In general, detecting segfaults in arbitrary processes on the system probably isn't possible.
Specifically, I looked up the docs for you ;). Attach a handler to the QWebEngineView::renderProcessTerminated signal :). https://doc.qt.io/qt-5/qwebengineview.html#renderProcessTerminated <https://doc.qt.io/qt-5/qwebengineview.html#renderProcessTerminated> Hope this helps, -glyph > On Feb 26, 2017, at 11:16 AM, Kevin Mcintyre <kebi...@gmail.com> wrote: > > Thanks glyph - really appreciate all the times you've answered my questions! > > QtWebEngineView is running a subprocess. > > /home/ubuntu/Qt5.8.0/5.8/gcc_64/libexec/QtWebEngineProcess --type=renderer > --disable-accelerated-video-decode --disable-gpu-memory-buffer-video-frames > --enable-threaded-compositing --use-gl=desktop --disable-webrtc-hw-encoding > --primordial-pipe-token=032B94B57A61DAE34BD0F90551F9ABB6 --lang=en-US > --enable-pinch --num-raster-threads=2 --content-image-texture-target=3553 > > QT can sometimes be helpful, but bug resolution can take a while. > > Any suggestions outside of twisted for detecting segfaults? I'm thinking > just to monitor /var/log/syslog > > > > > > On Sat, Feb 25, 2017 at 11:59 PM, Glyph Lefkowitz <gl...@twistedmatrix.com > <mailto:gl...@twistedmatrix.com>> wrote: > > > On Feb 25, 2017, at 4:41 PM, Kevin Mcintyre <kebi...@gmail.com > > <mailto:kebi...@gmail.com>> wrote: > > > > I have a long running twisted pyqt process which occasionally throws a > > Received signal 11. > > > > I believe it's in the underlying QtWebEngineView since the twisted process > > continues to run. Whatever the reason I would like to figure out a way to > > catch this and stop the reactor either in process, or by another process > > monitor. Any suggestions either twisted or otherwise would be greatly > > appreciated. > > Presumably the QtWebEngineView is running a subprocess, then? This is really > a Qt question rather than a Twisted question, because the QtWebEngineView > should be emitting some kind of signal when its rendering process crashes. > (If it doesn't I imagine you're just out of luck here and you should report a > bug to the Qt developers...) > > -glyph > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com <mailto:Twisted-Python@twistedmatrix.com> > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python > <http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python> > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
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