Re: C-g crash in C-x C-f (OSX Lion)

[Jan Djärv]

Hello.

I can't reproduce this either.  Can you reproduce this?  Does it happen with -Q?
Can you compile Emacs with debugging enabled and run Emacs in gdb?

        Jan D.

12 dec 2011 kl. 14:11 skrev Carsten Mattner:

> As previously mentioned Emacs.app reliably crashes for me
> on Lion in trunk builds.
> 
> Crash happens if I was waiting in C-x C-f and at some point
> later after having switched away and back to Emacs.app
> decide to cancel the the file open by pressing C-g.
> 
> This time around I saved the OS-provided stacktrace.
> 
> Is this of any use to track down the source?
> 
> Identifier:      org.gnu.Emacs
> Version:         Version 24.0.92 (9.0)
> Code Type:       X86 (Native)
> 
> Date/Time:       2011-12-12 13:58:40.521 +0100
> OS Version:      Mac OS X 10.7.2 (11C74)
> Report Version:  9
> 
> Interval Since Last Report:          2175927 sec
> Crashes Since Last Report:           110
> Per-App Interval Since Last Report:  126761 sec
> Per-App Crashes Since Last Report:   3
> 
> Crashed Thread:  0  Dispatch queue: com.apple.main-thread
> 
> Exception Type:  EXC_BAD_ACCESS (SIGABRT)
> Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000026ce000
> 
> VM Regions Near 0x26ce000:
>    __DATA 0000000001b00000-0000000001c00000 [ 1024K] rw-/rw- SM=COW
>    /Users/USER/*/Emacs.app/Contents/MacOS/Emacs
> --> MALLOC_SMALL 0000000002000000-0000000002706000 [ 7192K] rw-/rwx SM=ZER
> 
>    MALLOC_SMALL 0000000002706000-0000000002721000 [  108K] rw-/rwx SM=PRV
> 
> Application Specific Information:
> objc[47317]: garbage collection is OFF
> abort() called
> 
> Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
> 0   libsystem_kernel.dylib            0x94fa5332 __kill + 10
> 1   libsystem_kernel.dylib            0x94fa4932 kill$UNIX2003 + 32
> 2   org.gnu.Emacs                     0x0009e004 fatal_error_signal + 324
> 3   libsystem_c.dylib                 0x9adc659b _sigtramp + 43
> 4   ???                               0xffffffff 0 + 4294967295
> 5   libsystem_c.dylib                 0x9ad61bdd abort + 167
> 6   org.gnu.Emacs                     0x0018433d ns_term_shutdown + 141
> 7   org.gnu.Emacs                     0x0009bd67 shut_down_emacs + 247
> 8   org.gnu.Emacs                     0x0009dfce fatal_error_signal + 270
> 9   libsystem_c.dylib                 0x9adc659b _sigtramp + 43
> 10  ???                               0xffffffff 0 + 4294967295
> 11  org.gnu.Emacs                     0x000ab8ae read_char + 6174
> 12  org.gnu.Emacs                     0x000af005 read_key_sequence + 7093
> 13  org.gnu.Emacs                     0x000b0d7b command_loop_1 + 5915
> 14  org.gnu.Emacs                     0x00117256 internal_condition_case + 230
> 15  org.gnu.Emacs                     0x000af645 command_loop_2 + 69
> 16  org.gnu.Emacs                     0x0011731f internal_catch + 175
> 17  org.gnu.Emacs                     0x000b1371 recursive_edit_1 + 353
> 18  org.gnu.Emacs                     0x000cdf4d read_minibuf + 2381
> 19  org.gnu.Emacs                     0x000cb470 Fread_from_minibuffer + 224
> 20  org.gnu.Emacs                     0x00113d68 Ffuncall + 1128
> 21  org.gnu.Emacs                     0x0014d7bd exec_byte_code + 1693
> 22  org.gnu.Emacs                     0x001164ed funcall_lambda + 349
> 23  org.gnu.Emacs                     0x00113dd5 Ffuncall + 1237
> 24  org.gnu.Emacs                     0x000ccfb8 Fcompleting_read + 104
> 25  org.gnu.Emacs                     0x00113d68 Ffuncall + 1128
> 26  org.gnu.Emacs                     0x0014d7bd exec_byte_code + 1693
> 27  org.gnu.Emacs                     0x001164ed funcall_lambda + 349
> 28  org.gnu.Emacs                     0x00113dd5 Ffuncall + 1237
> 29  org.gnu.Emacs                     0x0014d7bd exec_byte_code + 1693
> 30  org.gnu.Emacs                     0x001164ed funcall_lambda + 349
> 31  org.gnu.Emacs                     0x00113dd5 Ffuncall + 1237
> 32  org.gnu.Emacs                     0x0014d7bd exec_byte_code + 1693
> 33  org.gnu.Emacs                     0x001166f6 funcall_lambda + 870
