Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[David Reitter]

> This is just a random guess, but could you try the following patch and
> see if the situation changes?

Your random guess was good, thanks.
I can't reproduce the problem with the patch applied.

Note, however, that I wasn't explicitly turning off scroll-bar-mode  
after the mode change (unless the particular major modes did something  
like that). Did perhaps something in XTcondemn_scroll_bars  or  
XTjudge_scroll_bars  cause the crash? And the stack trace doesn't  
point to that at all...

Hank, can you please try the latest Aquamacs build from http://aquamacs.org/nightlies.shtml 
  and tell us whether the problem is fixed for you?

Crash when using scroll bar in Carbon port (keyboard.c:3010)

[David Reitter]

I've been getting reports of crashes both with an October-2007 build  
and with a more recent CVS build of Carbon Emacs (plus patches), which  
happen when the users scrolls around a buffer with the scroll bar. I  
can't reproduce this.

Details as provided by Hank Stevens are below, including a stack trace.

- David





Hi folks,
I have never gotten a crash with either 1.2 or 1.3rc1 using Ctrl-s to
jump around my documents. It only happens when I use the scroll bar.
Thank you!
Hank



Process:         Aquamacs Emacs [3291]
Path:            /Applications/Aquamacs Emacs.app/Contents/MacOS/ 
Aquamacs Emacs
Identifier:      org.gnu.AquamacsEmacs
Version:         Aquamacs 1.2, GNU Emacs 22 (1.2a)
Code Type:       X86 (Native)
Parent Process:  launchd [71]

Date/Time:       2008-01-03 14:17:36.648 -0500
OS Version:      Mac OS X 10.5.1 (9B18)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000007065531c
Crashed Thread:  0

Thread 0 Crashed:
0   libSystem.B.dylib             	0x919f447a __kill + 10
1   org.gnu.AquamacsEmacs         	0x000771ca fatal_error_signal + 152  
(emacs.c:399)
2   libSystem.B.dylib             	0x919f297b _sigtramp + 43
3   ???                           	0xffffffff 0 + 4294967295
4   org.gnu.AquamacsEmacs         	0x00083e41 read_char + 4950  
(keyboard.c:3010)
5   org.gnu.AquamacsEmacs         	0x0008503d read_key_sequence + 2118  
(keyboard.c:9156)
6   org.gnu.AquamacsEmacs         	0x0008685c command_loop_1 + 494  
(keyboard.c:1624)
7   org.gnu.AquamacsEmacs         	0x000e498e internal_condition_case  
+ 245 (eval.c:1483)
8   org.gnu.AquamacsEmacs         	0x00078fd9 command_loop_2 + 68  
(keyboard.c:1334)
9   org.gnu.AquamacsEmacs         	0x000e487f internal_catch + 171  
(eval.c:1223)
10  org.gnu.AquamacsEmacs         	0x00078db3 command_loop + 170  
(keyboard.c:1313)
11  org.gnu.AquamacsEmacs         	0x00078e67 recursive_edit_1 + 140  
(keyboard.c:1010)
12  org.gnu.AquamacsEmacs         	0x00078f56 Frecursive_edit + 139  
(keyboard.c:1072)
13  org.gnu.AquamacsEmacs         	0x0007813b main + 2311 (emacs.c:1772)
14  org.gnu.AquamacsEmacs         	0x00002206 _start + 228 (crt.c:272)
15  org.gnu.AquamacsEmacs         	0x00002121 start + 41

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000  ebx: 0x0007713f  ecx: 0xbfffef8c  edx: 0x919f447a
  edi: 0x02800409  esi: 0x0000000b  ebp: 0xbfffefa8  esp: 0xbfffef8c
   ss: 0x0000001f  efl: 0x00000286  eip: 0x919f447a   cs: 0x00000007
   ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
  cr2: 0x000ae33c

