what causes: kernel:[38405.042543] do_IRQ: 0.81 No irq handler for vector (irq -1)

Sat Oct 4 14:18:03 UTC 2014

Thank you again!

On Sat, 4 Oct 2014 09:30:39 +0200 Heinz Diehl <htd+ml at fritha.org> wrote:

> On 03.10.2014, Ranjan Maitra wrote: 
> 
> > How does one go down to a 3.15.10 kernel? I could try that and see, I
> > guess. Would it also downgrade the headers, etc?
> 
> If you install a Fedora kernel: yes.

How does one do this? 

$sudo downgrade kernel\* yields:

$ sudo yum downgrade kernel\*
Loaded plugins: langpacks
Package kernel-3.11.10-301.fc20.x86_64 is allowed multiple installs,
skipping Package kernel-debug-3.11.10-301.fc20.x86_64 is allowed
multiple installs, skipping Package
kernel-debug-devel-3.11.10-301.fc20.x86_64 is allowed multiple
installs, skipping Package
kernel-debug-modules-extra-3.11.10-301.fc20.x86_64 is allowed multiple
installs, skipping Package kernel-devel-3.11.10-301.fc20.x86_64 is
allowed multiple installs, skipping Package
kernel-modules-extra-3.11.10-301.fc20.x86_64 is allowed multiple
installs, skipping No Match for available package:
kernel-doc-3.11.10-301.fc20.noarch No Match for available package:
kernel-tools-3.11.10-301.fc20.x86_64 No Match for available package:
kernel-tools-libs-3.11.10-301.fc20.i686 No Match for available package:
kernel-tools-libs-3.11.10-301.fc20.x86_64 No Match for available
package: kernel-tools-libs-devel-3.11.10-301.fc20.i686 No Match for
available package: kernel-tools-libs-devel-3.11.10-301.fc20.x86_64 No
Match for available package: kernelshark-2.2.1-3.fc20.x86_64 Resolving
Dependencies
--> Running transaction check
---> Package kernel-headers.x86_64 0:3.11.10-301.fc20 will be a
downgrade
---> Package kernel-headers.x86_64 0:3.16.3-200.fc20 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package              Arch         Version
Repository    Size
================================================================================
Downgrading: kernel-headers       x86_64
3.11.10-301.fc20          fedora       899 k

Transaction Summary
================================================================================
Downgrade  1 Package

Total download size: 899 k
Is this ok [y/d/N]: 

Is this ok?

Also, what is the difference between the Fedora and vanilla kernels?

Should I go here to get it?

https://fedoraproject.org/wiki/Kernel_Vanilla_Repositories

> I think: if you're able to reproduce the error easily, you should try
> to bisect the patch which introduced the faulty behaviour. This would
> only make sense with a vanilla kernel.
> 
> The first step would be to find a kernel which isn't problematic, and
> the first one which is. Here's how to do it:
> 
> http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-buggy-kernel-patches/

Thank you. I will look into this. Thought it may well be at least a bit
above my league.

> 
> Alternatively, could you try latest mainline (3.17-rc7) and check if
> the problem persists? Maybe it's solved there.

That would involve enabling rawhide, I guess? So 

$ sudo yum update kernel --enablerepo rawhide
Loaded plugins: langpacks
rawhide/x86_64/metalink                                     |  11 kB
00:00 rawhide                                                     | 4.2
kB  00:00 Resolving Dependencies
--> Running transaction check
---> Package kernel.x86_64 0:3.17.0-0.rc7.git2.1.fc22 will be installed
--> Processing Dependency: kernel-modules-uname-r =
3.17.0-0.rc7.git2.1.fc22.x86_64 for package:
kernel-3.17.0-0.rc7.git2.1.fc22.x86_64
--> Processing Dependency: kernel-core-uname-r =
3.17.0-0.rc7.git2.1.fc22.x86_64 for package:
kernel-3.17.0-0.rc7.git2.1.fc22.x86_64
--> Running transaction check
---> Package kernel-core.x86_64 0:3.17.0-0.rc7.git2.1.fc22 will be
installed
---> Package kernel-modules.x86_64 0:3.17.0-0.rc7.git2.1.fc22 will be
installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package            Arch       Version
Repository   Size
================================================================================
Installing: kernel             x86_64
3.17.0-0.rc7.git2.1.fc22       rawhide      41 k Installing for
dependencies: kernel-core        x86_64
3.17.0-0.rc7.git2.1.fc22       rawhide      18 M kernel-modules
x86_64     3.17.0-0.rc7.git2.1.fc22       rawhide      17 M

Transaction Summary
================================================================================
Install  1 Package (+2 Dependent packages)

Total download size: 35 M
Installed size: 57 M
Is this ok [y/d/N]: 
Exiting on user command
Your transaction was saved, rerun it with:
 yum load-transaction /tmp/yum_save_tx.2014-10-04.09-15.EbFF_o.yumtx

This does not update the kernel-headers or the kernel-modules-extra. Is
that an issue?

Many thanks,
Ranjan

PS: I am just curious: why has there been no update for 3.16 on the
mainline for over two weeks? 

Many thanks again!
Ranjan

> 
> 
> 
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