Just a reminder that with 7.0 (and 6.5.x) I could scan my entire library without any issues on my mac; and with the Windows or Linux 7.1 versions of SC I can still scan my entire library.  Anyway I did as you requested, in a slightly different way according to my music library's organization.

The short of it is that if I cut up my library into smaller pieces, I can scan each piece OK.  Here's the long of it:

- clean install of SC 7.1 (removed all SC files prior to installation as per FAQ)
- scan of lossless folder = OK
(Total Tracks: 585, Total Albums: 62, scan time = 00:03:17).

- scan (clear library and rescan everything) of lossy folder = FAIL 
(no mDNS crash (Misc.pm line 416 problem), scan time = 00:15:53)

- scan (clear library and rescan everything) of lossy/_Compilations_and_labels_and_OSTs = FAIL
(no sign of progress after 45 minutes (usually my whole library is scanned within this time); stopped SC from SC prefpane in System Preferences, and noticed another mDNS crash of the same time)

- restarted SC and this time the scan progress bar (retry lossy/_Compilations_and_labels_and_OSTs) updates...
- scan of lossy/_Compilations_and_labels_and_OSTs = FAIL
(SC suggests success: 
Directory Scan   (4021  of  4021)   Complete  00:23:15
Playlist Scan   (2  of  2)   Complete  00:00:04
Merge Various Artists   (230  of  230)   Complete  00:00:07
Artwork Scan   (7  of  336)   Running  00:00:08
All Tomorrow's Parties 3.0 (Disc 2 of 2)
SqueezeCenter has finished scanning your music collection.00:23:34
but the scanner log file tells another story:
[08-08-05 23:57:55.5291] main::main (219) Error: Failed when running main scan: [spec is not a valid file specification at /Library/PreferencePanes/SqueezeCenter.prefPane/Contents/server/Slim/Utils/Misc.pm line 416.
]
[08-08-05 23:57:55.9985] main::main (220) Error: Skipping post-process & Not updating lastRescanTime!
[08-08-05 23:57:56.8994] Slim::Schema::Storage::dbh (33) Warning: Issuing rollback() for database handle being DESTROY'd without explicit disconnect() at /Library/PreferencePanes/SqueezeCenter.prefPane/Contents/server/Slim/Schema/Storage.pm line 33.
- However library is NOT empty, so main scan actually succeeded?

- stopped SC (another mDNS crash...), temporarily moved _Compilations_and_labels_and_OSTs out of lossy, restarted SC
- scan (clear library and rescan everything) of lossy (without _Compilations_and_labels_and_OSTs) = SUCCESS
(SC suggests success:
Directory Scan   (13690  of  13690)   Complete  00:31:29
Playlist Scan   (2  of  2)   Complete  00:00:01
Merge Various Artists   (1318  of  1318)   Complete  00:00:24
Artwork Scan   (1322  of  1322)   Complete  00:07:02
Database Optimize    Complete  00:00:12
SqueezeCenter has finished scanning your music collection.00:39:08)

- stopped SC (another mDNS crash...), restarted SC
- scan (clear library and rescan everything) of _Compilations_and_labels_and_OSTs (in new - temporary - place on disk) = FAIL
(Directory Scan    Running  00:00:59 
SqueezeCenter has finished scanning your music collection.00:00:59
[08-08-06 01:10:20.5609] main::main (219) Error: Failed when running main scan: [spec is not a valid file specification at /Library/PreferencePanes/SqueezeCenter.prefPane/Contents/server/Slim/Utils/Misc.pm line 416.
]
[08-08-06 01:10:20.5613] main::main (220) Error: Skipping post-process & Not updating lastRescanTime!)

- stopped SC (2 more mDNS crashes...), restarted SC
(no sign of progress after 15 minutes - no sign of directory traversal; stopped SC from SC prefpane in System Preferences, and noticed another mDNS crash of the same time)
- restarted SC and this time the scan progress bar (retry _Compilations_and_labels_and_OSTs in new - temporary - place on disk) updates...
- scan of _Compilations_and_labels_and_OSTs (in new - temporary - place on disk) = SUCCESS!!
(Directory Scan   (4021  of  4021)   Complete  00:14:36
Playlist Scan   (2  of  2)   Complete  00:00:02
Merge Various Artists   (230  of  230)   Complete  00:00:04
Artwork Scan   (336  of  336)   Complete  00:02:27
Database Optimize    Complete  00:00:06
SqueezeCenter has finished scanning your music collection.00:17:15)
- Conclusion is that it is the volume of files causing the problem so must be a bug in SC 7.1, introduced between 7.0 and 7.0.1


=== after updating bug report on support site ===
- moved compils folder back to original place
- started SC
- updated path of library to slim folder (i.e. my entire library), and selected scan (clear library and rescan everything) of slim = FAIL (usual error)
- stopped SC
- restarted SC and this time the scan progress bar (slim folder, i.e. my entire library) updates (shows directory traversal) after about 6 minutes..
- fail :(
Directory Scan   (317  of  18278)   Running  00:08:18
/Volumes/audio/slim/0_lossless/Mercury Rev/Deserter's Songs/12. [untitled].flac
SqueezeCenter has finished scanning your music collection.00:08:18
- but scan continues!!
- SUCESS?  (next morning):
Total Tracks: 19,549
Total Albums: 1,702
Total Artists: 2,723
Total Genres: 68
Total Playing Time: 1604:26:57
Music Scan Details
Directory Scan   (18278  of  18278)   Complete  00:49:49
Playlist Scan   (2  of  2)   Complete  00:00:00
Merge Various Artists   (1591  of  1591)   Complete  00:00:31
Artwork Scan   (1701  of  1701)   Complete  00:09:26
Database Optimize    Complete  00:00:17
SqueezeCenter has finished scanning your music collection.01:00:03
 

