release 6.5 (Final) 4 CPUs 2G RAM 2x VM disks 100G each LVM system My issue is I am getting kernel ...
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1answer
55 views

Kernel Panic - Not Syncing: Fatal exception

Server (HP Proliant D320e G8 v2) froze at this screen during boot today (running CentOS 6.5): I was able to get the server to boot after a 'press and hold'. I've been having many problems with the ...
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0answers
60 views

Nodes crash with kernel panic due to some bugs in autofs4 module

Recently, my computing nodes started to crash very often. In a pool of ~100 nodes running Ubuntu 12.04 for scientific computing, a machine dies every hour with the following kernel panic message: ...
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5answers
435 views

What is the cause of this kernel panic?

I've just set up a PXE boot server on Ubuntu 14 as it is described here https://help.ubuntu.com/community/DisklessUbuntuHowto. I have only remote access to the client server via KVM. The boot process ...
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2answers
1k views

Ubuntu 14.04 PXE boot with initrd (initramfs) kernel panic [duplicate]

The short story is this (as I understand it): I can't boot ubuntu over LAN (PXE boot) with the help of initramfs without compiling my own kernel. As I see, the problem is this: network interface ...
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0answers
157 views

Centos kernel panic after yum update

It's my error grub.conf Previous kernel (2.6.32-358.el6.x86_64) also not loading, but without error, just show progress loading and stop on 100%. I see missing initramfs, i trying add it, but ...
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1answer
128 views

kvm hypervisor kernel panic

My kvm hypervisor had been running with 20+ vps guests for a few months. But a few days ago it went to kernel panic. There were no abnormal operation that I found would cause the problem, except that ...
8
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2answers
285 views

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 ...
1
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0answers
290 views

Migrate CentOS VM using LVM on IDE to run with VirtIO

I'm trying to migrate existing IDE-using, LVM-based CentOS 5.2 VMs to use virtio. The symptom is a kernel panic upon boot when the system can't find any volume groups. Does anyone know how to make ...
4
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1answer
419 views

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 ...
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0answers
402 views

Server crash : “unable to handle kernel paging request”

My fresh new Ubuntu webserver randomly crashes with the following error in the syslog. It doesn't respond anymore and I have to do a hard reboot. It happens almost one time a day. Server kernel is : ...
2
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0answers
239 views

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 ...
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4answers
1k views

Linux oom situation

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 ...
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0answers
59 views

Java causing kernel panic

I'm running quite a lot of computations on Ubuntu 12.04 (3.8.0-35-generic), application is written in Java (Oracle 1.7.0_45-b18) on a server which has 12 AMD cores. Typically the computations uses 10 ...
2
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1answer
247 views

Out-of-memory kernel (3.2.0) panic (Debian 7.3) even though offending process was killed

While attempting a backup of a pretty large folder (450G) to a 2TB drive that's in that server solely as a backup destination rdiff-backup (version 1.2.8 - last marked stable) caused a kernel panic. ...
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0answers
45 views

FreeIPA issue: after ipa1 server kernel panic, not switching to ipa2 failover server

Our setup is as follows. All machines are running under Centos 5.8. We have a gateway machine with a firewall, gw.example.com, through which all external traffic is funneled. Behind it we have 2 ...
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2answers
181 views

Dell PowerEdge 1950 strange reboot

I have Dell PowerEdge 1950 with debian which reboot without reason, and after reboot BIOS write that "previous shutdown was with error press f1 for continue". First of all, is it possible switch of ...
0
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1answer
91 views

Permission denied when setting values in sysctl on Ubuntu 12.04

I am trying to configure my Ubuntu 12.04 VPS (OpenVZ) to reboot when it runs out of memory. To do this I have added following lines to my "/etc/sysctl.conf" file. vm.panic_on_oom = 1 kernel.panic = ...
0
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1answer
800 views

FreeBSD guests running on ESX hang without panic log

We have three servers running on a same ESX host, all virtual disks are from a remote SAN storage controller. These tree servers hanged and restarted several days ago, and it happened to the DB server ...
2
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1answer
656 views

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 ...
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2answers
93 views

continous kernel EIP errors

I am getting the following error time to time. Process is different at each time. What do you think about the error? What do you suggest? Kernel is Linux version 3.5.3 (developer@devel) (gcc ...
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votes
2answers
121 views

