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From Nathan Beyer <ndbe...@apache.org>
Subject Re: Remaining M9 issues
Date Thu, 26 Mar 2009 01:52:19 GMT
On Wed, Mar 25, 2009 at 2:53 PM, Mark Hindess
<mark.hindess@googlemail.com> wrote:
> In message <3301EDEF-1A1F-423D-9425-7B9DA200215A@gmail.com>, Nathan Beyer
> writes:
>> On Mar 25, 2009, at 5:40 AM, Tim Ellison <t.p.ellison@gmail.com> wrote:
>> > Nathan Beyer wrote:
>> >> On Tue, Mar 24, 2009 at 9:10 AM, Tim Ellison
>> >> <t.p.ellison@gmail.com> wrote:
>> >>> 3. Various AWT/Swing crashes/ failures
>> >>
>> >> Linux AWT/Swing crashes - works on Ubuntu 8.04, doesn't on 8.10
>> >> https://issues.apache.org/jira/browse/HARMONY-6123
>> >
>> > Looks like a problem in the X.11 libraries, and looking around it
>> > seems that we are far from the only ones who have uncovered this problem.
>> >
>> Agreed, but I got the impression that the new behavior is considered
>> correct and it will be up to apps to fix their own code. Have you
>> found any indication to the contrary?
> Well, there have been mistakes in the past - such as nested locking not
> working as documented in the XLockDisplay man page and with locks being
> held by the toolkit when user callbacks were invoked - but I think it is
> quite likely that we need to do something to fix this.
> We currently call XInitThreads to allow multi-threaded support but we
> do not actually seem to call XLockDisplay.  I don't think this can be
> correct though I don't know which xlib calls need to be locking - I'm
> guessing at least the two mentioned in your JIRA.  If we had access
> to the native bridge tool, we could probably make a safe fix of just
> wrapping all Xlib calls with a lock but that would probably be overkill.
> Having access to the native bridge tool would be useful anyway.[0]

Is anyone from Intel still around that could provide some insight into
the 'native bridge tool'? Anyone know who we could contact to maybe
get some more information? This would help out with some of the Vista
issues I'm seeing in Swing as well.

> I will try to get an ubuntu 8.10 kvm image installed and have a look at this
> problem but since awt/swing are not really a priority for me.
>> > Since it is not a regression, and apparently not caused by anything we
>> > can fix (unless we can find a workaround), I propose that we declare
>> > it a "Non-Blocker" for M9.
> +1
>> I'm fine with that. Maybe indicate it is a known issue.
> 1+  It should be mentioned in the release notes.
> Regards,
>  Mark.
> [0] I think there are some modularity problems lurking here... I think
> luni depends on the org.apache.harmony.misc.accessors which depends on
> some native bridge code in awt.  I suspect the common native bridge
> probably should be brought back in to the misc module.

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