bug#22301: 25.1.50; Emacs crashes while lisp debugging

[Vincent Belaïche]

Dear Eli,

If not yet wished: HAPPY NEW YEAR 2016, BONNE ANNÉE 2016, С НОВЫМ ГОДОМ
2016 (etc...) !

I had put on hold this bug#22301 stuff, because I wanted to make some
update on LaTeX fmtcount package. Now, I have just come back at it, and
the crash was not long to come back. It seems that it is not so
difficult to reproduce. Below is our backtrace.

My gdb session is left open, so please feel free to ask more gdb
interaction. More below...


Le 05/01/2016 04:34, Eli Zaretskii a écrit :

[...]

>
> Do you get the GDB prompt back if you press F-12 or Ctrl-C?  If not,
> this session is ruined, and you can stop it.
>
> Next time when it happens, type these commands instead:
>
>   (gdb) thread 1
>   (gdb) bt
>
> Better yet, run Emacs from GDB to begin with, it will make the
> backtrace more reliable.
>
> Thanks.

Here is the full session. At the beginning of the session there are lots
of [New thead...], that is because I did not start SES debugging at
once. I have used the Emacs under debug a number of days without any
problem, including for Lisp debugging other lisp code than SES. But
almost as soon as I came back to SES relocation functions, it crashed...

--8<----8<----8<----8<----8<-- begin -->8---->8---->8---->8---->8----
$ gdb /c/Nos_Programmes/GNU/Emacs/bin/emacs.exe
GNU gdb (GDB) 7.6.1
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "mingw32".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from c:\Nos_Programmes\GNU\Emacs\bin\emacs.exe...done.
SIGINT is used by the debugger.
Are you sure you want to change it? (y or n) [answered Y; input not from 
terminal]
DISPLAY = w32
TERM = emacs
Breakpoint 1 at 0x10951bb: file emacs.c, line 370.
Temporary breakpoint 2 at 0x10aabd6: file sysdep.c, line 901.
(gdb) run
Starting program: c:/Nos_Programmes/GNU/Emacs/bin/emacs.exe 
[New Thread 2820.0x9b0]
[New Thread 2820.0x1458]
[New Thread 2820.0x1618]
[New Thread 2820.0xd5c]
[New Thread 2820.0x6f4]
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[New Thread 2820.0x1b88]
[New Thread 2820.0x1bbc]
[New Thread 2820.0x1bf0]
[New Thread 2820.0x114c]
[New Thread 2820.0x153c]
[New Thread 2820.0x1880]
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[New Thread 2820.0x168c]
[New Thread 2820.0x1964]
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[New Thread 2820.0x1e8]
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[New Thread 2820.0x1814]
[New Thread 2820.0x121c]
[New Thread 2820.0x1ae8]
[New Thread 2820.0x1bbc]
[New Thread 2820.0x1bf4]
[New Thread 2820.0x1864]
[New Thread 2820.0x554]
[New Thread 2820.0x1818]
[New Thread 2820.0x1248]
[New Thread 2820.0x1934]
[New Thread 2820.0x1318]
[New Thread 2820.0x1684]
[New Thread 2820.0xe9c]
[New Thread 2820.0x18cc]
[New Thread 2820.0x1a28]
[New Thread 2820.0x1a54]
[New Thread 2820.0x96c]
[New Thread 2820.0x1874]
[New Thread 2820.0x1aa0]
[New Thread 2820.0x1b1c]
[New Thread 2820.0x6ac]
[New Thread 2820.0x624]
[New Thread 2820.0x1b74]
[New Thread 2820.0x20c]
[New Thread 2820.0x1bb8]
[New Thread 2820.0x1b00]
