Package: linux-2.6 Severity: normal Tags: d-i Tested on both 2.6.30 and 2.6.31-rc3, enabling PAT leads to this printk when bogl-bterm tries to mmap /dev/fb0, and the mmap fails.
[ 802.000124] bterm:814 map pfn expected mapping type uncached-minus for a0000-b0000, got write-back With PAT disabled, as is in the case in the Ubuntu kernel, this problem does not occur. This problem makes d-i fail to boot in qemu (when used without kvm accelleration), and some virtualbox instances. It probably affects certian real hardware also. Workaround is to boot with "nopat". Colin suspects that commit b6ff32d9aaeeeecf98f9a852d715569183585312 may be the cause of the problem, but we have not verified that. The simplest fix seems to be to turn PAT off, especially since its Kconfig mentions that it can lead to "boot crash, boot hang, spontaneous reboots) or a non-working video driver". -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: i386 (i686) Kernel: Linux 2.6.30-1-686 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash -- see shy jo
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