Re: [Gcl-devel] GCL memory allocation and GC problems

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Re: [Gcl-devel] GCL memory allocation and GC problems

From:	Vadim V. Zhytnikov
Subject:	Re: [Gcl-devel] GCL memory allocation and GC problems
Date:	Wed, 10 Dec 2003 23:22:43 +0300
User-agent:	Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.5) Gecko/20031006

Camm Maguire ?????:

Greetigns!  This is very odd.  With my gcl_2.6.1-18 build, in ansi or
trad mode, I get something like this (using ansi for example):

=============================================================================
(sid)address@hidden:/fix/j/camm/gcl/gcl-2.6.1/unixport$ GCL_ANSI=t gcl
GCL (GNU Common Lisp)  (2.6.1) Thu Nov  6 16:29:14 UTC 2003
Licensed under GNU Library General Public License
Dedicated to the memory of W. Schelter

Use (help) to get some basic information on how to use GCL.

(load "/tmp/g.lisp")



Loading /tmp/g.lisp
Finished loading /tmp/g.lisp
T

(setq si::*notify-gbc* t)

(si::set-hole-size 60000)



60000
"Gcl"

(pass)


***** Starting pass #1[GC for 50 RELOCATABLE-BLOCKS pages..(T=1).GC finished]
[GC for 474 CONS pages..(T=2).GC finished]
[GC for 786 CONS pages..(T=2).GC finished]
[GC for 1304 CONS pages..(T=3).GC finished]
[GC for 2164 CONS pages..(T=3).GC finished]
[GC for 3164 CONS pages..(T=4).GC finished]
[GC for 4164 CONS pages..(T=5).GC finished]
[GC for 5164 CONS pages..(T=7).GC finished]
[GC for 6164 CONS pages..(T=8).GC finished]
[GC for 7164 CONS pages..(T=9).GC finished]
[GC for 8164 CONS pages..(T=10).GC finished]

real time : 0.680 secs
run time  : 0.590 secs
9107/9164 100.0% 10 CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          1 contiguous (21 blocks)
     51327          hole
     50     0.2%  1 relocatable

 9344 pages for cells
60732 total pages
55311 pages available
15029 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #1
***** Run time: 0.60  GC time: 0.54 (90.0%)
NIL

(pass)


***** Starting pass #2[GC for 9164 CONS pages..(T=11).GC finished]
[GC for 10164 CONS pages..(T=12).GC finished]
[GC for 11164 CONS pages..(T=13).GC finished]
[GC for 12164 CONS pages..(T=14).GC finished]
[GC for 13164 CONS pages..(T=15).GC finished]
[GC for 14164 CONS pages..(T=16).GC finished]
[GC for 15164 CONS pages..(T=18).GC finished]
[GC for 16164 CONS pages..(T=19).GC finished]
[GC for 17164 CONS pages..(T=21).GC finished]

real time : 1.520 secs
run time  : 1.450 secs
17905/18164100.0% 19CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          1 contiguous (18 blocks)
     42529          hole
     50     0.2%  1 relocatable

18142 pages for cells
60732 total pages
46513 pages available
23827 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #2
***** Run time: 2.05  GC time: 1.93 (94.1%)
NIL

(pass)


***** Starting pass #3[GC for 18164 CONS pages..(T=20).GC finished]
[GC for 19164 CONS pages..(T=22).GC finished]
[GC for 20164 CONS pages..(T=22).GC finished]
[GC for 21164 CONS pages..(T=24).GC finished]
[GC for 22164 CONS pages..(T=25).GC finished]
[GC for 23164 CONS pages..(T=26).GC finished]
[GC for 24164 CONS pages..(T=27).GC finished]
[GC for 25164 CONS pages..(T=28).GC finished]
[GC for 26164 CONS pages..(T=29).GC finished]

real time : 2.400 secs
run time  : 2.310 secs
26702/27164100.0% 28CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          1 contiguous (17 blocks)
     33732          hole
     50     0.2%  1 relocatable

26939 pages for cells
60732 total pages
37716 pages available
32624 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #3
***** Run time: 4.36  GC time: 4.16 (95.4%)
NIL

(pass)


***** Starting pass #4[GC for 27164 CONS pages..(T=30).GC finished]
[GC for 28164 CONS pages..(T=31).GC finished]
[GC for 29164 CONS pages..(T=32).GC finished]
[GC for 30164 CONS pages..(T=33).GC finished]
[GC for 31164 CONS pages..(T=35).GC finished]
[GC for 32164 CONS pages..(T=36).GC finished]
[GC for 33164 CONS pages..(T=37).GC finished]
[GC for 34164 CONS pages..(T=38).GC finished]
[GC for 35164 CONS pages..(T=39).GC finished]

real time : 3.220 secs
run time  : 3.190 secs
35500/36164100.0% 37CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          1 contiguous (16 blocks)
     24934          hole
     50     0.2%  1 relocatable

35737 pages for cells
60732 total pages
28918 pages available
41422 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #4
***** Run time: 7.55  GC time: 7.27 (96.3%)
NIL

(pass)


