Hi Jorge,

I have attempted to reproduce the issue and haven't had any luck.  Here is what I tried, please let me know what I could be doing wrong.
  1.  Downloaded the prebuilt clamav-1.0.0.win.x64.zip
  2. clamd.exe --log=<log path>
  3. clamdscan --log=<log path> --multiscan <folder>
the scan folder had 23k files.

I then tried separating the files into multiple folders, and passing all the folders into clamdscan
  1. clamdscan --log=<log> --multiscan <folder 1> <folder2> ...
Neither of these were able to reproduce the behavior you are seeing.  Can you tell me a little more about your particular configuration, and what else I can try to reproduce this?

Thanks,
Andy 

From: clamav-users <clamav-users-bounces@lists.clamav.net> on behalf of Jorge Elissalde via clamav-users <clamav-users@lists.clamav.net>
Sent: Thursday, December 8, 2022 6:20 AM
To: ClamAV users ML <clamav-users@lists.clamav.net>
Cc: Jorge Elissalde <elissalde.j.e@gmail.com>
Subject: Re: [clamav-users] Memory Allocation error, clamd stop running
 
Hi,

This is a very frequent error in the log:

LibClamAV Error: cli_calloc(): Can't allocate memory (65013504 bytes).
LibClamAV Error: cli_ac_init: Can't allocate memory for data->lsigsuboff_(last|first)[0]
C:\Windows\SysWOW64\odbcad32.exe: Can't allocate memory ERROR
calloc_problem: Not enough space
LibClamAV Error: cli_calloc(): Can't allocate memory (65013504 bytes).
calloc_problem: Not enough space
LibClamAV Error: cli_calloc(): Can't allocate memory (65013504 bytes).
LibClamAV Error: cli_ac_init: Can't allocate memory for data->lsigsuboff_(last|first)[0]
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell_ise.exe: Can't allocate memory ERROR

Thanks,

Jorge


El mié, 7 dic 2022 a las 18:43, Andy Ragusa (aragusa) via clamav-users (<clamav-users@lists.clamav.net>) escribió:
Hi Jorge,

Is it a particular file that is being scanned when this happens?  

Could you please send clamd's logs to help determine what is going on?

Thanks,
Andy
From: clamav-users <clamav-users-bounces@lists.clamav.net> on behalf of Jorge Elissalde via clamav-users <clamav-users@lists.clamav.net>
Sent: Wednesday, December 7, 2022 3:41 PM
To: ClamAV users ML <clamav-users@lists.clamav.net>
Cc: Jorge Elissalde <elissalde.j.e@gmail.com>
Subject: [clamav-users] Memory Allocation error, clamd stop running
 
Hi,

I'm using the latest Windows Clamav version (1.0.0).
I'm connected to clamd and I request a folder scan having 94,249 files, 10GB total.
The command I send is MULTISCAN [folder].
When scanner is over 9,075 files it stops working and the message is:

memory allocation of 1048576 bytes failed

Clamd stop running.
I'm running with next relevant settings in clamd.conf:

MaxThreads 6
ScanArchive yes
MaxScanSize 20M
MaxFileSize 10M
MaxFiles 150
MaxRecursion 10

The same test with the older 0.105 Clamav version works without trouble using the same parameters.
What could be happening there?
Thank you

Jorge


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