From: Andrew Morton <akpm@os...> - 2006-09-21 17:09:41
Begin forwarded message:
Date: Thu, 21 Sep 2006 05:51:41 -0700
Subject: [Bugme-new] [Bug 7176] New: Mach64 framebuffer console hangs when compiled with gcc 4.1
Summary: Mach64 framebuffer console hangs when compiled with gcc
Kernel Version: 2.6.18
Most recent kernel where this bug did not occur: ?
Hardware Environment: 1) Compaq ProLiant ML330 G2 server [Pentium III 1066MHz]
2) HP ML350G4 [Xeon 3GHz EM64T]
Problem Description: I first noticed the problem with Gentoo's 2.6.16-r8 kernel
on ML330 server (running Debian Etch, but with Gentoo kernel) - kernel compiled
with GCC 4.0, worked fine, but when I recompiled the same kernel with gcc
4.1.2, the kernel locks up at bootup, when it's supposed to switch to graphic
console. I confirmed the same lockup with vanilla 2.6.18 kernel (which is why
I'm reporting here).
The same thing also happens on ML350G4 server with kernel 2.6.17-gentoo-r8
[running in 64bit mode] (previous kernel, compiled with gcc 3.4.6 works, but
when recompiled with gcc 4.1.1, it too locks up in apparently the same way;
unfortunately I'm not able to test with a vanilla kernel there).
Steps to reproduce: Enable Device Drivers -> Graphics support -> <*> Support
for frame buffer devices -> <*> ATI Mach64 display support, [*] Mach64 CT/VT/
GT/LT (incl. 3D RAGE) support, [*] Mach64 GX support; compile with gcc 4.1.1
or 4.1.2, boot.
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