[New Thread 2820.0x1864]
[New Thread 2820.0x554]
[New Thread 2820.0x1840]
[New Thread 2820.0x1248]
[New Thread 2820.0x1a20]
[New Thread 2820.0x19f0]
[New Thread 2820.0x1610]
[New Thread 2820.0x18b8]
[New Thread 2820.0x1b30]
[New Thread 2820.0x119c]
[New Thread 2820.0x1a4c]
[New Thread 2820.0x1be8]
[New Thread 2820.0x1a70]
[New Thread 2820.0x7ec]
[New Thread 2820.0x19c8]
[New Thread 2820.0x1abc]
[New Thread 2820.0x1ab8]
[New Thread 2820.0x1558]
[New Thread 2820.0x1b78]
[New Thread 2820.0x1b5c]
[New Thread 2820.0x1808]
[New Thread 2820.0xd40]
[New Thread 2820.0x12f0]
[New Thread 2820.0xa74]
[New Thread 2820.0x554]
[New Thread 2820.0x71c]
[New Thread 2820.0x1284]
[New Thread 2820.0x8f8]
[New Thread 2820.0xe58]
[New Thread 2820.0xf50]
[New Thread 2820.0xb08]
[New Thread 2820.0x3a0]
[New Thread 2820.0xa44]
[New Thread 2820.0x122c]
[New Thread 2820.0x1588]
[New Thread 2820.0x139c]
[New Thread 2820.0x140c]
[New Thread 2820.0x1a54]
[New Thread 2820.0x11dc]
[New Thread 2820.0x140c]
[New Thread 2820.0x1b68]
[New Thread 2820.0x9a8]
[New Thread 2820.0x43c]
[New Thread 2820.0x156c]
[New Thread 2820.0x140]
[New Thread 2820.0x19ec]
[New Thread 2820.0xb10]
[New Thread 2820.0x1388]
[New Thread 2820.0xe44]
[New Thread 2820.0x1318]
[New Thread 2820.0xfd0]
[New Thread 2820.0x17c4]
[New Thread 2820.0x15d0]
[New Thread 2820.0x1ec]
[New Thread 2820.0x414]
[New Thread 2820.0x1984]
[New Thread 2820.0xc7c]
[New Thread 2820.0x11e4]
[New Thread 2820.0x1bb8]
[New Thread 2820.0x5c8]
[New Thread 2820.0x1928]
[New Thread 2820.0xfbc]
[New Thread 2820.0xac]
[New Thread 2820.0x18b4]
[New Thread 2820.0xc8]
[New Thread 2820.0xf40]
[New Thread 2820.0x1560]
[New Thread 2820.0x1f8]
[New Thread 2820.0x4f8]
[New Thread 2820.0x1388]
[New Thread 2820.0x1520]
[New Thread 2820.0x1578]
[New Thread 2820.0x5b4]
[New Thread 2820.0x188c]
[New Thread 2820.0xf78]
[New Thread 2820.0xd4]
[New Thread 2820.0xaf8]
[New Thread 2820.0x1960]
[New Thread 2820.0x1824]
[New Thread 2820.0x830]
[New Thread 2820.0x43c]
[New Thread 2820.0xfa0]
[New Thread 2820.0x182c]
[New Thread 2820.0x1b34]
[New Thread 2820.0x178c]
[New Thread 2820.0x2f8]
[New Thread 2820.0x1208]
[New Thread 2820.0x1294]
[New Thread 2820.0x5d8]
[New Thread 2820.0xd7c]
[New Thread 2820.0x13c0]
[New Thread 2820.0x144c]
[New Thread 2820.0x1a4c]
[New Thread 2820.0x18fc]
[New Thread 2820.0xa78]
[New Thread 2820.0x4c4]
[New Thread 2820.0x13b8]
[New Thread 2820.0xe28]
[New Thread 2820.0x15a8]
[New Thread 2820.0x204]
[New Thread 2820.0x7ac]
[New Thread 2820.0x8e4]
[New Thread 2820.0xce0]
[New Thread 2820.0x9a8]
[New Thread 2820.0x18d0]
[New Thread 2820.0x1300]
[New Thread 2820.0x1a3c]
[New Thread 2820.0x114]
[New Thread 2820.0xe08]
[New Thread 2820.0x1370]
[New Thread 2820.0x1ac8]
[New Thread 2820.0x75c]
[New Thread 2820.0xd30]
[New Thread 2820.0x1490]
[New Thread 2820.0xde8]
[New Thread 2820.0x17dc]
[New Thread 2820.0x1f8]
[New Thread 2820.0x4f8]
[New Thread 2820.0x1388]
[New Thread 2820.0x888]
[New Thread 2820.0x19f8]
[New Thread 2820.0x185c]
[New Thread 2820.0xe28]
[New Thread 2820.0x188c]
[New Thread 2820.0x104c]
[New Thread 2820.0x1778]
