ViennaBeta.2809.20120423 - crash while using internal browser about vienna-rss

[TheSpyder]

Just had another crash, this time it corrupted my DB. I have a feed with 30 unread items, it refreshes fine (and even picks up new items, increasing the unread count) but when I click on it or the unread items filter the list is blank. Clicking on other feeds displays the items as expected.

When it crashed, I had just loaded Vienna and opened an unread item in the browser before it had finished refreshing the feed (it's a very slow feed).

http://pastebin.com/8RwRFH5a

[TheSpyder]

Interestingly I rolled back my entire "~/Library/Application Support/Vienna" folder to a time machine backup from last week, and I still can't see any new articles in that feed (but I can in others). I wonder if that's caused by something else in this build.

[TheSpyder]

I've started running Vienna directly from the master branch in XCode to get a better idea of where the problems are - the crash I reported is definitely fixed now, thanks, but there's a new one that again only seems to crop up when I leave the internal browser open as the active tab.

XCode stopped on ArticleListView.m line 812 (the selectedArticle function) with EXC_BAD_ACCESS. In the console output is a stack trace from right before it happened:

2012-05-17 11:33:42.160 ViennaBeta[45656:903](0 CoreFoundation 0x00007fff99b2ef56 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff8ffa7d5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff99b2ed8a +[NSException raise:format:arguments:] + 106
3 Foundation 0x00007fff9a50c71f -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 169
4 ViennaBeta 0x000000010000e58e -[Folder articleFromGuid:] + 222
5 ViennaBeta 0x000000010008e6f6 -[ArticleController applyFilter:] + 934
6 ViennaBeta 0x000000010008e32c -[ArticleController refilterArrayOfArticles] + 108
7 ViennaBeta 0x000000010008e2a3 -[ArticleController reloadArrayOfArticles] + 435
8 ViennaBeta 0x000000010009b690 -[ArticleListView refreshFolder:] + 432
9 ViennaBeta 0x000000010009b4d1 -[ArticleListView refreshCurrentFolder] + 465
10 ViennaBeta 0x000000010008d3e2 -[ArticleController refreshCurrentFolder] + 50
11 ViennaBeta 0x000000010003a8ce -[AppController handleRefreshStatusChange:] + 1150
12 Foundation 0x00007fff9a457d0e __-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_1 + 47
13 CoreFoundation 0x00007fff99ad77ba _CFXNotificationPost + 2634
14 Foundation 0x00007fff9a443fc3 -[NSNotificationCenter postNotificationName:object:userInfo:] + 65
15 ViennaBeta 0x00000001001bcab9 -[NSNotificationCenter%28NSNotificationCenterAdditions%29 postNotificationOnMainThreadWithName:object:] + 89
16 ViennaBeta 0x0000000100075893 -[RefreshManager nqRequestFinished:] + 547
17 CoreFoundation 0x00007fff99b1e70d -[NSObject performSelector:withObject:] + 61
18 ViennaBeta 0x00000001001b0f05 -[ASINetworkQueue requestFinished:] + 213
19 CoreFoundation 0x00007fff99b1e70d -[NSObject performSelector:withObject:] + 61
20 ViennaBeta 0x000000010019b9b9 -[ASIHTTPRequest reportFinished] + 329
21 CoreFoundation 0x00007fff99b1e70d -[NSObject performSelector:withObject:] + 61
22 Foundation 0x00007fff9a490d70 __NSThreadPerformPerform + 214
23 CoreFoundation 0x00007fff99a9d4f1 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
24 CoreFoundation 0x00007fff99a9cd5d __CFRunLoopDoSources0 + 253
25 CoreFoundation 0x00007fff99ac3b49 __CFRunLoopRun + 905
26 CoreFoundation 0x00007fff99ac3486 CFRunLoopRunSpecific + 230
27 HIToolbox 0x00007fff971c74d3 RunCurrentEventLoopInMode + 277
28 HIToolbox 0x00007fff971ce781 ReceiveNextEventCommon + 355
29 HIToolbox 0x00007fff971ce60e BlockUntilNextEventMatchingListInMode + 62
30 AppKit 0x00007fff9456de31 _DPSNextEvent + 659
31 AppKit 0x00007fff9456d735 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
32 AppKit 0x00007fff9456a071 -[NSApplication run] + 470
33 AppKit 0x00007fff947e6244 NSApplicationMain + 867
34 ViennaBeta 0x0000000100009ef2 main + 34
35 ViennaBeta 0x00000001000016b4 start + 52)