***** Starting pass #5[GC for 36164 CONS pages..(T=39).GC finished]
[GC for 37164 CONS pages..(T=40).GC finished]
[GC for 38164 CONS pages..(T=42).GC finished]
[GC for 39164 CONS pages..(T=43).GC finished]
[GC for 40164 CONS pages..(T=44).GC finished]
[GC for 41164 CONS pages..(T=45).GC finished]
[GC for 42164 CONS pages..(T=46).GC finished]
[GC for 43164 CONS pages..(T=47).GC finished]
[GC for 44164 CONS pages..(T=48).GC finished]

real time : 4.090 secs
run time  : 4.000 secs
44297/45164100.0% 46CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          1 contiguous (16 blocks)
     16137          hole
     50     0.2%  1 relocatable

44534 pages for cells
60732 total pages
20121 pages available
50219 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #5
***** Run time: 11.55  GC time: 11.21 (97.1%)
NIL

(pass)


***** Starting pass #6[GC for 45164 CONS pages..(T=50).GC finished]
[GC for 46164 CONS pages..(T=50).GC finished]
[GC for 47164 CONS pages..(T=51).GC finished]
[GC for 48164 CONS pages..(T=52).GC finished]
[GC for 49164 CONS pages..(T=53).GC finished]
[GC for 50164 CONS pages..(T=55).GC finished]
[GC for 51164 CONS pages..(T=55).GC finished]
[GC for 52164 CONS pages..(T=57).GC finished]

real time : 4.870 secs
run time  : 4.270 secs
53095/53164100.0% 54CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          1 contiguous (15 blocks)
     7339           hole
     50     0.2%  1 relocatable

53332 pages for cells
60732 total pages
11323 pages available
59017 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #6
***** Run time: 15.82  GC time: 15.44 (97.6%)
NIL

(pass)


***** Starting pass #7[GC for 53164 CONS pages..(T=57).GC finished]
[GC for 54164 CONS pages..(T=59).GC finished]
[GC for 55164 CONS pages..(T=60).GC finished]
[GC for 56164 CONS pages..(T=61).GC finished]
[GC for 57164 CONS pages..(T=62).GC finished]
[GC for 58164 CONS pages..(T=64).GC finished]
[GC for 59164 CONS pages..(T=64).GC finished]
[GC for 60164 CONS pages..(T=65).GC finished]
[GC for 50 RELOCATABLE-BLOCKS pages..(T=66).GC finished]
[GC for 61164 CONS pages..(T=66).GC finished]

real time : 6.950 secs
run time  : 6.300 secs
61893/62164100.0% 63CONS RATIO LONG-FLOAT COMPLEX STRUCTURE
  28/28     7.4%    FIXNUM SHORT-FLOAT CHARACTER RANDOM-STATE READTABLE NIL
  92/109   82.9%    SYMBOL STREAM
   1/2     20.5%    PACKAGE
  48/57    93.0%    ARRAY HASH-TABLE VECTOR BIT-VECTOR PATHNAME CCLOSURE 
FAT-STRING
  30/32    76.4%    STRING
  27/27    18.7%    CFUN BIGNUM
  11/13    83.6%    SFUN GFUN CFDATA SPICE NIL

  11/343          2 contiguous (15 blocks)
     58511          hole
     50     0.2%  2 relocatable

62130 pages for cells
120702 total pages
 2525 pages available
 7845 pages in heap but not gc'd + pages needed for gc marking
131072 maximum pages
***** End of pass #7
***** Run time: 22.12  GC time: 21.68 (98.0%)
NIL

(pass)


***** Starting pass #8[GC for 62164 CONS pages..(T=67).GC finished]
[GC for 63164 CONS pages..(T=69).GC finished]
[GC for 64164 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=71).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=73).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=70).GC finished]
[GC for 64418 CONS pages..(T=69).GC finished]
[GC for 64418 CONS pages..(T=77).GC finished]
[GC for 64418 CONS pages..

[1]+  Stopped                 GCL_ANSI=t gcl
(sid)address@hidden:/fix/j/camm/gcl/gcl-2.6.1/unixport$ 
(sid)address@hidden:/fix/j/camm/gcl/gcl-2.6.1/unixport$ kill %1

[1]+  Stopped                 GCL_ANSI=t gcl

(sid)address@hidden:/fix/j/camm/gcl/gcl-2.6.1/unixport$[1]+ Terminated GCL_ANSI=t gcl

(sid)address@hidden:/fix/j/camm/gcl/gcl-2.6.1/unixport$
=============================================================================


The loop is the afore-mentioned failure to allocate memory to print
the out of memory error message.

What gcl are you using to get a crash?

Take care,


Please forgive me if I confused you by wrong wording.
It is not actually "crash" like segfault or something
like this.  These GBC
[GC for 64418 CONS pages..(T=69).GC finished]
do not form _infinite_ loop.  If you wait long enough
(about 10 minutes or maybe even longer) you will see
how GCL self terminates with "GBC is not enabled."
message.

--
     Vadim V. Zhytnikov

      <address@hidden>
     <address@hidden>

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Re: [Gcl-devel] GCL memory allocation and GC problems, Camm Maguire, 2003/12/01
- Re: [Gcl-devel] GCL memory allocation and GC problems, Vadim V. Zhytnikov, 2003/12/02
  - Re: [Gcl-devel] GCL memory allocation and GC problems, Camm Maguire, 2003/12/04
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    - Re: [Gcl-devel] GCL memory allocation and GC problems, Vadim V. Zhytnikov, 2003/12/10
    - Re: [Gcl-devel] GCL memory allocation and GC problems, Camm Maguire, 2003/12/10
    - Re: [Gcl-devel] GCL memory allocation and GC problems, Vadim V. Zhytnikov <=

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