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Xubuntu - Kernel panic [migrated]

I'm getting a sudden kernel panic error out of no where. I even tried Boot-Repair but ended up with no luck Here's my boot-repair information - http://paste.ubuntu.com/12107541/ I'm wondering is ...
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0answers
90 views

'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 ...
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0answers
154 views

task nginx:4164 blocked for more than 120 seconds

My server was working fine for 173 days then it started to happen. Upgrading CentOS 6.6 kernel to latest one didn't helped. Rebooting helps for about 10 minutes then it starts all over again. I'm ...
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0answers
122 views

how to turn a rescue kernel into a working one?

A yum update today made one of my CentOS 7 servers unusable: there is kernel panic as soon as the boot starts. I tried to start previous kernels from GRUB but all of them crash the same way. I even ...
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0answers
43 views

“eth0: link up” kernel panick on debian - DDoS attack or soft / device issue

A few hours ago my dedicated machine in Hetzner went down. I was thinking what that was DDoS attack, or Hetzner network problem. But my other machine was working fine. So i loggined into Hetzner and ...
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1answer
104 views

Server crashes with “huge task timeout”

First things first, I've read a lot about the "huge task timeout" kernel panic and know that this often happens if the server is out of resources. Error messages which appear only in the VNC console ...
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0answers
62 views

Server crashes because of SMP

My web server is crashing every few days unless I disable SMP with "nosmp" parameter in Grub config. It is not an hardware failure because the problem persists after moving everything to a new ...
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0answers
42 views

Analyse kernel crash file on Ubuntu server 11.10

I am experiencing random crashes on a Ubuntu 11.10 server, and for the time being the system can not be upgraded, even tho this distro is very old. uname -r 3.0.0-12-server I've set it up to get a ...
2
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1answer
374 views

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 ...
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3answers
396 views

Oops in syslog and freeze the server with docker

I've got following exceptions after my server freezes and reboot for 2 times I cannot tell the relevant with docker, but it happends every time I started some containers and I cannot find any useful ...
2
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3answers
186 views

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?
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0answers
220 views

Copying from NFS mount crashes Linux client machine

I have NFS share mounted on CLIENT in /etc/fstab: SERVER:/share on /mnt/share type nfs (rw,users,noexec,nosuid,nodev,timeo=14,hard,intr,addr=1.2.3.4) Intensive use on client like copying a lot of ...
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1answer
89 views

General protection fault by __d_drop following SMTP attack

The SMTP port (Postfix) of my box running 3.16.5 is being hammered. The log repeats this over and over: Nov 14 09:16:25 [postfix/smtpd] lost connection after UNKNOWN from unknown[177.43.41.74] Nov 14 ...
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1answer
1k views

Kernel panic installing CentOS7 guest on CentOS7 host

I'm trying to install a CentOS 7 guest as a guest on CentOS 7 KVM host but keep getting a Kernel panic, and it seems to happen at the exact same spot every time. I've even tried installing a CentOS 6 ...
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1answer
2k 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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1answer
1k 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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2answers
5k 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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5answers
3k views

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 ...
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1answer
193 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 ...
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1answer
857 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
833 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
666 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 : ...
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0answers
631 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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0answers
193 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 ...
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2answers
491 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 ...
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4answers
3k 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 ...
3
votes
1answer
442 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
59 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
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1answer
160 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 = ...
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2answers
301 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 ...
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1answer
1k 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
278 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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2answers
168 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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3answers
923 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 ...
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1answer
147 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 ...
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1answer
400 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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1answer
872 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
442 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 ...
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0answers
103 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 ...
3
votes
2answers
4k 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
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1answer
117 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 ...
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2answers
78 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 ...
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3answers
1k 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) ...
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1answer
239 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 ...
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0answers
219 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 ...
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2answers
1k 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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1answer
2k 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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1answer
650 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 ...
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1answer
1k 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 ...
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1answer
740 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 ...