Home / Browse / Steel Bank Common Lisp / Mail / Archive

Steel Bank Common Lisp

Email Archive: sbcl-help (read-only)

2007:	_Jan (45)	_Feb (51)	_Mar (69)	_Apr (48)	_May (75)	_Jun (35)	_Jul (35)	_Aug (25)	_Sep (11)	_Oct (16)	_Nov (9)	_Dec (59)
2008:	_Jan (36)	_Feb (17)	_Mar (28)	_Apr (13)	_May (1)	_Jun (25)	_Jul (24)	_Aug (52)	_Sep (19)	_Oct (52)	_Nov (43)	_Dec (80)
2010:	_Jan (26)	_Feb (45)	_Mar (55)	_Apr (59)	_May (8)	_Jun (24)	_Jul (43)	_Aug (31)	_Sep (43)	_Oct (33)	_Nov (41)	_Dec (19)
2009:	_Jan (33)	_Feb (30)	_Mar (18)	_Apr (15)	_May (29)	_Jun (58)	_Jul (48)	_Aug (35)	_Sep (52)	_Oct (59)	_Nov (46)	_Dec (31)
2005:	_Jan (24)	_Feb (32)	_Mar (39)	_Apr (65)	_May (69)	_Jun (37)	_Jul (32)	_Aug (28)	_Sep (28)	_Oct (17)	_Nov (30)	_Dec (24)
2002:	_Jan	_Feb (2)	_Mar (3)	_Apr	_May (5)	_Jun	_Jul	_Aug (2)	_Sep (3)	_Oct	_Nov	_Dec (8)
2006:	_Jan (45)	_Feb (38)	_Mar (19)	_Apr (26)	_May (19)	_Jun (29)	_Jul (13)	_Aug (26)	_Sep (53)	_Oct (46)	_Nov (40)	_Dec (85)
2012:	_Jan (9)	_Feb (22)	_Mar (17)	_Apr (16)	_May (58)	_Jun (13)	_Jul (40)	_Aug (12)	_Sep (10)	_Oct (10)	_Nov (14)	_Dec (4)
2003:	_Jan (5)	_Feb (4)	_Mar (14)	_Apr	_May (27)	_Jun (10)	_Jul (3)	_Aug (28)	_Sep (27)	_Oct (3)	_Nov (14)	_Dec (19)
2004:	_Jan (32)	_Feb (15)	_Mar (21)	_Apr (69)	_May (18)	_Jun (15)	_Jul (23)	_Aug (14)	_Sep (38)	_Oct (20)	_Nov (76)	_Dec (27)
2000:	_Jan	_Feb	_Mar	_Apr	_May (1)	_Jun (2)	_Jul (2)	_Aug	_Sep	_Oct	_Nov	_Dec (3)
2001:	_Jan	_Feb	_Mar	_Apr (1)	_May (8)	_Jun	_Jul (2)	_Aug (3)	_Sep	_Oct	_Nov	_Dec
2011:	_Jan (17)	_Feb (31)	_Mar (5)	_Apr (31)	_May (17)	_Jun (28)	_Jul (15)	_Aug (38)	_Sep (21)	_Oct (25)	_Nov (21)	_Dec (21)
2013:	_Jan (9)	_Feb (8)	_Mar (17)	_Apr (10)	_May	_Jun	_Jul	_Aug	_Sep	_Oct	_Nov	_Dec

[Sbcl-help] SBCL 1.0.28 on Windows: set_pseudo_atomic_atomic: pseudo atomic bits is 1.

From: Michael Wood <esiotrot@gm...> - 2009-05-17 12:33

I tried out this ASCII Mandelbrot set code from an old post on Bill
Clementson's blog on SBCL 1.0.28 on Windows XP and it crashed:

http://bc.tech.coop/blog/040811.html

C:\Documents and Settings\michael>sbcl
This is SBCL 1.0.28, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses.  See the CREDITS and COPYING files in the
distribution for more information.

This is experimental prerelease support for the Windows platform: use
at your own risk.  "Your Kitten of Death awaits!"
* (loop for y from -1 to 1.1 by 0.1 do
              (loop for x from -2 to 1 by 0.04 do
                   (let* ((c 126)
                          (z (complex x y))
                          (a z))
                     (loop while (< (abs
                                     (setq z (+ (* z z) a)))
                                    2)
                        while (> (decf c) 32))
                     (princ (code-char c))))
              (format t "~%"))
~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}||||||||{{{zyvrwum{|||||}}}}}}~~~~~~~~~~~~~
~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}|||||||||{{{zyxwoaqwxz{{{|||||}}}}}}~~~~~~~~~~
~~~~~~~~}}}}}}}}}}}}}}}}}}}|||||||||{{zzzyxvn    Knwyz{{{{||||}}}}}}~~~~~~~~
~~~~~~}}}}}}}}}}}}}}}}}}||||||||{{zyxuxxxwvuq     svwwyzzzyr{||}}}}}}}~~~~~~
~~~~}}}}}}}}}}}}}}}}}|||||{{{{{zzzxt>  qf             pttfqeqz{|}}}}}}}}~~~~
~~~}}}}}}}}}}}}}}|||{{{{{{{{{zzzywotn                     atyz{||}}}}}}}}~~~
~~}}}}}}}}}||||{{zwvyyyyyyyyyyyxvsP                        swvz{||}}}}}}}}~~
~}}}}|||||||{{{{zyxvpP[ur]spvwwvi                           qxz{|||}}}}}}}}~
~}||||||||{{{{{zyytun         qq                            avz{|||}}}}}}}}~
~||||||{zzzzyyxtroqb           a                            xz{{|||}}}}}}}}~
~cgcbY _TRZU9 .                                          pvxyz{{||||}}}}}}}}
~||||||{zzzzyyxtroqb           a                            xz{{|||}}}}}}}}~
~}||||||||{{{{{zyytun         qq                            avz{|||}}}}}}}}~
~}}}}|||||||{{{{zyxvpP[ur]spvwwvi                           qxz{|||}}}}}}}}~
fatal error encountered in SBCL pid 1676:
set_pseudo_atomic_atomic: pseudo atomic bits is 1.

