Re: [PATCH lttng-modules] Fix: bump stable kernel version ranges for clock work-around

From: Mathieu Desnoyers
Date: Thu Oct 13 2016 - 11:09:23 EST

----- On Oct 13, 2016, at 5:00 PM, Greg Kroah-Hartman gregkh@xxxxxxxxxxxxxxxxxxx wrote:

> On Thu, Oct 13, 2016 at 03:56:55PM +0200, Mathieu Desnoyers wrote:
>> Linux commit 27727df240c7 ("Avoid taking lock in NMI path with
>> CONFIG_DEBUG_TIMEKEEPING"), changed the logic to open-code
>> the timekeeping_get_ns() function, but forgot to include
>> the unit conversion from cycles to nanoseconds, breaking the
>> function's output, which impacts LTTng.
>> We expected Linux commit 58bfea9532 "timekeeping: Fix
>> __ktime_get_fast_ns() regression" to make its way into stable
>> kernels promptly, but it appears new stable kernel releases were
>> done before the fix was cherry-picked from the master branch.
> Sorry, will go queue that up now...

Thanks Greg! :)


Mathieu Desnoyers
EfficiOS Inc.