[OE-core] [PATCH 1/2] lttng-modules: Update revision to grab last bugfix releases

[Otavio Salvador]

On Thu, Nov 14, 2013 at 3:15 PM, Bruce Ashfield
<bruce.ashfield at gmail.com> wrote:
> On Thu, Nov 14, 2013 at 11:18 AM, Bruce Ashfield
> <bruce.ashfield at gmail.com> wrote:
>> On Thu, Nov 14, 2013 at 11:09 AM, Saul Wold <sgw at linux.intel.com> wrote:
>>> On 11/13/2013 07:08 PM, Bruce Ashfield wrote:
>>>>
>>>> On Wed, Nov 13, 2013 at 8:45 PM, Otavio Salvador
>>>> <otavio at ossystems.com.br> wrote:
>>>>>
>>>>> On Wed, Nov 13, 2013 at 7:54 PM, Saul Wold <sgw at linux.intel.com> wrote:
>>>>>>
>>>>>> On 11/01/2013 06:31 AM, Otavio Salvador wrote:
>>>>>>>
>>>>>>>
>>>>>>> This updates lttng-modules for 2.3.2 and also includes a bugfix
>>>>>>> imported from 3.4 kernel. The changes included are:
>>>>>>>
>>>>>>> 6c26b01 Blacklist Linux kernels 3.10+
>>>>>>> b97d469 LTTng trace-clock: shrink kernel blacklist
>>>>>>> 7d40f8e Version 2.3.1
>>>>>>> 2aecb9b Blacklist kernels 3.10.13 and 3.11.2
>>>>>>> 4f1217f Version 2.3.2
>>>>>>> 92fff0c Import fix from LTSI: 3.4+ RT kernels use
>>>>>>> CONFIG_PREEMPT_RT_FULL
>>>>>>> 1874075 lttng-statedump-impl: Fix lttng_list_interrupts for empty
>>>>>>> implementation
>>>>>>>
>>>>>>
>>>>>> Otavio,
>>>>>>
>>>>>> Tried to build this locally and got the following failure with
>>>>>> genericx86
>>>>>> and master:
>>>>>>
>>>>>> |   CC [M]
>>>>>>
>>>>>> /srv/ssd/sgw/builds/world/tmp/work/genericx86-poky-linux/lttng-modules/2.3.2+gitAUTOINC+1874075076-r0/git/lttng-ring-buffer-client-discard.o
>>>>>> | In file included from
>>>>>>
>>>>>> /srv/ssd/sgw/builds/world/tmp/work/genericx86-poky-linux/lttng-modules/2.3.2+gitAUTOINC+1874075076-r0/git/lttng-tracer.h:37:0,
>>>>>> |                  from
>>>>>>
>>>>>> /srv/ssd/sgw/builds/world/tmp/work/genericx86-poky-linux/lttng-modules/2.3.2+gitAUTOINC+1874075076-r0/git/lttng-ring-buffer-client-discard.c:24:
>>>>>> |
>>>>>>
>>>>>> /srv/ssd/sgw/builds/world/tmp/work/genericx86-poky-linux/lttng-modules/2.3.2+gitAUTOINC+1874075076-r0/git/wrapper/trace-clock.h:40:2:
>>>>>> error: #error "Linux kernels 3.10 and 3.11 introduce a deadlock in the
>>>>>> timekeeping subsystem. Fixed by commit
>>>>>> 7bd36014460f793c19e7d6c94dab67b0afcfcb7f \"timekeeping: Fix HRTICK
>>>>>> related
>>>>>> deadlock from ntp lock changes\" in Linux."
>>>>>> |  #error "Linux kernels 3.10 and 3.11 introduce a deadlock in the
>>>>>> timekeeping subsystem. Fixed by commit
>>>>>> 7bd36014460f793c19e7d6c94dab67b0afcfcb7f \"timekeeping: Fix HRTICK
>>>>>> related
>>>>>> deadlock from ntp lock changes\" in Linux."
>>>>>> |   ^
>>>>>> | make[2]: ***
>>>>>>
>>>>>> [/srv/ssd/sgw/builds/world/tmp/work/genericx86-poky-linux/lttng-modules/2.3.2+gitAUTOINC+1874075076-r0/git/lttng-ring-buffer-client-discard.o]
>>>>>> Error 1
>>>>>> | make[1]: ***
>>>>>>
>>>>>> [_module_/srv/ssd/sgw/builds/world/tmp/work/genericx86-poky-linux/lttng-modules/2.3.2+gitAUTOINC+1874075076-r0/git]
>>>>>> Error 2
>>>>>> | make[1]: Leaving directory
>>>>>> `/srv/ssd/sgw/builds/world/tmp/sysroots/genericx86/usr/src/kernel'
>>>>>> | make: *** [default] Error 2
>>>>>> | ERROR: oe_runmake failed
>>>>>>
>>>>>> So I am going to hold off on this patch set until you can resolve this.
>>>>>
>>>>>
>>>>> Yes; this is becase the linux-yocto seems to not have been updated to
>>>>>>
>>>>>> 3.10.13; so in fact it is failing to build to avoid people to
>>>>>
>>>>> trigger the deadlock.
>>>>>
>>>>> The change which introduces this in lttng-modules is:
>>>>>
>>>>>
>>>>> http://git.lttng.org/?p=lttng-modules.git;a=commit;h=2aecb9b1cbb63f6c524ad9195d8fd06299ef9296
>>>>>
>>>>> I can update this patch as 2.3.3 has been released and it includes the
>>>>> 3.12 fixes but please check when linux-yocto will be updated so we can
>>>>> fix it.
>>>>
>>>>
>>>> Saul: What board are you building ? I've had linux-yocto on 3.10.17
>>>> for over a week
>>>> now.
>>>
>>>
>>> As mentioned above this is for genericx86, so maybe not all the BSPs are
>>> updated yet.
>>
>> Buried in the context, sorry about missing that.
>>
>> Yes, I'm about to update the reference boards, but there's a install
>> error that I'm fixing first, but I'll have the series out by end of day.
>
> I just sent the update for this (cc'd poky at yoctoproject.org), but I haven't
> seen it loop around.
>
> If you didn't get the patch, let me know and I'll try again.

I have sent the new patch version.

It does the update to the 2.3.3 which include all the previous
backported patches.

This should be considered for Dora as well as it fixes the deadlock
and building with 3.12 kernels.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750