Re: [RFC][PATCH 06/11] sched: Fix trace_sched_switch()

From: Steven Rostedt
Date: Tue Sep 29 2015 - 12:30:18 EST


On Tue, 29 Sep 2015 17:48:28 +0200
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> /SHOULD/ being the operative word. Experience has taught me that
> changing the sched tracepoint leads to borkage.

Right. But experience also tells us that those relying on offsets will
get brokage if they run 32 bit userspace on a 64 bit kernel too.

>
> But we can sure try, see if someone notices etc.. Same with
> trace_sched_wakeup(), that still prints a dummy value.

Removing a field can break things that even use the parsing library.
That's why we still have that.

-- Steve
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