[New Thread 2820.0x1b68]
[New Thread 2820.0x15cc]
[New Thread 2820.0x189c]
[New Thread 2820.0x15c0]
[New Thread 2820.0x1404]
[New Thread 2820.0xb94]
[New Thread 2820.0x1370]
[New Thread 2820.0xac]
[New Thread 2820.0x184c]
[New Thread 2820.0xa38]
[New Thread 2820.0x1bc4]
[New Thread 2820.0x1084]
[New Thread 2820.0x119c]
[New Thread 2820.0x1674]
[New Thread 2820.0x1388]
[New Thread 2820.0x888]
[New Thread 2820.0x16c]
[New Thread 2820.0x1590]
[New Thread 2820.0x1ec]
[New Thread 2820.0xf78]
[New Thread 2820.0x1860]
[New Thread 2820.0x15cc]
[New Thread 2820.0x870]
[New Thread 2820.0x1a94]
[New Thread 2820.0x628]
[New Thread 2820.0x158c]
[New Thread 2820.0x19ec]
[New Thread 2820.0x18ac]
[New Thread 2820.0x111c]
[New Thread 2820.0xf3c]
[New Thread 2820.0x1be4]
[New Thread 2820.0xde8]
[New Thread 2820.0x18f8]
[New Thread 2820.0x1f8]
[New Thread 2820.0x19e0]
[New Thread 2820.0x688]
[New Thread 2820.0xca0]
[New Thread 2820.0x1578]
[New Thread 2820.0xdec]
[New Thread 2820.0x14c0]
[New Thread 2820.0xcd0]
[New Thread 2820.0xe80]
[New Thread 2820.0x540]
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[New Thread 2820.0xd4]
[New Thread 2820.0x1a14]
[New Thread 2820.0xb94]
[New Thread 2820.0x1b6c]
[New Thread 2820.0x1b74]
[New Thread 2820.0x910]
[New Thread 2820.0x9c]
[New Thread 2820.0x908]
[New Thread 2820.0x1a2c]
[New Thread 2820.0x1374]
[New Thread 2820.0x45c]
[New Thread 2820.0x15f0]
[New Thread 2820.0x1388]
[New Thread 2820.0xcdc]
[New Thread 2820.0x728]
[New Thread 2820.0x18d4]
[New Thread 2820.0xe6c]
[New Thread 2820.0x35c]
[New Thread 2820.0x133c]
[New Thread 2820.0x1018]
[New Thread 2820.0x126c]
[New Thread 2820.0xc14]
[New Thread 2820.0x1960]
[New Thread 2820.0x830]
[New Thread 2820.0x19ac]
[New Thread 2820.0x15c0]
[New Thread 2820.0x1b34]
[New Thread 2820.0x15d4]
[New Thread 2820.0x1370]
[New Thread 2820.0x4b8]
[New Thread 2820.0x139c]
[New Thread 2820.0x15ac]
[New Thread 2820.0x12c8]
[New Thread 2820.0x1a0c]
[New Thread 2820.0xa18]
[New Thread 2820.0x1078]
[New Thread 2820.0x864]
[New Thread 2820.0x1248]
[New Thread 2820.0x1424]
[New Thread 2820.0x1b5c]
[New Thread 2820.0x13b8]
[New Thread 2820.0x1a7c]
[New Thread 2820.0x1bfc]
[New Thread 2820.0x318]
[New Thread 2820.0x1860]
[New Thread 2820.0x1668]
[New Thread 2820.0xe78]
[New Thread 2820.0x248]
[New Thread 2820.0x1004]
[New Thread 2820.0x18e0]
[New Thread 2820.0x1af0]
[New Thread 2820.0x11a4]
[New Thread 2820.0xff8]
[New Thread 2820.0x19dc]
[New Thread 2820.0x18dc]
[New Thread 2820.0x1f8]
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[New Thread 2820.0x1228]
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[New Thread 2820.0xfac]
[New Thread 2820.0xac0]
[New Thread 2820.0x15bc]
[New Thread 2820.0x179c]
[New Thread 2820.0xe80]
[New Thread 2820.0x1250]
[New Thread 2820.0x15d0]
[New Thread 2820.0xc14]
[New Thread 2820.0x1bd8]
[New Thread 2820.0x1b04]
[New Thread 2820.0x6bc]
[New Thread 2820.0xa18]
[New Thread 2820.0x16dc]
[New Thread 2820.0x1974]
[New Thread 2820.0x1424]
[New Thread 2820.0x1a14]
[New Thread 2820.0x1818]
[New Thread 2820.0x43c]
[New Thread 2820.0x185c]