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0x9663c000 - 0x966eeffb  libcrypto.0.9.7.dylib ??? (???)  
<330b0e48e67faffc8c22dfc069ca7a47> /usr/lib/libcrypto.0.9.7.dylib
0x966ef000 - 0x96734fef  com.apple.Metadata 10.5.0 (398)  
<96d857e02d199e768919047b28ec95b3> /System/Library/Frameworks/ 
CoreServices.framework/Versions/A/Frameworks/Metadata.framework/ 
Versions/A/Metadata
0x96769000 - 0x96784ffb  libPng.dylib ??? (???)  
<85ca18172d7a4b5a5be3574e4e879880> /System/Library/Frameworks/ 
ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/ 
Versions/A/Resources/libPng.dylib
0x96785000 - 0x96790fe7  libCSync.A.dylib ??? (???)  
<482d16ba55f91a5dc05f78cc9db707a7> /System/Library/Frameworks/ 
ApplicationServices.framework/Versions/A/Frameworks/ 
CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x96791000 - 0x96aa2fe2  com.apple.QuickTime 7.3.1 (7.3.1)  
<697ff9cc466d4388840c3b733af9c6d7> /System/Library/Frameworks/ 
QuickTime.framework/Versions/A/QuickTime
0x96b09000 - 0x96b9bff3  com.apple.ApplicationServices.ATS 3.0 (???)  
<d994740916f7aa6495a3372def0e7b61> /System/Library/Frameworks/ 
ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/ 
Versions/A/ATS
0x96c7d000 - 0x96cf4fe3  com.apple.CFNetwork 220 (220)  
<0ae8fbcbadcb9bd8d673aa4531c0fcfc> /System/Library/Frameworks/ 
CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/ 
Versions/A/CFNetwork
0x96cf5000 - 0x96d1cfff  libcups.2.dylib ??? (???)  
<6b61eb99e6f5dd2d66cd224e9f82427d> /usr/lib/libcups.2.dylib
0xfffe8000 - 0xfffebfff  libobjc.A.dylib ??? (???) /usr/lib/ 
libobjc.A.dylib
0xffff0000 - 0xffff1780  libSystem.B.dylib ??? (???) /usr/lib/ 
libSystem.B.dylib


SYSTEM
Model: MacPro1,1, BootROM MP11.005D.B00, 4 processors, Dual-Core Intel  
Xeon, 3 GHz, 3 GB
Graphics: kHW_NVidiaGeForce7300GTItem, NVIDIA GeForce 7300 GT,  
spdisplays_pcie_device, 256 MB
Memory Module: DIMM Riser A/DIMM 1, 512 MB, DDR2 FB-DIMM, 667 MHz
Memory Module: DIMM Riser A/DIMM 2, 512 MB, DDR2 FB-DIMM, 667 MHz
Memory Module: DIMM Riser B/DIMM 1, 1 GB, DDR2 FB-DIMM, 667 MHz
Memory Module: DIMM Riser B/DIMM 2, 1 GB, DDR2 FB-DIMM, 667 MHz
Network Service: Ethernet 2, Ethernet, en1
PCI Card: NVIDIA GeForce 7300 GT, display, Slot-1
Serial ATA Device: ST3250820AS P, 232.89 GB
Parallel ATA Device: OPTIARC DVD RW AD-7170A
USB Device: Hub in Apple Extended USB Keyboard, Mitsumi Electric,  
full_speed, 500 mA
USB Device: Apple Optical USB Mouse, Mitsumi Electric, low_speed, 100 mA
USB Device: Apple Extended USB Keyboard, Mitsumi Electric, full_speed,  
250 mA
USB Device: hp LaserJet 1300, Hewlett-Packard, full_speed, 500 mA
FireWire Device: built-in_hub, unknown_value, unknown_speed






I seem to get crashes whenever I ask Aquamacs to move quickly  around  
the buffer.
Here is what the Console.app reported on my MacPro.


1/2/08 12:31:16 PM com.apple.launchd[71]  
([0x0-0x2b02b].org.gnu.AquamacsEmacs[380]) Exited abnormally:  
Segmentation fault

Should I try the nightly build?