> 34  org.gnu.Emacs                     0x00113dd5 Ffuncall + 1237
> 35  org.gnu.Emacs                     0x0014d7bd exec_byte_code + 1693
> 36  org.gnu.Emacs                     0x0014d111 Fbyte_code + 65
> 37  org.gnu.Emacs                     0x00115a1b eval_sub + 1547
> 38  org.gnu.Emacs                     0x001134f2 Feval + 98
> 39  org.gnu.Emacs                     0x0010ed95 Fcall_interactively + 677
> 40  org.gnu.Emacs                     0x00113bee Ffuncall + 750
> 41  org.gnu.Emacs                     0x00116b21 call3 + 49
> 42  org.gnu.Emacs                     0x0009eaa0 Fcommand_execute + 560
> 43  org.gnu.Emacs                     0x000afe7f command_loop_1 + 2079
> 44  org.gnu.Emacs                     0x00117256 internal_condition_case + 230
> 45  org.gnu.Emacs                     0x000af645 command_loop_2 + 69
> 46  org.gnu.Emacs                     0x0011731f internal_catch + 175
> 47  org.gnu.Emacs                     0x000b132c recursive_edit_1 + 284
> 48  org.gnu.Emacs                     0x000a1456 Frecursive_edit + 214
> 49  org.gnu.Emacs                     0x0009de72 main + 6802
> 50  org.gnu.Emacs                     0x00002a15 start + 53
> 
> Thread 1:: Dispatch queue: com.apple.libdispatch-manager
> 0   libsystem_kernel.dylib            0x94fa690a kevent + 10
> 1   libdispatch.dylib                 0x90471c58 _dispatch_mgr_invoke + 969
> 2   libdispatch.dylib                 0x904706a7 _dispatch_mgr_thread + 53
> 
> Thread 2:
> 0   libsystem_kernel.dylib            0x94fa602e __workq_kernreturn + 10
> 1   libsystem_c.dylib                 0x9ad70ccf _pthread_wqthread + 773
> 2   libsystem_c.dylib                 0x9ad726fe start_wqthread + 30
> 
> Thread 0 crashed with X86 Thread State (32-bit):
>  eax: 0x00000000  ebx: 0x00000006  ecx: 0xbfffdcfc  edx: 0x94fa5332
>  edi: 0x003e2b70  esi: 0x00000006  ebp: 0xbfffdd18  esp: 0xbfffdcfc
>   ss: 0x0000001f  efl: 0x00000286  eip: 0x94fa5332   cs: 0x00000007
>   ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
>  cr2: 0xacd9d738
> Logical CPU: 0
> 
> External Modification Summary:
>  Calls made by other processes targeting this process:
>    task_for_pid: 8
>    thread_create: 0
>    thread_set_state: 0
>  Calls made by this process:
>    task_for_pid: 0
>    thread_create: 0
>    thread_set_state: 0
>  Calls made by all processes on this machine:
>    task_for_pid: 1188
>    thread_create: 0
>    thread_set_state: 0
> 
> VM Region Summary:
> ReadOnly portion of Libraries: Total=128.3M resident=41.3M(32%)
> swapped_out_or_unallocated=87.0M(68%)
> Writable regions: Total=94.5M written=1384K(1%) resident=13.1M(14%)
> swapped_out=0K(0%) unallocated=81.4M(86%)
> 
> REGION TYPE                      VIRTUAL
> ===========                      =======
> ATS (font support)                 31.8M
> ATS (font support) (reserved)         4K reserved VM address space 
> (unallocated)
> CG backing stores                  2456K
> CG image                             12K
> CG raster data                       64K
> CG shared images                   3408K
> CoreGraphics                          8K
> CoreServices                       2040K
> MALLOC                             21.6M
> MALLOC guard page                    48K
> Memory tag=240                        4K
> Memory tag=242                       12K
> Stack                              65.0M
> VM_ALLOCATE                        16.1M
> __CI_BITMAP                          80K
> __DATA                             26.7M
> __DATA/__OBJC                        80K
> __IMAGE                            1256K
> __IMPORT                              4K
> __LINKEDIT                         42.3M
> __OBJC                             1412K
> __PAGEZERO                            4K
> __TEXT                             86.0M
> __UNICODE                           544K
> mapped file                       152.2M
> shared memory                       312K
> shared pmap                        10.7M
> ===========                      =======
> TOTAL                             463.7M
> TOTAL, minus reserved VM space    463.7M