February 2017 - kernelnewbies@kernelnewbies.org

Re: Why amdgpu pro does not work on kernel 4.10?
by Ali Aminian Feb. 13, 2017

Feb. 13, 2017

Hello again. I just find out something weird. 1_ I typed make menuconfig 2_ I went to "general setup" and unchecked "Automatically append version information to the version string" 3_ recompiled and installed the new kernel and suddenly all problems are disappeared. I am wondering why this option causes problems.

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Re: Why amdgpu pro does not work on kernel 4.10?
by Ali Aminian Feb. 13, 2017

Feb. 13, 2017

Thank you for your response. It does not work means: 1_ I have downloaded amdgpu-pro driver from AMD website and installed it. 2_ I have compiled linux kernel 4.10 and 4.9 with oldconfig. 3_ then I booted to new kernel and see login screen is distorted. 4_ I tried to login but it loops back to login screen again. 5_ Ctrl Alt F1-F6 results in a blank screen. 6_ I sshed into the system and check if amdgpu is loaded by "lsmod | grep amd" and yes it is loaded. 7_ I uninstalled and installed amdgpu-pro again and i got dkms error and it refered me to /var/lib/dkms/amdgpu-pro/16.40-348864/build/make.log for further details. and here is the log file: DKMS make.log for amdgpu-pro-14.40-348864 for kernel 4.10.0-rc7+ (x86_64) Mon Feb 13 03:53:09 IRST 2017 LD /var/lib/dkms/amdgpu-pro/16.40-348864/build/built-in.o LD /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/built-in.o CC [M] /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/amdgpu_drv.o In file included from /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/backport.h:8:0, from <command-line>:0: /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/include/kcl/kcl_drm.h:68:72: error: operator '+' has no right operand && LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0) && (UBUNTU_BUILD_NUM < 36)) \ ^ In file included from /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/backport.h:9:0, from <command-line>:0: /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/include/kcl/kcl_ttm.h: In function ‘kcl_ttm_bo_reserve’: /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/include/kcl/kcl_ttm.h:109:9: error: too many arguments to function ‘ttm_bo_reserve’ return ttm_bo_reserve(bo, interruptible, no_wait, false, ticket); ^ In file included from /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/include/kcl/kcl_ttm.h:6:0, from /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/backport.h:9, from <command-line>:0: ./include/drm/ttm/ttm_bo_driver.h:875:19: note: declared here static inline int ttm_bo_reserve(struct ttm_buffer_object *bo, ^ In file included from /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/include/kcl/kcl_amdgpu.h:5:0, from /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../backport/backport.h:10, from <command-line>:0: /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../amdgpu/amdgpu.h: At top level: /var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/../amdgpu/amdgpu.h:37:25: fatal error: linux/fence.h: No such file or directory compilation terminated. scripts/Makefile.build:294: recipe for target '/var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/amdgpu_drv.o' failed make[4]: *** [/var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu/amdgpu_drv.o] Error 1 scripts/Makefile.build:553: recipe for target '/var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu' failed make[3]: *** [/var/lib/dkms/amdgpu-pro/16.40-348864/build/amd/amdgpu] Error 2 Makefile:1490: recipe for target '_module_/var/lib/dkms/amdgpu-pro/16.40-348864/build' failed make[2]: *** [_module_/var/lib/dkms/amdgpu-pro/16.40-348864/build] Error 2

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Why amdgpu pro does not work on kernel 4.10?
by Ali Aminian Feb. 12, 2017

Feb. 12, 2017

I was heard that amdgpu pro is user space driver and the kernel space part (amdgpu) is merged into Linux kernel. And that means amdgpu pro should work on all kernels above 4.3. But why amdgpu pro does not work on kernel 4.10?

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Re: Code Compilation
by Alexander Kapshuk Feb. 12, 2017

Feb. 12, 2017

On Sun, Feb 12, 2017 at 10:49 AM, Wasim Akram <wasim7702843288(a)gmail.com> wrote: > I want to organize my code C code , such as all header file in include > folder , all library file in lib folder , main file in src and compile > output should be generated in /bin . I am facing problem in code > compilation. > > On Sun, Feb 12, 2017 at 2:09 PM, Alexander Kapshuk > <alexander.kapshuk(a)gmail.com> wrote: >> On Sun, Feb 12, 2017 at 10:00 AM, Wasim Akram <wasim7702843288(a)gmail.com> wrote: >>> How to compile the code and get binary in bin folder , if hearder >>> files , library files and source file is present in include,lib,src >>> folders respectively ? >>> >>> -- >> >> Can you please give us more detail? >> >> What binary do you want compiled and put in what bin folder? Are you >> talking about the kernel binary? If so, 'make install' places it in >> /boot. >> Or are you asking about how to compile an out-of-tree kernel module? > > > > -- Please, do not top post. You have not answered the questions I asked in my previous email. What code are you trying to compile? Are you working on an out-of-tree kernel driver? Or are working on some kernel subsystem? Or are working on something else you want to be a part of the kernel code base?