Welcome to LDB, a low-level debugger for the Lisp runtime environment.
ldb>

What does "set_pseudo_atomic_atomic: pseudo atomic bits is 1." mean?

-- 
Michael Wood <esiotrot@...>

Re: [Sbcl-help] SBCL 1.0.28 on Windows: set_pseudo_atomic_atomic: pseudo atomic bits is 1.

From: Gábor Melis <mega@re...> - 2009-05-18 14:52

On Domingo 17 Mayo 2009, Michael Wood wrote:
> I tried out this ASCII Mandelbrot set code from an old post on Bill
> Clementson's blog on SBCL 1.0.28 on Windows XP and it crashed:
[snip]
> fatal error encountered in SBCL pid 1676:
> set_pseudo_atomic_atomic: pseudo atomic bits is 1.
>
> Welcome to LDB, a low-level debugger for the Lisp runtime
> environment. ldb>
>
> What does "set_pseudo_atomic_atomic: pseudo atomic bits is 1." mean?

Allocation happens in pseudo atomic sections. If a POSIX signal arrives 
(unlikely on windows) or GC is due the interrupted bit (1) is set. At 
the end of the pseudo atomic section if the interrupted bit is set then 
sbcl traps to handle whatever caused the section to be interrupted, at 
which point the interrupted bit is cleared. See the internals manual 
for more detail.

At the next allocation when entering PA, set_pseudo_atomic_atomic is 
called and it checks that the interrupted bit is clear. If it isn't 
then:
A) the pseudo atomic bits bookkeeping is broken or
B) GC was not triggered when it should have been

Please compile sbcl with #define QSHOW_SIGNALS 1 and report back. See 
the BUGS file for details (section "If you run into a signal related 
bug ...").

cheers,
Gabor

Re: [Sbcl-help] SBCL 1.0.28 on Windows: set_pseudo_atomic_atomic: pseudo atomic bits is 1.

From: Michael Wood <esiotrot@gm...> - 2009-05-18 18:40

Sorry, I've just realised I wasn't sending this to the list.