I got this out of the console, and it might be more helpful (?).
Hank

1/2/08 12:54:31 PM [0x0-0x44044].org.gnu.AquamacsEmacs[803] The
process has forked and you cannot use this CoreFoundation
functionality safely. You MUST exec().
1/2/08 12:54:31 PM [0x0-0x44044].org.gnu.AquamacsEmacs[803] Break on
__THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__
() to debug.
1/2/08 12:54:31 PM [0x0-0x44044].org.gnu.AquamacsEmacs[803] The
process has forked and you cannot use this CoreFoundation
functionality safely. You MUST exec().
1/2/08 12:54:31 PM [0x0-0x44044].org.gnu.AquamacsEmacs[803] Break on
__THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__
() to debug.
1/2/08 12:54:31 PM [0x0-0x44044].org.gnu.AquamacsEmacs[803] The
process has forked and you cannot use this CoreFoundation
functionality safely. You MUST exec().
1/2/08 12:54:31 PM [0x0-0x44044].org.gnu.AquamacsEmacs[803] Break on
__THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__
() to debug.







In GNU Emacs 22.1.50.1 (i386-apple-darwin8.10.1, Carbon Version 1.6.0)
  of 2007-10-02 on plume.sr.unh.edu - Aquamacs Distribution 1.2a
Windowing system distributor `Apple Inc.', version 10.5.1
configured using `configure  '--without-x' '--prefix=/usr/local''

Important settings:
   value of $LC_ALL: nil
   value of $LC_COLLATE: nil
   value of $LC_CTYPE: nil
   value of $LC_MESSAGES: nil
   value of $LC_MONETARY: nil
   value of $LC_NUMERIC: nil
   value of $LC_TIME: nil
   value of $LANG: nil
   locale-coding-system: iso-8859-1
   default-enable-multibyte-characters: t

Major mode: PDFLaTeX/F

Minor modes in effect:
   reftex-mode: t
   TeX-fold-mode: t
   TeX-PDF-mode: t
   shell-dirtrack-mode: t
   smart-frame-positioning-mode: t
   aquamacs-styles-mode: t
   recentf-mode: t
   encoded-kbd-mode: t
   osx-key-mode: t
   longlines-mode: t
   show-paren-mode: t
   delete-selection-mode: t
   pc-selection-mode: t
   cua-mode: t
   tooltip-mode: t
   mac-input-method-mode: t
   tool-bar-mode: 0
   mouse-wheel-mode: t
   use-hard-newlines: t
   menu-bar-mode: t
   file-name-shadow-mode: t
   global-font-lock-mode: t
   blink-cursor-mode: t
   unify-8859-on-encoding-mode: t
   utf-translate-cjk-mode: t
   auto-compression-mode: t
   transient-mark-mode: t

Recent input:
<down-mouse-1> <mouse-1> C-s . 4 5 <down-mouse-1> <mouse-1>
A-s <menu-bar> <help-menu> <report-emacs-bug>

Recent messages:
Applying style hooks... done
Sorting environment...
Removing duplicates... done
noweb-font-lock mode: use `M-x noweb-font-lock-describe-mode' for more
info
noweb mode: use `M-x noweb-describe-mode' for further information
Setting up syntax table
Applying style hooks... done
Mark saved where search started
(No changes need to be saved)
Loading emacsbug...done

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[David Reitter]

[-- Attachment #1: Type: text/plain, Size: 751 bytes --]

Further to my message below, I have reproduced the bug by loading the  
attached file, making the frame small and scrolling back and forth  
with the scrollbar. The two stack traces looks different, though.

The mode-line reads PDFLaTeX/F Ref BCite ll Noweb NWFL for this file.

The problem appears to be related to Noweb Mode, which seems to come  
with R-mode. It switches back and forth between LaTeX-mode (from  
AUCTeX), fundamental-mode and ESS-mode. (Problem is only reproducible  
is noweb-mode is on.)

Secondly, changing the major mode triggers a few things in `aquamacs- 
styles-mode': different faces and frame parameters are applied to the  
frame that displays a window with that buffer. But of course that  
shouldn't crash Emacs...




