[clamav-users] ClamAV on openSUSE Tumbleweed

Micah Snyder (micasnyd) micasnyd at cisco.com
Mon Mar 18 13:02:22 EDT 2019

Hi ellanios82,

How often do you update your signature database?  How often do you do a scan?
Did this slowdown just occur in the last few days, or last couple weeks?

I am curious if the slowdown occurred after daily-25380.cdiff (a database change that I am told removed many hash signatures from the database which would be detected by more efficient signatures), or if some change to bytecode signatures is causing much slower scans.  The message you reported "LibClamAV Warning: Bytecode 3 failed to run: Error during bytecode execution" isn't necessarily due to a bytecode timeout (which is more common), but indicates some sort of problem with a bytecode signature.  If you can identify what files cause this error, it would very helpful if we could analyze those files with the signature to see what is going wrong.


Micah Snyder
ClamAV Development
Cisco Systems, Inc.

On 3/18/19, 3:52 AM, "clamav-users on behalf of ellanios82 via clamav-users" <clamav-users-bounces at lists.clamav.net on behalf of clamav-users at lists.clamav.net> wrote:    
      - usually , i run ClamAV on my home PC once a week : have about 42 GB files in total
      - normally ClamAV takes about 4 hours to complete but , Today , ClamAV is running for 7 hours , and STILL not finished
      - something odd ??
      Omitted to say, 7 times i receive this message :
    <LibClamAV Warning: Bytecode 3 failed to run: Error during bytecode execution>
      - Eventually finished : took 12 Hours to scan 44 GB  [ normally, would have expected 4 Hours to scan my 44 GB ]

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