2009/5/18 Michael Wood <esiotrot@...>:
> 2009/5/18 Gábor Melis <mega@...>:
>> On Lunes 18 Mayo 2009, Michael Wood wrote:
>>> Thanks for your answer.
>>>
>>> 2009/5/18 Gábor Melis <mega@...>:
>>> [...]
>>>
>>> > Please compile sbcl with #define QSHOW_SIGNALS 1 and report back.
>>> > See the BUGS file for details (section "If you run into a signal
>>> > related bug ...").
> [...]
>>> gcc -g -Wall -O3 -mno-cygwin -I.  -c -o coreparse.o coreparse.c
>>> coreparse.c: In function `process_directory':
>>> coreparse.c:188: warning: implicit declaration of function
>>> `sigprocmask' coreparse.c:188: error: `SIG_BLOCK' undeclared (first
>>> use in this function) coreparse.c:188: error: (Each undeclared
>>> identifier is reported only once coreparse.c:188: error: for each
>>> function it appears in.)
>>> coreparse.c:188: error: `SIG_SETMASK' undeclared (first use in this
>>> function) coreparse.c: In function `load_core_file':
>>> coreparse.c:282: error: `SIG_BLOCK' undeclared (first use in this
>>> function) coreparse.c:282: error: `SIG_SETMASK' undeclared (first use
>>> in this function) make: *** [coreparse.o] Error 1
>>> make: Leaving directory `/home/michael/src/sbcl-1.0.28/src/runtime'
> [...]
>>
>> This should help a bit:
>>
>> --- a/src/runtime/runtime.h
>> +++ b/src/runtime/runtime.h
>> @@ -49,7 +49,7 @@
>>
>>  #if QSHOW
>>
>> -#if QSHOW_SIGNAL_SAFE
>> +#if QSHOW_SIGNAL_SAFE == 1 && !defined(LISP_FEATURE_WIN32)
>>
>>  #include <signal.h>
>>  extern sigset_t blockable_sigset;
>>
>>
>> There may be other compilation failures waiting still.
>
> Well, this time it compiled, but there were tonnes of "heap WP
> violation" messages during the compile:
>
> ; SYS:CONTRIB;SB-SPROF;SB-SPROF.FASL.NEWEST written
> ; compilation finished in 0:00:01.265
> *  violation? fault_addr=24bef010, page_index=10479
> heap WP violation? fault_addr=24be3e38, page_index=10467
> [...]
> heap WP violation? fault_addr=223c2718, page_index=194
> true
> make: Leaving directory `/home/michael/src/sbcl-1.0.28/contrib/sb-sprof'
>
> WARNING! Some of the contrib modules did not build successfully or pass
> their self-tests. Failed contribs:"
>  sb-simple-streams
>
> Hundreds of similar messages are spewed out if I "sh run-sbcl.sh".
>
> $ sh run-sbcl.sh
> (running SBCL from: .)
> This is SBCL 1.0.28, an implementation of ANSI Common Lisp.
> More information about SBCL is available at <http://www.sbcl.org/>.
>
> SBCL is free software, provided as is, with absolutely no warranty.
> It is mostly in the public domain; some portions are provided under
> BSD-style licenses.  See the CREDITS and COPYING files in the
> distribution for more information.
> /entering load_core_file(./output/sbcl.core)
> /successfully read first page of core
> /found CORE_MAGIC
> /val=0x3860, remaining_len=0x1
> /VERSION_CORE_ENTRY_TYPE_CODE case
> /new ptr=3d6ad8
> /val=0x3899, remaining_len=0x32
> /BUILD_ID_CORE_ENTRY_TYPE_CODE case
> build_id[]="kudu-michael-2009-05-18-20-20-49"
> remaining_len = 32
> ptr[0] = char = 107, expected=107
> ptr[1] = char = 117, expected=117
> ptr[2] = char = 100, expected=100
> ptr[3] = char = 117, expected=117
> ptr[4] = char = 45, expected=45
> ptr[5] = char = 109, expected=109
> ptr[6] = char = 105, expected=105
> ptr[7] = char = 99, expected=99
> ptr[8] = char = 104, expected=104
> ptr[9] = char = 97, expected=97
> ptr[10] = char = 101, expected=101
> ptr[11] = char = 108, expected=108
> ptr[12] = char = 45, expected=45
> ptr[13] = char = 50, expected=50
> ptr[14] = char = 48, expected=48
> ptr[15] = char = 48, expected=48
> ptr[16] = char = 57, expected=57
> ptr[17] = char = 45, expected=45
> ptr[18] = char = 48, expected=48
> ptr[19] = char = 53, expected=53
> ptr[20] = char = 45, expected=45
> ptr[21] = char = 49, expected=49
> ptr[22] = char = 56, expected=56
> ptr[23] = char = 45, expected=45
> ptr[24] = char = 50, expected=50
> ptr[25] = char = 48, expected=48
> ptr[26] = char = 45, expected=45
> ptr[27] = char = 50, expected=50
> ptr[28] = char = 48, expected=48
> ptr[29] = char = 45, expected=45
> ptr[30] = char = 52, expected=52
> ptr[31] = char = 57, expected=57
> /new ptr=3d6b60
> /val=0x3861, remaining_len=0x15
> /NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE case
> /process_directory(..), count=3
> /mapping 4096(0x1000) bytes at 0x22000000
> /space id = 3, free pointer = 0x22000b48
> /mapping 4096(0x1000) bytes at 0x22100000
> /space id = 2, free pointer = 0x221006c8
> /mapping 25133056(0x17f8000) bytes at 0x22300000
> /space id = 1, free pointer = 0x23af8000
> /new ptr=3d6ba4
> /val=0x3863, remaining_len=0x1
> /INITIAL_FUN_CORE_ENTRY_TYPE_CODE case
> /new ptr=3d6bb0
> /val=0x3880, remaining_len=0x2
> /new ptr=3d6bc0
> /val=0x3840, remaining_len=0x-2
> /END_CORE_ENTRY_TYPE_CODE case
> /new ptr=3d6bc0
> /about to free(header)
> /returning from load_core_file(..)
> /entering arch_install_interrupt_handlers()
> /returning from arch_install_interrupt_handlers()
> /funcalling initial_function=0x22302975
> heap WP violation? fault_addr=2245e7e4, page_index=350
> heap WP violation? fault_addr=2238c1fc, page_index=140
> heap WP violation? fault_addr=223404a4, page_index=64
> heap WP violation? fault_addr=226305b0, page_index=816
> heap WP violation? fault_addr=2237acdc, page_index=122
> heap WP violation? fault_addr=2235aba4, page_index=90
> heap WP violation? fault_addr=2235b334, page_index=91
> heap WP violation? fault_addr=224cef64, page_index=462
> heap WP violation? fault_addr=223827b4, page_index=130
> heap WP violation? fault_addr=22405178, page_index=261
> heap WP violation? fault_addr=224187d4, page_index=280
> heap WP violation? fault_addr=2238d76c, page_index=141
> heap WP violation? fault_addr=2237b0ac, page_index=123
> heap WP violation? fault_addr=2275fe78, page_index=1119
> heap WP violation? fault_addr=225f8be4, page_index=760
> heap WP violation? fault_addr=2274ba00, page_index=1099
> heap WP violation? fault_addr=224e50b0, page_index=485
> heap WP violation? fault_addr=223fdf04, page_index=253
> heap WP violation? fault_addr=224e2ad0, page_index=482
> heap WP violation? fault_addr=224ed018, page_index=493
> heap WP violation? fault_addr=22409d90, page_index=265
> heap WP violation? fault_addr=223b2f94, page_index=178
> heap WP violation? fault_addr=225d2000, page_index=722
> heap WP violation? fault_addr=2246551c, page_index=357
> heap WP violation? fault_addr=225d4008, page_index=724
> heap WP violation? fault_addr=225cf138, page_index=719
> heap WP violation? fault_addr=22722234, page_index=1058
> heap WP violation? fault_addr=223b8694, page_index=184
> heap WP violation? fault_addr=223b5004, page_index=181
> heap WP violation? fault_addr=223b785c, page_index=183
> heap WP violation? fault_addr=233d2700, page_index=4306
> heap WP violation? fault_addr=22c19c70, page_index=2329
> heap WP violation? fault_addr=2238bb44, page_index=139
> heap WP violation? fault_addr=22b7162c, page_index=2161
> heap WP violation? fault_addr=22b7d47c, page_i*

-- 
Michael Wood <esiotrot@...>

Re: [Sbcl-help] SBCL 1.0.28 on Windows: set_pseudo_atomic_atomic: pseudo atomic bits is 1.

