for questions concerning Ubuntu's kernel, including compiling and questions relating to modules

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1k views

problem Kernel panic - not syncing: fatal exception in interrupt drm_kms_helper:

I'm having a problem with my Dell Inspiron 1564, I am getting this error: problem Kernel panic - not syncing: fatal exception in interrupt drm_kms_helper:: panic occurred, switching back to text ...
4
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0answers
675 views

Is there a guide for using GRSecurity and Precisew/ PAX?

I'd like to know if there is a guide of some kind for (successfully) configuring, compiling and installing GRSecurity w/PAX etc. in Precise? I basically am trying to build my own custom release ...
3
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0answers
44 views

Is there a reason the Kernels from the Kernel PPA don't have various features turned on?

I tried to use a Kernel PPA version of 3.16 today to debug an issue I've been having. Everything was working well until I noticed that my usual AuFS mounts weren't online. I combine a few directories ...
3
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0answers
123 views

14.04 - USB microphone speaker device not working anymore

I own a PJP-20UR web conference microphone speaker, I have been using this USB device for ages with Linux, Windows, Mac never ever have had any issues with it. Since I upgraded from Ubuntu ...
2
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0answers
44 views

How do I resolve a kernel panic without reinstalling?

I forgot to make a backup and it would take forever to reinstall and get it to a point I could use even if I were to copy over the home folder. I recently got a kernel panic with the message ...
2
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0answers
63 views

Unable to boot after update

After a update, Ubuntu won't boot anymore and gives: error: could not read file. If I'm fast enough to press a button to continue, I get Kernel panic - not syncing: VFS: Unable to mount root fs on ...
2
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0answers
55 views

Ubuntu not loading - kernel panic

Installed Ubuntu on new laptop with Win8.1 installed from USB key. Worked fine and could dual boot. Installed updates and rebooted when instructed Got following message when booting into ubuntu: ...
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0answers
40 views

How to safely update software with a non-standard kernel?

Background I have an Asus UX302LA laptop running Ubuntu 14.04. As the default kernel mainline (3.13.*) is incompatible with the GeForce graphics card it ships with I switched to to a ...
2
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0answers
48 views

How to disable Lazy Preempt in kernel

I'm relatively new to Linux and working on getting a real-time kernel up and running for robot applications. I'm on Ubuntu 14.04, using kernel 3.14.3 and the 3.14.3-rt5 real-time patch. Also using ...
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60 views

Black screen after upgrade 12.10 now a very simple question

SO HERE IS MY QUESTION: What can I do to prevent this from happening next time I upgrade Ubuntu to another version? Here is a long involved saga of reinstalling nvidia drivers resulting in a happy ...
2
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0answers
91 views

Is it possible to compile a kernel module under chroot?

Under a chroot environment, is it possible to build a kernel module without having the kernel installed, just the headers? It sounds like something you wouldn't want to do, but in my case I do. I've ...
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27 views

Boot error for newly compiled kernel in Ubuntu

When I am booting into the newly compiled kernel it is showing error. Following image shows where the booting stopped.
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78 views

What is the current status of the x32 ABI implementation in Ubuntu as of 14.04?

The 14.04 release notes contain the following sentence: X32 ABI support (64-bit mode with 32-bit pointers) was also introduced. I think this deserves a bit more explanation. When you use a ...
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0answers
52 views

Not able to boot ubuntu after windows drive format

I formatted one of the partitions of my Windows 8 drive after which my Ubuntu is not booting. I am using a dual boot system with Ubuntu 12.04 release. On booting, grub menu is displayed properly. ...
2
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0answers
118 views

Cannot find classmap.h

When i execute: make modules i get the error: make[1]: Nothing to be done for `all'. make[1]: Nothing to be done for `relocs'. CHK include/generated/uapi/linux/version.h CHK ...
2
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0answers
129 views

Module acpi not found

My OS is 12.04, I'm not able to suspend and wake up my PC at given time, or better if I run sudo rtcwake -m mem -s 120 My PC enter suspend mode and the power-on light turns up after 2 minutes, but ...
2
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0answers
154 views

Ambient light sensor support

I have a 2010 Sony Vaio laptop running Ubuntu 12.10, with an ambient light sensor installed to adjust screen brightness automatically. However, last time I checked, this was not supported by default ...
2
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0answers
412 views

