[tor-bugs] #17395 [Tor Browser]: Crash on OS X 10.11 Tor Browser 5.0.3

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#17395: Crash on OS X 10.11 Tor Browser 5.0.3
-------------------------+-----------------------------------
 Reporter:  sordid       |          Owner:
     Type:  defect       |         Status:  needs_information
 Priority:  Medium       |      Milestone:
Component:  Tor Browser  |        Version:
 Severity:  Major        |     Resolution:
 Keywords:  tbb-crash    |  Actual Points:
Parent ID:               |         Points:
  Sponsor:               |
-------------------------+-----------------------------------

Comment (by cypherpunks):

 Replying to [ticket:17395 sordid]:

 > Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
 > Exception Codes:       KERN_INVALID_ADDRESS at 0x000065e5e5e5e5f8
 > Exception Note:        EXC_CORPSE_NOTIFY
 >
 > VM Regions Near 0x65e5e5e5e5f8:
 >     VM_ALLOCATE            000000018a900000-000000018ee00000 [ 69.0M]
 rw-/rwx SM=PRV
 > -->
 >     STACK GUARD            0000700000000000-0000700000001000 [    4K]
 ---/rwx SM=NUL  stack guard for thread 47
 >
 > Application Specific Information:
 > objc_msgSend() selector name: hash
 >
 >
 > Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
 > 0   libobjc.A.dylib                 0x00007fff8d7f3d5d objc_msgSend + 29
 > 1   com.apple.Foundation            0x00007fff9423a7e4
 -[NSConcreteMapTable objectForKey:] + 42
 > 2   com.apple.UIFoundation          0x00007fff9cbf289d
 +[__NSFontTypefaceInfo typefaceInfoForPostscriptName:options:] + 155
 > 3   com.apple.UIFoundation          0x00007fff9cbf9677
 __NSGetMetaFontInstance + 1099
 > 4   XUL                             0x000000010237c615 0x101bd5000 +
 8025621

 Express analysis tracking it to [https://mxr.mozilla.org/mozilla-
 esr38/source/gfx/thebes/gfxMacPlatformFontList.mm#894
 gfxMacPlatformFontList::GetDefaultFont]

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17395#comment:2>
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