From: Gábor Melis <mega@re...> - 2009-05-18 18:48

On Lunes 18 Mayo 2009, Michael Wood wrote:
> Sorry, I've just realised I wasn't sending this to the list.
>
> 2009/5/18 Michael Wood <esiotrot@...>:
> > 2009/5/18 Gábor Melis <mega@...>:
> >> On Lunes 18 Mayo 2009, Michael Wood wrote:
> >>> Thanks for your answer.
> >>>
> >>> 2009/5/18 Gábor Melis <mega@...>:
> >>> [...]
> >>>
> >>> > Please compile sbcl with #define QSHOW_SIGNALS 1 and report
> >>> > back. See the BUGS file for details (section "If you run into a
> >>> > signal related bug ...").
> >
> > [...]
> >
> >>> gcc -g -Wall -O3 -mno-cygwin -I.  -c -o coreparse.o coreparse.c
> >>> coreparse.c: In function `process_directory':
> >>> coreparse.c:188: warning: implicit declaration of function
> >>> `sigprocmask' coreparse.c:188: error: `SIG_BLOCK' undeclared
> >>> (first use in this function) coreparse.c:188: error: (Each
> >>> undeclared identifier is reported only once coreparse.c:188:
> >>> error: for each function it appears in.)
> >>> coreparse.c:188: error: `SIG_SETMASK' undeclared (first use in
> >>> this function) coreparse.c: In function `load_core_file':
> >>> coreparse.c:282: error: `SIG_BLOCK' undeclared (first use in this
> >>> function) coreparse.c:282: error: `SIG_SETMASK' undeclared (first
> >>> use in this function) make: *** [coreparse.o] Error 1
> >>> make: Leaving directory
> >>> `/home/michael/src/sbcl-1.0.28/src/runtime'
> >
> > [...]
> >
> >> This should help a bit:
> >>
> >> --- a/src/runtime/runtime.h
> >> +++ b/src/runtime/runtime.h
> >> @@ -49,7 +49,7 @@
> >>
> >>  #if QSHOW
> >>
> >> -#if QSHOW_SIGNAL_SAFE
> >> +#if QSHOW_SIGNAL_SAFE == 1 && !defined(LISP_FEATURE_WIN32)
> >>
> >>  #include <signal.h>
> >>  extern sigset_t blockable_sigset;
> >>
> >>
> >> There may be other compilation failures waiting still.
> >
> > Well, this time it compiled, but there were tonnes of "heap WP
> > violation" messages during the compile:
> >
> > ; SYS:CONTRIB;SB-SPROF;SB-SPROF.FASL.NEWEST written
> > ; compilation finished in 0:00:01.265
> > *  violation? fault_addr=24bef010, page_index=10479
> > heap WP violation? fault_addr=24be3e38, page_index=10467
> > [...]
> > heap WP violation? fault_addr=223c2718, page_index=194
> > true
> > make: Leaving directory
> > `/home/michael/src/sbcl-1.0.28/contrib/sb-sprof'
> >
> > WARNING! Some of the contrib modules did not build successfully or
> > pass their self-tests. Failed contribs:"
> >  sb-simple-streams
> >
> > Hundreds of similar messages are spewed out if I "sh run-sbcl.sh".
> >
> > $ sh run-sbcl.sh
> > (running SBCL from: .)
> > This is SBCL 1.0.28, an implementation of ANSI Common Lisp.
> > More information about SBCL is available at <http://www.sbcl.org/>.
> >
> > SBCL is free software, provided as is, with absolutely no warranty.
> > It is mostly in the public domain; some portions are provided under
> > BSD-style licenses.  See the CREDITS and COPYING files in the
> > distribution for more information.
> > /entering load_core_file(./output/sbcl.core)
> > /successfully read first page of core
> > /found CORE_MAGIC
> > /val=0x3860, remaining_len=0x1
> > /VERSION_CORE_ENTRY_TYPE_CODE case
> > /new ptr=3d6ad8
> > /val=0x3899, remaining_len=0x32
> > /BUILD_ID_CORE_ENTRY_TYPE_CODE case
> > build_id[]="kudu-michael-2009-05-18-20-20-49"
> > remaining_len = 32
> > ptr[0] = char = 107, expected=107
> > ptr[1] = char = 117, expected=117
> > ptr[2] = char = 100, expected=100
> > ptr[3] = char = 117, expected=117
> > ptr[4] = char = 45, expected=45
> > ptr[5] = char = 109, expected=109
> > ptr[6] = char = 105, expected=105
> > ptr[7] = char = 99, expected=99
> > ptr[8] = char = 104, expected=104
> > ptr[9] = char = 97, expected=97
> > ptr[10] = char = 101, expected=101
> > ptr[11] = char = 108, expected=108
> > ptr[12] = char = 45, expected=45
> > ptr[13] = char = 50, expected=50
> > ptr[14] = char = 48, expected=48
> > ptr[15] = char = 48, expected=48
> > ptr[16] = char = 57, expected=57
> > ptr[17] = char = 45, expected=45
> > ptr[18] = char = 48, expected=48
> > ptr[19] = char = 53, expected=53
> > ptr[20] = char = 45, expected=45
> > ptr[21] = char = 49, expected=49
> > ptr[22] = char = 56, expected=56
> > ptr[23] = char = 45, expected=45
> > ptr[24] = char = 50, expected=50
> > ptr[25] = char = 48, expected=48
> > ptr[26] = char = 45, expected=45
> > ptr[27] = char = 50, expected=50
> > ptr[28] = char = 48, expected=48
> > ptr[29] = char = 45, expected=45
> > ptr[30] = char = 52, expected=52
> > ptr[31] = char = 57, expected=57
> > /new ptr=3d6b60
> > /val=0x3861, remaining_len=0x15
> > /NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE case
> > /process_directory(..), count=3
> > /mapping 4096(0x1000) bytes at 0x22000000
> > /space id = 3, free pointer = 0x22000b48
> > /mapping 4096(0x1000) bytes at 0x22100000
> > /space id = 2, free pointer = 0x221006c8
> > /mapping 25133056(0x17f8000) bytes at 0x22300000
> > /space id = 1, free pointer = 0x23af8000
> > /new ptr=3d6ba4
> > /val=0x3863, remaining_len=0x1
> > /INITIAL_FUN_CORE_ENTRY_TYPE_CODE case
> > /new ptr=3d6bb0
> > /val=0x3880, remaining_len=0x2
> > /new ptr=3d6bc0
> > /val=0x3840, remaining_len=0x-2
> > /END_CORE_ENTRY_TYPE_CODE case
> > /new ptr=3d6bc0
> > /about to free(header)
> > /returning from load_core_file(..)
> > /entering arch_install_interrupt_handlers()
> > /returning from arch_install_interrupt_handlers()
> > /funcalling initial_function=0x22302975
> > heap WP violation? fault_addr=2245e7e4, page_index=350
> > heap WP violation? fault_addr=2238c1fc, page_index=140

These "heap WP" messages are spewed out by all builds. Once SBCL starts 
up (it's easy to miss the prompt) paste the mandelbrot code and make 
the whole output available to the list.

