Bug 13427

Summary:	zgv does not work on kernel 2.6.28-r5
Product:	Other	Reporter:	Wim Osterholt (wim)
Component:	Other	Assignee:	other_other
Status:	RESOLVED INVALID
Severity:	normal	CC:	alan, wim
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.28-r5	Subsystem:
Regression:	No	Bisected commit-id:

Description Wim Osterholt 2009-06-02 01:42:05 UTC

The mere change from kernel version 2.6.27-r10 (or below) to 2.6.28-r5 will make zgv stop working.  Zgv needs svgalib.  I use svgalib 1.9.25
Svgalib compiles its module svgalib_helper.ko as usual, without errors.
Modprobe svgalib_helper installs fine without errors.
Zgv however exits immediately, without errors.
Strace shows no difference, except for the last line Child exited normally.

Regards, Wim.

Comment 1 Alan 2009-06-03 14:59:37 UTC

svgalib_helper isn't part of the base kernel so you will need to talk to the svgalib maintainers about what needs changing in that module to work with newer kernels

Comment 2 Wim Osterholt 2009-06-03 23:13:30 UTC

bugzilla-daemon@bugzilla.kernel.org zei ooit: 

> http://bugzilla.kernel.org/show_bug.cgi?id=13427
> 
> 
> Alan <alan@lxorguk.ukuu.org.uk> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>              Status|NEW                         |RESOLVED
>                  CC|                            |alan@lxorguk.ukuu.org.uk
>          Resolution|                            |INVALID
> 
> 
> 
> 
> --- Comment #1 from Alan <alan@lxorguk.ukuu.org.uk>  2009-06-03 14:59:37 ---
> svgalib_helper isn't part of the base kernel so you will need to talk to the
> svgalib maintainers about what needs changing in that module to work with
> newer
> kernels
> 

The ONLY variable is a change of kernel and then stuff stops working.
So it IS a kernel matter and it is NOT resolved, whatever it is.
I just mentioned the two ingredients it takes to experience the effect.
Nothing has changed in svgalib, so there's nothing to talk about with the
maintainers of svgalib. I don't even know if svgalib is the culprit.
Nothing has changed in zgv either.
Due to the newest kernel a child process exits prematurely and without any
errors. That's all I know. And I don't know how to debug that any further.

Wim.

Comment 3 Alan 2009-06-05 09:51:56 UTC

Application interfaces are long term and don't change. Kernel modules (.ko files) are not. They will need updating when kernels change.