1.7.0-60: diff -qr crashes

[Torsten Schütze <torsten dot schuetze at gmx dot net>]

Hi,

I've installed Cygwin Beta 1.7.0 (version -51) around mid of July.
Currently, version -60 is installed. Now (at least since version -53 or
so) I repeatedly encounter a bug with diff (diffutils 2.8.7-1). I use
diff to compare my working directory with the files on an usb stick. The
exact command line is

diff -qr . /cygdrive/w/user/schuetze/work/2009

Note that the 32 GByte usb stick (cygdrive w) is encrypted with
truecrypt 6.2a and formatted as FAT32. (Don't know if this matters. But
the error occurs with other directories as well.)

Depending on the exact place in the file system I'll get a core dump
immediately or first some errors and then the core dump.

bash-3.2$ pwd
/cygdrive/e/user/schuetze/work/2009
bash-3.2$ diff -qr . /cygdrive/w/user/schuetze/work/2009
      1 [main] diff 2376 sig_send: error sending signal -34 to pid 2376,
pipe handle 0x750, Win32 error 998
Segmentation fault (core dumped)

One folder downwards the file hierarchy everything works fine, at least
today. But with

bash-3.2$ pwd
/cygdrive/e/user/schuetze/work/2008
bash-3.2$ diff -qr . /cygdrive/w/user/schuetze/work/2008
      1 [main] diff 3692 _cygtls::handle_exceptions: Error while dumping
state (probably corrupted stack)
Segmentation fault (core dumped)

I will attach both diff.exe.stackdump, the core file from the folder
2009 as diff.exe.stackdump-1, the one from the 2008 folder as
diff.exe.stackdump-2.

Note, that there are no errors with Cygwin 1.5 (cygwin 1.5.24).

My questions are:
- Is this a known error with Cygwin 1.7.0-60?
- What can I do about it? Is there a fix available?
- Is the stack dump helpful or should I compile diff with debug symbols
and gdb diff?

If required I can provide the output of cygcheck -s -v -r

Torsten

Exception: STATUS_ACCESS_VIOLATION at eip=C0000128
eax=00000000 ebx=00000000 ecx=0022B3BC edx=7C90E514 esi=00000000 edi=00000000
ebp=0022B3C8 esp=0022B3C8 program=C:\cygwin\bin\diff.exe, pid 2376, thread main
cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
Stack trace:
Frame     Function  Args
0022B3C8  C0000128  (00000728, 0000EA60, 000000A4, 0022B4BC)
0022B4D8  610B9C85  (6120C50C, 00000001, 003B0023, 00230000)
0022B598  610BA53A  (00000001, 0022B654, 10062738, 610CA724)
0022B5A8  610BA5CF  (00000000, 00000001, 0022B5F8, 00000000)
10062738  610CA724  (6F632F41, 4F2F6564, 536E6570, 682F4143)
End of stack trace

Exception: STATUS_ACCESS_VIOLATION at eip=C0000128
eax=00000000 ebx=00000000 ecx=0022BEFC edx=7C90E514 esi=00000000 edi=00000000
ebp=0022BF08 esp=0022BF08 program=C:\cygwin\bin\diff.exe, pid 3692, thread main
cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
Stack trace:
Frame     Function  Args
0022BF08  C0000128  (0000072C, 0000EA60, 000000A4, 0022BFFC)
0022C018  610B9C85  (6120910C, 00000001, 00000000, 00000000)
0022C0D8  610BA53A  (6120C81C, 00000000, 10061250, 610CA724)
0022C0E8  610BA5CF  (00000000, 00000000, 0022C158, 6100229F)
10061250  610CA724  (7463656C, 73657275, 6369702F, 65727574)
      1 [main] diff 3692 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack)

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple