Open Radar

 
I use CoreServices.framework to get a conservative estimate of the number of
recoverable bytes on the specified volume. I have a timer and constantly call CSDiskSpaceGetRecoveryEstimate to do it.
Every call of CSDiskSpaceGetRecoveryEstimate leads to adding several entries to "var/log/install.log".
The entries are:
...
2017-11-20 18:48:13+02 Sergiis-MacBook-Pro deleted[388]: diskmanagement: [DMManager(PrivateMethods) clientConforms:error:]: currentThread=88223=0x1589f expectedThread=11531=0x2d0b
...
So my log is growing very fast is size.

I've debugged a lot and found out that the message came from private DiskManagement.framework from DMManager class.

Please see the attached source code.

Steps to Reproduce:

Call following code:
NSURL *url = [NSURL fileURLWithPath:@"/"];
long long size = CSDiskSpaceGetRecoveryEstimate((__bridge CFURLRef)(url));
NSLog(@"%lld", size);

Expected Results:
New warning entry is added to the /var/log/install.log.

Actual Results:
No warnings.

Version/Build:
macOS High Sierra 10.13 Beta (17A362a)

Configuration:
MacBook Pro (15-inch, 2017)
2.9 GHz Intel Core i7
16 GB 2133 MHz LPDDR3
ntel HD Graphics 630 1536 MB