linux-kernel - Re: CONFIG_VMSPLIT_3G_OPT=y && viafb && newer GCC == hang

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Message-ID: <20090701055152.GA5366@plexity.net>
Date:	Tue, 30 Jun 2009 22:51:52 -0700
From:	Deepak Saxena <dsaxena@...xity.net>
To:	linux-kernel@...r.kernel.org
Cc:	Harald Welte <HaraldWelte@...tech.com>
Subject: Re: CONFIG_VMSPLIT_3G_OPT=y && viafb && newer GCC == hang

On Jun 30 2009, at 22:37, Deepak Saxena was caught saying:
> 
> During bring up of the OLPC XO-1.5 board, I am seeing an issue where if I
> enable CONFIG_VMSPLIT_3G_OPT (board has 1GiB RAM) and build a kernel with 
> gcc 4.2.4 on Ubuntu 8.0.4 or gcc 4.4 on F11, the kernel hangs on a call to 
> acquire_console_sem() from the viafbdev driver during device probe. If I
> use gcc 4.1.2 on FC6, everything works OK.

This is on 2.6.30 with some OLPC patches:

http://dev.laptop.org/git/olpc-2.6/log/?h=xo-1.5

-- 
In the end, they will not say, "those were dark times,"  they will ask
"why were their poets silent?" - Bertold Brecht

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