[-- Attachment #2: trial.Rnw --]
[-- Type: application/octet-stream, Size: 160 bytes --]

\documentclass{article}

\SweaveOpts{eval=true, echo=true}

%

\begin{document}

type stuff here.

Switch to R
<<>>=
2+2
@
Switch back to latex.
\end{document}

[-- Attachment #3: Type: text/plain, Size: 5539 bytes --]




Process:         Aquamacs Emacs [3138]
Path:            /Applications/Aquamacs Emacs.app/Contents/MacOS/ 
Aquamacs Emacs
Identifier:      org.gnu.AquamacsEmacs
Version:         Aquamacs 1.2CVS, GNU Emacs 22 (1.2a)
Code Type:       X86 (Native)
Parent Process:  launchd [107]

Date/Time:       2008-01-03 20:05:46.982 +0000
OS Version:      Mac OS X 10.5.1 (9B18)
Report Version:  6

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread:  0

Thread 0 Crashed:
0   libSystem.B.dylib             	0x94a7d47a __kill + 10
1   org.gnu.AquamacsEmacs         	0x000775fb fatal_error_signal + 152  
(emacs.c:399)
2   libSystem.B.dylib             	0x94a7b97b _sigtramp + 43
3   ???                           	0xffffffff 0 + 4294967295
4   libSystem.B.dylib             	0x94af4782 raise + 26
5   libSystem.B.dylib             	0x94b03d3f abort + 73
6   org.gnu.AquamacsEmacs         	0x000d1fb3 wrong_type_argument + 28  
(data.c:121)
7   org.gnu.AquamacsEmacs         	0x0000ca9a do_switch_frame + 125  
(frame.c:647)
8   org.gnu.AquamacsEmacs         	0x0000cd18 Fhandle_switch_frame +  
84 (frame.c:778)
9   org.gnu.AquamacsEmacs         	0x000e6bcd Ffuncall + 958 (eval.c: 
2998)
10  org.gnu.AquamacsEmacs         	0x000e3c4b Fcall_interactively +  
5844 (callint.c:862)
11  org.gnu.AquamacsEmacs         	0x0007ead5 Fcommand_execute + 270  
(keyboard.c:10065)
12  org.gnu.AquamacsEmacs         	0x00086e82 command_loop_1 + 970  
(keyboard.c:1879)
13  org.gnu.AquamacsEmacs         	0x000e4e22 internal_condition_case  
+ 245 (eval.c:1483)
14  org.gnu.AquamacsEmacs         	0x0007940d command_loop_2 + 68  
(keyboard.c:1334)
15  org.gnu.AquamacsEmacs         	0x000e4d13 internal_catch + 171  
(eval.c:1223)
16  org.gnu.AquamacsEmacs         	0x000791e7 command_loop + 170  
(keyboard.c:1313)
17  org.gnu.AquamacsEmacs         	0x0007929b recursive_edit_1 + 140  
(keyboard.c:1010)
18  org.gnu.AquamacsEmacs         	0x0007938a Frecursive_edit + 139  
(keyboard.c:1072)
19  org.gnu.AquamacsEmacs         	0x0007856c main + 2311 (emacs.c:1772)
20  org.gnu.AquamacsEmacs         	0x00002146 _start + 228 (crt.c:272)
21  org.gnu.AquamacsEmacs         	0x00002061 start + 41

Thread 1:
0   libSystem.B.dylib             	0x94a5ef5a select$DARWIN_EXTSN + 10
1   libSystem.B.dylib             	0x94a40075 _pthread_start + 321
2   libSystem.B.dylib             	0x94a3ff32 thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
   eax: 0x00000000  ebx: 0x00077570  ecx: 0xbffff03c  edx: 0x94a7d47a
   edi: 0x02826819  esi: 0x00000006  ebp: 0xbffff058  esp: 0xbffff03c
    ss: 0x0000001f  efl: 0x00000282  eip: 0x94a7d47a   cs: 0x00000007
    ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
   cr2: 0x0c36d000


second crash:

Process:         Aquamacs Emacs [3697]
Path:            /Applications/Aquamacs Emacs.app/Contents/MacOS/ 
Aquamacs Emacs
Identifier:      org.gnu.AquamacsEmacs
Version:         Aquamacs 1.2CVS, GNU Emacs 22 (1.2a)
Code Type:       X86 (Native)
Parent Process:  launchd [107]

Date/Time:       2008-01-03 20:10:06.132 +0000
OS Version:      Mac OS X 10.5.1 (9B18)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000
Crashed Thread:  0

Thread 0 Crashed:
0   libSystem.B.dylib             	0x94a7d47a __kill + 10
1   org.gnu.AquamacsEmacs         	0x000775fb fatal_error_signal + 152  
(emacs.c:399)
2   libSystem.B.dylib             	0x94a7b97b _sigtramp + 43
3   ???                           	0xffffffff 0 + 4294967295
4   org.gnu.AquamacsEmacs         	0x0008428b read_char + 4950  
(keyboard.c:3010)
5   org.gnu.AquamacsEmacs         	0x00085487 read_key_sequence + 2118  
(keyboard.c:9164)
6   org.gnu.AquamacsEmacs         	0x00086ca6 command_loop_1 + 494  
(keyboard.c:1624)
7   org.gnu.AquamacsEmacs         	0x000e4e22 internal_condition_case  
+ 245 (eval.c:1483)
8   org.gnu.AquamacsEmacs         	0x0007940d command_loop_2 + 68  
(keyboard.c:1334)
9   org.gnu.AquamacsEmacs         	0x000e4d13 internal_catch + 171  
(eval.c:1223)
10  org.gnu.AquamacsEmacs         	0x000791e7 command_loop + 170  
(keyboard.c:1313)
11  org.gnu.AquamacsEmacs         	0x0007929b recursive_edit_1 + 140  
(keyboard.c:1010)
12  org.gnu.AquamacsEmacs         	0x0007938a Frecursive_edit + 139  
(keyboard.c:1072)
13  org.gnu.AquamacsEmacs         	0x0007856c main + 2311 (emacs.c:1772)
14  org.gnu.AquamacsEmacs         	0x00002146 _start + 228 (crt.c:272)
15  org.gnu.AquamacsEmacs         	0x00002061 start + 41

Thread 1:
0   libSystem.B.dylib             	0x94a5ef5a select$DARWIN_EXTSN + 10
1   libSystem.B.dylib             	0x94a40075 _pthread_start + 321
2   libSystem.B.dylib             	0x94a3ff32 thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
   eax: 0x00000000  ebx: 0x00077570  ecx: 0xbfffefbc  edx: 0x94a7d47a
   edi: 0x02800409  esi: 0x0000000a  ebp: 0xbfffefd8  esp: 0xbfffefbc
    ss: 0x0000001f  efl: 0x00000286  eip: 0x94a7d47a   cs: 0x00000007
    ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
   cr2: 0x00000000




On 3 Jan 2008, at 19:39, David Reitter wrote:

> I've been getting reports of crashes both with an October-2007 build  
> and with a more recent CVS build of Carbon Emacs (plus patches),  
> which happen when the users scrolls around a buffer with the scroll  
> bar. I can't reproduce this.
>
> Details as provided by Hank Stevens are below, including a stack  
> trace.
>
> - David
>
>
>

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[Dan Nicolaescu]

David Reitter <david.reitter@gmail.com> writes:

  > Further to my message below, I have reproduced the bug by loading the
  > attached file, making the frame small and scrolling back and forth
  > with the scrollbar. The two stack traces looks different, though.
  > 
  > The mode-line reads PDFLaTeX/F Ref BCite ll Noweb NWFL for this file.
  > 
  > The problem appears to be related to Noweb Mode, which seems to come
  > with R-mode. It switches back and forth between LaTeX-mode (from
  > AUCTeX), fundamental-mode and ESS-mode. (Problem is only reproducible
  > is noweb-mode is on.)
  > 
  > Secondly, changing the major mode triggers a few things in `aquamacs-
  > styles-mode': different faces and frame parameters are applied to the
  > frame that displays a window with that buffer. But of course that
  > shouldn't crash Emacs...