[New Thread 2820.0x1bfc]
[New Thread 2820.0x1250]
[New Thread 2820.0xe28]
[New Thread 2820.0x830]
[New Thread 2820.0x19c8]
[New Thread 2820.0x728]
[New Thread 2820.0xcec]
[New Thread 2820.0xde0]
[New Thread 2820.0x1578]
[New Thread 2820.0x1740]
[New Thread 2820.0x14bc]
[New Thread 2820.0xf78]
[New Thread 2820.0x540]
[New Thread 2820.0x1acc]
[New Thread 2820.0x176c]
[New Thread 2820.0x170]
[New Thread 2820.0x1bb4]
[New Thread 2820.0x1068]
[New Thread 2820.0x181c]
[New Thread 2820.0x19dc]
[New Thread 2820.0x1774]
[New Thread 2820.0x12cc]
[New Thread 2820.0x1208]
[New Thread 2820.0x107c]
[New Thread 2820.0x1318]
[New Thread 2820.0x1648]
[New Thread 2820.0xd54]
[New Thread 2820.0x18c]
[New Thread 2820.0x156c]
[New Thread 2820.0xbc4]
[New Thread 2820.0x116c]
[New Thread 2820.0x140]
[New Thread 2820.0x14a4]
[New Thread 2820.0x1644]
[New Thread 2820.0x1a84]
[New Thread 2820.0x1018]
[New Thread 2820.0x1204]
[New Thread 2820.0x7a8]
[New Thread 2820.0x840]
[New Thread 2820.0x176c]
[New Thread 2820.0x16a8]
[New Thread 2820.0x1768]
[New Thread 2820.0x15f4]
[New Thread 2820.0x199c]
[New Thread 2820.0xd7c]
[New Thread 2820.0xa34]
[New Thread 2820.0xc8]
[New Thread 2820.0xc0c]
[New Thread 2820.0x18e0]
[New Thread 2820.0x1688]
[New Thread 2820.0x1694]
[New Thread 2820.0x1014]
[New Thread 2820.0x1bc8]
[New Thread 2820.0x145c]
[New Thread 2820.0xf98]
[New Thread 2820.0xe44]
[New Thread 2820.0x804]
[New Thread 2820.0x1368]
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[New Thread 2820.0xac0]
[New Thread 2820.0x608]
[New Thread 2820.0x1ad4]
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[New Thread 2820.0x19e0]
[New Thread 2820.0x75c]
[New Thread 2820.0x1560]
[New Thread 2820.0xb88]
[New Thread 2820.0x1128]
[New Thread 2820.0x1588]
[New Thread 2820.0x17cc]
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[New Thread 2820.0x1668]
[New Thread 2820.0x11e4]
[New Thread 2820.0x16f0]
[New Thread 2820.0x16a8]
[New Thread 2820.0x1078]
[New Thread 2820.0x1768]
[New Thread 2820.0x1af8]
[New Thread 2820.0xffc]
[New Thread 2820.0x16b0]
[New Thread 2820.0x1188]
[New Thread 2820.0x82c]
[New Thread 2820.0x13e4]
[New Thread 2820.0x17c8]
[New Thread 2820.0x1318]
[New Thread 2820.0x1858]
[New Thread 2820.0x1014]
[New Thread 2820.0x1974]
[New Thread 2820.0xb10]
[New Thread 2820.0x684]
[New Thread 2820.0x11d8]
[New Thread 2820.0x12cc]
[New Thread 2820.0x1afc]
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[New Thread 2820.0x1b50]
[New Thread 2820.0x13c0]
[New Thread 2820.0x1b7c]
[New Thread 2820.0x1190]
[New Thread 2820.0x684]
[New Thread 2820.0x1984]
[New Thread 2820.0x1578]
[New Thread 2820.0x864]
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[New Thread 2820.0x440]
[New Thread 2820.0x8e0]
[New Thread 2820.0x158c]
[New Thread 2820.0x178c]
[New Thread 2820.0x13dc]
[New Thread 2820.0x17dc]
[New Thread 2820.0xfcc]
[New Thread 2820.0xf40]
[New Thread 2820.0x1974]
[New Thread 2820.0xe98]
[New Thread 2820.0xc18]
[New Thread 2820.0x19d0]
[New Thread 2820.0x1a2c]
[New Thread 2820.0x17e0]
[New Thread 2820.0xfcc]
[New Thread 2820.0xf38]
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[New Thread 2820.0x144c]
[New Thread 2820.0x1bb8]
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[New Thread 2820.0x13d4]
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[New Thread 2820.0x35c]
[New Thread 2820.0x6f8]
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[New Thread 2820.0x838]
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[New Thread 2820.0x1a14]
[New Thread 2820.0x854]
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[New Thread 2820.0x1ba0]
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[New Thread 2820.0x5a8]
[New Thread 2820.0x864]
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[New Thread 2820.0xda0]
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[New Thread 2820.0x1ad4]
[New Thread 2820.0x1068]
[New Thread 2820.0x18a4]
[New Thread 2820.0x35c]
[New Thread 2820.0xd7c]
[New Thread 2820.0x1608]
[New Thread 2820.0x198]
[New Thread 2820.0x1548]
[New Thread 2820.0xcfc]
[New Thread 2820.0x1bfc]
[New Thread 2820.0x1774]
[New Thread 2820.0x18b4]
[New Thread 2820.0x1b08]
[New Thread 2820.0x768]
[New Thread 2820.0x14d4]
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[New Thread 2820.0x16f0]
[New Thread 2820.0xe7c]
[New Thread 2820.0x1a0c]
[New Thread 2820.0x138c]
[New Thread 2820.0x1b78]
[New Thread 2820.0x153c]
[New Thread 2820.0x13b0]
[New Thread 2820.0x161c]
[New Thread 2820.0x76c]
[New Thread 2820.0x10f8]
[New Thread 2820.0x1bf4]
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[New Thread 2820.0x1064]
[New Thread 2820.0x1660]
[New Thread 2820.0x178c]
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[New Thread 2820.0x1780]
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[New Thread 2820.0x1ad0]
[New Thread 2820.0x2dc]
[New Thread 2820.0xf3c]
[New Thread 2820.0x1abc]
[New Thread 2820.0x888]
[New Thread 2820.0x1ae8]
[New Thread 2820.0x32c]
[New Thread 2820.0x1134]
[New Thread 2820.0x1b04]
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[New Thread 2820.0xf44]
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[New Thread 2820.0x1550]
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[New Thread 2820.0x1754]
[New Thread 2820.0x14a0]
[New Thread 2820.0xb78]
[New Thread 2820.0xfec]
[New Thread 2820.0x1208]
[New Thread 2820.0x578]
[New Thread 2820.0x1204]
[New Thread 2820.0xda4]
[New Thread 2820.0x17c8]
[New Thread 2820.0x1134]
[New Thread 2820.0x1870]
[New Thread 2820.0x1260]
[New Thread 2820.0x344]
[New Thread 2820.0x1068]
[New Thread 2820.0x678]
[New Thread 2820.0x1a88]
[New Thread 2820.0x1588]
[New Thread 2820.0x12cc]
[New Thread 2820.0xf44]
[New Thread 2820.0x644]
[New Thread 2820.0x1708]
[New Thread 2820.0x148c]
[New Thread 2820.0xa18]
[New Thread 2820.0x1314]
[New Thread 2820.0x1644]
[New Thread 2820.0x54c]
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[New Thread 2820.0x1d64]
[New Thread 2820.0x4c0]
[New Thread 2820.0x7ac]
[New Thread 2820.0xbdc]
[New Thread 2820.0x1368]
[New Thread 2820.0x1c38]
[New Thread 2820.0x94c]
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[New Thread 2820.0x1f28]
[New Thread 2820.0xc98]
[New Thread 2820.0x1a54]
[New Thread 2820.0x1c30]
[New Thread 2820.0x5a0]
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[New Thread 2820.0x19e0]
[New Thread 2820.0x96c]
[New Thread 2820.0x1530]
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[New Thread 2820.0x1cac]
[New Thread 2820.0x15a8]
[New Thread 2820.0x1fd4]
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[New Thread 2820.0xc8]
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[New Thread 2820.0x940]
[New Thread 2820.0x1d98]
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[New Thread 2820.0x1d90]
[New Thread 2820.0xfbc]
[New Thread 2820.0x1a68]
[New Thread 2820.0x1928]
[New Thread 2820.0x1fcc]
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[New Thread 2820.0x1a8c]
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[New Thread 2820.0x8e0]
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[New Thread 2820.0xb94]
[New Thread 2820.0x1bbc]
[New Thread 2820.0x11d8]
[New Thread 2820.0x1be0]
[New Thread 2820.0x1110]
[New Thread 2820.0x2c4]
[New Thread 2820.0x1d3c]
[New Thread 2820.0x1a3c]
[New Thread 2820.0xfbc]
[New Thread 2820.0x788]
[New Thread 2820.0x1c70]
[New Thread 2820.0x4e0]
[New Thread 2820.0x2188]
[New Thread 2820.0x218c]
[New Thread 2820.0x2190]
[New Thread 2820.0x2274]
[New Thread 2820.0x18fc]
[New Thread 2820.0x1f98]
[New Thread 2820.0x3ec]
[New Thread 2820.0x1554]
[New Thread 2820.0x1e08]
[New Thread 2820.0x20d8]
[New Thread 2820.0x1128]
[New Thread 2820.0x1b18]
[New Thread 2820.0x71c]
[New Thread 2820.0x121c]
[New Thread 2820.0xe58]
[New Thread 2820.0x2228]
[New Thread 2820.0x2260]
[New Thread 2820.0x19f0]
[New Thread 2820.0x22f4]
[New Thread 2820.0x23e4]
[New Thread 2820.0xc54]
[New Thread 2820.0x1cb0]
[New Thread 2820.0x214c]
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[New Thread 2820.0x1f50]
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[New Thread 2820.0xd34]
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[New Thread 2820.0x221c]
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[New Thread 2820.0x574]
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[New Thread 2820.0x18f8]
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[New Thread 2820.0xce4]
[New Thread 2820.0x344]
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[New Thread 2820.0xaf8]
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[New Thread 2820.0xf94]
[New Thread 2820.0x1f40]
[New Thread 2820.0xe78]
[New Thread 2820.0x1aa0]
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[New Thread 2820.0x4d0]
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[New Thread 2820.0x209c]
[New Thread 2820.0x874]
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[New Thread 2820.0x600]
[New Thread 2820.0x1cc4]
[New Thread 2820.0x1bc8]
[New Thread 2820.0x1130]
[New Thread 2820.0x12c8]
[New Thread 2820.0x1e14]
[New Thread 2820.0xc54]
[New Thread 2820.0xcec]
[New Thread 2820.0x2140]
[New Thread 2820.0x134c]
[New Thread 2820.0xecc]
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[New Thread 2820.0x1264]
[New Thread 2820.0x830]
