Hi Stephen,
Based on this output:
Mar 13 13:14:27 System1 clamd[9495]: LibClamAV Warning: fmap_readpage:
pread fail: asked for 901703 bytes @ offset 4096, got 0
Mar 13 13:14:27 System1 clamd[9495]: LibClamAV Error: fmap_get_MD5: error
reading while generating hash!
... it looks to me like you're running into this issue:
https://github.com/Cisco-Talos/clamav/issues/440
We are working on a fix for this and will include it in the 0.103.6 release
planned for late April. Sorry about the frustration.
Regards,
Micah
Micah Snyder
ClamAV Development
Talos
Cisco Systems, Inc.
________________________________
From: clamav-users <clamav-users-boun...@lists.clamav.net> on behalf of Stephen
Scotter via clamav-users <clamav-users@lists.clamav.net>
Sent: Thursday, March 17, 2022 4:25 AM
To: ClamAV Users ML <clamav-users@lists.clamav.net>
Cc: Stephen Scotter <sscot...@yahoo.com>
Subject: [clamav-users] LibClamAV Warning: fmap_readpage: pread fail
Hi,
I noticed Clamd has unexpectantly died on two of my virtual machines.
Investigating lead me to find similar errors in the logs on both hosts around
the times I know clamd died (I'm monitoring for the existence of a clamd
process with zabbix but only got around to investigating today due to other
commitments)
System1
Virtual Machine
CPU : 1 socket / 2 cores
RAM : 2GB Ram (I must have been feeling frugal on the day I created that VM)
OS : Debian 10 / buster
Clam : ClamAV 0.103.5/26484/Thu Mar 17 08:28:38 2022
Mar 13 13:14:27 System1 clamd[9495]: LibClamAV Warning: fmap_readpage: pread
fail: asked for 901703 bytes @ offset 4096, got 0
Mar 13 13:14:27 System1 clamd[9495]: LibClamAV Error: fmap_get_MD5: error
reading while generating hash!
Mar 13 13:14:27 System1 systemd[1]: clamav-daemon.service: Main process exited,
code=killed, status=11/SEGV
Mar 13 13:14:27 System1 systemd[1]: clamav-daemon.service: Failed with result
'signal'.
System2
Virtual Machine
1 socket / 2 cores
4GB Ram (This is our standard allocation; This VM isn't in production yet and
isn't doing anything)
OS : Debian 11 / bullseye
Clam : ClamAV 0.103.5/26484/Thu Mar 17 08:28:38 2022
Mar 9 19:56:17 System2 clamd[541]: LibClamAV Warning: fmap_readpage: pread
fail: asked for 455239 bytes @ offset 450560, got 0
Mar 9 19:56:17 System2 clamd[541]: LibClamAV Error: fmap_get_MD5: error
reading while generating hash!
Mar 9 19:56:17 System2 kernel: [19292.532221] clamd[6494]: segfault at 0 ip
00007f73de568a08 sp 00007f73777fd410 error 4 in
libclamav.so.9.0.5[7f73de491000+11d000]
Mar 9 19:56:17 System2 systemd[1]: clamav-daemon.service: Main process exited,
code=killed, status=11/SEGV
Mar 9 19:56:17 System2 systemd[1]: clamav-daemon.service: Failed with result
'signal'.
Mar 9 19:56:17 System2 systemd[1]: clamav-daemon.service: Consumed 20min
43.611s CPU time.
This feels like it could be related to a lack of RAM? Would anyone be able to
confirm I'm on the right track before shutdown the VMs to I allocate Ram?
Cheers
Steve
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