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High process latencies due to MPC5200 FEC hard- soft-irq processing
Hello, we realized, that multiple ping floods (ping -f) can cause very large high-priority process latencies (up to a many seconds) on a MPC5200 PowerPC system with FEC NAPI support. The latencies are measured with # cyclictest -p 80 -n The problem is that processing of the ICMP pakets in the Hard-Irq and ... 13 Jul 2010 09:47
CFQ: Don't store left slice when slice used up or for a idle workload
Gui Jianfeng <guijianfeng(a)> writes: It doesn't make sence to store left time slice for an idle workload or for the cfqq that uses up its slice. Did you actually observe any problems? As I understand it, if you overrun your slice you get a negative offset, so I think we want to keep that. ... 14 Jul 2010 09:51
trivial typo fix
Davidlohr Bueso wrote: Fix trivial typo in code comment (change adn for and), also change comment style for proper coding style. Thanks, Davidlohr Signed-off-by: Davidlohr Bueso <dave(a)> Acked-by: Edward Shishkin <edward.shishkin(a)> --- include/linux/reiserfs_fs.h | ... 13 Jul 2010 09:47
rt2x00: slow wifi with correct basic rate bitmap (was Re: stable? quality assurance?)
Alejandro Riveira Fern´┐Żndez wrote: I for one stopped booting into -rc kernels. The fact that still have to patch my kernels with a *one* liner since 2.6.29 kernel [1] does not give me confidence on the "test report/bisect and it will be fixed" promise some have made in this threath [1] http... 13 Jul 2010 15:20
acerhdf.c - unsupported notebook
From: Branislav Gajdos <brianzee(a)> Date: Tue, Jul 13, 2010 at 01:44:38PM +0200 +Peter +lkml I'm not sure if you're the right person to write to but my linux kernel ( outputs this line while booting: acerhdf: unknown (unsupported) BIOS version Acer/Aspire 3810T/V1.04, please repo... 16 Jul 2010 18:46
kbuild: setlocalversion should respect srctree param when looking for auto.conf
On 07/13/2010 11:34 AM, Martin Jansa wrote: * it works properly only when CWD == scrtree * with this patch: jama src # /usr/src/linux/scripts/setlocalversion /usr/src/linux -JaMa-00001-g18672de * without: jama src # /usr/src/linux/scripts/setlocalversion /usr/src/linux Error: kernelrelease ... 13 Jul 2010 13:07
IPVS scheduler algorithms (was: [PATCH] ipvs: Kconfig cleanup)
On Sun, Jul 11, 2010 at 07:15:21PM -0500, Ismael Luque Valencia wrote: Hi my name is Ismael, I am doing a paper about lvs algorithms but I dont undernstand two of them Locality-Based Least-Connection and Locality-Based Least-Connection with Replication Someone, who can explain me that algorithms please I... 13 Jul 2010 08:42
SCSI: Support Type C RAID controller
1. To support Type C RAID controller, ACB_ADAPTER_TYPE_C, i.e. PCI device ID: 0x1880. Signed-off-by: Nick Cheng< nick.cheng(a) > --- ... 13 Jul 2010 08:42
[PATCH][RT] futex: protect against pi_blocked_on corruption during requeue PI -V2
On Tue, 13 Jul 2010, Thomas Gleixner wrote: This code causes braindamage. I really wonder whether we need to remove it according to the "United Nations Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment". Ok, finally managed to twist my brain around it. Mike, ca... 13 Jul 2010 08:41
usb gadget on zaurus and kexec
Hi! Dumping out the registers of the two situations and doing a comparison then might be a quick way. Any debugging update on this? Yeah, there's a workaround. Cyril's working on a proper fix, but that might take some time. Simply -- UP2OCR is misconfigured. That's qu... 13 Jul 2010 14:14
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