I have a command-line job running on a system with about 1.1 Million files, nearly all of which are under 5k in size. The files are spread throughout numerous directories, and when running clamwin on the entire volume, it usually gets 40-50% of the way through the job, then exits back to a command prompt. Here's the last 15-20 lines of the job:

Scanning d:\maildata\mail/xxx.xxx/yyy/200603312120075D81.tmp
LibClamAV Error: Can's fstat descriptor 4
d:\maildata\mail/xxx.xxx/yyy/200603312120075D81.tmp: Input/Output error
Scanning d:\maildata\mail/xxx.xxx/yyy/200603312315168049.tmp
LibClamAV Error: Can's fstat descriptor 4
d:\maildata\mail/xxx.xxx/yyy/200603312315168049.tmp: Input/Output error
Scanning d:\maildata\mail/xxx.xxx/yyy/20060401003619ACA7.tmp
ERROR: Can't open file d:\maildata\mail/xxx.xxx/yyy/200604010036
19ACA7.tmp
Scanning d:\maildata\mail/index.dat
d:\maildata\mail/index.dat: OK

----------- SCAN SUMMARY -----------
Known viruses: 50700
Engine version: 0.88.1
Scanned directories: 10126
Scanned files: 545537
Infected files: 470
Data scanned: 31354.24 MB
Time: 39414.507 sec (656 m 54 s)

The paramaters on the scan job are:

clamscan -d "c:\Documents and Settings\All Users\.clamwin\db" -v -l c:\clam-av.log -r --move=c:\infect d:\mail\domains\

Any ideas as to why this would occur?

-Mark

why do you think there is an erroClamav may skip certain files (mp3, avi, txt,empy iles,, etc) so thescanned files count doesn't have to equal the total files count.

Because there are no mp3, avi, txt, etc. files. They are *all* .tmp files, and the scanning stops 1/2 way through the directory tree (on this last run, it stopped on the l* directories). I simply replaced the actual directory name with xxx.xxx, but ClamAV works through the directories alphabetically and stops 1/2 way through.

run it with --debug switch, it will produce verbose output and most likely find the cause of this error