Segfaults in Windows 7

[Eduardo Valdes <evaldes@xxxxxxxxxxxxxxxxxxxxxx>]

I have started doing some testing of my application under Windows 7, but I
am seeing some seg faults in libssh. The application runs fine under Linux
and Windows XP.
I am using libssh-mingw4-20100808-bin (0.4.5).

This seg fault occurs will I am doing channel I/O for a terminal:

Program received signal SIGSEGV, Segmentation fault.
0x61ad7575 in packet_read2 () from H:\freepascal\RAT\Work\trash\libssh.dll
(gdb) backtrace
#0  0x61ad7575 in packet_read2 () from
H:\freepascal\RAT\Work\trash\libssh.dll
#1  0x61ad8f28 in ssh_handle_packets () from
H:\freepascal\RAT\Work\trash\libssh.dll
#2  0x61ac5177 in channel_poll () from
H:\freepascal\RAT\Work\trash\libssh.dll
#3  0x0042adf7 in TSSHTERMINALHELPER__TERMINALRECEIVE (this=0x2e76030) at
usshterminalhelper.pas:282
#4  0x0042b4df in TTERMINALFORM__RUN (this=0x2326c0) at
uterminalform.pas:163
#5  0x00421307 in TFRMMAIN__BTNCONNECTTO1CLICK (SENDER=0x1c6820,
this=0x1cf010) at umain.pas:614
#6  0x004c09f4 in TCONTROL__CLICK (this=0x1c6820) at control.inc:2227
#7  0x005033cf in TBUTTONCONTROL__CLICK (this=0x1c6820) at
buttoncontrol.inc:72
#8  0x00503895 in TCUSTOMBUTTON__CLICK (this=0x1c6820) at buttons.inc:164
#9  0x00503df1 in TBUTTON__CLICK (this=0x1c6820) at buttons.inc:331
#10 0x0050326a in TBUTTONCONTROL__WMDEFAULTCLICKED (MESSAGE={MSG = 66567,
WPARAM = 1995015919, LPARAM = 197548, RESULT = 0, WPARAMLO = 34543, WPARAMHI
= 30441, LPARAMLO = 940, LPARAMHI = 3, RESULTLO = 0, RESULTHI = 0},
this=0x1c6820) at buttoncontrol.inc:26
#11 0x0040a549 in SYSTEM_TOBJECT_$__DISPATCH$formal ()
#12 0x00503250 in TBUTTONCONTROL__ISCHECKEDSTORED (this=0x20af6fc) at
buttoncontrol.inc:22
#13 0x004b7522 in TWINCONTROL__WNDPROC (MESSAGE={MSG = 66567, WPARAM =
1995015919, LPARAM = 197548, RESULT = 0, WPARAMLO = 34543, WPARAMHI = 30441,
LPARAMLO = 940, LPARAMHI = 3, RESULTLO = 0, RESULTHI = 0}, this=0x1c6820) at
wincontrol.inc:4920
#14 0x005253c7 in DELIVERMESSAGE (TARGET=0x1c6820, AMESSAGE=void) at
lclmessageglue.pas:111
#15 0x004d7671 in WINDOWPROC (WINDOW=918004, MSG=273, WPARAM=26656,
LPARAM=197548) at win32callback.inc:2574
#16 0x00518f81 in PAGEWINDOWPROC (WINDOW=918004, MSG=273, WPARAM=26656,
LPARAM=197548) at win32wsextctrls.pp:277
#17 0x76e986ef in USER32!IsWindowVisible () from
C:\Windows\system32\user32.dll
#18 0x000e01f4 in ?? ()
#19 0x00000111 in ?? ()
#20 0x00006820 in ?? ()
#21 0x000303ac in ?? ()
#22 0x00000111 in ?? ()
#23 0xdcbaabcd in ?? ()
#24 0x00000000 in ?? ()
(gdb)

This seg fault occurs while doing an SCP copy.

Program received signal SIGSEGV, Segmentation fault.
[Switching to thread 1004.0x400]
0x61ad321a in ssh_log () from H:\freepascal\RAT\Work\trash\libssh.dll
(gdb) backtrace
#0  0x61ad321a in ssh_log () from H:\freepascal\RAT\Work\trash\libssh.dll
#1  0x61ad8f9c in ssh_handle_packets () from
H:\freepascal\RAT\Work\trash\libssh.dll
#2  0x61ac5177 in channel_poll () from
H:\freepascal\RAT\Work\trash\libssh.dll
#3  0x61ad9bf4 in ssh_scp_write () from
H:\freepascal\RAT\Work\trash\libssh.dll
#4  0x005525a8 in TMYSSHTHREAD__SCPCOPYREMOTEFILE (SESSION=0x47d1c08,
REMOTEFILE=0x2e75738 "/media/live/datatest.txt", LOCALFILE=0x1003d0
"H:\\freepascal\\RAT\\Work\\datatest.txt", MODE=0, FILESTR=0x0,
INTERNALERRS=0x100448, this=0x2dcba30) at usshthread.pas:695
#5  0x00551544 in TMYSSHTHREAD__EXECUTE (this=0x2dcba30) at
usshthread.pas:371
#6  0x00435f2b in CLASSES_THREADPROC$POINTER$$LONGINT ()
#7  0x0040df79 in SYSTEM_THREADMAIN$POINTER$$LONGINT ()
#8  0x76c51194 in KERNEL32!AcquireSRWLockExclusive () from
C:\Windows\system32\kernel32.dll
#9  0x779db3f5 in ntdll!RtlInsertElementGenericTableAvl () from
C:\Windows\system32\ntdll.dll
#10 0x779db3c8 in ntdll!RtlInsertElementGenericTableAvl () from
C:\Windows\system32\ntdll.dll
#11 0x00000000 in ?? ()
(gdb)

Has anybody found any similar issues under Windows 7?

I am new to gdb, is there something I can to to provide more information
that may help in fixing this?

Thanks for the help.

-- 
Eddy Valdes
Project Manager
Atronix Engineering
evaldes@xxxxxxxxxxxxxxxxxxxxxx