[Linux-fbdev-devel] Re: sis630 - help needed debugging in the kernel

[James S. <jsi...@tr...>]

> I currently try to debug why the sisfb driver crashes my machine. (SIS 63=
0
> based laptop - linux-2.4.5-ac13).

You can do one of two things. Post both System.map and the complete oops
or you can run ksymoops on the oops. I can find the problem then. Thanks.

> 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=3D800
> [...]
> Unable to handle kernel paging request at virtual address cc800180
> [oops]
>=20
> This happens in the method: register_framebuffer called from sisfb_init.
>=20
> I compared the sisfb_init with other framebuffer drivers and can't find w=
hat is wrong.
> (I normally don't do kernel hacking...). What does the kernel try to do w=
ith the
> _io-memory_, mapped around line 2230 in sis_main.c? - Must the memory req=
euested or
> mapped in an other way?
>=20
> Another strange thing is, that the code seems to work for some people ...
>=20
> I would be nice if anyone could give me a hint - because the sis-drivers =
(kernel and X)
> doesn't work for many people ...
>=20
> k33p h4ck1n6 Ren=E9
>=20
> --=20
> Ren=E9 Rebe (Registered Linux user: #127875)
> http://www.rene.rebe.myokay.net/
> -Germany-
>=20
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>=20