Bug#800501: SystemError on missing files in /var/lib/apt/lists
On Wed, Sep 30, 2015 at 10:59:26AM +0200, Sebastien Bacher wrote:
> > You're probably opened the cache without holding a lock, and
> > an update ran in parallel. That's really the only possible
> > explanation I could think of.
>
> Is there a way to hold a lock as a normal user process? (oneconf is an
> user session service)
> If not is there a standard way to detect that something is changing the
> cache under your feet and to deal with that?
Use inotify on the cache directory? But in any case, this is problematic
and could probably be fixed by adding some new interfaces to APT (so we
can open fds when opening the cache, and fail if the files are not
present there - and if they are present, pass those fds to the
PackageRecords - this would make things race-free).
I'll look more closely at this later.
--
Julian Andres Klode - Debian Developer, Ubuntu Member
See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
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