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Bug#269071: kernel: matroxfb can lock kernel 2.2.22 (alpha pws 433a with millenium II)

Package: kernel
Version: N/A; reported 2004-08-30
Severity: important
Tags: security

To use a miro pctv, I compiled a 2.2.22 kernel from debian stable
source, and activated the framebuffer support at the same time ; all
went well, and I've installed that new kernel 'the debian way' (making a
package, etc.) At first glance, all went fine and to escape from the
80x25 mode I supplied video=matrox:vesa:0x11A as kernel parameter in
aboot.conf ; then again all looked right (except for the Tux logo which
is crippled at boot). But randomly, the machine locks up completely ;
well, I thought randomly, but I finally noticed that it only happens
when I'm using a curse type program (slrn, even dpkg-reconfigure), more
precisely when I hit a directional arrow. I suspect without any clue
that there is a timing problem somewhere, but I'm not skilled enough to
prove it. Btw, I've also time to time a big white square (8x4 chars)
appearing around the hw cursor.

I understand that 2.2 branch may be no more a priority, but I felt that
had to be reported anyway as I've already lost some files in a
subsequent fsck due to 'power button reboot' as miatas have no reset
switch (and I forgot to compile in the magic keys).

-- System Information
Debian Release: 3.0
Architecture: alpha
Kernel: Linux alpha 2.2.22 #1 Sun Aug 29 03:22:34 CEST 2004 alpha
Locale: LANG=french, LC_CTYPE=french

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