Re: [PATCH 3/4] trace: add ability to collect call chain ofnon-current task.

[Peter Zijlstra]

On Mon, 2011-09-26 at 19:55 +0400, Andrew Vagin wrote:
> 
> Know issues:
> * Now call chains for non-current tasks are collected on x86 only,
>   but it may be done for other architectures simply.
> * It collects only kernel call chains, because we can't get direct
>   access to memory of other processes and this operation should be
>   fast enough. 

Also, it changes the semantics of tracepoint, normally you return the
callchain leading to the tracepoint, this changes that.


I'm not entirely against it, as I can see the use, but I would like to
solicit other opinions.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/