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[New Thread 2820.0x6b8]
[New Thread 2820.0x1a14]
[New Thread 2820.0x2140]
[New Thread 2820.0x2c4]
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[New Thread 2820.0x1fa8]
[New Thread 2820.0x1fac]
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[New Thread 2820.0xb94]
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[New Thread 2820.0x4d0]
[New Thread 2820.0xfbc]
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[New Thread 2820.0x21d0]
[New Thread 2820.0xe14]
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[New Thread 2820.0x219c]
[New Thread 2820.0xf38]
[New Thread 2820.0xb18]
[New Thread 2820.0x8e8]
[New Thread 2820.0x12ac]
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[New Thread 2820.0xba0]
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[New Thread 2820.0xe28]
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[New Thread 2820.0x23d4]
[New Thread 2820.0x19e0]
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[New Thread 2820.0x1f10]
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[New Thread 2820.0x1288]
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[New Thread 2820.0x1b10]
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[New Thread 2820.0xb88]
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[New Thread 2820.0x910]
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[New Thread 2820.0x21e4]
[New Thread 2820.0x2384]
[New Thread 2820.0x2188]
[New Thread 2820.0x764]
[New Thread 2820.0x1a80]
[New Thread 2820.0x1b6c]
[New Thread 2820.0x1738]
[New Thread 2820.0xf94]
[New Thread 2820.0xc74]
[New Thread 2820.0x1a48]
[New Thread 2820.0x1d98]
[New Thread 2820.0xe20]
[New Thread 2820.0x3a0]
[New Thread 2820.0xfac]

Program received signal SIGSEGV, Segmentation fault.
0x011119c6 in print_object (obj=obj@entry=12579352, 
    printcharfun=printcharfun@entry=0, escapeflag=escapeflag@entry=true)
    at print.c:1505
1505            if (p != end && (*p == '-' || *p == '+')) p++;
(gdb) thread 1
[Switching to thread 1 (Thread 2820.0x9b0)]
#0  0x011119c6 in print_object (obj=obj@entry=12579352, 
    printcharfun=printcharfun@entry=0, escapeflag=escapeflag@entry=true)
    at print.c:1505
1505            if (p != end && (*p == '-' || *p == '+')) p++;
(gdb) bt
#0  0x011119c6 in print_object (obj=obj@entry=12579352, 
    printcharfun=printcharfun@entry=0, escapeflag=escapeflag@entry=true)
    at print.c:1505
#1  0x01112d0b in print (obj=obj@entry=12579352, 
    printcharfun=printcharfun@entry=0, escapeflag=escapeflag@entry=true)
    at print.c:1129
#2  0x01112f89 in Fprin1 (object=12579352, printcharfun=printcharfun@entry=0)
    at print.c:623
#3  0x010f89ac in Fbacktrace () at eval.c:3247
#4  0x010fa7da in Ffuncall (nargs=1, args=0xbfeda8) at eval.c:2647
#5  0x0112a00d in exec_byte_code (bytestr=-1946399349, vector=264275401, 
    maxdepth=26, args_template=args_template@entry=1030, nargs=nargs@entry=1, 
    args=0x1) at bytecode.c:880
#6  0x010fa348 in funcall_lambda (fun=81103373, nargs=nargs@entry=1, 
