Re: Query on USB related debugging

I am guessing may be the particular interrupt is disabled at the GIC level ? I guess best would to do a GIC registers dump and see if the interrupts are pending at the GIC level something of that sort. But best would be to check from GIC perspective. Also see if there is any low power mode that is

Re: The limit of kernel memory in 64bit system

Sorry Yiqun, I was thinking of virtual memory so you are correct. I also haven't looked into the kernel memory subsystem(s) in a while so I may be a little behind in my knownledge of them. Regards Nick On 2014-11-29 03:54 PM, Yiqun Chen wrote: > Incorrect. The 64 bit machine theoretically suppor

Re: Error in compiling Linux kernel after creating hello world system call

On Sat, 29 Nov 2014 18:43:48 +0530, Jackson Isaac said: > core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ hello Depending where your .c is, this needs to be either hello/ or hello.o (And if it's hello/, then hello/Makefile needs to reference hello.o) pgp5zib9XCHA9.pgp Description: PGP

Re: The limit of kernel memory in 64bit system

Incorrect. The 64 bit machine theoretically supports 2 ^ 64 bytes virtual memory space but on x86 only 48 out of 64 address buses are used. So we cannot assume the upper limit of physical space.on different platforms. And Nick you're confusing with the physical and virtual memory. The usage of memo

Re: The limit of kernel memory in 64bit system

J.Hwan, There is a limit as 64 bit can only support 16 extabytes. Greg is right in that there is no real limit on modern machines because of this. However from my knowledge, system ram is split into a 3 to 1 ratio, where 75 percent is for user space and the only quarter is for the kernel's memo

Re: The limit of kernel memory in 64bit system

On Sat, Nov 29, 2014 at 12:25:43AM +0900, J.Hwan Kim wrote: > Hi, everyone > > As far as I know, the kernel memory limit is 1GB in 32bit system. > Is it also applicable to 64bit system? > What's the limit of kernel memory in 64bit system? There is no limit :) What do you really want to know this

Re: Error in compiling Linux kernel after creating hello world system call

On Sat, 2014-11-29 at 18:43 +0530, Jackson Isaac wrote: > I am trying to write hello world system call in linux but I am > encountering the following error when I run 'sudo make': Why "sudo"? That can't be right! > ... > AR arch/x86/lib/lib.a > LINKvmlinux > LD vmlinux.o > l

Error in compiling Linux kernel after creating hello world system call

Hi everyone, I am trying to write hello world system call in linux but I am encountering the following error when I run 'sudo make': ... AR arch/x86/lib/lib.a LINKvmlinux LD vmlinux.o ld: cannot find hello: File format not recognized make: *** [vmlinux] Error 1 I have Linux

Re: Split RAID: Proposal for archival RAID using incremental batch checksum

On Thu, Nov 27, 2014 at 12:50 PM, Anshuman Aggarwal wrote: > On 25 November 2014 at 10:26, Greg Freemyer wrote: >> >> >> On November 24, 2014 12:28:08 PM EST, Anshuman Aggarwal >> wrote: >>>On 24 November 2014 at 18:49, Greg Freemyer >>>wrote: > Also if I don't store the metadata on

Query on USB related debugging

Hello, I have an embedded device with a Freescale ARM Cortex A5 processor, running the 3.18-rc5 kernel. I have a problem where using the Ethernet over USB client stops functioning after a while. If I set the IP of the usb0 interface and try to ping the device from the host or vice versa, it wor

The limit of kernel memory in 64bit system

Hi, everyone As far as I know, the kernel memory limit is 1GB in 32bit system. Is it also applicable to 64bit system? What's the limit of kernel memory in 64bit system? Thanks in advance Regards, J.Hwan Kim ___ Kernelnewbies mailing list Kernelnewbie

Re: Split RAID: Proposal for archival RAID using incremental batch checksum

On 25 November 2014 at 10:26, Greg Freemyer wrote: > > > On November 24, 2014 12:28:08 PM EST, Anshuman Aggarwal > wrote: >>On 24 November 2014 at 18:49, Greg Freemyer >>wrote: >>> >>> >>> On November 24, 2014 1:48:48 AM EST, Anshuman Aggarwal >> wrote: Sandeep, This isn't exactly RAID

[eudyptula] has anyone received a gift after completing the challenge ?

Hi all, I have finished the challenge some month ago and wonder if somebody has received something from the Linux Foundation ? :-) Thanks Denis ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinf

Re: Your editor/IDE settings for autocompletion and other easiness

Hi, I currently use VIM with tons of plugins. I think the plugin youcompleteme handles auto-complete in vim to a certain extent and i find it useful. I also use other plugins like Nerdtree for easier navigation, fugitive vim for git integration . Of course, i also use CTAGS and CSCOPE . Thanks an

The kernel memory limit of 64bit system

Hi, everyone How much is the kernel memory limit of 64 bit system? As far as I know, int 32 bit system the kernel memory limit is 1GB. Is it also applicable to 64bit system? Thanks in advance Regards, J.Hwan Kim ___ Kernelnewbies mailing list Kerneln

Re: Not getting printk output

Use pr_info() or pr_err() for getting it printed definitely as suggested. The caveat with pr_debug() is that, messages will only be printed in case you have dynamic debug control for that file enabled.(same goes with printk(KERN_DEBUG ). On Sun, Nov 23, 2014 at 6:49 PM, karthik nayak wrote: >