Propietary Nvidia driver kernel initialization error

Brief summary: I installed Nvidia proprietary drivers and at boot I see the splash screen and then it drops to the command line login screen. Details: I am running Kubuntu 13.10 and wanted to install ...
2
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0answers
293 views

lshw and lspci cannot find ethernet device

I have an ASUS H87M-PLUS motherboard. This board comes (according to manual) with a Realtek 8111G ethernet device. In the BIOS, the ethernet device is enabled. Yet, linux does not find a single ...
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0answers
175 views

Apple aluminium keyboard hub is supplied to little power

I have an Apple aluminium keyboard with an integrated hub. On Mac OS X, I'm able to connect both my mouse and a USB pen drive while on Linux, the power limit is exceeded when connecting more than one ...
2
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0answers
82 views

t902: Additional buttons - how to use them?

I have a Fujitsu T902 and have several problems. I guess I'll split them up into different questions. I have installed 13.10 Ubuntu, uname -a tells me: 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 ...
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0answers
1k views

Crashing system - how to xhci_hcd unload and only allow ehci_hcd in Ubuntu 12.04, 13.04 for debug some usb hardwares

I have few USB hardware who is using 500mA (5V) power, after reserching found that external power supply or hub was the solution but that was a waste of time, even doing external power the problem ...
2
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0answers
440 views

Installing linux-generic-lts-quantal in 12.04.3 via preseed

I'm struggling with getting this working. The problem is, the backported raring kernel breaks OVS. So we need the quantal kernel. I've tried this in my preseed: d-i ...
2
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0answers
186 views

Kernel fails to build Broadcomm dkms modules, how to fix it?

My computer is not recognising the wireless network. When I try to activate my drivers I get errors. I tried to solve by: sudo apt-get remove bcmwl-kernel-source sudo apt-get install ...
2
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0answers
271 views

Why aren't my changes to /etc/security/limits.conf having effect?

I am trying to provide support for core dumps on my Ubuntu machine (as by default they are disabled). So I have made the following changes to /etc/security/limits.conf: root hard core 1000 After ...
2
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0answers
317 views

Ubuntu 13.04 does not boot after update

as a complete newbie to Linux, I just installed a brand new Lenovo ThinkPad X230 with Ubuntu 13.04 from USB stick. Downloaded the installer from ubuntu.com and put it on a stick. No issues. Next day ...
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0answers
871 views

gcc does no come up with new upgraded Kernel

After I figuerd out my ubuntu 12.10 amd64 with 3.5.X Kernel does not fill some queuing, and they've fixed that in kernel 3.8.x, I upgraded the kernel of my Ubuntu to v3.10-saucy with installing deb ...
2
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0answers
508 views

Ubuntu 12.04 with 2.6.38 kernel

Can I install vanilla kernel 2.6.38 on Ubuntu 12.04?!? I tried installing it and booted 2.6.38 instead of default kernel but it never boots up. All I need to know is can I install 2.6 kernel on ...
2
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0answers
316 views

Need help to find/install up to date ATI drivers for kernel 3.5+

GPU: Radeon HD 5450 Distro: Ubuntu 12.10 Attempting to go to the AMD website and filling out the relevant information gives me this, however these drivers are incompatible with kernel 3.7 and when ...
2
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0answers
337 views

No filesystem could mount root

I am trying to boot a linux kernel 3.7.0 on virtualbox and it keeps telling me the same message: "No filesystem could mount root tried ext3 ext4 vfat fusebk". I put append root=/dev/sda in my isolinux ...
2
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0answers
134 views

LiveCD Boot Failer comm: Swapper/0 cant mount VFS

Kind of a noob but anyway... I'm trying to boot Ubuntu 12.10 livecd. I currently have Windows 7 x64 installed. I start computer to boot Ubuntu livecd and I get kernel panic. Something like: cannot ...
2
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0answers
224 views

Ubuntu 12.10 not properply working on Asus u46E after Update

I recently installed the latest Ubuntu update on my laptop and since then, the alignment on the browser is messed up, the mouse is not working, and I can't connect to the internet. Before it was ...
2
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0answers
112 views

Which logs will tell me about the Touchpad and Keyboard locking up?

I have an Asus N53SM laptop that I leave running for several weeks at a time. I never put it in hibernate or suspend, I only close the lid when I'm not using it. After a few days or weeks of running, ...
2
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0answers
608 views

Why is only one CPU detected on a Macbook with a dual-core processor?