How to get a kernel panic count [closed]

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 ...
4
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1answer
542 views

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 recipe: ...
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3answers
2k views

Command to output panic/reboot history in FreeBSD

Many years ago while dealing with a FreeBSD (5.3?) box that randomly panic'ed and reboot (bad memory as it turned out), I came across a command in some forum post that when used would output ...
2
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1answer
367 views

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 ...
4
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3answers
666 views

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 ...
2
votes
1answer
100 views

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 ...
6
votes
1answer
409 views

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 ...
0
votes
1answer
254 views

Kernel panic during rsync

I am running OEL 6.4 (a RHEL clone), and rsyncing large files over ssh nightly. During the rsync, I regularly (most nights) get a kernel panic: Message from syslogd@cheshire at Mar 24 00:39:01 ... ...
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2answers
3k views

Oracle Linux 6 kernel panic boot - anything I can do?

I'm running Oracle Linux 6 on a HP Proliant server. It's been running fine for the last week, but seemed slow earlier so the Oracle service was stopped. Rather than restart the service, I was asked to ...
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0answers
119 views

Server panic after configuring the memory usage for kdump

I tried to set up the kdump on my CentOS 5.8 system. I tried editing the /boot/grub/grub.conf and insert the line crashkernel=auto between the kernel and initrd entry. Then proceed on editing ...
0
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0answers
93 views

Debian server locked - does this console screen shot provide any clues?

I had a server lock up several months ago (actually it's almost been a year). At the time, I only had time to grab a screenshot of the kernel dump: The server has not locked up again, but I am ...
0
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1answer
86 views

Kernel panic - not syncing: BRKADRINT

One of the machines on the network started beeping continuously and was unresponsive locally as well over the network. We shut it down keeping power pressed. Upon reboot, the boot stopped with Kernel ...
4
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2answers
505 views

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 ...
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2answers
74 views

Kernel Panic while compiling PHP

The server threw a 'kernel: Oops: 0000 [1] SMP' while compiling PHP 5.4.9. It crashed when I try it again just to make sure that it was the culprit. Other than that, the server works fine. Its ...
1
vote
3answers
825 views

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) ...
0
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1answer
196 views

How to log kernel panics without KVM

My server is crashing and I can't find an answer why. It all started after my datacenter upgrade RAM from 16 GB to 32 GB. I also found such logs in dmesg - they've started to show itself just before ...
1
vote
0answers
158 views

OpenStack compute nodes kernel panic

I'm fairly new to the OpenStack world and have been working on getting our first cluster up and running. I've primarily been using this document http://wiki.debian.org/OpenStackPuppetHowto among ...
1
vote
1answer
1k views

md/raid:md2: cannot start dirty degraded array, kernel panic

After having made use of a remote power switch, my server did not come back online. When I went to the datacenter and reboot the computer on the spot I see the server booting (I see the centos ...
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0answers
439 views

Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-bloc(8,2)

I am a spanish speaker so excuse me for my bad english. I am learning how to compile slackware kernel, so I have downloaded linux-3.2.7.tar.bz2 from http://www.kernel.org Conditions: Slackware ...
1
vote
1answer
535 views

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 ...
1
vote
3answers
1k views

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) ...
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3answers
6k views

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 ...
0
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1answer
511 views

Sudden kernel panics on Linux server

A few days ago a server I manage had a panic, after 400+ days of uptime. I rebooted it and it worked for two days or so, then it hit an "oops: cpu#n stuck for 61s" for various values of n. Rebooted ...
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1answer
2k views

dirty degraded array, unable superblock, kernel panic

Machine: linux centos 5.4 with 2 hdds and raid 5 (yes, 3rd disk missing). Situation: all running fine (3rd disk missing) then a power off (system shut down itself when battery power ended). ...
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2answers
483 views

New kernel compilation on CentOS

I'm trying to compile and install kernel 3.2.9 for CentOS 5.6. I compiled new kernel and installed kernel modules: make && make modules_install I also created new initrd image: mkinitrd ...
2
votes
1answer
348 views

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 ...
0
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0answers
302 views

xen domU kernel panic with “alignment check” on 2.6.32-5-xen-amd64

I'm running 2.6.32-5-xen-amd64 on a domU with Debian stable and 6 vcpus. Without changing anything in the architecture 3 days ago it started throwing kernel panics on high load. I've researched online ...