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From: "René Rebe" <>
	"Ademar de Souza Reis Jr." <>
Cc: Rolf Schillinger <>
Subject: sis630 - help needed debugging in the kernel
Date: Wed, 13 Jun 2001 17:23:20 +0200	[thread overview]
Message-ID: <> (raw)

Hi all!

I currently try to debug why the sisfb driver crashes my machine. (SIS 630
based laptop - linux-2.4.5-ac13).

On my serial-console I get:
sisfb: framebuffer at 0xe0000000, mapped to 0xcb800000, size 16384k
sisfb: MMIO at 0xefce0000, mapped to 0xcc801000, size 128k
sisfb: encountered LCD # debug output by me
sisfb: fall back to 1024x768 # debug ouput by me
sisfb: LCD mode # debug output by me
sisfb: mode is 800x600x8, linelength=800
Unable to handle kernel paging request at virtual address cc800180

This happens in the method: register_framebuffer called from sisfb_init.

I compared the sisfb_init with other framebuffer drivers and can't find what is wrong.
(I normally don't do kernel hacking...). What does the kernel try to do with the
_io-memory_, mapped around line 2230 in sis_main.c? - Must the memory reqeuested or
mapped in an other way?

Another strange thing is, that the code seems to work for some people ...

I would be nice if anyone could give me a hint - because the sis-drivers (kernel and X)
doesn't work for many people ...

k33p h4ck1n6 René

René Rebe (Registered Linux user: #127875)

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             reply	other threads:[~2001-06-13 15:22 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-13 15:23 René Rebe [this message]
2001-06-13 16:54 ` James Simmons
2001-06-16 21:27   ` René Rebe
2001-06-17 14:03     ` James Simmons
2001-06-18 18:32     ` René Rebe
2001-06-18 19:28       ` Paul Mundt
2001-06-18 21:58         ` James Simmons
2001-06-18 22:02           ` Paul Mundt
2001-06-18 21:01       ` René Rebe
2001-06-13 21:25 ` René Rebe

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