>
http://bugzilla.kernel.org/show_bug.cgi?id=10580
>
> Summary: uvesafb is broken
> Product: Drivers
> Version: 2.5
> KernelVersion: 2.6.25-git
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Console/Framebuffers
> AssignedTo:
jsimmons@infradead.org
> ReportedBy:
francois.valenduc@tvcablenet.be
>
>
> Latest working kernel version: 2.6.25-git7
> Earliest failing kernel version: 2.6.25-git8
> Distribution: Gentoo
> Hardware Environment: Packard Bell MB86, Intel Core 2 Duo
> Software Environment:
> Problem Description:
>
> uvesafb doesn't work anymore with the current git version. v86d failed with the
> following error:
>
> Program v86d tried to access /dev/mem between a0000->110000.
> v86d[255]: segfault at 7f1025c22000 ip 400da6 sp 7fff2dc3e1d0 error 6 in
> v86d[400000+17000]
> uvesafb: Getting VBE info block failed (eax=0x4f00, err=-3)
> uvesafb: vbe_init() failed with -22
> uvesafb: probe of uvesafb.0 failed with error -22
>
> After having tried git-bisect, it seems that the first bad commit which might
> cause the problem is the following:
>
> commit e2beb3eae627211b67e456c53f946cede2ac10d7
> Author: Venki Pallipadi <venkatesh.pallipadi@intel.com>
> Date: Thu Mar 6 23:01:47 2008 -0800
>
> devmem: add range_is_allowed() check to mmap of /dev/mem
>
> I have tried to revert it on the current git (git16) but it's not possible to
> do so.
>
> Steps to reproduce: