From: "Luis R. Rodriguez" <mcgrof-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: "Fuzzey,
Martin" <mfuzzey-mB3Nsq4MPf1BDgjK7y7TUQ@public.gmane.org>,
linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Alan Cox <alan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Ted Ts'o <tytso-3s7WtUTddSA@public.gmane.org>,
Andy Lutomirski <luto-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Dmitry Torokhov
<dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "Luis R. Rodriguez"
<mcgrof-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"Michael Kerrisk (man-pages)"
<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Linux API <linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Greg KH
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Daniel Wagner <wagi-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>,
David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
jewalt-d4N2ExZK1jaSe5ORCPIMD9BPR1lH4CV8@public.gmane.org,
rafal-g1n6cQUeyibVItvQsEIGlw@public.gmane.org,
Arend Van Spriel
<arend.vanspriel-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
"Rafael J. Wysocki" <rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org>,
"Li, Yi" <yi1.li-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org,
Moritz Fischer
<moritz.fischer-+aYTwkv1SeIAvxtiuMwx3w@public.gmane.org>,
Petr Mladek <pmladek-IBi9RG/b67k@public.gmane.org>,
Johannes Berg
<johannes.berg-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Emmanuel Grumbach
<emmanuel.grumbach-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Luca Coelho
<luciano.coelho-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Kalle Valo <kvalo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Linus Torvalds <torvalds@linux-founda>
Subject: Re: [PATCH v2] firmware: fix sending -ERESTARTSYS due to signal on fallback
Date: Wed, 7 Jun 2017 19:08:58 +0200 [thread overview]
Message-ID: <20170607170858.GK27288@wotan.suse.de> (raw)
In-Reply-To: <CANh8QzwPb_+RKs5QVt7mdFk8h_rOMVS3j9m0OADgvzBtNqBBLg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Thu, May 25, 2017 at 10:28:38AM +0200, Fuzzey, Martin wrote:
> 1) Android init calls write() on the sysfs file
> 2) The sysfs .store() callback registered by a driver is called
> 3) The driver calls request_firmware()
> 4) request_firmware() sends the firmware load request to userspace and
> calls wait_for_completion_interruptible()
Martin, just for completeness on documenting on the commit log of the next
swait proposed fix for this -- what signal did the process get from which you
note the child dies below ? Exactly what in Android sent this signal ?
> 5) A child dies and raises SIGCHLD
> 6) wait_for_completion_interruptible() returns -ERESTARTSYS due to the signal
Luis
next prev parent reply other threads:[~2017-06-07 17:08 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170524205658.GK8951@wotan.suse.de>
[not found] ` <20170524214027.7775-1-mcgrof@kernel.org>
[not found] ` <CALCETrXUrirO-vg3M+MGhn=0gZTwx0phsRDS4TCwWWgNYC6RsA@mail.gmail.com>
2017-05-24 22:38 ` [PATCH v2] firmware: fix sending -ERESTARTSYS due to signal on fallback Luis R. Rodriguez
2017-05-25 4:13 ` Andy Lutomirski
[not found] ` <CALCETrU4__YUGk36PN=FbuEf0SBaTrxQQqm4sWs2NrZ+6WN7jA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-05-25 8:28 ` Fuzzey, Martin
2017-05-26 11:09 ` Eric W. Biederman
[not found] ` <87fufr3mdy.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2017-05-26 19:46 ` Luis R. Rodriguez
2017-05-26 21:26 ` Dmitry Torokhov
[not found] ` <CAKdAkRTrcTVOAP5GK-R=Au_tL5WqSn5UkQEzNe5NcCWXS8mbtA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-05-26 21:32 ` Luis R. Rodriguez
2017-05-26 21:55 ` Dmitry Torokhov
2017-06-05 20:24 ` Luis R. Rodriguez
[not found] ` <20170605202410.GQ8951-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2017-06-06 9:04 ` Martin Fuzzey
[not found] ` <59367025.3020901-mB3Nsq4MPf1BDgjK7y7TUQ@public.gmane.org>
2017-06-06 16:34 ` Luis R. Rodriguez
[not found] ` <20170606163401.GA27288-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2017-06-06 17:52 ` Luis R. Rodriguez
2017-06-06 14:53 ` Alan Cox
[not found] ` <1496760796.5682.48.camel-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-06-06 16:47 ` Luis R. Rodriguez
[not found] ` <20170606164734.GB27288-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2017-06-06 17:54 ` Luis R. Rodriguez
2017-06-06 22:11 ` Theodore Ts'o
[not found] ` <20170606221151.ygoxqkwhhjsqw632-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2017-06-07 0:22 ` Luis R. Rodriguez
[not found] ` <20170607002237.GJ27288-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2017-06-07 4:56 ` Andy Lutomirski
2017-06-07 6:25 ` Dmitry Torokhov
2017-06-07 12:25 ` Alan Cox
2017-06-07 17:15 ` Luis R. Rodriguez
2017-06-09 1:14 ` Andy Lutomirski
[not found] ` <CALCETrXbHpkN9Pujj=U1VpAR9MTOyCAqCtL0=7-vb1EdpEwCMg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-09 1:33 ` Luis R. Rodriguez
[not found] ` <CAB=NE6USSj0sBzJSFOyyRQu=0rQXdbHc2+GNk1fse+Y8H6TrgQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-09 21:29 ` Luis R. Rodriguez
[not found] ` <CANh8QzwPb_+RKs5QVt7mdFk8h_rOMVS3j9m0OADgvzBtNqBBLg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-05-26 19:40 ` Luis R. Rodriguez
[not found] ` <20170526194001.GR8951-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2017-05-26 20:23 ` Fuzzey, Martin
[not found] ` <CANh8QzyqQ5hubWJvWYxgoQ3baL6sgoQPSzEHMY0tu8WNGS2gZA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-05-26 20:52 ` Luis R. Rodriguez
2017-06-07 17:08 ` Luis R. Rodriguez [this message]
2017-06-07 17:54 ` Martin Fuzzey
[not found] ` <59383DDA.3040702-mB3Nsq4MPf1BDgjK7y7TUQ@public.gmane.org>
2017-06-09 1:10 ` Luis R. Rodriguez
2017-06-09 1:57 ` Luis R. Rodriguez
[not found] ` <CAB=NE6UQZMmLvxTu7RcFHh3neAh+RFpTTFCSwJ8_EsmmtEq94Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-09 7:40 ` Martin Fuzzey
[not found] ` <593A50FF.40604-mB3Nsq4MPf1BDgjK7y7TUQ@public.gmane.org>
2017-06-09 21:12 ` Luis R. Rodriguez
2017-06-09 22:55 ` Luis R. Rodriguez
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