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Code Compilation
by Wasim Akram Feb. 12, 2017

Feb. 12, 2017

How to compile the code and get binary in bin folder , if hearder files , library files and source file is present in include,lib,src folders respectively ? -- Thanks and Regards Wasim Akram Ph: 7702843288

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git send-email
by Tobin Harding Feb. 12, 2017

Feb. 12, 2017

When using git send-email all emails originating with myself have the word 'To' in the recipient field (in both mutt and web based email client). Single line as view in mutt; 8 F Feb 09 To David S. Mil (3.5K) ├─>[PATCH 4/4] net: Fix check git send-email command used ; $ git send-email \ --to="David S. Miller <davem(a)davemloft.net>" \ --cc="netdev(a)vger.kernel.org, linuk-kernel(a)vger.kernel.org" \ --cover-letter *.patch Am I using git incorrectly? $ cat ~/.gitconfig ... [sendemail] from = Tobin C. Harding <me(a)tobin.cc> smtpuser = ********* smtppass = ********* smtpserver = mail.messagingengine.com smtpencryption = tls smtpserverport = 587 confirm = auto ... thanks, Tobin.

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Re: error while sending mail using git send-email
by srishti sharma Feb. 11, 2017

Feb. 11, 2017

yes , I had created a gpg key . Thanks Regards On Sat, Feb 11, 2017 at 5:24 PM, Ozgur Karatas <mueddib(a)goosey.org> wrote: > Hello Srishti, > > did you create a GPG key? > > https://help.github.com/articles/generating-a-new-gpg-key/ > > Please run command gpg --list-keys: > > Example: > > $ gpg --list-keys > > -------------------------------- > pub 4096R/B3AFED6C 2016-11-29 > uid Ozgur Karatas <mueddib(a)goosey.org> > sub 4096R/920124C1 2016-11-29 > > pub 4096R/6092693E 2011-09-23 > uid Greg Kroah-Hartman (Linux kernel stable release signing key) <greg(a)kroah.com> > sub 4096R/76D54749 2011-09-23 > > Regards, > > Ozgur > > 11.02.2017, 14:43, "srishti sharma" <srishtishar(a)gmail.com>: >> Hi, >> >> I am able to send email using mail , but am unable to log into it . It >> is not giving me any errors , just says login failed . >> >> Regards, >> >> Srishti

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insmod error
by Madhu K Feb. 11, 2017

Feb. 11, 2017

Hi All, I have built a kernel module against a 4.9.2 for arm board. while inserting this kernel module I am getting below message which is high lighted in red color what exactly mean loading out-of-tree module. what could be the possible reason to get this message? Please help me out to understand below message mean. ubuntu@ubuntu-armhf:/home/Madhu/i2c$ dmesg [ 704.283100] i2c_client: loading out-of-tree module taints kernel. [ 704.285359] driver initialization [ 704.285693] inside probe function Regards, Madhu

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A question about priority search tree in kernel 2.6.24
by Hao Lee Feb. 11, 2017

Feb. 11, 2017

Hi, all Recently I'm reading "Professional Linux Kernel Architecture" while referencing the source code of kernel 2.6.24 and I have a question about priority search tree. In prio_tree_init function ( http://lxr.free-electrons.com/source/lib/prio_tree.c?v=2.6.24#L71) array index_bits_to_maxindex is initialized to 1,3,7,15,31...2^(i+1)-1. I don't know why it is initialized to these numbers and what is the relationship between index_bits_to_maxindex and prio_tree_root->index_bits. Could someone help me? Many Thanks! Regards, Hao Lee.

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Re: some info
by julien.lerouge Feb. 11, 2017

Feb. 11, 2017

Dear! I've been looking for something and I've come across that information, hope it helps you, check it out http://paolo.biddyelectric.com/efee Warm regards, julien.lerouge

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