v 14.9 Memroy allocation error

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Posts: 4
Joined: 15 Apr 2026

rm76

Hi all,

FFS show "Memory allocation failed: 18897667 bytes" during compare phase when machine has more than 40GB of free memory.

OS is Windows Server 2012R2.

Folder I'm trying to sync has 1M+ files, but there are other folders with same amount of files that I've synced successfully before.

Any ideas?
Posts: 4941
Joined: 11 Jun 2019

xCSxXenon

Any error code or message when you get this failure?
Posts: 4
Joined: 15 Apr 2026

rm76

It's just "Out of memory" (see screenshot attached)

Task Manager shows 40+ GB of free memory at the moment, and all the way during folder comaprsion attempt.
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Posts: 7566
Joined: 9 Dec 2007

Zenju

Standard 32-bit process limit:
→ 2 GB user-mode memory per process

With Large Address Aware (LAA) enabled:
→ Up to 4 GB per process on a 64-bit OS

see: viewtopic.php?t=12799#p49651

Solution: Update to Windows Server 2016 or later
Posts: 4
Joined: 15 Apr 2026

rm76

...or roll back to previous version of FFS.

Thanks!
Posts: 1246
Joined: 8 May 2006

therube

So what, you're on Win7, & with 14.9 you're relegated to the x86 version?
(And where older version could use x64.)

(Oh, yes, that's it. I should have followed the link in Zenju's post, first ;-).)
Posts: 4
Joined: 15 Apr 2026

rm76

Is there any way I can download Donation Edition v 14.5?
Posts: 4941
Joined: 11 Jun 2019

xCSxXenon

Only if you saved your installer