nanogui: System hangs in SCR_FB.C in tty ioctl
Subject:
Re: System hangs in SCR_FB.C in tty ioctl
From:
Jordan Crouse ####@####.####
Date:
18 Jan 2001 14:40:06 -0000
Message-Id: <3A67012A.E9943BB7@censoft.com>
The best thing you can do is get the driver source, and see what path
the source is following when you make the IOCTL call. Also, you can
stick some printk statements throughout the driver, and watch the driver
as it does its thing.
Jordan
Bipin T S wrote:
>
> Hi,
> I successfully installed microwindows (frame buffer) over the
> linux kernel 2.4. I could see the penguin logo. But when we executed the
> demos, the system hanged.
>
> Upon debugging I saw that the following code in
> drivers/SCR_FB.C that sets the TTY into graphics mode is hanging.
>
> if( ioctl( tty, KDSETMODE, KD_GRAPHICS) == -1) { ....}
> The ioctl is not returning and the system hangs. We have a matrox G100
> card and an Intel machine.
>
> Bipin
>
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