Unfortunately the Carbon port is currently unsupported in the CVS HEAD
branch and it is known not to work. 
Non-developers should not try to use it. You are probably more qualified
that most people to try to debug the problem...

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[Ted Zlatanov]

On Thu, 03 Jan 2008 12:25:00 -0800 Dan Nicolaescu <dann@ics.uci.edu> wrote: 

DN> David Reitter <david.reitter@gmail.com> writes:
>> Further to my message below, I have reproduced the bug by loading the
>> attached file, making the frame small and scrolling back and forth
>> with the scrollbar. The two stack traces looks different, though.
>> 
>> The mode-line reads PDFLaTeX/F Ref BCite ll Noweb NWFL for this file.
>> 
>> The problem appears to be related to Noweb Mode, which seems to come
>> with R-mode. It switches back and forth between LaTeX-mode (from
>> AUCTeX), fundamental-mode and ESS-mode. (Problem is only reproducible
>> is noweb-mode is on.)
>> 
>> Secondly, changing the major mode triggers a few things in `aquamacs-
>> styles-mode': different faces and frame parameters are applied to the
>> frame that displays a window with that buffer. But of course that
>> shouldn't crash Emacs...

DN> Unfortunately the Carbon port is currently unsupported in the CVS HEAD
DN> branch and it is known not to work. 
DN> Non-developers should not try to use it. You are probably more qualified
DN> that most people to try to debug the problem...

I think Aquamacs is not the Emacs carbon port in CVS (it's an older
snapshot, modified in some ways), so unless the bug report is reporting
the wrong Emacs version, it should go to the Aquamacs maintainers.

Ted

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[David Reitter]

[-- Attachment #1: Type: text/plain, Size: 1539 bytes --]

On 4 Jan 2008, at 12:53, Ted Zlatanov wrote:

> On Thu, 03 Jan 2008 12:25:00 -0800 Dan Nicolaescu <dann@ics.uci.edu>  
> wrote:
>
> DN> David Reitter <david.reitter@gmail.com> writes:
>>> Secondly, changing the major mode triggers a few things in  
>>> `aquamacs-
>>> styles-mode': different faces and frame parameters are applied to  
>>> the
>>> frame that displays a window with that buffer. But of course that
>>> shouldn't crash Emacs...
>
> DN> Unfortunately the Carbon port is currently unsupported in the  
> CVS HEAD
> DN> branch and it is known not to work.
> DN> Non-developers should not try to use it. You are probably more  
> qualified
> DN> that most people to try to debug the problem...
>
> I think Aquamacs is not the Emacs carbon port in CVS (it's an older
> snapshot, modified in some ways), so unless the bug report is  
> reporting
> the wrong Emacs version, it should go to the Aquamacs maintainers.


a) this problem occurs with a 22 branch build, and according to the OP  
the problem has been occurring with different builds since October.  
See also:

 > In GNU Emacs 22.1.50.1 (i386-apple-darwin8.10.1, Carbon Version  
1.6.0)
 > of 2007-10-02 on plume.sr.unh.edu - Aquamacs Distribution 1.2a

b) I am the Aquamacs maintainer and the bug (like most bugs in our  
distribution) has been reported to me.
If people have problems identifying the bug from the stack trace, then  
I'd be happy to answer more specific questions, of course.  
Unfortunately I'm not set up to debug C level code in the Emacs core.





[-- Attachment #2: smime.p7s --]
[-- Type: application/pkcs7-signature, Size: 2193 bytes --]

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[Dan Nicolaescu]

David Reitter <david.reitter@gmail.com> writes:

