Christopher Faylor wrote:
On Wed, Apr 26, 2006 at 05:12:31PM -0500, mwoehlke wrote:
I'm seeing something funny. While trying to build a large program on
Cygwin using cl.exe (i.e. I am building a non-Cygwin app; just using
Cygwin to drive 'make'), every now and then, cl.exe hangs. Before you
tell me I'm on the wrong list :-), here's the funny part. If I do 'ps'
in Cygwin, I can see the 'cl' process, along with its WINPID. However,
it doesn't show up in task manager! Also, there are about five processes
that are clearly Cygwin processes (bash.exe or sh.exe) that do NOT show
up in Cygwin's 'ps'.
Is there any logic to this that I'm missing?
Yes. Windows doesn't implement the exec* family of linux system calls
so cygwin has to kludge it.
Ok, thanks for the information. It looks like it is actually bash that
is hanging (I wonder, is the exec() failing to clean up properly), but
I'm not sure what to do about it. If I try to attach with gdb, gdb hangs
(but I can 'kill' it with a fatal - i.e. not-SIGINT - signal). Any
suggestions on where to go from here to try to debug this? Is there a
'gdb-on-cygwin' howto somewhere that I'm missing?
(See also http://cygwin.com/ml/cygwin/2006-04/msg00844.html)
--
Matthew
Ok, so the quotes aren't entirely original.
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