Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [linux-kernel]

The Linux kernel is the operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.

The Linux kernel is the operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.

The Linux kernel is released under the GNU General Public License version 2 (GPLv2) (plus some firmware images with various non-free licenses[citation needed]), and is developed by contributors worldwide. Day-to-day development discussions take place on the Linux kernel mailing list.

585 questions
0
votes
2 answers

linux virtual server with io issues - deadline vs noop elevator

I have a Linux virtual server experiencing IO issues from MySQL. Would using the deadline io elevator possibly be preferable to noop in this case? Thanks
iwander
  • 9
  • 1
0
votes
1 answer

Adding Linux kernel command line parameters

I would like to increase the size of the vmalloc region from the default value, and pass vmalloc= as a command line parameter while booting. I am booting a uImage. In which file do I need to add the new vmalloc command line parameter so that it is…
Rai
0
votes
2 answers

Activate Passive Arp learning

I want to enable my linux-kernel to passively listen (learn) the arp request broadcasted in the lan segment (arp request in the network not destined for me). Is there any configuration available?
sahil
  • 121
  • 1
0
votes
1 answer

Xen dom0 crashed

Lots of questions this week, I got this error on dom0, then the server crashed (according to /var/log/messages): Jun 22 10:02:09 453 dhcpd: DHCPACK to xx.xxx.xxx.xx (xx:xx:xx:xx:xx:xx) via eth0 Jun 22 10:02:10 453 kernel: list_add corruption.…
JohnT
  • 49
  • 1
  • 1
  • 1
0
votes
1 answer

linux kernel soft lock nagios

I've had this happen a few times in the past few days, anyone have any idea what might be causing this? Looks related to nagios/smp/memory management. Seems to be recurring every 24hrs or so. This is a debian 6 system with latest 2.6.32 kernel from…
Blair
  • 3
  • 1
0
votes
2 answers

Weird [migration/x/x] behaviour

On one of my servers there are 173 [migration] processes listed in ps aux. It has 8 processors so there are the regular 1 per processor right at the top of the list. PID COMMAND 2 [migration/0/0] 4 [migration/0/1] 6 [migration/0/2] 8 …
Nick
  • 287
  • 1
  • 10
0
votes
1 answer

adding new scheduling policy to the kernel

i'm working on a redhat 8 linux and i want to add new policy for scheduling the processes , could you help me with : 1) where to define the new policy 2) how does the process of assigning a policy for a process goes? detailing function names and…
saeed hardan
  • 99
  • 3
0
votes
2 answers

Linux kernel upgrade broke : How do I remove the kernel that broke it all?

I just upgraded an Ubuntu 10.04 (Server Edition) to '2.6.32-36'. However, after doing that upgrade the server would not longer start and GRUB tells me that it is unable to read the header. I rebooted the machine, held down shift while starting up…
sbrattla
  • 1,578
  • 4
  • 28
  • 52
0
votes
1 answer

Linux Kernel Usb Printer Device Class driver

I am trying to update the CUPS daemon on my QNAP NAS, which runs a flavor of *nix. The entire OS system is loaded on a RAMDISK when the NAS boots so I've come up with a script that runs at start-up and injects my own coding. Now my problem is that I…
Chris19
  • 61
  • 1
  • 1
  • 4
0
votes
2 answers

ESXi :: vmxnet3 vNIC and Linux kernel errors

a long shot, but figured I'd give here a try (no solution on VMware community forum). In a Linux guest (CentOS 5.7 64-bit) with vmxnet3 vNIC we are getting a few hundred kernel errors per day on primary eth0, DMZ NIC, which handles majority of…
virtualeyes
  • 675
  • 3
  • 12
  • 28
0
votes
2 answers

no network or disk devices in Arch Linux Xen guest during installation

I'm trying to install Arch Linux under Xen as domU (Guest) from Arch Linux official 2011.08 x64 Core iso image. My web hosting offers a SolusVM control panel with ability to install custom ISOs, so I have full control over guest, but not over host.…
nponeccop
  • 354
  • 3
  • 16
0
votes
1 answer

How to fix "disappeared" memory after Linux 2.6.18 Kernel?

Moved from here: https://stackoverflow.com/questions/7070640/how-to-fix-disappeared-memory-after-linux-2-6-18-kernel I think there is currently a known issue that there are some issues with memory display since 2.6.18 kernel: For example: dmesg |…
zhuanyi
  • 191
  • 3
  • 11
0
votes
2 answers

Removing a module currently in use

I want to remove a module currently in use in linux. Module name is say i915 (display module) rmmod i915 shows Module currently in use. Similar output using rmmod -f i915 and it is not dependent on any module. How to go about doing this. Thanks in…
Jatin Kumar
  • 147
  • 2
  • 8
0
votes
2 answers

VMware player and ubuntu 11.04

I'm trying to run VMware player 3.1.4 on the latest ubuntu (11.04), but it fails to launch saying: Kernel Headers for generic pae not found. C header files matching your running kernel were not found. Refer to your distribution's documentation for…
Mascarpone
  • 872
  • 3
  • 9
  • 28
0
votes
1 answer

ionice or chrt for Bonnie benchmark

I am running Bonnie benchmark on an embedded device and I am getting variable results for every run. I am contemplating using ionice and / or chrt to get around it. Can you suggest which option is better ? ionice or chrt ?
Ankur Agarwal
  • 457
  • 1
  • 6
  • 15
1 2 3
…
38 39