The main component of most operating systems, the kernel manages most of a computer's communication between hardware and software. Typically, the kernel is the lowest level of abstraction a programmer can have to a resource.

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35 views

Kernel Panic from overheating?

I believe my CPU is overheating which is causing a kernel panic and the machine reboots. It is an Intel 3612QE. I have changed the cpufrequtils scaling_governor to ondemand, conservative, and also ...
2
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0answers
36 views

Possible to create custom distros off Windows NT kernel? [on hold]

Something I've always wondered (so my apologies if this is obvious). With all legality aside, is it possible for someone to attain the knowledge to create a custom OS off the windows NT kernel? Or ...
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0answers
10 views

Is system call the only way that a user program can intentionally affect the state of a Linux kernel?

I think there are several ways that a user program can intentionally affect the state of a Linux kernel. By invoking a system call; By invoking mmap() and writing the memory that has been mapped to ...
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1answer
926 views

How can I get the number of threads running in a process from /proc/[pid]/stat in Linux?

I have the pid of the process. I would like to know the current number of thread running in the process. I know I can read /proc/pid/stat for this information, but I'm not sure how to specifically get ...
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1answer
3k views

What do these error messages mean and how to fix it?

============================================================== actually I figured out this is an issue of intel video driver:http://lkml.indiana.edu/hypermail/linux/kernel/0902.3/01703.html ...
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3answers
13k views

Windows Kernel Name\Version?

Mac OS X has the Darwin 10.6.0 Kernel, and Ubuntu has the Linux 2.6 Kernel, so in Windows what is it called?
2
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1answer
3k views

The system time has changed kernel-general, off by one day

Random events showing in event log. The system time changes to tomorrow, and then corrects about 10-15 seconds later. Causing all sorts of temproary havoc w/ VPN, Outlook, etc. Any thoughts?
1
vote
1answer
32 views

What are the differences between the linux-virtual, linux-image-virtual, and linux-image-extra-virtual kernels in ubuntu? [closed]

I'm wondering what the differences are between these kernels? linux-virtual linux-image-extra-virtual linux-image-virtual
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1answer
24 views

What is the difference between linux-server vs linux-image-server on Ubuntu?

I cannot find a recent, definitive difference between linux-server and linux-image-server. I thought for sure this would be in the Ubuntu documentation, but I don't see it.
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2answers
29 views

Scrolling up the failed screen with kernel panic

From time to time, Linux booting failed on very early stage (like initrd loading). Then, the kernel panic message is showing up in text mode. Since the screen height limit, all I can see is around 40 ...
0
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1answer
20 views

Reinstall /boot/<kernel> files through apt-get?

I was doing some maintenance and a script got away from me. I managed to delete the latest kernel files from /boot (actually, all the kernel files, including the old ones). I need to re-install the ...
1
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2answers
2k views

Ubuntu Server 13.10: How to downgrade kernel

Ubuntu Server 13.10 appears to be very unstable, I got random crashes of the system with no apparent reason and nothing is showing in syslog. This is screenshot from the console when the crash ...
4
votes
3answers
522 views

Pipe kernel messages to another process as they occur

I have an OLED screen on my laptop that I have configured to show status information. The current driver I have installed in Linux for it is able to display messages by sending them to a script as an ...
1
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0answers
27 views

Is BIOS/UEFI used after OS startup?

I know that BIOS/UEFI is used during computer startup to boot the system and check HW and that it provides abstraction over hardware Does this mean, that the OS kernel calls BIOS/UEFI layer when the ...
0
votes
0answers
11 views

CentOS two sets of kernel packages

On my CentOS 6.2 system the rpm -qa command shows two sets of kernel packages and sources: kernel-2.6.32-220.el6.x86_64 kernel-2.6.32-220.7.1.el6.x86_64 kernel-devel-2.6.32-220.el6.x86_64 ...
0
votes
0answers
45 views

Telit modems on newer linux kernels are not recognised

I've Telit HE910 and HE910-v2 modems. After switching from 3.13-rc4 (sunxi branch) to mainline 3.17.2 I've got problems with 910. Before modem was set up properly: Jan 1 03:22:11 localhost kernel: ...
0
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0answers
122 views