  > On 4 Jan 2008, at 12:53, Ted Zlatanov wrote:
  > 
  > > On Thu, 03 Jan 2008 12:25:00 -0800 Dan Nicolaescu <dann@ics.uci.edu>
  > > wrote:
  > >
  > > DN> David Reitter <david.reitter@gmail.com> writes:
  > >>> Secondly, changing the major mode triggers a few things in
  > >>> aquamacs-
  > >>> styles-mode': different faces and frame parameters are applied to
  > >>> the
  > >>> frame that displays a window with that buffer. But of course that
  > >>> shouldn't crash Emacs...
  > >
  > > DN> Unfortunately the Carbon port is currently unsupported in the
  > > CVS HEAD
  > > DN> branch and it is known not to work.
  > > DN> Non-developers should not try to use it. You are probably more
  > > qualified
  > > DN> that most people to try to debug the problem...
  > >
  > > I think Aquamacs is not the Emacs carbon port in CVS (it's an older
  > > snapshot, modified in some ways), so unless the bug report is
  > > reporting
  > > the wrong Emacs version, it should go to the Aquamacs maintainers.
  > 
  > 
  > a) this problem occurs with a 22 branch build, and according to the OP
  > the problem has been occurring with different builds since October.
  > See also:

Well, you said "aquamacs", which is not based on the EMACS_22_BASE
branch.  EMACS_22_BASE is the only branch in CVS where Carbon is
supported.

If the bug occurs indeed on that branch I suggest you CC the Carbon
maintainer, he might want to take a look. And AFAICT nobody else does
any development on mac...

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[David Reitter]

[-- Attachment #1: Type: text/plain, Size: 538 bytes --]

On 1/4/08, Dan Nicolaescu <dann@ics.uci.edu> wrote:
>
> Well, you said "aquamacs", which is not based on the EMACS_22_BASE
> branch.  EMACS_22_BASE is the only branch in CVS where Carbon is
> supported.


What else is Aquamacs based on in your opinion?

IMHO, Aquamacs is based on snapshots of EMACS_22_BASE and we also provide
nightly builds. And that is well known among the Carbon manitainers and
we've been reporting bugs here quite successfully since its inception.

So lets do something more productive than having this discussion.

[-- Attachment #2: Type: text/html, Size: 1043 bytes --]

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[Dan Nicolaescu]

"David Reitter" <david.reitter@gmail.com> writes:

  > On 1/4/08, Dan Nicolaescu <dann@ics.uci.edu > wrote:
  > 
  >     Well, you said "aquamacs", which is not based on the EMACS_22_BASE
  >     branch.  EMACS_22_BASE is the only branch in CVS where Carbon is
  >     supported.
  > 
  >  
  > What else is Aquamacs based on in your opinion?

Sorry, I though Aquamacs was the same the Aqua(?) port, which is based on
the unicode-2 branch.

We get complains all the time that the Carbon port is not functional in
HEAD and unicode-2.

Again, you probably want to talk to the Carbon maintainer, nobody else
does any work on the mac port the EMACS_22_BASE branch.

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[YAMAMOTO Mitsuharu]

>>>>> On Fri, 4 Jan 2008 14:20:18 +0000, David Reitter <david.reitter@gmail.com> said:

> a) this problem occurs with a 22 branch build, and according to the
> OP the problem has been occurring with different builds since
> October.  See also:

Does this mean the problem also occurs with the (unmodified) Carbon
port of Emacs 22?  (Note that Aquamacs Emacs and Carbon Emacs Package
have some modifications in common, so even if the problem happens on
both of them, that does not necessarily imply that it is a bug in
Carbon Emacs.  Changes to the event handling part can easily break
things as you can see in the multi-tty merger.)

If so, could you describe the concrete step-by-step procedure to
reproduce the problem?  For example, `scrolls around a buffer with the
scroll bar' in the original report is not sufficiently concrete
because there are multiple ways to scroll the window using the scroll
bar (i.e., dragging the thumb, clicking above or below the thumb,
clicking arrows).

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[David Reitter]

On Jan 7, 9:30 am, YAMAMOTO Mitsuharu <mituh...@math.s.chiba-u.ac.jp>
wrote:

> Does this mean the problem also occurs with the (unmodified) Carbon
> port of Emacs 22?

Probably not, given that the bug seems to depend on frame parameters
being modified in after-change-major-mode-hook, as is done by
`aquamacs-styles-mode'.

