Rawhide and F25 issues affecting QtWebEngine/QupZilla and Chromium

[Kevin Kofler]

Hi,

there are at least 3 issues in Rawhide (some or all of which also affect the
Fedora 25 branch!) making both QupZilla (the main user of QtWebEngine) and
Chromium fail to start up. One of them has no known workaround. And from my
investigation, none of them appears to actually be IN QtWebEngine or
Chromium code:

1. https://bugzilla.redhat.com/show_bug.cgi?id=1363914
[abrt] qupzilla: base::debug::BreakDebugger(): qupzilla killed by SIGABRT
Apparent cause: selinux-policy
Reason: because "setenforce 0" works around it
F25 affected?: unknown
Workaround: sudo setenforce 0

2. https://bugzilla.redhat.com/show_bug.cgi?id=1347436
fedora-import-state sets incorrect mode for /dev/shm when dracut places it
in /run/initramfs/state (causes various things to break, inc. webkit and
Boxes)
Apparent cause: initscripts
Reason: as per the bug report
F25 affected?: yes (the bug was reported against F25, but it also happens in
               Rawhide)
Workaround: sudo chmod a+w /dev/shm

3. https://bugzilla.redhat.com/show_bug.cgi?id=1364781
glibc 2.24 (2.23.90) breaks Chromium and QtWebEngine
Received signal 4 ILL_ILLOPN 7f58262eac90
Apparent cause: glibc
Reason: bisecting of OpenEmbedded changes by the OpenEmbedded folks:
https://www.mail-archive.com/[e-mail]/msg...
F25 affected?: probably yes (it has the same glibc version)
Workaround: none known

In addition to these issues, there are also 4 crashes in the Nouveau
graphics driver that can make QtWebEngine and probably Chromium crash:
1. https://bugzilla.redhat.com/show_bug.cgi?id=1349608
   (pushbuf_kref, invoked by nv50_flush)
2. https://bugzilla.redhat.com/show_bug.cgi?id=1350275
   (nouveau_fence_trigger_work)
3. https://bugzilla.redhat.com/show_bug.cgi?id=1362307
   (nouveau_pushbuf_data)
4. https://bugzilla.redhat.com/show_bug.cgi?id=1364756
   (nv50_screen_fence_update)
I reassigned them to xorg-x11-drv-nouveau, but they have still not been
looked at by a Nouveau maintainer.

Considering that these issues break both the only up-to-date Qt browser
(QupZilla) and the high-profile Chromium browser, I think they should have a
really high priority.

        Kevin Kofler