Cheers, Gabor

Re: [Sbcl-help] SBCL 1.0.28 on Windows: set_pseudo_atomic_atomic: pseudo atomic bits is 1.

From: Michael Wood <esiotrot@gm...> - 2009-05-18 19:22

2009/5/18 Gábor Melis <mega@...>:
[...]
> These "heap WP" messages are spewed out by all builds. Once SBCL starts
> up (it's easy to miss the prompt) paste the mandelbrot code and make
> the whole output available to the list.

OK, now things are getting interesting.  If I run the code from the
normal Windows console window (without changing the scroll-back
buffer) then I can't scoll back far enough to get all the output from
the start of the session, so I tried it under rxvt (that comes with
mingw32/msys).  It does NOT crash under rxvt!  So I tried the
non-QSHOW_SIGNALS version under rxvt and that worked too.

Here's what happens when running from the Windows console window
(after changing the screen buffer size so that I can capture all of
the output):

C:\msys\1.0\home\michael\src\sbcl-1.0.28>sh run-sbcl.sh
(running SBCL from: .)
This is SBCL 1.0.28, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses.  See the CREDITS and COPYING files in the
distribution for more information.
/entering load_core_file(./output/sbcl.core)
/successfully read first page of core
/found CORE_MAGIC
/val=0x3860, remaining_len=0x1
/VERSION_CORE_ENTRY_TYPE_CODE case
/new ptr=3d68a8
/val=0x3899, remaining_len=0x32
/BUILD_ID_CORE_ENTRY_TYPE_CODE case
build_id[]="kudu-michael-2009-05-18-20-20-49"
remaining_len = 32
ptr[0] = char = 107, expected=107
ptr[1] = char = 117, expected=117
ptr[2] = char = 100, expected=100
ptr[3] = char = 117, expected=117
ptr[4] = char = 45, expected=45
ptr[5] = char = 109, expected=109
ptr[6] = char = 105, expected=105
ptr[7] = char = 99, expected=99
ptr[8] = char = 104, expected=104
ptr[9] = char = 97, expected=97
ptr[10] = char = 101, expected=101
ptr[11] = char = 108, expected=108
ptr[12] = char = 45, expected=45
ptr[13] = char = 50, expected=50
ptr[14] = char = 48, expected=48
ptr[15] = char = 48, expected=48
ptr[16] = char = 57, expected=57
ptr[17] = char = 45, expected=45
ptr[18] = char = 48, expected=48
ptr[19] = char = 53, expected=53
ptr[20] = char = 45, expected=45
ptr[21] = char = 49, expected=49
ptr[22] = char = 56, expected=56
ptr[23] = char = 45, expected=45
ptr[24] = char = 50, expected=50
ptr[25] = char = 48, expected=48
ptr[26] = char = 45, expected=45
ptr[27] = char = 50, expected=50
ptr[28] = char = 48, expected=48
ptr[29] = char = 45, expected=45
ptr[30] = char = 52, expected=52
ptr[31] = char = 57, expected=57
/new ptr=3d6930
/val=0x3861, remaining_len=0x15
/NEW_DIRECTORY_CORE_ENTRY_TYPE_CODE case
/process_directory(..), count=3
/mapping 4096(0x1000) bytes at 0x22000000
/space id = 3, free pointer = 0x22000b48
/mapping 4096(0x1000) bytes at 0x22100000
/space id = 2, free pointer = 0x221006c8
/mapping 25133056(0x17f8000) bytes at 0x22300000
/space id = 1, free pointer = 0x23af8000
/new ptr=3d6974
/val=0x3863, remaining_len=0x1
/INITIAL_FUN_CORE_ENTRY_TYPE_CODE case
/new ptr=3d6980
/val=0x3880, remaining_len=0x2
/new ptr=3d6990
/val=0x3840, remaining_len=0x-2
/END_CORE_ENTRY_TYPE_CODE case
/new ptr=3d6990
/about to free(header)
/returning from load_core_file(..)
/entering arch_install_interrupt_handlers()
/returning from arch_install_interrupt_handlers()
/funcalling initial_function=0x22302975
heap WP violation? fault_addr=2245e7e4, page_index=350
heap WP violation? fault_addr=2238c1fc, page_index=140
heap WP violation? fault_addr=223404a4, page_index=64
heap WP violation? fault_addr=226305b0, page_index=816
heap WP violation? fault_addr=2237acdc, page_index=122
heap WP violation? fault_addr=2235aba4, page_index=90
heap WP violation? fault_addr=2235b334, page_index=91
heap WP violation? fault_addr=224cef64, page_index=462
heap WP violation? fault_addr=223827b4, page_index=130
heap WP violation? fault_addr=22405178, page_index=261
heap WP violation? fault_addr=224187d4, page_index=280
heap WP violation? fault_addr=2238d76c, page_index=141
heap WP violation? fault_addr=2237b0ac, page_index=123
heap WP violation? fault_addr=2275fe78, page_index=1119
heap WP violation? fault_addr=225f8be4, page_index=760
heap WP violation? fault_addr=2274ba00, page_index=1099
heap WP violation? fault_addr=224e50b0, page_index=485
heap WP violation? fault_addr=223fdf04, page_index=253
heap WP violation? fault_addr=224e2ad0, page_index=482
heap WP violation? fault_addr=224ed018, page_index=493
heap WP violation? fault_addr=22409d90, page_index=265
heap WP violation? fault_addr=223b2f94, page_index=178
heap WP violation? fault_addr=225d2000, page_index=722
heap WP violation? fault_addr=2246551c, page_index=357
heap WP violation? fault_addr=225d4008, page_index=724
heap WP violation? fault_addr=225cf138, page_index=719
heap WP violation? fault_addr=22722234, page_index=1058
heap WP violation? fault_addr=223b8694, page_index=184
heap WP violation? fault_addr=223b5004, page_index=181
heap WP violation? fault_addr=223b785c, page_index=183
heap WP violation? fault_addr=233d2700, page_index=4306
heap WP violation? fault_addr=22c19c70, page_index=2329
heap WP violation? fault_addr=2238bb44, page_index=139
heap WP violation? fault_addr=22b7162c, page_index=2161
heap WP violation? fault_addr=22b7d47c, page_index=2173
