Ticket #172 (closed Defect: invalid)
sapphire b6 & b6.1: Freeze followed by Front Row crash when run as Standard User
| Reported by: | srcshelton@… | Owned by: | |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | Other | Version: | 1.0b6.1 |
| Keywords: | Cc: |
Description
I have a Mac Mini (2,1) with two users: my Admin user, and then a 'Media Centre' Standard User for all to use to watch movies.
Running sapphire 1.0b6 and 1.0b6.1 as my Admin user is completely fine - no problems.
However, when Front Row starts as the Standard User, I do see the Sapphire "S" icon. However, if I select this then everything freezes up for several minutes, at which point I'm dropped back to the desktop.
The crash-logs all say:
Process: Front Row [7632] Path: /System/Library/CoreServices/Front Row.app/Contents/MacOS/Front Row Identifier: com.apple.frontrow Version: 2.1.3 (2.1.3) Build Info: FrontRow-2330000~5 Code Type: X86 (Native) Parent Process: launchd [203] Date/Time: 2008-05-15 22:38:15.609 +0100 OS Version: Mac OS X 10.5.2 (9C7010) Report Version: 6 Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000004 Crashed Thread: 0 Thread 0 Crashed: 0 com.apple.CoreFoundation 0x9198e85d _CFArrayReplaceValues + 2397 1 com.apple.CoreFoundation 0x91a68f3b -[__NSPlaceholderArray initWithObjects:count:] + 363 2 com.apple.CoreFoundation 0x91a6bd34 +[NSArray array] + 68 3 com.apple.Foundation 0x91378e78 _NSDirectoryContentsFromCarbonError + 56 4 com.apple.Foundation 0x91378ba0 -[NSFileManager directoryContentsAtPath:matchingExtension:options:keepExtension:error:] + 320 5 com.apple.Foundation 0x91378a57 -[NSFileManager directoryContentsAtPath:matchingExtension:options:keepExtension:] + 71 6 com.apple.Foundation 0x91378a05 -[NSFileManager directoryContentsAtPath:] + 69 7 ...frontrow.appliance.Sapphire 0x129ca491 -[SapphireDirectoryMetaData reloadDirectoryContents] + 145 8 ...frontrow.appliance.Sapphire 0x129cc5b4 -[SapphireDirectoryMetaData invokeRecursivelyOnFiles:withPredicate:] + 36 9 ...frontrow.appliance.Sapphire 0x129cc606 -[SapphireDirectoryMetaData invokeRecursivelyOnFiles:withPredicate:] + 118 <...> 511 ...frontrow.appliance.Sapphire 0x129cc606 -[SapphireDirectoryMetaData invokeRecursivelyOnFiles:withPredicate:] + 118
Is there any other useful data I could provide to help to diagnose this problem?
(The figure 511 seems suspicious - is 512 a hard system limit? Why does this crash seemingly affect only Standard Users - if it were a permissions issue, I'm assuming that that would have been detected without crashing? I guess that the delay between selecting the Sapphire icon and the crash is the time it takes for the attempts to recursively scan the filesystem...)
One thing worth mentioning: In 'Media Centre's home directory is:
macmini:~ Media$ ls -l ~/Movies/ total 56 lrwxr-xr-x 1 Media Media 27 Nov 5 2007 DVDs -> /Volumes/Storage/Media/DVDs lrwxr-xr-x 1 root Media 8 Feb 4 23:04 Drives -> /Volumes lrwxr-xr-x 1 Media Media 28 Dec 5 17:38 Films -> /Volumes/Storage/Media/Films lrwxr-xr-x 1 Media Media 25 Dec 5 17:38 Incoming -> /Volumes/Storage/Incoming lrwxr-xr-x 1 Media Media 35 Dec 12 00:22 Music Videos -> /Volumes/Storage/Media/Music Videos lrwxr-xr-x 1 Media Media 33 Nov 5 2007 Television -> /Volumes/Storage/Media/Television lrwxr-xr-x 1 Media Media 29 Dec 5 17:38 Videos -> /Volumes/Storage/Media/Videos
... where Storage is an auto-mounted NFS share. Could the 'Drives' symlink be creating a loop?
Looks like a stack overflow... Admin users have different limits on the stack size, which could be the difference. Look at the "launchctl limit" command to see the current limits, and I think it can change them too, but it's been a while since I fiddled with these.
Definitely see if there is a symlink loop. In theory, Sapphire should detect this, but that code has never been fully tested, so it may not work.