On Fri, 8 Oct 2010, Schwab,Wilhelm K wrote:
That's good to know. It probably should be a lot easier than that. At least
in the Windows vm, there is/was a debug menu (part of the vm's system menu)
that would dump the stack for the active process; I hacked it to dump all of
them rather than just one, fixed printAllStacks() along the way, and found my
problem. Think of an end user machine; you don't want to have to, or might not
be able to, install development tools just to get this type of basic
information. It might simply be a way of ruling out problems, but it could be
very important.
It's a lot easier than that. On windows just select the appropriate menu
item "Dump all processes" instead of "Dump call stack".
On un*x you can send SIGUSR1 to the process of the VM to make it print all
stacks. IIRC Cog uses this signal for another purpose, so it doesn't work
with Cog.
What was the problem with printAllStacks() that you had to fix?
Levente
________________________________________
From: [email protected]
[[email protected]] On Behalf Of Adrian Lienhard
[[email protected]]
Sent: Friday, October 08, 2010 8:21 AM
To: [email protected]
Subject: Re: [Pharo-project] 12186 image quit problem
You can attach gdb to the VM and then call printAllStacks().
HTH,
Adrian
On Oct 8, 2010, at 14:07 , Schwab,Wilhelm K wrote:
Do you have access to anything that will dump the callstacks for "all"
processes? One of my first encounters with the Squeak update streams was trying to
provide patches to the dump code... Similar features appeared years later, I suspect
unrelated to my efforts. What I did was hack the VM such that the dump (on the vm menu)
gave all (non-dead IIRC) processes rather than just that for the active process; for it
to be readable required some changes to when the dump adds a line feed.
Seeing which threads are waiting on semaphores wrapped in critical sections can
be a huge help in finding deadlocks. Get it to lock up, then ask the vm for
the dump and look for the offenders. If we don't have this, we should.
Bill
________________________________________
From: [email protected]
[[email protected]] On Behalf Of Alexander Lazarević
[[email protected]]
Sent: Friday, October 08, 2010 5:06 AM
To: [email protected]
Subject: Re: [Pharo-project] 12186 image quit problem
Just when I was about to test drive Torstens configuration of
ExternalWebBrowser, the image hangs somewhere while loading. I'm able
to abort it and find myself in some ensure block of an crticial
section of WeakArray finalization?! Trying to quit just hangs the
image for good.
BTW, this is on Windows.
Alex
2010/10/8 Pavel Krivanek <[email protected]>:
Strange...
Linux VM 4.0.3.2202 from squeakvm.org worked well and your prebuilt image
works with all this three virtual machines. Any idea why?
-- Pavel
On Fri, Oct 8, 2010 at 10:49 AM, Marcus Denker <[email protected]>
wrote:
On Oct 8, 2010, at 10:39 AM, Pavel Krivanek wrote:
Hmm, this is the result for Linux and
cogvm 3.9-7 and pharovm 3.10-3
can you try:
https://gforge.inria.fr/frs/download.php/27589/PharoCore-1.2-12186.zip
--
Marcus Denker -- http://www.marcusdenker.de
INRIA Lille -- Nord Europe. Team RMoD.
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