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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500 views

Stuck on GRUB command prompt after regular kernel update

I am running Debian Wheezy. Update Manager suggest to install kernel update. After update, I reboot system but instead of listing all the kernels (bootloader), it gave me a GRUB command prompt: ...
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3k views

Perf samples too long, lowering kernel.perf_event_max_sample rate to

My machine freezes from time to time and I can get it working back by pressing the space key. I have this problem since two weeks now, but it was just once per day max. Now it's starting to be many ...
2
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0answers
105 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
236 views

How to stop jbd2 to release a device

In an AWS EC2 instance, we have multiple EBS volumes. When I try to detach any of them, the umount command works, but the device can't be detached. # grep -c xvdj /proc/mounts 0 However, lsof ...
2
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0answers
74 views

Making hardware profiles for Linux installation

So, I've got a ArchLinux installation on /dev/sda11, and I've imported it into VirtualBox using raw host partitions. Right now, I can boot it both directly and through VirtualBox. The problem is the ...
2
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0answers
920 views

Ubuntu Natty: 32-bit userland, 64-bit kernel?

I'm trying to manually install a 64-bit kernel for 32-bit Ubuntu. I have my reasons for doing so, but they're too complicated to explain here. Prior to Natty, this worked fine. Now, on Natty, I get ...
2
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0answers
797 views

How to change hdd read error timeout?

I'm recovering data from an hdd using ddrescue. With "retry" disabled, it takes roughly 30 seconds for every unreadable sector. The hdd has tens of thousands of bad sectors and the process is taking ...
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0answers
55 views
+50

Windows 8.1 64bit Kernel-Power 137 Error

I'm at the moment encountering a problem with my windows 8.1 64bit Version. Some days ago I realised that it takes longer than usual to start the computer or wake it up, in fact, the computer seems ...
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0answers
29 views

What exactly does acpi_backlight=vendor do

I have an issue when booting Linux with a device plugged to USB 3.0. If there is anything plugged (USB stick, keyboard, …), the system hangs on start with blank screen and does not react even on ...
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0answers
17 views

Restore [non-boot drive] root directory from kernel image

Accidentally overwrote the root directory on a 2nd drive, .. but the subdirectories are still there [i.e. cd to a subdirectory drive is successful]. Problem is, the root directory in the partition is ...
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0answers
16 views

ethernet port is not detected in freescale MPC8569 board after kernel updrade

I have a freescale MPC8569 embedded board. previously, I put linux version 2.6.32 on it and all interface connected to processor are working properly. Now, I upgraded my linux version to 3.10 and now ...
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0answers
33 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 ...
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0answers
70 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 ...
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0answers
39 views

Y-E DATA FlashBuster-U is not working with Ubuntu kernel

I'm using the latest Ubuntu kernel. And I can't use it at all I just get these buffer IO errors - usb 3-3: new full-speed USB device number 3 using ohci-pci usb 3-3: New USB device found, ...
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0answers
126 views

How to keep Linux kernel responsive while having high memory usage?

Sometimes I have a lot of programs running and despite of 16GB 8GB of memory my ubuntu linux 14.04 LTS turns out to be not responsive at all. I won't be able to get a TTY to kill some processes to ...
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0answers
21 views

linux-headers and images in ubuntu after installing vmware-tools

a noob question. Can I run dist-upgrade for linux-headers and images in ubuntu after installing vmware-tools? I ask this because i think vmware-tools also install something like a header and image ...
1
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0answers
126 views

Thinkpad Yoga “Disk I/O Error” (Linux)

My machine is sporadically remounting the SDD readonly due to a "Disk I/O Error". This seems only to happen when I connect to the laptop to a power source or after resuming from suspend. The SSD ...
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0answers
20 views

PCI configuration method error (Linux Kernel)

(I'm not sure if here is the best place for that question, so I will be pleased if anyone suggests me a more proper forum for that.) I'm trying to install Ubuntu 12.04.4 in a netbook (from an usb), ...
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0answers
181 views

