FreeFileSync

Error Code 12: Cannot allocate memory (readdir_r) while syncing

Asked by Norbert

Hello, Zenju!

Thank you for FreeFileSync program. I'm using it on Ubuntu 12.04.5 x86_64 with FFS 5.21.

I use FFS for syncing between my external USB drive (NTFS formatted) and some folders from internal HDD (ext4 formatted).
It worked like expected, but today I get an error message while syncing:

     Cannot enumerate directory '/media/NTFS/some_folder'.
     Error Code 12: Cannot allocate memory (readdir_r)

If I ignore this error, FFS found 700159 elements and syncs them normally.
The directory '/media/NTFS/some_folder' contains 105177 files for 1.8 Gb (from 4 to 60 Kb per file).

The parent drive of a directory is mounted by ntfs-3g (fuseblk).

Which program produces 'Error Code 12: Cannot allocate memory (readdir_r)' error? Is this behaviour comes from FFS or from ntfs-3g? How can solve the problem?

Question information

Language:
English Edit question
Status:
Solved
For:
FreeFileSync Edit question
Assignee:
No assignee Edit question
Solved by:
Zenju
Solved:
Last query:
Last reply:
Revision history for this message
Norbert (nrbrtx) said : 		#1

My machine has 8 Gb of RAM, 4 Gb is free during FFS sync.
So there is enough free memory.

Revision history for this message
Best Zenju (zenju) said : 		#2

The error message is coming directly from the system call "readdir_r". As for all failed memory allocations there are to main causes: 1. not enough total memory. 2. not enough contiguous memory. If your memory was highly fragmented at the time of the error, you may have suffered from 2.

Revision history for this message
Norbert (nrbrtx) said : 		#3

Thanks Zenju, that solved my question.