heap WP violation? fault_addr=225d92dc, page_index=729
heap WP violation? fault_addr=225d7f5c, page_index=727
heap WP violation? fault_addr=225d8010, page_index=728
heap WP violation? fault_addr=224e7000, page_index=487
heap WP violation? fault_addr=224004bc, page_index=256
heap WP violation? fault_addr=224ec008, page_index=492
heap WP violation? fault_addr=224ea008, page_index=490
heap WP violation? fault_addr=224eb000, page_index=491
heap WP violation? fault_addr=2240a000, page_index=266
heap WP violation? fault_addr=22408008, page_index=264
heap WP violation? fault_addr=2275eae8, page_index=1118
heap WP violation? fault_addr=224a1208, page_index=417
heap WP violation? fault_addr=225f0000, page_index=752
heap WP violation? fault_addr=225f5008, page_index=757
heap WP violation? fault_addr=225f6000, page_index=758
heap WP violation? fault_addr=225f3008, page_index=755
heap WP violation? fault_addr=225f4000, page_index=756
heap WP violation? fault_addr=225f12d8, page_index=753
heap WP violation? fault_addr=22ac0378, page_index=1984
heap WP violation? fault_addr=231fda58, page_index=3837
heap WP violation? fault_addr=231fe008, page_index=3838
heap WP violation? fault_addr=231e5e60, page_index=3813
heap WP violation? fault_addr=22712a48, page_index=1042
heap WP violation? fault_addr=22a74000, page_index=1908
heap WP violation? fault_addr=22a711f8, page_index=1905
heap WP violation? fault_addr=22ae3db8, page_index=2019
heap WP violation? fault_addr=23215000, page_index=3861
heap WP violation? fault_addr=23213ca8, page_index=3859
heap WP violation? fault_addr=22b06608, page_index=2054
heap WP violation? fault_addr=2322ba38, page_index=3883
heap WP violation? fault_addr=2322d090, page_index=3885
heap WP violation? fault_addr=2322cf38, page_index=3884
heap WP violation? fault_addr=2263b318, page_index=827
heap WP violation? fault_addr=224d6c38, page_index=470
heap WP violation? fault_addr=226ce3e4, page_index=974
heap WP violation? fault_addr=22b74434, page_index=2164
heap WP violation? fault_addr=22b7b5cc, page_index=2171
heap WP violation? fault_addr=231bf830, page_index=3775
heap WP violation? fault_addr=233c2c90, page_index=4290
heap WP violation? fault_addr=22bd49f0, page_index=2260
heap WP violation? fault_addr=223001bc, page_index=0
heap WP violation? fault_addr=223879c4, page_index=135
heap WP violation? fault_addr=22311008, page_index=17
/entering collect_garbage(0)
/starting one full scan of newspace generation 7
/done with one full scan of newspace generation 7
Next gc when 37724088 bytes have been consed
/returning from collect_garbage
heap WP violation? fault_addr=224187d4, page_index=280
heap WP violation? fault_addr=224004c0, page_index=256
heap WP violation? fault_addr=22300364, page_index=0
heap WP violation? fault_addr=231d5d4c, page_index=3797
heap WP violation? fault_addr=224ed018, page_index=493
heap WP violation? fault_addr=22405178, page_index=261
heap WP violation? fault_addr=2238207c, page_index=130
heap WP violation? fault_addr=22353b44, page_index=83
heap WP violation? fault_addr=225f8be8, page_index=760
heap WP violation? fault_addr=2238bb44, page_index=139
heap WP violation? fault_addr=22311924, page_index=17
heap WP violation? fault_addr=2231e258, page_index=30
heap WP violation? fault_addr=2231da22, page_index=29
heap WP violation? fault_addr=2237734c, page_index=119
heap WP violation? fault_addr=2238efdc, page_index=142
heap WP violation? fault_addr=223575d4, page_index=87
heap WP violation? fault_addr=224cc37c, page_index=460
heap WP violation? fault_addr=224bf7b4, page_index=447
heap WP violation? fault_addr=224cb2d4, page_index=459
heap WP violation? fault_addr=22781008, page_index=1153
heap WP violation? fault_addr=2253e3c0, page_index=574
heap WP violation? fault_addr=22505638, page_index=517
heap WP violation? fault_addr=224d6c38, page_index=470
heap WP violation? fault_addr=22367694, page_index=103
heap WP violation? fault_addr=2263a418, page_index=826
heap WP violation? fault_addr=2240d8f8, page_index=269
heap WP violation? fault_addr=223fdf08, page_index=253
heap WP violation? fault_addr=224e2070, page_index=482
heap WP violation? fault_addr=224f4000, page_index=500
heap WP violation? fault_addr=2240a544, page_index=266
heap WP violation? fault_addr=224f77d0, page_index=503
heap WP violation? fault_addr=224f649c, page_index=502
heap WP violation? fault_addr=225f0000, page_index=752
heap WP violation? fault_addr=224a1204, page_index=417
heap WP violation? fault_addr=225f5970, page_index=757
heap WP violation? fault_addr=225f3a0c, page_index=755
heap WP violation? fault_addr=231c1140, page_index=3777
heap WP violation? fault_addr=229fb8ec, page_index=1787
heap WP violation? fault_addr=231c0480, page_index=3776
heap WP violation? fault_addr=232175e0, page_index=3863
heap WP violation? fault_addr=22ae702c, page_index=2023
heap WP violation? fault_addr=23216710, page_index=3862
heap WP violation? fault_addr=23218000, page_index=3864
heap WP violation? fault_addr=224e7000, page_index=487
heap WP violation? fault_addr=224e8778, page_index=488
heap WP violation? fault_addr=224ecbc0, page_index=492
heap WP violation? fault_addr=224eac9c, page_index=490
heap WP violation? fault_addr=224f87d0, page_index=504
