From: Michael Ellerman <mpe@ellerman.id.au>
To: Wolfram Sang <wsa@the-dreams.de>, Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
linux-renesas-soc@vger.kernel.org,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Rob Herring <robh+dt@kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Tyrel Datwyler <tyreld@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues
Date: Tue, 23 Jan 2018 23:11:18 +1100 [thread overview]
Message-ID: <874lncwza1.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20180122114948.mm5mg6zqw3hmjj4o@katana>
Wolfram Sang <wsa@the-dreams.de> writes:
> Hi Frank,
>
>> Please go back and read the thread for version 1. Simply resubmitting a
>> forward port is ignoring that whole conversation.
>>
>> There is a lot of good info in that thread. I certainly learned stuff in it.
>
> Yes, I did that and learned stuff, too. My summary of the discussion was:
>
> - you mentioned some drawbacks you saw (like the mixture of trace output
> and printk output)
> - most of them look like addressed to me? (e.g. Steven showed a way to redirect
> printk to trace)
> - you posted your version (which was, however, marked as "not user friendly"
> even by yourself)
> - The discussion stalled over having two approaches
>
> So, I thought reposting would be a good way of finding out if your
> concerns were addressed in the discussion or not. If I overlooked
> something, I am sorry for that. Still, my intention is to continue the
> discussion, not to ignore it. Because as it stands, we don't have such a
> debugging mechanism in place currently, and with people working with DT
> overlays, I'd think it would be nice to have.
Yeah I agree with all of that, I didn't think there were really any
concerns left outstanding. These trace points are very useful, I've
twice added them to a kernel to debug something, so it would be great
for them to be in mainline.
cheers
next prev parent reply other threads:[~2018-01-23 12:11 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-21 14:31 [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues Wolfram Sang
2018-01-21 14:31 ` [RFC PATCH v2 1/1] of: introduce event tracepoints for dynamic device_node lifecyle Wolfram Sang
2018-01-21 22:01 ` Steven Rostedt
2018-01-25 6:48 ` Frank Rowand
2018-01-25 6:58 ` Frank Rowand
[not found] ` <4cc627c4-1aaf-b8d5-5a26-eea7e596743f-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-01-25 8:01 ` Geert Uytterhoeven
2018-01-25 22:40 ` Tyrel Datwyler
[not found] ` <25f83d0d-bc67-f1b5-cadb-838987fd846d-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2018-01-25 23:31 ` Frank Rowand
2018-01-25 8:32 ` Frank Rowand
2018-01-22 8:43 ` [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues Frank Rowand
2018-01-22 11:49 ` Wolfram Sang
2018-01-23 12:11 ` Michael Ellerman [this message]
2018-01-23 19:53 ` Frank Rowand
2018-01-25 6:47 ` Frank Rowand
[not found] ` <11cf8fac-d2fe-ecdb-546f-de3c3b42a637-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-01-25 23:12 ` Wolfram Sang
2018-01-26 0:42 ` Frank Rowand
2018-01-25 6:48 ` Frank Rowand
[not found] ` <20180121143117.19805-1-wsa+renesas-jBu1N2QxHDJrcw3mvpCnnVaTQe2KTcn/@public.gmane.org>
2018-01-25 6:55 ` Frank Rowand
2018-01-25 11:03 ` Steven Rostedt
2018-01-25 21:49 ` Frank Rowand
[not found] ` <a30d4cd3-0068-8cca-cc2f-ca207d0d278b-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-01-25 23:14 ` Wolfram Sang
2018-01-26 0:46 ` Frank Rowand
2018-02-01 17:10 ` Steven Rostedt
2018-01-25 23:53 ` Tyrel Datwyler
2018-01-26 1:08 ` Frank Rowand
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