Arch Linux

Scriptor

Member

Registered: 2011-01-16

Posts: 146

linux 3.18 kernel panic[SOLVED]

Hello,

Today, I performed a

pacman -Syu

wich also updated the linux kernel. Unfortunately I was unable to go pass the version 218 due to a kernel panic. So I tried to reboot thinking it was only a mistake or bug, but same result. So I managed to downgrade to version 3.17.6 from a live cd. But now I have another problem which is not being able to install the right module,

broadcom-wl

, for my wireless device :

BCM4352

. Once I did that I returned back to linux without any problems. But since I changed my kernel version I had to reinstall the wireless module. Unfortunately, I wasn't able to because when installing it says :

entering directory /usr/lib/modules/3.17.6-1-ARCH/build no target specified and no makefile has been found

.

So my questions are :

- Is my kernel panic due to compatibility problems with my hardware or just the kernel version ?
- How can I get back my wireless ?

Thank you very much in advance for any response and sorry for my english but I'm french

Last edited by Scriptor (2015-01-16 08:28:45)

ooo

Member

Registered: 2013-04-10

Posts: 1,638

Re: linux 3.18 kernel panic[SOLVED]

Impossible to say why you're getting a panic with the newest kernel without any information. Tell us what happens when you're trying to boot your system, what errors you're getting, etc.

On the wireless issue:

When you build any kernel modules outside of the kernel (like broadcom-wl), you also need linux-headers for the version for the kernel you're building it for.

When you downgraded your kernel back to 3.17.6 you probably forgot to downgrade linux-headers and they're still version 3.18.2. So when you're trying to build broadcom-wl for 3.17.6, it fails because it can't find the correct headers.

or that's my guess from that error message.

downgrade linux-headers to the same version as your current kernel, and try installing broadcom-wl again.

ipatch

Member

Registered: 2014-05-14

Posts: 26

Re: linux 3.18 kernel panic[SOLVED]

downgrade linux-headers to the same version as your current kernel, and try installing broadcom-wl again.

An explanation of how to downgrade the headers, i.e. the commands used to perform the task would be useful, for people who are coming to this thread with similar issues. ...just saying.

WebReflection

Member

Registered: 2014-07-08

Posts: 106

Re: linux 3.18 kernel panic[SOLVED]

it's a known issue, discussed already here https://bbs.archlinux.org/viewtopic.php?id=192258 and commented here: https://aur.archlinux.org/packages/broadcom-wl/

You do need to downgrade linux-headers too and rebuild the driver until there is a better solution.

nutsh

Member

Registered: 2013-10-14

Posts: 15

Re: linux 3.18 kernel panic[SOLVED]

You can unpack old packaged from cache if you've not cleared it pacman -U packagename. They should sit in /var/cache/pacman/pkg. You will have to downgrade to linux-3.17 linux-headers-3.17 and all other packaged that depend of them, pacman will tell you if there are any.

Scriptor

Member

Registered: 2011-01-16

Posts: 146

Re: linux 3.18 kernel panic[SOLVED]

Thank you very much, downgrading the linux-headers did the job