Re: Signal handling problem in 1.5.7 ? - Was: Re: Program randomly hangs.....

["Arash Partow" <arashp at hotmail dot com>]

Hi Volker,

Sometime ago there were problems with signal handling and threads
in cygwin. The main issue was that signal handling was not occurring
properly when threads were running and when a signal was fired the
signal handler would not relinquish control properly back to whatever
was control the threads in this case cygwins thread pool. As far
as I know the snapshot from the 31st of Jan 04 has resolved those
issue. As for "processes" thats another issue altogether.




Arash Partow

__________________________________________________
Be one who knows what they don't know,
Instead of being one who knows not what they don't know,
Thinking they know everything about all things.
http://www.partow.net








> > Christopher Faylor wrote:
> >
> >     On Tue, Feb 03, 2004 at 09:03:08AM -0500, Volker Quetschke wrote:
> >
> > I got a longer strace.  These are only the first lines, I attached the
> > complete output as dmake_hung.strace.gz:
> >
> >
> > Let me say it again: I do not look at unsolicited straces.  I am also
> > not interested in teaching people how to debug problems.  I mention this
> > in case you are expecting me to step in.
> >
> > No, I'm not especially expecting *YOU* to step in. I'm just reporting
> > facts. Do you have any problems with this?
> >
> >
> > If anyone tries to build Openoffice within a cygwin environement, by
> > following these build instructions
> > <http://tools.openoffice.org/dev_docs/build_windows_tcsh.html>
> > he/she will most propably hit this problem.
> >
> >
> > I have no idea about the changes in the last two cygwin dll
> > releases, but I realized that the dmake program started to
> > freeze since I upgraded to 1.5.7. I get this problem on two
> > different build systems and therefore decided to let the cygwin
> > mailinglist know about my problems. I gave all the infos as they
> > are required by <http://cygwin.com/problems.html>.
> >
> >
> > Take my humble apologies if I missed an information, I will
> > immediately provide every missing bit.
> >
> >
> > I hope that there is someone here, besides me, who is interested in
> > doing this.  I don't think it is entirely unrealistic of me to expect
> > that I don't have to be involved in every single issue that shows up for
> > cygwin.  I hope that one of the other technical people here will be
> > able to help you.
> >
> > Maybe I was suffering from the misled impression that someone who
> > changed this
> >
> >
> > - Revamp signal processing to allow beginnings of ability to send
> > signals to threads.  (Christopher Faylor)
> >
> >
> > in the last cygwin release might know why a program started to
> > freeze randomly. It never did that on cygwin before and it is
> > used on a widely spread set of platforms to build Openoffice.
> >
> >
> >     Just setting expectations.
> >
> > Just giving facts.
> >
> > Volker
> >
> > P.S.: I was hoping that some of the strace lines and the reviving
> > with CTRL-Z and fg would ring a bell, but this obviously is not
> > the case.
> >
> >
> > --
> > PGP/GPG key  (ID: 0x9F8A785D)  available  from  wwwkeys.de.pgp.net
> > key-fingerprint 550D F17E B082 A3E9 F913  9E53 3D35 C9BA 9F8A 785D












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