From: holler@ahsoftware.de (Alexander Holler)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 0/9] dt: dependencies (for deterministic driver initialization order based on the DT)
Date: Wed, 14 May 2014 19:53:58 +0200 [thread overview]
Message-ID: <5373ADB6.1070702@ahsoftware.de> (raw)
In-Reply-To: <5373ABD2.9010508@ahsoftware.de>
Am 14.05.2014 19:45, schrieb Alexander Holler:
> One of the biggest problem of the deferred probe stuff is the problem
> how to identify real problems if everything ends up with a deferred
> probe when an error occurs? That means if you display an error whenever
> something is deferred, the log becomes almost unreadable. If you don't
> display an error, you never will see an error. And how do you display
> the real error when deferred probes finally do fail? The deferred probe
> stuff doesn't has any information about the underlying error, so it
> can't display it.
And that is a real problem. I've recently tried to identify why a driver
failed and it was a nightmare because nothing offered any message (debug
or not) when a probe was deferred. So I had to insert tons of printks to
walk upwards to find the finally place where the probe failed.
Everything afterwards just has forwarded the -EPROBE_DEFER without
printing any message.
Regards,
Alexander Holler
next prev parent reply other threads:[~2014-05-14 17:53 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 16:47 [RFC PATCH 0/9] dt: dependencies (for deterministic driver initialization order based on the DT) Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 1/9] dt: deps: dtc: Automatically add new property 'dependencies' which contains a list of referenced phandles Alexander Holler
2014-05-17 12:16 ` Tomasz Figa
2014-05-19 12:35 ` Alexander Holler
[not found] ` <CAJgR-BhRtc1XGqk-TVOrf2y_pYS+nratkPrf+OenP4SFcyK3ng@mail.gmail.com>
2014-05-19 17:26 ` Alexander Holler
2014-05-27 20:02 ` Grant Likely
2014-05-27 20:31 ` Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 2/9] dt: deps: dependency based device creation Alexander Holler
2014-05-14 14:05 ` Grant Likely
2014-05-14 14:49 ` Alexander Holler
2014-05-14 17:20 ` Alexander Holler
2014-05-14 20:06 ` Grant Likely
2014-05-14 21:10 ` Alexander Holler
2014-05-16 11:00 ` Grant Likely
2014-05-18 9:53 ` Alexander Holler
2014-05-16 17:31 ` Alexander Shiyan
2014-05-14 15:51 ` Alexander Holler
2014-05-17 14:24 ` Tomasz Figa
2014-05-18 14:59 ` Grant Likely
2014-05-19 8:41 ` Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 3/9] dt: deps: dtc: Add option to print initialization order Alexander Holler
[not found] ` <CAJgR-BhnFngGr9qxa7NvF7GExiCAr1=HS16AtN20uj7nCmLcKQ@mail.gmail.com>
2014-05-12 22:58 ` Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 4/9] dt: deps: dtc: Add option to print dependency graph as dot (Graphviz) Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 5/9] dt: deps: register drivers based on the initialization order based on DT Alexander Holler
2014-05-14 14:13 ` Grant Likely
2014-05-14 14:58 ` Alexander Holler
2014-05-14 19:32 ` Grant Likely
2014-05-12 16:47 ` [RFC PATCH 6/9] dt: deps: WIP: well done drivers Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 7/9] dt: deps: kirkwood: make it possible to use CONFIG_OF_DEPENDENCIES Alexander Holler
2014-05-12 16:47 ` [RFC PATCH 8/9] dt: deps: dts: kirkwood: dockstar: add dependency ehci -> usb power regulator Alexander Holler
2014-05-12 16:48 ` [RFC PATCH 9/9] dt: deps: omap2: make it possible to use CONFIG_OF_DEPENDENCIES Alexander Holler
2014-05-13 15:40 ` [PATCH 10/9] dt: deps: fix bug not registering late drivers when OF_DEPENDENCIES is disabled Alexander Holler
2014-05-13 19:27 ` [RFC PATCH 11/9] dt: deps: dtc: introduce new (virtual) property no-dependencies Alexander Holler
2014-05-14 14:19 ` [RFC PATCH 0/9] dt: dependencies (for deterministic driver initialization order based on the DT) Grant Likely
2014-05-14 15:02 ` Alexander Holler
2014-05-14 16:05 ` Grant Likely
2014-05-14 16:23 ` Alexander Holler
2014-05-14 17:30 ` Rob Herring
2014-05-14 17:45 ` Alexander Holler
2014-05-14 17:53 ` Alexander Holler [this message]
2014-05-14 18:16 ` Alexander Holler
2014-05-14 19:13 ` Alexander Holler
2014-05-14 19:06 ` Rob Herring
2014-05-14 19:24 ` Alexander Holler
2014-05-15 1:46 ` Alexander Holler
2014-05-14 23:00 ` Alexander Holler
2014-08-21 14:02 ` Thierry Reding
2014-08-21 19:19 ` Alexander Holler
2014-08-22 13:19 ` Mark Rutland
2014-08-22 15:45 ` Alexander Holler
2014-08-25 9:39 ` Thierry Reding
2014-08-25 13:08 ` Jon Loeliger
2014-08-25 13:37 ` Thierry Reding
2014-08-25 14:13 ` Jon Loeliger
2014-08-25 14:41 ` Thierry Reding
2014-08-26 8:42 ` Grant Likely
2014-08-26 8:49 ` Thierry Reding
2014-08-26 9:42 ` Alexander Holler
2014-08-26 10:11 ` Mark Rutland
2014-08-26 10:24 ` Thierry Reding
2014-08-27 10:34 ` Grant Likely
2014-08-27 14:44 ` Catalin Marinas
2014-08-27 16:22 ` Stephen Warren
2014-08-27 16:30 ` Alexander Holler
2014-08-27 16:37 ` Stephen Warren
2014-08-27 16:58 ` Alexander Holler
2014-08-27 17:52 ` Catalin Marinas
2014-08-27 18:14 ` Alexander Holler
2014-08-28 6:50 ` Alexander Holler
2014-08-28 9:23 ` Catalin Marinas
2014-08-29 1:43 ` Alexander Holler
2014-08-26 10:25 ` Thierry Reding
2014-08-26 10:44 ` Alexander Holler
2014-08-26 11:01 ` Alexander Holler
2014-08-26 11:08 ` Thierry Reding
2014-08-26 11:23 ` Alexander Holler
2014-08-26 11:47 ` Thierry Reding
2014-08-26 12:00 ` Alexander Holler
2014-08-26 13:58 ` Jon Loeliger
2014-08-26 14:17 ` Thierry Reding
2014-08-27 7:16 ` Alexander Holler
2014-08-27 9:26 ` Alexander Holler
2014-08-26 7:56 ` Alexander Holler
2014-08-26 8:51 ` Grant Likely
2014-08-26 9:56 ` Alexander Holler
2014-08-26 10:18 ` Alexander Holler
2014-08-26 9:54 ` Mark Rutland
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