Re: New member queries..

2012-10-22 Thread Dave Hellewell
On 23/10/12 08:25, Greg Freemyer wrote: > I quick search for ext4 todo found this "Relatively simple ext4 todo item": > > http://marc.info/?l=linux-ext4&m=128294436026631&w=2 > > It's a couple months old, but I don't see a reply in marc.info, so > likely no one picked it up. A couple of years ac

Re: Regarding the Kernel Configuration Options

2012-10-22 Thread Rohan Puri
On Tue, Oct 23, 2012 at 8:48 AM, supratim chakraborty wrote: > I was looking for some resources on the explanation on all (or even some > for that matter) kernel configuration options that come up in the pre- > compilation phase (make menuconfig ) . I looked over but couldnt find such > a guide >

Re: online, possible and disabled cpus

2012-10-22 Thread Robert P. J. Day
On Mon, 22 Oct 2012, Srivatsa Bhat wrote: > Hi, > > You might want to take a look at Documentation/cpu-hotplug.txt for > some details regarding online/possible CPUs... i'll do one more post on this, even though i never imagined it was going to get this complicated. to recap, what i'm trying to

Re: New member queries..

2012-10-22 Thread Greg Freemyer
On Mon, Oct 22, 2012 at 2:59 PM, Sarah Sharp wrote: > On Fri, Oct 05, 2012 at 01:16:43PM +0530, shampavman.cg wrote: >> Hi Guys, >> >> I'm new to linux kernel development (only a few hrs old i may say). I've >> been working with the solaris kernel from the past year and now would >> like to concen

Re: online, possible and disabled cpus

2012-10-22 Thread Robert P. J. Day
On Mon, 22 Oct 2012, Srivatsa Bhat wrote: > Hi, > > You might want to take a look at Documentation/cpu-hotplug.txt for > some details regarding online/possible CPUs... ah, quite so, although that file is definitely out of date. it doesn't mention the command-line parameters "nosmp" or "nr_cpus

Re: New member queries..

2012-10-22 Thread Sarah Sharp
On Fri, Oct 05, 2012 at 01:16:43PM +0530, shampavman.cg wrote: > Hi Guys, > > I'm new to linux kernel development (only a few hrs old i may say). I've > been working with the solaris kernel from the past year and now would > like to concentrate on linux as well. > "My area of expertise is Filesy

Re: online, possible and disabled cpus

2012-10-22 Thread Srivatsa Bhat
Hi, You might want to take a look at Documentation/cpu-hotplug.txt for some details regarding online/possible CPUs... Regards, Srivatsa S. Bhat ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listin

RE: online, possible and disabled cpus

2012-10-22 Thread Craig Jackson
> -Original Message- > From: kernelnewbies-boun...@kernelnewbies.org [mailto:kernelnewbies- > boun...@kernelnewbies.org] On Behalf Of Robert P. J. Day > Sent: Monday, October 22, 2012 12:47 PM > To: Kernel Newbies > Subject: online, possible and disabled cpus > > > at this point, i'm tr

online, possible and disabled cpus

2012-10-22 Thread Robert P. J. Day
at this point, i'm trying to rationalize why i'm seeing this in the output of dmesg: [0.00] smpboot: Allowing 16 CPUs, 8 hotplug CPUs on my quad-core asus laptop, as in -- where is that "16" coming from? if i list /proc/cpuinfo, i see 8 processors, so i'm just trying to understand what

Re: /proc/cpuinfo versus /proc/softirqs: how to properly count CPUs?

2012-10-22 Thread Robert P. J. Day
On Mon, 22 Oct 2012, Vijay Chauhan wrote: > On Mon, Oct 22, 2012 at 7:30 PM, Robert P. J. Day > wrote: > > > > poking around under /proc on my quad-core asus laptop and just > > noticed that while /proc/cpuinfo (properly) lists my 8 processors, > > /proc/softirqs instead lists 16, with the las

Re: /proc/cpuinfo versus /proc/softirqs: how to properly count CPUs?

2012-10-22 Thread Vijay Chauhan
On Mon, Oct 22, 2012 at 7:30 PM, Robert P. J. Day wrote: > > poking around under /proc on my quad-core asus laptop and just > noticed that while /proc/cpuinfo (properly) lists my 8 processors, > /proc/softirqs instead lists 16, with the last 8 having values of all > zeroes (not surprisingly). w

Re: some weird redundancy with a workqueue?

2012-10-22 Thread Filipe Rinaldi
On 19 October 2012 14:25, Sannu K wrote: > On Fri, Oct 19, 2012 at 6:42 PM, Robert P. J. Day > wrote: >> >> is there something i'm missing about the following snippet of code >> in drivers/acpi/osl.c? >> >> if (queue == kacpi_hotplug_wq) >> INIT_WORK(&dpc->work, acpi_os

/proc/cpuinfo versus /proc/softirqs: how to properly count CPUs?

2012-10-22 Thread Robert P. J. Day
poking around under /proc on my quad-core asus laptop and just noticed that while /proc/cpuinfo (properly) lists my 8 processors, /proc/softirqs instead lists 16, with the last 8 having values of all zeroes (not surprisingly). with the middle columns snipped for brevity, my /proc/softirqs shows

Re: creating own syscall on 2.6.37.3 and getting error on compilaton...

2012-10-22 Thread Filipe Rinaldi
On 22 October 2012 01:10, wrote: > Ah the kernel/sched directory was added in 3.3. I'm using 2.6.37.3. > > > -Tristan > On Sun, Oct 21, 2012 at 11:14:32PM +0100, Filipe Rinaldi wrote: >> On 21 October 2012 21:28, wrote: >> > I'm trying to implement my own system call on Linux kernel 2.6.37.3 u

Re: What rationale behind physical and virtual kernel memory layout ?

2012-10-22 Thread Arun KS
Hi Telenn, On Sat, Oct 20, 2012 at 12:48 AM, telenn barz wrote: > Hello Arun, > > Thanks for answering. > > On Fri, Oct 19, 2012 at 3:33 PM, Arun KS wrote: > >> >> On Fri, Oct 19, 2012 at 3:03 PM, telenn barz wrote: >> >>> >>> Q: In the 4G/4G split case, I don't see why we have to necessarily f