Hi Jens, Do you have the OnAccessExtraScanning option on by chance?
There's a known issue with that option which can cause memory consumption problems. Though I'm still not certain why that would lead to printing "(null)" virnames. - Mickey On Thu, Aug 2, 2018 at 8:45 AM, Kretschmer, Jens < kretschmer.j...@siemens.com> wrote: > > How long as this been going on? > > Apparently it has been going on for a couple of days. I did not notice the > "ScanOnAccess: ... (null) FOUND" messages, until I hid the "ScanOnAccess: > Performing additional scanning on file ..." messages. The first occurrence > was on July 23rd 13:00:08 with clamav-0.99.4-1.el7.x86_64 > > Jul 23 13:00:08 hostname1 clamd[6539]: ScanOnAccess: > /home/user1/.nv/GLCache/ca7c949c26f976e0f53c14399c2ef02e/3a4ed7c703a940c9: > (null) FOUND > Jul 23 13:00:08 hostname1 clamd[6539]: ScanOnAccess: > /home/user1/.nv/GLCache/ca7c949c26f976e0f53c14399c2ef02e: (null) FOUND > > As you can see, those messages do not only appear for the firefox cache. > > On Jul 26th we updated clamav to clamav-0.100.1-1.el7.x86_64. But the > messages still appear. > > > What is your database set? > > Database information > -------------------- > Database directory: /var/lib/clamav > main.cvd: version 58, sigs: 4566249, built on Wed Jun 7 23:38:10 2017 > bytecode.cld: version 326, sigs: 93, built on Thu Jul 26 18:44:35 2018 > daily.cld: version 24803, sigs: 2034540, built on Wed Aug 1 18:43:39 2018 > Total number of signatures: 6600882 > > > > What version of ClamAV are you using? > Currently clamav-0.100.1-1.el7.x86_64 > > > Are you using the VirusEvent hook? > No > > I noticed something else. There were out of memory messages showing for > clamd. > > Aug 02 13:07:17 cis4test clamd[4051]: out of memory [4051] > Aug 02 13:17:17 cis4test clamd[4051]: out of memory [4051] > > Unfortunately they were not associated with clamd but with journal in > rsyslog, that's why I did not notice them at first. At that time the > machine had 3GB of free memory and more than 25GB of free swap, so I don't > understand why those messages were showing up. They also started to show up > on Jul 24th 14:38:08 (after the first "ScanOnAccess: ... (null) FOUND" > messages showed up). On July 26th the messages stopped after updating > clamav to 0.100.1-1, but then showed up again on Aug 1st 18:56:31. I just > restarted clamav and the "out of memory" messages are no longer showing up > and the "ScanOnAccess: ... (null) FOUND" are not either. > > Summary: > Jul 23 13:00:08 -- first "ScanOnAccess: ... (null) FOUND" message > Jul 24 14:38:08 -- first "out of memory" message > Jul 26 14:44:03 -- update to clamav-0.100.1-1, "ScanOnAccess: ... (null) > FOUND" messages and "out of memory" messages stop > Jul 30 09:40:44 -- "ScanOnAccess: ... (null) FOUND" messages reappear > Aug 1 18:56:31 -- "out of memory" messages reappear > Aug 2 13:38:51 -- restart clamd@scan, "ScanOnAccess: ... (null) FOUND" > messages and "out of memory" messages stop > > I will closely monitor the faulty machine and I will try to reproduce this > behavior on a different machine and report back to you with my findings. > > I attached the output of clamconf. > > Best regards, > Jens > > > > _______________________________________________ > clamav-users mailing list > clamav-users@lists.clamav.net > http://lists.clamav.net/cgi-bin/mailman/listinfo/clamav-users > > > Help us build a comprehensive ClamAV guide: > https://github.com/vrtadmin/clamav-faq > > http://www.clamav.net/contact.html#ml > >
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