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1answer
35 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 ...
0
votes
2answers
48 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 ...
0
votes
1answer
32 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 ...
0
votes
0answers
39 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: ...
0
votes
2answers
624 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 ...
4
votes
5answers
387 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 ...
0
votes
0answers
139 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 ...
1
vote
1answer
112 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 ...
1
vote
0answers
259 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
votes
1answer
408 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 ...
0
votes
0answers
351 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
votes
0answers
207 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 ...
0
votes
0answers
57 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 ...
7
votes
2answers
281 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 ...
5
votes
4answers
915 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 ...
2
votes
1answer
242 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. ...
0
votes
0answers
44 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 ...
0
votes
1answer
87 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
votes
2answers
177 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 ...
2
votes
1answer
607 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 ...
0
votes
2answers
90 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 ...
2
votes
2answers
118 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
votes
3answers
651 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 ...
0
votes
1answer
244 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 ... ...
4
votes
1answer
523 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: ...
2
votes
1answer
357 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 ...
0
votes
0answers
117 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
votes
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 ...
2
votes
2answers
2k 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 ...
0
votes
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 ...
-1
votes
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
803 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
votes
1answer
191 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 ...
0
votes
1answer
979 views

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: ...
1
vote
0answers
155 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 ...
4
votes
2answers
470 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 ...
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 ...
1
vote
0answers
426 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 ...
6
votes
1answer
400 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 ...
1
vote
1answer
519 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 ...
0
votes
1answer
500 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 ...
1
vote
2answers
477 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
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). ...
0
votes
0answers
300 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 ...
1
vote
2answers
311 views

Issues debugging a kernel panic (custom kernel)

I'm looking to compile a custom kernel from the official source tree (kernel.org). The machine itself runs the latest stable RHEL kernel without issues but I can't seem to figure out why it's ...
0
votes
0answers
216 views

Server is crashing - kernel panic - screenshot

Can anyone decipher whats going on in this screenshot : http://i.imgur.com/pJ8FV.jpg My server keeps going down, my host rebooted it and took a photo of the monitor for me Server config: AMD 945 x4 ...
1
vote
1answer
393 views

Kernel Panic after Installation Issues with Ubuntu 10.04.3 LTS

Update 2 The installation from Update 1 was successful. Update 1 Just removed RAID10 from all six drives, and RAID10 configured only the first four devices. After doing so, the installation was ...
3
votes
1answer
352 views

Has anyone seen this kernel panic? What to do? (Ubuntu 10.04 LTS)

The last few weeks, we've been getting this kernel panic on one machine or another out of a cluster of 15, about one every four days. The machines are all running Ubuntu 10.04 LTS with Erlang R13B03; ...
3
votes
3answers
2k views

Setting the timeout for HP iLO VSP in order to catch kernel panic

So i have a server that has locked up twice recently. What i want to do is catch any kernel panic/oops written to the serial console. I can ssh in and start the VSP and i'm running my SSH session in ...