I have a January, 2009 Macbook5,2. It has an Intel Core 2 Duo 2Ghz processor. Since installing Xubuntu 12.04, it runs very slowly. The CPU gadget in the top panel shows only 1 dark column to the left ...
2
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0answers
585 views

Kernel panic on Lenovo ThinkPad W510 Ubuntu 10.10

When I leave my Lenovo ThinkPad W510 laptop unattended it locks the screen as it is supposed to do. But when I come back I usually find the kernel panic going on on the laptop: the Caps Lock light is ...
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0answers
16 views

Build identical ubuntu kernel packages

I compile my own patched version of the upstream linux-kernel. Until now I have always used make-kpkg, by running CONCURRENCY_LEVEL=9 fakeroot make-kpkg --initrd --append-to-version=-patched ...
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0answers
10 views

Can I use my serial receipt printer as an emergency console?

I recently came into possession of a serial receipt printer and I would like to know if I could use it as an emergency print-out console for the following purposes: Kernel Panic (Stack Traces) Any ...
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0answers
22 views

laptop sees two connections when HD TV is plugged, but no image

With Apple Macbook Air 1,1 (Early 2008) and Ubuntu 12.04 with kernel Linux 3.2.0-68-generic-pae, when I connect it to an HD TV via the micro-DVI to DVI (Apple adapter) --> DVI to HDMI (I tried two ...
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0answers
17 views

linux-image-generic missing - is this a problem?

After removing old and unused kernels from my wife's laptop as per this question: What kernels & packages do I un-install? I thought I'd do the same on my laptop, since I've been running Ubuntu ...
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0answers
69 views

synaptics driver not workin with new kernel?

after I upgraded from kernel 3.13.0-29 my synaptics driver seems to stopped working. basic touchpad functions still work (this includes moving cursor and clicking) but no right click nor middle click ...
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0answers
53 views

How can I upgrade to Lubuntu 14.04.1 withot a PAE kernel?

On my Dell Latitude D800 laptop, which has an old Pentium M without PAE support, I was able to successfully install Lubuntu 14.04 from the CD. When I try to upgrade, I get the error: PAE not enabled ...
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0answers
22 views

Wireless Repeater causing kernel to crash

So my wireless set up is not ideal as far as my location relative to my AP goes. However I recently remembered I had/dug up an Amped Wireless 300N repeater (range extender). I set it up in my living ...
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0answers
49 views

TCP hash tables in Linux Kernel

I have implemented a solution to migrate sockets between servers running Linux OS. The migration mechanism works very well and the client is capable of continuing receiving his service from the new ...
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0answers
106 views

Cleaning up old HWE stacks?

I've been running 12.04 since release and have updated to every new HWE stack. I am currently on 12.04.4. Does anyone know how to clean out all the old versions of HWE? I currently have way too many ...
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0answers
50 views

System Updated to 3.13 Kernel that won't boot

Recently, I got a message that told me automatic updates to my hardware would end 8/07 and decided to update my system to the latest kernel version 3.13. I'm running Ubuntu 12.04 on some fairly old ...
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0answers
125 views

How to BuildMyOwnKernel, bumping +1 for revision number version?

I'm facing a hard time with Linux 3.13 from Trusty but, it is another topic (http://www.mail-archive.com/ubuntu-server@lists.ubuntu.com/msg06775.html), so, I decided to backport the Linux 3.16 from ...
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0answers
51 views

error while booting xubuntu 14.04

I get a message on the screen every time I load xubuntu 14.04 on my xp mini, which says: " Support for core revisions 0x17 and 0X18 disabled by module paron allhusupport=0. Try013.allhusupport=1. ...
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0answers
24 views

Is there any solution to set baud rate, line discipline etc., by only using our kernel module?

I wrote a kernel module for a touch screen monitor and earlier I used inputattach (written in userspace) to open serial port, set baud rate, control flags, line discipline etc. But now I want to ...
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0answers
24 views

How To Add LZMA Files

Maybe someone here can help me. Is there a way to add LZMA files? You have your uImage; you extract the kernel and then decompress it and run binwalk on it to get this (example): DECIMAL HEX ...
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0answers
195 views

Can't switch to Discrete GPU Hybrid Graphics ATI/intel

Just recently I had got my hybrid graphics working with DRI_PRIME=1. I obviously have the open source drivers. Now for some reason that I can't figure out it has stopped working. xrandr ...