Debugging linux kernel, SIGKILL

Trying to debug linux kernel (vmlinux) with gdb during my education, but after I run kernel I just got "program terminated with SIGKILL": gdb vmlinux-3.11.0-12-generic ...GDB header... Reading ...
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0answers
38 views

Debugging not-loading Windows XP x64

The question is related to this one: Windows XP x64 hangs at welcome screen. So I want to debug WinLogon.exe through Windows Kernel-Debugger remotely using an 1394 (Fire Wire) port on the system asked ...
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0answers
265 views

Syslogd: hardware error

The machine has been sending these messages to the terminal, paired with beeps from the speaker on the motherboard. These messages appear every 5 minutes, sometimes naming CPU2, sometimes CPU3. ...
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0answers
289 views

how to resolve kernel_security_check_failure

I am trying to re-install my Nokia-E5 software by Nokia suite ,I have windows-8.1 OS on my laptop , I am getting this error kernel_security_check_failure . And my laptop restarts. I have no idea how ...
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0answers
1k views

What does this mean: considerRebuildOfPrelinkedKernel prebuild rebuild has expired

A line I accidentally spotted in system.log on MacOS X 10.9.1 when I connected an external USB webcam for the first time ever.... Subsequent connects to the usb port did not produce this message ...
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0answers
7 views

How to approach searching for sources of interface unresponsiveness

On Debian Linux: On a relatively powerful machine I ran an update and both the kernel and the window manager got updated to newer version. At that point the machine become noticeably less responsive: ...
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0answers
89 views

linux + squashfs-tools for red-hat 5.3

I want to install the squashfs-tools-4.0-5.el6.i686.rpm But I have the following dependencies ( after RPM installation ) please advice what the additional packages that I need to install on my linux ...
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0answers
136 views

Linux kernel 3.9 new storage features howto?

Linux kernel 3.9 has been released, which brings new features for storage cache devices (dm-cache), as well as BTRFS RAID 5/6. These features are undoubtedly sexy, but are all but completely ...
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0answers
109 views

-kernel option like in QEMU for BOCHS

I am working on creating my own kernel using C/Asm. I have always used QEMU as my emulator mainly because I can specify -kernel and it boots the kernel directly without a boot loader. I wish to switch ...
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0answers
422 views

How to find whether setcap is supported in Linux

I have a libpcap based application. Now, to allow non-root users to use my app, during installation , i use setcap setcap cap_net_raw=ep /bin/myapp But, in case the Linux Distro on which i install ...
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0answers
336 views

USB Mass storage driver as CDROM in Windows & MAC

I am in the process of enumerating a Hybrid ISO image which will show up as CDROM in Windows & MAC and encountered with the following problem. Hybrid ISO image is created with the following ...
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0answers
117 views

Ubuntu alternate install CD kernel modules

I'm using Ubuntu alternate install CD to customize the installation process. I have a hardware that uses Realtak 8188CE chipset for wireless network. If I boot into a LiveCD environment I can connect ...
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0answers
233 views

Syslogd kernel:code:

While running some experimental Java code which interacts with a MySQL server, I received these messages and then the server crashed: Message from syslogd@localhost at Jun 20 20:04:12 ... ...
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0answers
358 views

ARM Linux kernel debugging on AT91SAM9261

I have ported Linux to AT91SAM9261 board, I have compiled my own Bootstrap, Uboot, Kernel and filesystem. Now I want to debug my Linux kernel 2.6.30 using KGDB and GDB. I have host with Ubuntu ...
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0answers
2k views

Packet drop measured by ethtool, tcpdump and ifconfig

I have a question regarding packet drops. I am running a test to determine when packet drops occur. I'm using a Spirent TestCenter through a switch (necessary to aggregate Ethernet traffic from 5 ...
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0answers
7 views

How can I debug OSX memory card events

I am trying to get kernel messages for memory card insertion - removal, but i don't get logs. I issue the command "tail -f /var/log/kernel.log" So i need to know how to increase kernel log level to ...
0
votes
0answers
4 views

Recompile kernel to add user process kick confirmation

my apologies if this has already been asked. This is a combination development/admin/security question. My apologies if this question is being asked in the wrong forum. On Windows platforms, even ...
0
votes
0answers
31 views

Where to copy kernel source after kernel is compiled from sources?

