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Subject: Re: Regression: Cygwin 3.5.1 freezes when launching several mingw
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$ (echo symbol cygwin1.dll;grep -Po 
'(?<=cygwin1!)[a-z_0-9]*?\+0x[a-f0-9]*'|sed -E 's/^/i line *(/;s/$/)/')|gdb
GNU gdb (GDB) (Cygwin 12.1-1) 12.1
Copyright (C) 2022 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 "x86_64-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
     <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".

warning: the current range check setting does not match the language.

Whether backtraces should continue past the entry point of a program is off.
(gdb) Reading symbols from cygwin1.dll...
Reading symbols from /usr/lib/debug/usr/bin/cygwin1.dll.dbg...
(gdb) 00000007`ffffc8c0 00007ffe`7dc57f74     : 00000008`00039b40 
00000008`00039b40 00000000`00010002 0000000a`00000298 : 
cygwin1!dirname+0x198e
00000007`ffffc980 00007ffe`7dc56a78     : 00000000`00f2f2f2 
00000000`00000000 00000007`ffffcd30 00007ffe`e44773ae : 
cygwin1!cuserid+0x16e16
00000007`ffffc9c0 00007ffe`7dc581d3     : 00ff783b`00767676 
00000000`005b0720 00000000`00000002 00000008`00004870 : 
cygwin1!cuserid+0x1591a
00000007`ffffca40 00007ffe`7dbb954d     : 00020000`00000050 
00000000`000a3dd0 00000000`000ab7b0 00000000`00000000 : 
cygwin1!cuserid+0x17075
00000007`ffffca70 00007ffe`7dbb99c2     : 00000007`ffffcc8a 
00007ffe`7dba7d37 00000007`ffffcd30 00000007`00000c90 : 
cygwin1!dlfork+0x2695
00000007`ffffcb70 00007ffe`7dba7187     : 315c615c`305c625c 
2f00735c`2e5c625c 5f5c6c5c`665c615c 745c735c`6e5c695c : 
cygwin1!dlfork+0x2b0a
00000007`ffffcbf0 00007ffe`7dba5e08     : 00000000`00000000 
00000000`00000000 00000000`00000000 00000000`00000000 : 
cygwin1!cygwin_dll_init+0x381
00000007`ffffcd80 00007ffe`7dba5e86     : 00000000`00000000 
00000000`00000000 00000000`00000000 00000000`00000000 : 
cygwin1!_assert+0x23f0
00000007`ffffcdd0 00000000`00000000     : 00007ffe`7dd0604f 
00000008`0003a210 00000000`00000000 00000008`00039400 : 
cygwin1!_assert+0x246e
Line 74 of 
"/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/local_includes/tty.h"
    starts at address 0x1800995ad <_pinfo::set_ctty(fhandler_termios*, 
int)+1275> and ends at 0x1800995bb <_pinfo::set_ctty(fhandler_termios*, 
int)+1289>.
(gdb) Line 1853 of 
"/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/fhandler/console.cc"
    starts at address 0x1800f7f74 <fhandler_console::open_setup(int)+52>
    and ends at 0x1800f7f78 <fhandler_console::open_setup(int)+56>.
(gdb) Line 474 of 
"/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/fhandler/base.cc"
    starts at address 0x1800f6a78 <fhandler_base::open_with_arch(int, 
unsigned int)+312>
    and ends at 0x1800f6a7c <fhandler_base::open_with_arch(int, unsigned 
int)+316>.
(gdb) Line 4132 of 
"/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/fhandler/console.cc"
    starts at address 0x1800f81d3 <fhandler_console::init(void*, 
unsigned int, unsigned int)+73>
    and ends at 0x1800f81de <fhandler_console::init(void*, unsigned int, 
unsigned int)+84>.
(gdb) Line 407 of "/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/dtable.cc"
    starts at address 0x18005954d 
<dtable::init_std_file_from_handle(int, void*)+1011>
    and ends at 0x180059555 <dtable::init_std_file_from_handle(int, 
void*)+1019>.
(gdb) Line 186 of "/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/dtable.cc"
    starts at address 0x1800599b0 <dtable::stdio_init()+148>
    and ends at 0x1800599c3 <dtable::stdio_init()+167>.
(gdb) Line 928 of "/usr/src/debug/cygwin-3.5.1-1/winsup/cygwin/dcrt0.cc"
    starts at address 0x180047187 <dll_crt0_1(void*)+463>
    and ends at 0x180047191 <dll_crt0_1(void*)+473>.
(gdb) No symbol "_assert" in current context.
(gdb) No symbol "_assert" in current context.
(gdb)
quit

On 3/1/2024 6:34 AM, Kevin Schnitzius via Cygwin wrote:
> STACK_TEXT:
> 00000007`ffffc8c0 00007ffe`7dc57f74     : 00000008`00039b40
> 00000008`00039b40 00000000`00010002 0000000a`00000298 :
> cygwin1!dirname+0x198e
> 00000007`ffffc980 00007ffe`7dc56a78     : 00000000`00f2f2f2
> 00000000`00000000 00000007`ffffcd30 00007ffe`e44773ae :
> cygwin1!cuserid+0x16e16
> 00000007`ffffc9c0 00007ffe`7dc581d3     : 00ff783b`00767676
> 00000000`005b0720 00000000`00000002 00000008`00004870 :
> cygwin1!cuserid+0x1591a
> 00000007`ffffca40 00007ffe`7dbb954d     : 00020000`00000050
> 00000000`000a3dd0 00000000`000ab7b0 00000000`00000000 :
> cygwin1!cuserid+0x17075
> 00000007`ffffca70 00007ffe`7dbb99c2     : 00000007`ffffcc8a
> 00007ffe`7dba7d37 00000007`ffffcd30 00000007`00000c90 :
> cygwin1!dlfork+0x2695
> 00000007`ffffcb70 00007ffe`7dba7187     : 315c615c`305c625c
> 2f00735c`2e5c625c 5f5c6c5c`665c615c 745c735c`6e5c695c :
> cygwin1!dlfork+0x2b0a
> 00000007`ffffcbf0 00007ffe`7dba5e08     : 00000000`00000000
> 00000000`00000000 00000000`00000000 00000000`00000000 :
> cygwin1!cygwin_dll_init+0x381
> 00000007`ffffcd80 00007ffe`7dba5e86     : 00000000`00000000
> 00000000`00000000 00000000`00000000 00000000`00000000 :
> cygwin1!_assert+0x23f0
> 00000007`ffffcdd0 00000000`00000000     : 00007ffe`7dd0604f
> 00000008`0003a210 00000000`00000000 00000008`00039400 :
> cygwin1!_assert+0x246e


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