Re: gfp_flag

2015-09-13 Thread Ronit Halder
Sorry, it is gfp_mask not gfp_flag. On Sep 14, 2015 9:51 AM, "Greg KH" wrote: > On Mon, Sep 14, 2015 at 09:03:53AM +0530, Ronit Halder wrote: > > In drivers/staging/android/ion/ion.c in line 1475 and 1493 gfp_flag > > is set to -1 > > No, that's not what the code does, please read it again. > >

Re: Advice on Linux Kernel Development

2015-09-13 Thread Abhishek bist
Hi , It is generally recoomended to not to do the kernel development with virtual box and especially dealing with the device drivers. On 14 September 2015 at 09:37, Mayur Patil wrote: > [image: Boxbe] This message is eligible > for Automatic Cleanup! (linuxcr

Re: gfp_flag

2015-09-13 Thread Valdis . Kletnieks
On Sun, 13 Sep 2015 21:21:35 -0700, Greg KH said: > On Mon, Sep 14, 2015 at 09:03:53AM +0530, Ronit Halder wrote: > > In drivers/staging/android/ion/ion.c in line 1475 and 1493 gfp_flag > > is set to -1 > > No, that's not what the code does, please read it again. My guess is it's making some othe

Re: gfp_flag

2015-09-13 Thread Greg KH
On Mon, Sep 14, 2015 at 09:03:53AM +0530, Ronit Halder wrote: > In drivers/staging/android/ion/ion.c in line 1475 and 1493 gfp_flag > is set to -1 No, that's not what the code does, please read it again. greg k-h ___ Kernelnewbies mailing list Kerneln

Re: Advice on Linux Kernel Development

2015-09-13 Thread Mayur Patil
Thanks Valdis for clear explanation. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

Re: Advice on Linux Kernel Development

2015-09-13 Thread Mayur Patil
Hi, I am using Reliance 3 (Netconnect+) Dongle..and with lots of tries, I have finally stopped trying to install it on CentOS 6.x. I have tried almost all instructions from posts and blogs which appears on first 2 pages of Google search. On Mon, Sep 14, 2015 at 8:57 AM, Karthik Nayak wrote

gfp_flag

2015-09-13 Thread Ronit Halder
In drivers/staging/android/ion/ion.c in line 1475 and 1493 gfp_flag is set to -1 what are these lines doing? regards, Ronit ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

Re: Advice on Linux Kernel Development

2015-09-13 Thread Karthik Nayak
On Sun, Sep 13, 2015 at 11:40 PM, Mayur Patil wrote: > hi all, > > I want to ask > > if I want to get started with Linux Kernel Development then is it feasible > that > > I can do all my experiments on Virtual Machine as on Linux my Internet > dongle does > > not work, I am asking in terms of perf

Re: Advice on Linux Kernel Development

2015-09-13 Thread Valdis . Kletnieks
On Sun, 13 Sep 2015 23:40:22 +0530, Mayur Patil said: > if I want to get started with Linux Kernel Development then is it feasible > that > I can do all my experiments on Virtual Machine as on Linux my Internet > dongle does not work, I am asking in terms of performance and efficiency. A very la

Re: Advice on Linux Kernel Development

2015-09-13 Thread Manavendra Nath Manav
Yes you can. On Sun 13 Sep, 2015 23:40 Mayur Patil wrote: > hi all, > > I want to ask > > if I want to get started with Linux Kernel Development then is it feasible > that > > I can do all my experiments on Virtual Machine as on Linux my Internet > dongle does > > not work, I am asking in terms

Advice on Linux Kernel Development

2015-09-13 Thread Mayur Patil
hi all, I want to ask if I want to get started with Linux Kernel Development then is it feasible that I can do all my experiments on Virtual Machine as on Linux my Internet dongle does not work, I am asking in terms of performance and efficiency. Looking for guidance, Thanks ! -- *Mayur S

Re: Help debugging linux-next.

2015-09-13 Thread Valdis . Kletnieks
On Sun, 13 Sep 2015 14:09:21 -0300, Lucas Tanure said: > I would like some tips about how debug a issue with linux-next. > I'm trying to find things to do in kernel, and the first thing is boot the > linux-next tree. > How I can find the commit that create the problem, since every commit that > I

Re: Help debugging linux-next.

2015-09-13 Thread Lucas Tanure
I'm tried to compile a few older commits and run, but none of them boot and I can't get the status of the issue. -- Lucas Tanure +55 (19) 988176559 On Sun, Sep 13, 2015 at 2:24 PM, Raul Piper wrote: > I m a newbie.is there a doc which developers follow for using > git-bisect.google misleads !!

Re: Help debugging linux-next.

2015-09-13 Thread Raul Piper
I m a newbie.is there a doc which developers follow for using git-bisect.google misleads !! On Sep 13, 2015 10:50 PM, "leo kirotawa" wrote: > git bisect would be a choice. > Seems your issue is around i915, that is related to intel graphics, > isolate commits in this area would be another way > >

Re: Help debugging linux-next.

2015-09-13 Thread leo kirotawa
git bisect would be a choice. Seems your issue is around i915, that is related to intel graphics, isolate commits in this area would be another way On Sun, Sep 13, 2015 at 2:09 PM, Lucas Tanure wrote: > Hi, > > I would like some tips about how debug a issue with linux-next. > I'm trying to find

Help debugging linux-next.

2015-09-13 Thread Lucas Tanure
Hi, I would like some tips about how debug a issue with linux-next. I'm trying to find things to do in kernel, and the first thing is boot the linux-next tree. I'm able to compile the source, but when I boot I got a black screen a few times, or a just a warn in dmesg. I'm trying to understand th

Re: What's the difference between /proc/vmcore and /proc/kcore ?

2015-09-13 Thread Dave Hylands
My take on it is that /proc/kcore is a mapping of the raw virtual memory, so it looks like a humungous sparse file. /proc/vmcore is a ELF-formatted version of the same thing which would be more suitable for storing on a hard-drive. On Sun, Sep 13, 2015 at 6:30 AM, Lucas Tanure wrote: > Hi, > >

What's the difference between /proc/vmcore and /proc/kcore ?

2015-09-13 Thread Lucas Tanure
Hi, What's the difference between /proc/vmcore and /proc/kcore ? Thanks -- Lucas Tanure ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

Re: When to use threaded interrupts?

2015-09-13 Thread Rami Rosen
Kosta, This kernel and older ones include device drivers which use threaded IRQs (call request_threaded_irq(), etc). For example, many of the driver under drivers/input/touchscreen are using threaded IRQs: Following link is from kernel 3.18: http://lxr.free-electrons.com/source/drivers/input/touc