On my linux box (Mint 17.1) I compiled the kernel from sources so that I could enable certain things that are not there by default. The kernel compiled fine and the system boots/works just fine. ...
0
votes
0answers
45 views

Can't flash openwrt kernel on Mikrotik Routerboard 750

Im trying to flash OpenWRT onto Mikrotik RouterBOARD 750 and Im having some difficulties when trying to flash kernel. Im running OpenWrt form RAM right now. Even though, I erased kernel beforehand, ...
0
votes
0answers
7 views

How can I see the currently installed netfilter hooks?

Not just the iptables, is it possible to see the currently installed netfilter hooks in Linux PC? Such as the home-made kernel modules that installs netfilter hooks for someone's own filtering rule?
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0answers
9 views

How to set sysfs.conf for EDAC kernel module

I want to set parameter for the following EDAC settings files: /sys/module/edac_core/parameters/edac_mc_panic_on_ue /sys/module/edac_core/parameters/edac_pci_panic_on_pe But before I set any ...
0
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0answers
85 views

How to understand and debug USB issues with Linux

I’m having an odd problem with a cheap "reverse USB hub" —not sure what the technical name might be— named a Tek Republic TUS-200 USB Sharing Switch. it has one USB port for devices, and ...
0
votes
0answers
12 views

cpusets compiled in kernel but not visible when running

Device: radxa ( 4-core ARM ) the official kernel from radxa is used with the ubuntu 14.04 rootfs : https://github.com/radxa/linux-rockchip.git. As cpusets where not enabled in def_config, i enabled ...
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votes
0answers
49 views

How to find what is causing a Kernel EventTracing error in the Event Log?

I am troubleshooting a Kernel EventTracing "session failed to start with the following error: 0xc0000011" that pops up too many times in my event log. Every solutions I found in google were very ...
0
votes
0answers
46 views

linux kernel starting issue (file system corrupted) on nand flash memory

please look at here for the trace. To make it short : I need a way to erase flash memory (Root file system) on my arm device to be able to install a linux kernel + file system again. So, let me ...
0
votes
0answers
23 views

How to limit max RAM usage of a process in kernel 3.13

I am trying to limit the max RAM used by a process in using kernel 3.13.0-43-generic in ubuntu Ubuntu 14.04.1. I would like to set this system wide, but as this doesn't work I have been trying it ...
0
votes
0answers
26 views

Console outputs kernel error AudioSysctl

Since Yosemite my console app logs this twice a second: kernel: AudioSysctl: (0) It's insane. Since I can't find anything about it in the internet, how would I try to get to the bottom of this (and ...
0
votes
0answers
127 views

Random system halt (no BSOD) due to watchdog

I have a Sony SVE15118FG laptop running windows 8.1 that has been doing me well however recently it has started while gaming randomly shutting off. I'm referring to an immediate power off followed by ...
0
votes
0answers
276 views

How can I fix kernelevent tracing, error 0xc0000035?

I have noticed several kernelevent tracing errors in event viewer. The code is always 0xc0000035 and event ID is always 2. Session "HomeGroupLog" failed to start with the following error: 0xC0000035 ...
0
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0answers
348 views

WIN8_DRIVER_FAULT - BSoD

I've since fixed this issue, although I'm now running into another issue. Please see my new thread: NVIDIA; Whea_Uncorrectable_Error I'm currently facing a slight issue. Whenever starting a ...
0
votes
0answers
14 views

Kernel Panic on funtoo

I'm having a lot of kernel panic problems on my funtoo system. I don't know exactly why it happens, I'm afraid that it's happing because of my processor which is a intel i7 which uses ivybridge... so ...
0
votes
0answers
21 views

Alcatel 918D kernel (Frame buffer console) compilation error

Hi i've been trying to compile the Alcatel 918D kernel with the framebuffer console driver, but I get this error. Can anyone help, Originally the procedure I followed was for a Samsung mobile which ...