> (Note thatAquamacsEmacs and Carbon Emacs Package
> have some modifications in common, so even if the problem happens on
> both of them, that does not necessarily imply that it is a bug in
> Carbon Emacs.

Likewise, if the bug has only been reproduced in one of them, it
doesn't mean that it is a bug in these distributions. It's a crash,
and pure ELisp code should never crash Emacs. Of course it could be a
bug in one of the patches to the C core.
This one is a bit difficult to home in on. Chances are there is a
problem with the code that sets the frame's parameters (but that
shouldn't lead to a crash).

> If so, could you describe the concrete step-by-step procedure to
> reproduce the problem?  For example, `scrolls around a buffer with the
> scroll bar' in the original report is not sufficiently concrete
> because there are multiple ways to scroll the window using the scroll
> bar (i.e., dragging the thumb, clicking above or below the thumb,
> clicking arrows).

It was enough to visit the .Rnw file (as added below in this e-mail),
resize the frame so that there is a vertical scroll bar and one can
scroll around, and then drag the thumb back and forth.

The OP has since added that scrolling with the mouse wheel alone, with
the scroll bar hidden, avoids the bug.

I found that scrolling with the keys or the mouse wheel generally
avoids reproduce the bug, and clicking above and below the thumb
doesn't bring it up either. It's only if you drag it (keep dragging up
and down).

- David


===
Hank Stevens wrote:
Hi folks,
I reported previously crashes when I used the scrollbar to move
quickly around .Rnw documents that include both LaTeX and R code. Of
course the problem didn't arise if I never used the scrollbar, but
that prevented me from moving quickly through long files. My work
around has been to hide the scrollbar (to prevent old habits) and to
rely on the mouse "wheel" in the new Mac mouse. It works very
nicely.
I suppose there must also be a quick keystroke that would allow me
to
page through a long file, but I don't know it but would like to know
what it is.

Thanks for all your efforts,
Hank



---
test.Rnw:

\documentclass{article}

\SweaveOpts{eval=true, echo=true}

%

\begin{document}

type stuff here.

Switch to R
<<>>=
2+2
@
Switch back to latex.
\end{document}

Re: Crash when using scroll bar in Carbon port (keyboard.c:3010)

[YAMAMOTO Mitsuharu]

>>>>> On Sun, 13 Jan 2008 07:41:03 -0800 (PST), David Reitter <david.reitter@gmail.com> said:

> It was enough to visit the .Rnw file (as added below in this
> e-mail), resize the frame so that there is a vertical scroll bar and
> one can scroll around, and then drag the thumb back and forth.

As a general note, please add some information about third-party
packages if they are necessary for reproducing the problem on the
standard Emacs distribution, because this is a list for bug reports
about Emacs.  Anyway, I tried ess-5.3.6 with the Carbon port, but
could not reproduce the problem.

This is just a random guess, but could you try the following patch and
see if the situation changes?

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Index: src/macterm.c
===================================================================
RCS file: /cvsroot/emacs/emacs/src/macterm.c,v
retrieving revision 1.214.2.12
diff -c -p -r1.214.2.12 macterm.c
*** src/macterm.c	8 Jan 2008 04:29:56 -0000	1.214.2.12
--- src/macterm.c	14 Jan 2008 03:03:41 -0000
*************** void
*** 5581,5588 ****
  x_scroll_bar_clear (f)
       FRAME_PTR f;
  {
!   XTcondemn_scroll_bars (f);
!   XTjudge_scroll_bars (f);
  }
  
  \f
--- 5581,5600 ----
  x_scroll_bar_clear (f)
       FRAME_PTR f;
  {
!   Lisp_Object bar;
! 
!   /* We can have scroll bars even if this is 0,
!      if we just turned off scroll bar mode.
!      But in that case we should not clear them.  */
!   if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
!     {
! #if USE_CG_DRAWING
!       mac_prepare_for_quickdraw (f);
! #endif
!       for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
! 	   bar = XSCROLL_BAR (bar)->next)
! 	Draw1Control (SCROLL_BAR_CONTROL_HANDLE (XSCROLL_BAR (bar)));
!     }
  }
  
  \f