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Re: When are security updates effective?

On Thu, 31 Aug 2006 09:55:26 +0200, Rolf Kutz wrote:

> * Quoting Mikko Rapeli (mikko.rapeli@iki.fi):
>> On Tue, Aug 29, 2006 at 10:54:45PM +0200, Moritz Muehlenhoff wrote:
>> > Mikko Rapeli wrote:
>> > > Could Debian security advisories help a bit, since the people making the
>> > > packaging changes propably know how to make the changes effective on a
>> > > running installation too?
>> > 
>> > If there's anything special to do (e.g. kernel or glibc) we alredy add this
>> > to the DSA text.
>> Yes, that's great, but some of the non-special cases are not that
>> obvious. Should I reboot or at least restart kdm after libtiff4 update?
>> On one host I get the feeling I don't since 'lsof 2>/dev/null | grep libtiff'
>> returns nothing. Then again this would suggest, that at least kde/kdm
>> needs to be restarted:
>> # apt-cache rdepends libtiff4|grep kde
>>   kdelibs4
>>   kdegraphics-kfile-plugins
>> So which one is it?
> You can check with 
> # lsof +L1
> It will show you open Files that have been
> unlinked. If any of those are part of the upgraded
> packages, you restart that process.
> - Rolf

Note that this has been broken since at most Linux 2.6.8. Relying on it
may cause you to not notice that some processes need to be restarted after
upgrading a package containing a shared library.


I currently rely on both lsof and the psdel script I wrote, link to from
that bug report.

Sam Morris

PGP key id 1024D/5EA01078
3412 EA18 1277 354B 991B  C869 B219 7FDB 5EA0 1078

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