[PATCH ]Re: hal doesn't recognize mounting of devices

Danny Kukawka danny.kukawka at web.de
Tue Oct 25 05:56:40 PDT 2005

On Tuesday 25 October 2005 00:41, Jon Nettleton wrote:
> I have already found this lone post to the kernel about the problem,
> http://lkml.org/lkml/2005/9/14/138 .  I have done some of my own testing
> and basically come to the conclusion, this is less likely to happen when
> not using preemption, however it can be triggered.  The ridiculously
> simple patch I am using right now which seems to work fine is this.

If I see this rigth it's really a kernel bug if you use voluntary preempt 
kernel. Is this in any distro-default kernel? Not really sure if we should 
workaround this defaultly.

Btw. I attached a patch as workaround. Maybe someone could test this and check 
the sleep (maybe also higher and lower values). I added a retry instead of a 
sleep before check /proc/mounts to prevent delay on systems where this work 
correct. Unfortunately we have now a delay (0.2 seconds) with relly unmounted 
devices. The only solution would be add a key to enable/disable the retry 
(disabled by default and only enable with fdi file).

Please review and comment.



 ChangeLog              |    8 ++++++
 hald/linux2/blockdev.c |   52 +++++++++++++++++++++++++--------------
 2 files changed, 42 insertions(+), 18 deletions(-)
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