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Black Ink hang

edited November 2007 in Black Ink
I was studying today's NYSun puzzle (a cryptic, which I never do) when I got the spinning beachball as Black Ink chewed up my CPU. Here's a process sample from Activity Monitor:

Sampling process 402 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling Black Ink (pid 402) every 1 millisecond
Call graph:
794 Thread_2503
794 0x2430
794 0x272c
794 NSApplicationMain
794 -[NSApplication run]
794 0x201d4
794 -[NSApplication sendEvent:]
794 -[NSWindow sendEvent:]
794 0xee14
225 0x187c8
130 objc_msgSend
130 objc_msgSend
20 0x172d8
20 0x172d8
17 0x172f8
17 0x172f8
11 0x172f0
11 0x172f0
10 0x172d4
10 0x172d4
9 dyld_stub_objc_msgSend
9 dyld_stub_objc_msgSend
8 0x172f4
8 0x172f4
7 0x172e0
7 0x172e0
7 0x187d8
7 0x187d8
4 0x172fc
4 0x172fc
2 0x172e8
2 0x172e8
212 0x18780
98 objc_msgSend_stret
98 objc_msgSend_stret
24 0x187a8
24 0x187a8
17 0x1879c
17 0x1879c
12 dyld_stub_objc_msgSend_stret
12 dyld_stub_objc_msgSend_stret
11 0x187c4
11 0x187c4
9 0x187b0
9 0x187b0
8 0x187b8
8 0x187b8
7 0x18790
7 0x18790
5 0x187ac
5 0x187ac
5 0x187b4
5 0x187b4
4 0x1878c
4 0x1878c
4 0x18794
4 0x18794
3 0x187a0
3 0x187a0
3 0x187c0
3 0x187c0
2 0x18788
2 0x18788
188 0x187e0
123 objc_msgSend_stret
123 objc_msgSend_stret
25 dyld_stub_objc_msgSend_stret
25 dyld_stub_objc_msgSend_stret
13 0x187fc
13 0x187fc
9 0x187e8
9 0x187e8
9 0x187f0
9 0x187f0
5 0x187ec
5 0x187ec
4 0x18800
4 0x18800
163 0x18804
131 NSEqualPoints
131 NSEqualPoints
16 dyld_stub_NSEqualPoints
16 dyld_stub_NSEqualPoints
10 0x18770
10 0x18770
6 0x1877c
6 0x1877c
6 0x187cc
6 0x187cc
794 Thread_2603
794 _pthread_start
794 __NSThread__main__
794 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:]
794 CFRunLoopRunSpecific
794 mach_msg
794 mach_msg_trap
794 mach_msg_trap
794 Thread_2703
794 __CFSocketManager
794 select$DARWIN_EXTSN
794 select$DARWIN_EXTSN
794 Thread_2803
794 _pthread_start
794 CFURLCacheWorkerThread(void*)
794 CFRunLoopRunSpecific
794 mach_msg
794 mach_msg_trap
794 mach_msg_trap
794 Thread_2903
794 _pthread_start
794 __NSThread__main__
794 -[NSUIHeartBeat _heartBeatThread:]
794 -[NSConditionLock lockWhenCondition:beforeDate:]
794 -[NSCondition waitUntilDate:]
794 _pthread_cond_wait
794 semaphore_timedwait_signal_trap
794 semaphore_timedwait_signal_trap

Total number in stack (recursive counted multiple, when >=5):

Sort by top of stack, same collapsed (when >= 5):
mach_msg_trap 1588
select$DARWIN_EXTSN 794
semaphore_timedwait_signal_trap 794
objc_msgSend_stret 221
NSEqualPoints 131
objc_msgSend 130
dyld_stub_objc_msgSend_stret 37
0x187a8 24
0x172d8 20
0x172f8 17
0x1879c 17
dyld_stub_NSEqualPoints 16
0x187fc 13
0x172f0 11
0x187c4 11
0x172d4 10
0x18770 10
0x187b0 9
0x187e8 9
0x187f0 9
dyld_stub_objc_msgSend 9
0x172f4 8
0x187b8 8
0x172e0 7
0x18790 7
0x187d8 7
0x1877c 6
0x187cc 6
0x187ac 5
0x187b4 5
0x187ec 5
Sample analysis of process 402 written to file /dev/stdout

Comments

  • Thanks, Ephraim. I will take a look at this next week. If it's convenient can you send me a copy of the puzzle that you were solving?
  • Thanks - the stack log and the puzzle gave me good clues and i was able to reproduce it. The bug is in the "move to blank" code when switching orientation. I should be able to get this fixed for the next release.

    Daniel
  • In case you're curious, the bug is closely tied to the fact you were working on a cryptic. The bug is related to trying to change orientation while focused on a square that is part of only word. As you know, in traditional American crosswords, every square is part of two words, so the bug would never raise its ugly head in puzzles such as the NY Times.
  • Not quite never -- the NY Times crossword puzzle from last Thursday (Thanksgiving Day; 11/22/07) contains four words which have one letter each that isn't part of any other word. See 17D, 32A, 33A, and 38D. I've never seen this before, but apparently it's a legal puzzle layout.
  • ejalbert said:
    Not quite never -- the NY Times crossword puzzle from last Thursday (Thanksgiving Day; 11/22/07) contains four words which have one letter each that isn't part of any other word. See 17D, 32A, 33A, and 38D. I've never seen this before, but apparently it's a legal puzzle layout.
    Legal on a Thursday, that is, because that's novelty puzzle day at the New York Times.
  • ephraimephraim said:
    [quote=ejalbert]Not quite never -- the NY Times crossword puzzle from last Thursday (Thanksgiving Day; 11/22/07) contains four words which have one letter each that isn't part of any other word. See 17D, 32A, 33A, and 38D. I've never seen this before, but apparently it's a legal puzzle layout.
    Legal on a Thursday, that is, because that's novelty puzzle day at the New York Times.[/quote]
    Huh...I hadn't heard that before. Interesting. Then again, I've barely done any Thursday puzzles. I'm working my way up and I'm still not quite good enough at Wednesday puzzles to graduate to Thursdays.
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