Re: new crash on leaving a message

[Peter Bloomfield <PeterBloomfield bellsouth net>]

Hi Jack!

On 08/22/2016 06:52:59 PM Mon, Jack wrote:
> On 2016.08.22 13:06, Jack wrote:
> > I have a message I just received, which I have no trouble viewing, but as soon as I leave the message 
> > (deleting, selecting another message, selecting another mailbox) balsa crashes.  Strace ends with:
...
> > write(2, "\n(balsa:19050): gtkhtml-CRITICAL"..., 98
> > (balsa:19050): gtkhtml-CRITICAL **: html_engine_unrealize: assertion 'HTML_IS_ENGINE (e)' failed
...
> > Balsa is compiled from git, gtk3 branch, with gtkmthm 4.10.0.  I suppose I'll reinstall webkit-gtk, but 
> > that's a long compile, and I'm leaving on vacation tomorrow, so I doubt I can troubleshoot much before I get 
> > home.  I was able to manually edit the mbox file, and move the bad message to its own file, so I can keep 
> > working.
> >
> > The odd thing about the message is that it's rather short, with
> > Content-Type: text/html; charset=utf-8
> > Content-Transfer-Encoding: base64
> > and the unencoded content being essentially "<p>message about a successful bill payment</p>" where the 
> > message is only one line, 118 characters, with no non-printable or other strange characters.
> >
> > I can try downgrading gtkhtml from 4.10.0 to 4.8.5 to see if it matters, but I just don't understand why the crash is 
> > on leaving the message, not on displaying it.  By the way, "display source" works fine, and closing the 
> > source window is also OK.  Not sure what else I can try, in terms of debugging.
> >
> > As always, thanks for any suggestions.
> >
> > Jack
> Well, it turns out this is not new.  Google led me back to this mailing list in August, 2011.  Ildar reported the issue, and 
> Peter's response was "Yes, I see the same thing.  It seems to happen when when clearing the display after showing an HTML 
> message part to show something else, and it seems to happen only for certain HTML parts, not all, but predictably for the 
> vulnerable parts." and suggested it was a gtkhtml4 bug.  Well, I have a short example - where should I file it?  Even if the 
> entire HTML snippet is <p>.....</p> which may not be legal html, it shouldn't just crash.  Unfortunately, I'm leaving 
> for vacation tomorrow, so I don't have enough time to switch back to webkit until I return.

I just configured Balsa with html-widget = gtkhtml4 for the first time in a while. It just doesn't work well! 
Scrolling a message that needs scrolling made the text disappear in a flash, and I had the same crash on 
selecting a non-html message. We must be using the widget incorrectly, but I'm not sure how.

Has anyone had success with a gtkhtml4 build?

Peter