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    SubjectRe: [BISECTED] x11 fbdev on intelfb hangs hard after 66c1ca019078220dc1bf968f2bb18421100ef147
    On Thu, Apr 09, 2009 at 06:02:04PM -0400, Pavel Roskin wrote:
    > Hello!
    > I'm running the latest wireless-testing.git kernel, which is 2.6.30-rc1
    > plus some wireless bits. I use intelfb with kernel mode switching and
    > X11 using fbdev. This runs on Fedora 10, fbdev driver is
    > xorg-x11-drv-fbdev-0.3.1-7.fc9.x86_64.
    > This worked fine with Linux 2.6.29, but after upgrading to 2.6.30-rc1
    > X11 hangs hard.
    > Bisecting found commit 66c1ca019078220dc1bf968f2bb18421100ef147 to be
    > responsible. It can be reverted on top of 2.6.30-rc1, and the resulting
    > kernel is working fine. The commit is called:
    > fbmem: fix fb_info->lock and mm->mmap_sem circular locking dependency
    > I'm especially concerned to see in the cc in the log.
    > This patch fails on two systems for me, so it's hardly ready for stable
    > kernels.
    > The kernel config (very minimal, I used it to speed up bisecting),
    > xorg.conf and lspci output are attached.

    Thanks for reporting Pavel. I agree to revert 66c1ca ASAP.

    See also


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