Linux Mint won't poweroff, only reboots

I have a very strange problem with my Linux Mint. I'm using it on a lap HP455 and actually everything works fine except that when I have try to shut it down Linux will only reboot indefenitely. I've ...
2
votes
1answer
138 views

linux-headers-3.16.0-4-amd64 vs. linux-headers-3.16-3-amd64

"uname -a" returns 3.16-3-amd64 as my kernel version but I could install 3.16.0-4 via synaptic. Are these two same? OS: Debian Jessie
1
vote
1answer
100 views

Wi-Fi not showing up after kernel upgrade from 3.10 to 3.16 in Ubuntu 14.04

I upgraded the kernel in Ubuntu 14.04 from 3.10 to 3.16. My system is a Lenovo G510 59398431. After that the option “enable wifi” in the drop-down of wireless icon on the desktop is not there. Even in ...
4
votes
2answers
591 views

How to use usbmon for knowing amount of data transferred from usb (pendrive )?

Please someone explain me in simple terms how to use usbmon to track the amount of data transferred from pendrive ?
0
votes
1answer
45 views

Virtualbox not installing because of kernel version mismatch in fedora 20

I am using this answer to install Vbox,The only problem I have is with kernel version in the second part of that answer it tells output of uname -rm and rpm -qa kernel | sort -V | tail -n 1 ...
0
votes
1answer
28 views

What could cause out_of_memory & __alloc_pages

Sadly my server is permanently hangging due to out of memory: Nov 8 07:30:43 crawler kernel: Nov 8 07:30:43 crawler kernel: Call Trace: Nov 8 07:30:43 crawler kernel: [<ffffffff800cb625>] ...
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votes
1answer
31 views

Can anyone recommend a kernel System Filter Driver

Can anyone recommend a minifilter/systemfilter driver application that runs in kernel. I specifically want to use this to intercept calls to a device driver.
4
votes
1answer
31 views

How to distinguish 'syscalls' form 'int 80h' when using ptrace

As far as I know, ptrace can only get syscall number by PTRACE_SYSCALL, but syscall number is different in x86 and x64. So is there any way to figure out where this syscall real origin? I am now ...
0
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0answers
29 views

Is there anyway to get driver commands from a windows driver .sys

Is there anyway to Sniff out driver commands for a (.sys)system file driver?
2
votes
1answer
2k views

Kernel data types u8, u16, u32, u64 not resolved

I am trying to compile some files related to wireless subsystem (mac80211) which use datatypes u8, u16, u32, u64. These are not resolved. The header file being referred to is linux/types.h which is ...
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0answers
22 views

IPV6 address removed from interfaces while I make that interface down but IPV4 address still there

Firstly I assigned IPV4 and IPv6 addresses in an interface in Linux..then I brought the interface DOWN and then again UP that interface.. The problem is that then the IPV6 addresses are removed but ...
1
vote
1answer
28 views

Are my disks waking up too often?

I have noticed a sequence of this messages in my logs: Oct 27 02:20:38 kernel: sd 0:0:0:0: [sda] Synchronizing SCSI cache Oct 27 02:20:38 kernel: sd 0:0:0:0: [sda] Stopping disk Oct 27 02:20:38 ...
1
vote
1answer
19 views

Error compiling the linux kernel 3.8.0

I am trying to compile the Linux kernel on my virtual machine which is installed Lubuntu, and I am getting the following error: In file included from ubuntu/aufs/aufs.h:45:0, from ...
0
votes
1answer
105 views

CentOS yum — pre-existing rpmdb issues

I'm trying to install git on a developer box and I get the following: You could try using --skip-broken to work around the problem ** Found 3 pre-existing rpmdb problem(s), 'yum check' output ...
1
vote
1answer
779 views

What's this CS my kernel keeps rejecting?

I'm pretty sure this is being caused by my graphics card (ati r12xx or something) and its crappy Linux driver. I am not asking how to fix this problem. I am simply asking what does this "CS" mean? ...
0
votes
1answer
27 views

Enable KMS after logging in

Is there some way to enable KMS after booting. My linux box is set up to log into a console, with X having to be started manually if required. I do not want to enable KMS on booting, as it causes ...
3
votes
4answers
521 views

Does a software like VMware run in user space or kernel space?

Vmware is a user installed software. So it should run in user space given by the underlying OS. Yet its runs OS-es which are fully operational and need to run in kernel mode. So where does it run?
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votes
1answer
46 views

How does “explorer.exe” work and control the GUI? [closed]

All info states that this is the main shell of Windows 3.x versions and up of Windows OSes. My question is, how does this program have access to the entire GUI and screen/framebuffer data to draw and ...
1
vote
1answer
54 views

Swapping laptops while keeping current systems (kernel)

I am going to be getting a new laptop from HP soon, due to a faulty part, and they are giving my an upgrade. Almost all of the specifications will be changing, but I'm not keen on reinstalling my ...
0
votes
1answer
16 views

Which criteria is used by the linux kernel to pick udp source ports?

They are all of course greater than 1024, but can we narrow this range a bit more? Via wireshark the lowest I've seen is 30XXX. Does the kernel specify it's criteria somewhere?
2
votes
4answers
9k views

MacBook freezes, console printing kernel: disk0s2 I/O error

Yesterday I've closed my MacBook , opened it today and experienced horrible performance slowdown, beach ball and eventually a freeze. After several reboots I managed to close most of my applications ...
2
votes
2answers
140 views

Can linux kernel be installed alone without any other existing OS

Hi I am newbie to linux world. I have just downloaded the latest kernel from kernel.org. I want to install this simple kernel into my PC(my PC is formatted and has empty hdd). Can I do that? if so, ...
1
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3answers
2k views

Logitech M560 mouse on linux sends messed up input events

My friend bought yesterday a Logitech M560 mouse (you can see it here) and tried it on her Ubuntu system. It seems to be a relatively new model, so there is no info about it anywhere, except for ...
0
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2answers
66 views

installing linux without any packages

I am programming a OS based on Linux but I want to "re-invent the wheel" in this OS just as an achievement. I have been told that Linux can be installed on a PC without any packages (obviously causing ...
0
votes
0answers
29 views

Linux - Encrypt folder (no kernel modules allowed)

I'm trying to encrypt a folder on the fly on Debian Wheezy or create an encrypted container. The problem is: My VPS provider doesn't allow kernel modules. So far I tried EncFS, eCryptFS, dm-crypt and ...
2
votes
1answer
34 views

Running native applications on the Linux Kernel

When the Linux kernel has loaded it loads the distro or OS to take over, how can I make the kernel load some native application (written in c) instead? I don't need a GUI or anything, Instead I want ...
0
votes
1answer
168 views

Mouse stops moving after a every few seconds, but revives after click action

I am using Arch Linux and according to "uname -r" my Linux Kernel Version is 3.10.10-1-ARCH. This problem appeared after a full system update recently. Any idea how to fix this? Thanks in advance ...
0
votes
1answer
496 views

kernel source error on dahdi installation in centos

Trying to install dahdi from the link. I have downloaded package for dahdi. But on doing cd /usr/src/dahdi-linux-complete* make && make install && make config My terminal shows ...
2
votes
1answer
733 views

IPTables module ip_tables not found for root

We got a custom build Linux distribution from a vendor, which is not shipped with iptables enabled. root@xxxx:~# iptables -L modprobe: FATAL: Module ip_tables not found. iptables v1.4.21: can't ...
2
votes
1answer
2k views

What kernel modules are required for wi-fi to work?

My custom-built 2.6.32 kernel cannot connect to any WPA-protected network. The kernel includes (probably?) everything that should be needed for wifi, including IPv4 network support (IPv6 is ...
0
votes
1answer
32 views

Need To uncompress the initramfs file

I am new to this Linux Kernel and I am trying to boot a board from the usb and I was sucessfull Now My problem is the usb has two files a) initramfs.cpio.xz b) linux.img Now what I need to do ...
1
vote
0answers
33 views

Computer froze with black screen when viewing (not editing) video card's memory in Cheat Engine

I was looking at my computer's physical memory in Cheat Engine (a memory editor/debugger application) and I decided to look at the addresses that Device Manager says are used by my video card. When I ...
0
votes
0answers
145 views

Ubuntu 14.04 hangs at “[2.688088] Switched to clocksource tsc” (Intel Pentium 4)

I installed Ubuntu Server 14.04 on a Pentium 4 machine but booting the System hangs at: [2.688088] Switched to clocksource tsc I've tried all the Grub kernel bootoptions listed in this post: Linux ...
0
votes
0answers
39 views

kernel compilation fails at elf binary file on Mac 10.9

I am trying to compile rock chip kernel using "make -j4 kernel.img" and I get the following errors. SYSMAP System.map SYSMAP .tmp_System.map OBJCOPY arch/arm/boot/Image Kernel: ...