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

[Otavio Salvador]

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.

Regards,


-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
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