    arg_vector=arg_vector@entry=0xbfefe0) at eval.c:2810
#7  0x010fa59f in Ffuncall (nargs=2, args=0xbfefdc) at eval.c:2711
#8  0x0112a00d in exec_byte_code (bytestr=-1946399349, vector=264275401, 
    maxdepth=166, args_template=args_template@entry=514, nargs=nargs@entry=2, 
    args=0x2) at bytecode.c:880
#9  0x010fa348 in funcall_lambda (fun=81425253, nargs=nargs@entry=2, 
    arg_vector=arg_vector@entry=0xbff1b4) at eval.c:2810
#10 0x010fa59f in Ffuncall (nargs=nargs@entry=3, args=args@entry=0xbff1b0)
    at eval.c:2711
#11 0x010fb8e3 in Fapply (nargs=nargs@entry=2, args=args@entry=0xbff218)
    at eval.c:2278
#12 0x010fb9d6 in apply1 (fn=10304, arg=arg@entry=86736923) at eval.c:2494
#13 0x010fbb6e in call_debugger (arg=86736923) at eval.c:308
#14 0x010f9c97 in eval_sub (form=85682323) at eval.c:2206
#15 0x010fa08f in Fprogn (body=86013979) at eval.c:427
#16 0x010fc90b in Flet (args=86008795) at eval.c:943
#17 0x010f9d2b in eval_sub (form=86008787) at eval.c:2085
#18 0x010fa08f in Fprogn (body=86008675) at eval.c:427
#19 0x010fa3a3 in funcall_lambda (fun=86008491, nargs=nargs@entry=1, 
    arg_vector=arg_vector@entry=0xbff598) at eval.c:2869
#20 0x010fa59f in Ffuncall (nargs=nargs@entry=2, args=args@entry=0xbff594)
    at eval.c:2711
#21 0x010f6a5d in Ffuncall_interactively (nargs=2, args=0xbff594)
    at callint.c:248
#22 0x010fa67d in Ffuncall (nargs=3, args=0xbff590) at eval.c:2630
#23 0x010f7381 in Fcall_interactively (function=44729056, record_flag=0, 
    keys=89093941) at callint.c:836
#24 0x010fa7af in Ffuncall (nargs=4, args=0xbff70c) at eval.c:2657
#25 0x0112a00d in exec_byte_code (bytestr=-1946399349, vector=264275401, 
    maxdepth=54, args_template=args_template@entry=4102, nargs=nargs@entry=1, 
    args=0x4) at bytecode.c:880
#26 0x010fa348 in funcall_lambda (fun=18989285, nargs=nargs@entry=1, 
    arg_vector=arg_vector@entry=0xbff8dc) at eval.c:2810
#27 0x010fa59f in Ffuncall (nargs=nargs@entry=2, args=args@entry=0xbff8d8)
    at eval.c:2711
#28 0x010fa8fe in call1 (fn=fn@entry=8992, arg1=44729056) at eval.c:2509
#29 0x010a1d19 in command_loop_1 () at keyboard.c:1452
#30 0x010f91d2 in internal_condition_case (
    bfun=bfun@entry=0x10a199c <command_loop_1>, 
    handlers=handlers@entry=12000, hfun=hfun@entry=0x1099c36 <cmd_error>)
    at eval.c:1309
#31 0x01095861 in command_loop_2 (ignore=0) at keyboard.c:1086
#32 0x010f9120 in internal_catch (tag=tag@entry=32032, 
    func=func@entry=0x1095842 <command_loop_2>, arg=arg@entry=0)
    at eval.c:1073
#33 0x01095823 in command_loop () at keyboard.c:1065
#34 0x010998f0 in recursive_edit_1 () at keyboard.c:671
#35 0x01099b7e in Frecursive_edit () at keyboard.c:742
#36 0x011a73af in main (argc=<optimized out>, argv=0xf034c8) at emacs.c:1652

Lisp Backtrace:
"backtrace" (0xbfedac)
"debugger-setup-buffer" (0xbfefe0)
"debug" (0xbff1b4)
"ses-relocate-all" (0xbff200)
"let" (0xbff3bc)
"ses-delete-row" (0xbff598)
"funcall-interactively" (0xbff594)
"call-interactively" (0xbff710)
"command-execute" (0xbff8dc)
(gdb)
--8<----8<----8<----8<----8<--  end  -->8---->8---->8---->8---->8----

VBR,
        Vincent