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mrfabiolo
Tux's lil' helper
Tux's lil' helper


Joined: 02 Jan 2011
Posts: 88

PostPosted: Sat Jul 05, 2014 1:29 pm    Post subject: Kernel panic Reply with quote

I've recompiled the kernel linux. I've only added some options for power saving, and wireless support.
That, i've re-run "grub-install /dev/sda" and "grub2-mkconfig -o /boot/grub/grub.cfg". (I don't know if that was neccessary).
Now I can't run Gentoo, (I can't also in recovery mode). I made a screenshot. Here the computer is blocked... and I see that the led of the "mascius shift" is blinking.
http://oi61.tinypic.com/23igprq.jpg
In Grub I can load an other item from the list . (Gentoo 3.12.20 which is the same version of the kernel .... but i think with the previous configuration). And this version runs correctly.
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DONAHUE
Watchman
Watchman


Joined: 09 Dec 2006
Posts: 7564
Location: Goose Creek SC

PostPosted: Sat Jul 05, 2014 10:58 pm    Post subject: Reply with quote

The panic picture seems to suggest that graphics support is misconfigured. What graphics card(s) are installed and what video driver(s) are you trying to use?

sys-kernel/gentoo-sources-3.12.21-r1 is the current stable version according to http://packages.gentoo.org/package/sys-kernel/gentoo-sources. Suggest booting the working kernel, then running:
(assuming you use a manual kernel)
Code:
emerge gentoo-sources
eselect kernel list
eselect kernel set linux-3.12.21-gentoo-r1
# or eselect kernel set {the number assigned linux-3.12.21-gentoo-r1}
cd /usr/src/linux
zcat /proc/config.gz > /usr/src/linux/.config
make oldconfig && make menuconfig
make && make modules_install && make install
grub2-mkconfig -o /boot/grub/grub.cfg
reboot
(assuming you use genkernel)
Code:
emerge gentoo-sources
eselect kernel list
eselect kernel set linux-3.12.21-gentoo-r1
# or eselect kernel set {the number assigned linux-3.12.21-gentoo-r1}
cd /usr/src/linux
zcat /proc/config.gz > /usr/src/linux/.config
genkernel --oldconfig --no-mrproper --no-clean all
grub2-mkconfig -o /boot/grub/grub.cfg
reboot
assuming the new kernel boots, add the options for power saving and wireless support a little at a time, technique for manual kernel is normal, for genkernel use "genkernel --no-mrproper --no-clean --menuconfig all"
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Aquous
l33t
l33t


Joined: 08 Jan 2011
Posts: 700

PostPosted: Mon Jul 07, 2014 5:23 pm    Post subject: Reply with quote

DONAHUE wrote:
The panic picture seems to suggest that graphics support is misconfigured. What graphics card(s) are installed and what video driver(s) are you trying to use?
What're you talking about? The stacktrace seems to suggest a timer problem. But do note that the really interesting stacktrace is the one that's scrolled offscreen. mrfabiolo, could you perhaps boot with vga=ask and select a higher resolution than your framebuffer is currently using?
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