From: Pavel Machek <pavel@ucw.cz>
To: pali.rohar@gmail.com, sre@kernel.org,
kernel list <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org,
aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com,
patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com,
clayton@craftyguy.net, martijn@brixit.nl,
sakari.ailus@linux.intel.com, wsa@the-dreams.de,
linux-i2c@vger.kernel.org, balbi@ti.com, jlu@pengutronix.de,
bigeasy@linutronix.de
Subject: Re: i2c-omap.c vs. qemu: too much work in one irq (and broken boot)
Date: Mon, 2 Oct 2017 00:19:35 +0200 [thread overview]
Message-ID: <20171001221935.GA29628@amd> (raw)
In-Reply-To: <20171001204215.GA9928@amd>
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Hi!
> I'm trying to get qemu emulation of Nokia N900 to work, but
> unfortunately i2c-omap.c breaks boot in the emulator (real hardware
> works ok).
I started bisection. v4.6 works, v4.7 is broken. (It still may be
config difference or something).
This looked suspect, so I tried reverting it, but it did not help. And
it is only significant change in i2c-omap.c. So... this may be a lot
of fun.
commit 126a66caec4a00b8d66dbc3174b0efa905cf68c3
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon Apr 4 16:55:23 2016 +0300
Unfortunately, mmc is broken in v4.6, so its useless for
emulation... [ 3.236724] mmc1: error -22 whilst initialising SDIO card
Ideas?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: i2c-omap.c vs. qemu: too much work in one irq (and broken boot)
Date: Mon, 2 Oct 2017 00:19:35 +0200 [thread overview]
Message-ID: <20171001221935.GA29628@amd> (raw)
In-Reply-To: <20171001204215.GA9928@amd>
Hi!
> I'm trying to get qemu emulation of Nokia N900 to work, but
> unfortunately i2c-omap.c breaks boot in the emulator (real hardware
> works ok).
I started bisection. v4.6 works, v4.7 is broken. (It still may be
config difference or something).
This looked suspect, so I tried reverting it, but it did not help. And
it is only significant change in i2c-omap.c. So... this may be a lot
of fun.
commit 126a66caec4a00b8d66dbc3174b0efa905cf68c3
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon Apr 4 16:55:23 2016 +0300
Unfortunately, mmc is broken in v4.6, so its useless for
emulation... [ 3.236724] mmc1: error -22 whilst initialising SDIO card
Ideas?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-10-01 22:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-01 20:42 i2c-omap.c vs. qemu: too much work in one irq (and broken boot) Pavel Machek
2017-10-01 20:42 ` Pavel Machek
2017-10-01 22:19 ` Pavel Machek [this message]
2017-10-01 22:19 ` Pavel Machek
2017-10-02 7:23 ` Pali Rohár
2017-10-02 7:23 ` Pali Rohár
2017-10-03 9:38 ` Pavel Machek
2017-10-03 9:38 ` Pavel Machek
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