heap WP violation? fault_addr=225d8010, page_index=728
heap WP violation? fault_addr=223b785c, page_index=183
heap WP violation? fault_addr=22465520, page_index=357
heap WP violation? fault_addr=223b8694, page_index=184
heap WP violation? fault_addr=225d2000, page_index=722
heap WP violation? fault_addr=225d4508, page_index=724
heap WP violation? fault_addr=225cf1fc, page_index=719
heap WP violation? fault_addr=223b2f94, page_index=178
heap WP violation? fault_addr=223aecf4, page_index=174
heap WP violation? fault_addr=2245fdb4, page_index=351
heap WP violation? fault_addr=2277d0a0, page_index=1149
heap WP violation? fault_addr=22617874, page_index=791
heap WP violation? fault_addr=2277e500, page_index=1150
heap WP violation? fault_addr=2248c108, page_index=396
heap WP violation? fault_addr=223b5004, page_index=181
heap WP violation? fault_addr=237dad48, page_index=5338
heap WP violation? fault_addr=23641c74, page_index=4929
heap WP violation? fault_addr=2343ee28, page_index=4414
heap WP violation? fault_addr=22da5c00, page_index=2725
heap WP violation? fault_addr=225d7160, page_index=727
heap WP violation? fault_addr=22316824, page_index=22
heap WP violation? fault_addr=2233fb64, page_index=63
heap WP violation? fault_addr=22341adf, page_index=65
heap WP violation? fault_addr=2233e278, page_index=62
heap WP violation? fault_addr=23866790, page_index=5478
heap WP violation? fault_addr=225d92c0, page_index=729
heap WP violation? fault_addr=225dd260, page_index=733
heap WP violation? fault_addr=225de33c, page_index=734
heap WP violation? fault_addr=225dbcb4, page_index=731
heap WP violation? fault_addr=2247ace4, page_index=378
heap WP violation? fault_addr=225daa10, page_index=730
heap WP violation? fault_addr=22ac0374, page_index=1984
heap WP violation? fault_addr=231fe0f4, page_index=3838
heap WP violation? fault_addr=231e5f3c, page_index=3813
heap WP violation? fault_addr=227237bc, page_index=1059
heap WP violation? fault_addr=22782000, page_index=1154
heap WP violation? fault_addr=2366e998, page_index=4974
heap WP violation? fault_addr=23406068, page_index=4358
heap WP violation? fault_addr=22cbdb70, page_index=2493
heap WP violation? fault_addr=2233df18, page_index=61
heap WP violation? fault_addr=227273f4, page_index=1063
heap WP violation? fault_addr=22783000, page_index=1155
heap WP violation? fault_addr=223b6ab4, page_index=182
heap WP violation? fault_addr=22408008, page_index=264
heap WP violation? fault_addr=22784000, page_index=1156
heap WP violation? fault_addr=231f15d0, page_index=3825
heap WP violation? fault_addr=22ab1a88, page_index=1969
heap WP violation? fault_addr=225cebd8, page_index=718
heap WP violation? fault_addr=2341517c, page_index=4373
heap WP violation? fault_addr=22728ff4, page_index=1064
heap WP violation? fault_addr=23678468, page_index=4984
heap WP violation? fault_addr=22776238, page_index=1142
heap WP violation? fault_addr=22607afc, page_index=775
heap WP violation? fault_addr=2277a2b8, page_index=1146
heap WP violation? fault_addr=22358934, page_index=88
heap WP violation? fault_addr=22cf2f30, page_index=2546
heap WP violation? fault_addr=2271d114, page_index=1053
heap WP violation? fault_addr=2390bb10, page_index=5643
heap WP violation? fault_addr=2272a138, page_index=1066
heap WP violation? fault_addr=2342c9a8, page_index=4396
heap WP violation? fault_addr=22d534e8, page_index=2643
heap WP violation? fault_addr=22785000, page_index=1157
heap WP violation? fault_addr=22786000, page_index=1158
heap WP violation? fault_addr=22787000, page_index=1159
heap WP violation? fault_addr=22359a9c, page_index=89
heap WP violation? fault_addr=22788000, page_index=1160
heap WP violation? fault_addr=22789000, page_index=1161
heap WP violation? fault_addr=2278a000, page_index=1162
heap WP violation? fault_addr=2278b000, page_index=1163
heap WP violation? fault_addr=2278c000, page_index=1164
heap WP violation? fault_addr=2278d000, page_index=1165
heap WP violation? fault_addr=2278e000, page_index=1166
heap WP violation? fault_addr=2278f000, page_index=1167
heap WP violation? fault_addr=22790000, page_index=1168
heap WP violation? fault_addr=223540a0, page_index=84
heap WP violation? fault_addr=223e6bd4, page_index=230
heap WP violation? fault_addr=224c34fc, page_index=451
heap WP violation? fault_addr=223e5a3c, page_index=229
heap WP violation? fault_addr=224ba0c4, page_index=442
heap WP violation? fault_addr=224c25bc, page_index=450
heap WP violation? fault_addr=224c1dcc, page_index=449
heap WP violation? fault_addr=224bba0c, page_index=443
heap WP violation? fault_addr=224b85d4, page_index=440
heap WP violation? fault_addr=224bcb44, page_index=444
heap WP violation? fault_addr=224b41fc, page_index=436
heap WP violation? fault_addr=224bdc7c, page_index=445
heap WP violation? fault_addr=2235d394, page_index=93
heap WP violation? fault_addr=224b0d9c, page_index=432
heap WP violation? fault_addr=224b913c, page_index=441
heap WP violation? fault_addr=224b6664, page_index=438
heap WP violation? fault_addr=224b201c, page_index=434
heap WP violation? fault_addr=224b5eec, page_index=437
heap WP violation? fault_addr=224aff34, page_index=431
heap WP violation? fault_addr=2235646c, page_index=86
