Bug#550862: general protection fault - swapper / dm_mod:clone_endio

Package: linux-image-2.6.26-2-amd64 Version: 2.6.26-19 Severity: important We're running into the following general protection fault whenever the machine is doing more than idling. The system boots from SAN using multipath-tools and friends, also ...

Message posted on the October 15th, 2009 - 7:16 PM ET

Swapper test: Compress/share multimedia files

If sending a photo via email is simpler then it sounds as you simply need to attach it to your message, things get more complicated when you want to send multiple photos. This is without forgetting videos that are of a larger size. In such cases, ...

Review published on the June 27th, 2007 - 4:57 AM ET

Kernel Panic on KVM Guests: "Scheduling while atomic: swapper''

I've started seeing kernel panics on a few of our virtual machines after moving them (qemu-kvm, libvirt) off of a box with two Intel Xeon X5650 processors (12 cores total) onto one with four AMD Opteron 6174 processors (48 cores total). What is odd ...

Message posted on the August 17th, 2011 - 11:50 PM ET

linux-3.6.11-rt30 smoke test on ARM

linux-3.6.11-rt30 builds and boots on some ARM boards (PandaBoard, Realview) for: - SMP, PREEMPT_RT_FULL - SMP, PREEMPT_NONE - UP, PREEMPT_RT_FULL - UP, PREEMPT_NONE The PandaBoard frequently fails to boot with an eth0 error. I have only seen ...

Message posted on the March 7th, 2013 - 11:20 PM ET

[PATCH -tip 0/4] tracing: make a snapshot feature available from userspace

Hi, Steven, This patch series make a snapshot feature available from userspace via debugfs. (But I know that you are working for multi-buffer. If these patches collide with your work much, I will resubmit my patches after that. What would you ...

Message posted on the October 2nd, 2012 - 4:20 AM ET

A quick view of the performance benchmark for semaphore-like and mutex

Just as a quick & rough test, with below changes based on mutex (almost the same as semaphore): /home/dennis/Linux/linux-3.3.2-sem/kernel/mutex.c 2012-04-17 14:59:49.823177615 +0800 +++ ./mutex.c 2012-04-17 17:00:12.963059284 +0800 @@ ...

Message posted on the April 17th, 2012 - 5:40 AM ET

[Patch] Idle balancer: cache align nohz structure to improve idle load balancing scalability

Idle load balancing makes use of a global structure nohz to keep track of the cpu doing the idle load balancing, first and second busy cpu and the cpus that are idle. This leads to scalability issue. For workload that has processes waking up and ...

Message posted on the October 19th, 2011 - 5:50 PM ET

general protection fault on ttm_init()

Hi Thomas, I got this error while running kvm boot tests on linux-next. Attached is the kconfig. [ 7.064962] [drm:drm_core_init] *ERROR* Cannot create /proc/dri [ 7.067443] general protection fault: 0000 [#1] PREEMPT [ 7.068713] CPU 0 [ ...

Message posted on the July 6th, 2012 - 10:50 AM ET

PROBLEM: [BISECTED] 2.6.35.5 xen domU panics just after the boot

Hello, kernels 2.6.35.5 and 2.6.32.22 xen domU panics at the very begining of the boot process. I have bisected it to a single commit, and the first bad commit is: [fb412a178502dc498430723b082a932f797e4763] xen: use percpu interrupts for IPIs and ...

Message posted on the September 21st, 2010 - 3:40 PM ET

BUG: No init found on NFSROOT

Hi Trond, It's found that this commit in linux-next leads to the below boot hang. da660bb2774ff21c7263b4061198c5abe0629cb4 is the first bad commit commit da660bb2774ff21c7263b4061198c5abe0629cb4 Author: Trond Myklebust ...

Message posted on the June 26th, 2012 - 11:00 AM ET

[PATCH v2 0/8] KGDB/KDB FIQ (NMI) debugger

Hi all, Here is v2 for the KGDB FIQ debugger, the changes include: - Per Colin Cross' suggestion, we should not enter the debugger on any received byte (this might be a problem when there's a noise on the serial line). So there is now an ...

Message posted on the July 13th, 2012 - 6:20 AM ET

lockdep false positive? -- firewire-core transaction timer vs. scsi-core host lock

Hi, I just saw the following (twice, with a reboot in between) with kernel 2.6.35 plus firewire driver patched to their state in 2.6.36-rc1, i.e. basically with a kernel according to commit e78483c5. I suspect it might also happen without firewire ...

Message posted on the August 16th, 2010 - 2:50 PM ET

[PATCH] powerpc: use local var instead of local_paca->irq_happened directly in __check_irq_replay

local_paca->irq_happened may be changed asychronously. In my test env (IBM Power 9117-MMA), I installed the RHEL6.2 with the shipped oprofile. Then I run into kernel v3.4-rc4, setup/start oprofile and start the LTP test suite. In a short while, ...

Message posted on the May 2nd, 2012 - 10:00 PM ET

kernel 3.7.6, l2tp, qdisc_tx circular locking

Hello, I was running l2tp connections with accel-ppp as test, and got this: Nothing unusual in kernel, x86_64, 2 CPU, gentoo, gcc 4.6.3 If you need more information - let me know please. [ 7575.690820] [ 7575.690834] ==[ 7575.690850] [ INFO: ...

Message posted on the February 11th, 2013 - 7:40 AM ET

test swapper