dchmelik-Re5JQEeQqe8AvxtiuMwx3w posted on Fri, 2 Sep 2022 19:37:53 -0700 as excerpted:
> Like for past few years until earlier this year, pan always crashes fast > again (on Slackware64 15+current GNU/Linux). > > Pan always says something like this before crashing: (pan:16759): > Gtk-CRITICAL **: 19:23:47.724: IA__gtk_tree_view_column_set_fixed_width: > assertion 'fixed_width > 0' failed What version of pan (FWIW I'm running live-git-master pan at the commit shown in my headers, here)? And do you know or can you check whether it's built against gtk2 or gtk3? (If you can't check the package deps try running ldd /usr/bin/pan | grep gtk in a terminal, changing the path if appropriate of course. Here I get libgtkspell3-3.so.0 and libgtk-3.so.0, so it's a gtk3 build, not gtk2.) Until quite recently pan was built by default against gtk2, and that looks like a bug I had somewhat frequently with it. However, while it *DID* mess up the UI, it did *not* crash pan, which would continue to run, just with the UI messed up (only showing one column in the overview/header pane). So while you might have that bug too, it shouldn't be triggering the crash, just by coincidence happening before whatever does trigger the crash. Meanwhile, gtk2 is being phased out and some distros don't even have it available any longer, so those it's quite likely a recent pan is built against gtk3. The problem there is that only /quite/ recently were a number of critical gtk3 and other newer library bugs fixed (while pan has a new maintainer now, it was effectively frozen for a few years, during which it unfortunately got pretty stale against current libraries, and all those accumulated new-version ports and associated bugs took some time to fix), so unless you have a *really* new version, you're likely seeing a now fixed crash related to the first still-quite-buggy gtk3 and other library upgrade ports. Pan version 0.151, "Butcha", was released in late June. That should have most of the fixes and be pretty stable (tho a quick look says there's more than translations committed since then, but I'd say I've been stable since about then or a bit earlier), but given distro release cycles and the fact that (as a Gentooer) I don't know how current Slackware 15+current actually is, I'd say 50/50 you're on something before that, and the fact that you're still crashing increases the odds further, to I'd say 70/30 that you're running something without those bugfixes. Of course it could be a problem with a specific library you're running, too. At least one of the problems I had for a few months was I suspect a gmime library issue. I'm now stable but my gmime (3.2.13) was last updated Aug 22 (tho pan was stable for me somewhat before that, so it wasn't that version that fixed it for me) so... Anyway, the most frustrating crashing bug I did have recently, from the switch to building to gtk3 until just a few months ago (sometime early this year), was somewhat reliably triggered by mouse-move over pan's body pane. As long as I was very careful to keep the mouse away from the body pane, pan would normally stay running, and just a quick stray over the body pane often wouldn't trigger a crash either, but if I lingered and especially if I tried to scroll the body pane (which had been and is now again a habit, so I was doing it quite a bit... until this bug forced me out of the habit for a few months), it'd generally only be seconds until pan crashed. Unfortunately for pinning down the fix, I learned to keep the mouse well away from the body pane for awhile, and only fairly recently discovered that mouse over the body pane didn't crash pan any longer, so I really don't know what fixed it, only that /something/, /maybe/ libgmime related (I know a couple other non-crash bugs were gmime related, not sure about this one), did indeed fix it, and I've not had a pan crash in some months now. So assuming pan isn't crashing so fast you don't have the chance, try keeping the mouse out of the body pane and see if that helps it keep running. If it does, you very likely have the same bug I did, and /something/ I updated recently fixed it. If pan crashes before you get that far or when the mouse is elsewhere, you probably have a different bug. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman _______________________________________________ Pan-users mailing list Pan-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/pan-users