[Mimedefang] problem with mcafee virus scan (uvscan) on RH Linux 9

Josh Kelley josh at jbc.edu
Thu Jun 5 18:07:01 EDT 2003


Gus.Buerkle at trilogy.com wrote:

>I was attempting to configure uvscan to be executed from mimedefang (as 
>suggested in Mickey Hill's mimedefang howto) but found that the command 
>would hang and cause the milter to timeout- turns out that running uvscan 
>from the command line also hangs.  'ps' indicates the process is sleeping. 
> I saw a similar post on this list suggesting that uvscan was somehow 
>checking the cd and / or floppy drives for every run - maybe that is 
>involved in this case?  From the below strace it seems that some sort of 
>device checking is related to the problem.
>
>Unfortunately I don't have phone support from NAI / McAfee, and I've 
>submitted an email trouble ticket but haven't heard from them.  No source, 
>and obviously no debugging symbols in the executable either...
>
>i'm still investigating the strace: here are the last few lines.
>
><snip>
>
>RH Linux 9, kernel 2.4.20 (stock)
>uvscan v4.2.40
>
>thanks for any ideas
>Gus
>  
>
Red Hat 9 changed their threading model to NPTL (Native POSIX Thread 
Library), and apparently uvscan doesn't like that.  If you add 
LD_ASSUME_KERNEL=2.4.1 to your environment, things will use the old 
thread library, and uvscan should work.

Josh Kelley




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