heap WP violation? fault_addr=224c567c, page_index=453
heap WP violation? fault_addr=224b1814, page_index=433
heap WP violation? fault_addr=224c4844, page_index=452
heap WP violation? fault_addr=22a954e8, page_index=1941
heap WP violation? fault_addr=22748430, page_index=1096
heap WP violation? fault_addr=225e5bbc, page_index=741
heap WP violation? fault_addr=22731c68, page_index=1073
heap WP violation? fault_addr=224c70ac, page_index=455
heap WP violation? fault_addr=224b3cc4, page_index=435
heap WP violation? fault_addr=22376454, page_index=118
heap WP violation? fault_addr=223f80a0, page_index=248
heap WP violation? fault_addr=22774000, page_index=1140
heap WP violation? fault_addr=22779008, page_index=1145
heap WP violation? fault_addr=22777008, page_index=1143
heap WP violation? fault_addr=22778000, page_index=1144
heap WP violation? fault_addr=229d9898, page_index=1753
heap WP violation? fault_addr=226b8504, page_index=952
heap WP violation? fault_addr=224becac, page_index=446
heap WP violation? fault_addr=224aed0c, page_index=430
heap WP violation? fault_addr=224db264, page_index=475
heap WP violation? fault_addr=223636c4, page_index=99
heap WP violation? fault_addr=226b9c68, page_index=953
heap WP violation? fault_addr=2237064c, page_index=112
heap WP violation? fault_addr=22459bcc, page_index=345
heap WP violation? fault_addr=225b0830, page_index=688
heap WP violation? fault_addr=225b8140, page_index=696
heap WP violation? fault_addr=22630a28, page_index=816
heap WP violation? fault_addr=22639d50, page_index=825
heap WP violation? fault_addr=229fa884, page_index=1786
heap WP violation? fault_addr=231bef68, page_index=3774
heap WP violation? fault_addr=22b6f500, page_index=2159
heap WP violation? fault_addr=227d9734, page_index=1241
heap WP violation? fault_addr=22b55890, page_index=2133
heap WP violation? fault_addr=22392bf0, page_index=146
heap WP violation? fault_addr=223966e0, page_index=150
heap WP violation? fault_addr=223990c8, page_index=153
* heap WP violation? fault_addr=2237c37c, page_index=124
(loop for y from -1 to 1.1 by 0.1 do
heap WP violation? fault_addr=223c2718, page_index=194
             (loop for x from -2 to 1 by 0.04 do
                  (let* ((c 126)
                         (z (complex x y))
                         (a z))
                    (loop while (< (abs
                                    (setq z (+ (* z z) a)))
                                   2)
                       while (> (decf c) 32))
                    (princ (code-char c))))
             (format t "~%"))
heap WP violation? fault_addr=224d5784, page_index=469
heap WP violation? fault_addr=224d4f7c, page_index=468
heap WP violation? fault_addr=227d5080, page_index=1237
heap WP violation? fault_addr=22b54850, page_index=2132
~~~~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}||||||||{{{zyvrwum{|||||}}}}}}~~~~~~~~~~~~~
~~~~~~~~~~}}}}}}}}}}}}}}}}}}}}|||||||||{{{zyxwoaqwxz{{{|||||}}}}}}~~~~~~~~~~
~~~~~~~~}}}}}}}}}}}}}}}}}}}|||||||||{{zzzyxvn    Knwyz{{{{||||}}}}}}~~~~~~~~
~~~~~~}}}}}}}}}}}}}}}}}}||||||||{{zyxuxxxwvuq     svwwyzzzyr{||}}}}}}}~~~~~~
~~~~}}}}}}}}}}}}}}}}}|||||{{{{{zzzxt>  qf             pttfqeqz{|}}}}}}}}~~~~
~~~}}}}}}}}}}}}}}|||{{{{{{{{{zzzywotn                     atyz{||}}}}}}}}~~~
~~}}}}}}}}}||||{{zwvyyyyyyyyyyyxvsP                        swvz{||}}}}}}}}~~
~}}}}|||||||{{{{zyxvpP[ur]spvwwvi                           qxz{|||}}}}}}}}~
~}||||||||{{{{{zyytun         qq                            avz{|||}}}}}}}}~
~||||||{zzzzyyxtroqb           a                            xz{{|||}}}}}}}}~
~cgcbY _TRZU9 .                                          pvxyz{{||||}}}}}}}}
~||||||{zzzzyyxtroqb           a                            xz{{|||}}}}}}}}~
~}||||||||{{{{{zyytun         qq                            avz{|||}}}}}}}}~
~}}}}|||||||{{{{zyxvpP[ur]spvwwvi                           qxz{|||}}}}}}}}~
/<trap pending interrupt>
/[arch_skip_inst resuming at 22304564]
/entering interrupt_handle_pending
/maybe_gc: calling SUB_GC
/entering funcall0(0x2231706d)
heap WP violation? fault_addr=223879c4, page_index=135
/entering collect_garbage(0)
~~}}}}}}}}}||||{{zwvyyyyyyyyyyyxvsP                  heap WP violation? fault_ad
dr=22380acc, page_index=128
heap WP violation? fault_addr=223730ac, page_index=115
heap WP violation? fault_addr=223bfe7c, page_index=191
heap WP violation? fault_addr=224a4334, page_index=420
heap WP violation? fault_addr=224a5304, page_index=421

debugger invoked on a SIMPLE-ERROR: EXCEPTION_ACCESS_VIOLATION

Type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name):
  0: [ABORT] Exit debugger, returning to top level.
heap WP violation? fault_addr=223daaa8, page_index=218
heap WP violation? fault_addr=223c1c08, page_index=193

heap WP violation? fault_addr=231cfcb0, page_index=3791
heap WP violation? fault_addr=22712c50, page_index=1042
heap WP violation? fault_addr=225b3a90, page_index=691
heap WP violation? fault_addr=23860528, page_index=5472
heap WP violation? fault_addr=23465a60, page_index=4453
heap WP violation? fault_addr=22e453d8, page_index=2885
("bogus stack frame")
0] heap WP violation? fault_addr=224d11cc, page_index=465

WARNING: Starting a select without a timeout while interrupts are disabled.

-- 
Michael Wood <esiotrot@...>