** Changed in: canonical-devices-system-image
Milestone: 14 => x1
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Title:
stale lock files freeze a
On staging armhf (the click test app is armhf) it's still pretty much as
described in comment #15. It is possible to get the "edit comnfig" to
hang, and after the fake stale lock file one will need a second start
attempt so that app really starts.
So this is with Qt 5.6.1 which includes all the pa
** Changed in: canonical-devices-system-image
Milestone: x1 => 14
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Title:
stale lock files freeze a
Right, that test case could be tested now on xenial+overlay, even though
it doesn't necessarily reflect what happens in real life use case.
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https
That was already tested and did not fix the problem per comment #15
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Title:
stale lock files freeze app
All the fixes we had picked for https://bileto.ubuntu.com/#/ticket/1411
for backporting 5.4 are in 5.5 and 5.6, but we didn't and don't have a
good test case to prove if they fix our problems or not.
For reference, the patches we tried to pick but decided not to land for
potential risks were:
QLo
Oh, and this should be "easily" reproduced by first creating a QSettings
INI file, then filling up the hard drive and then trying to write to the
settings.
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This also affect i-network (bug #1615474).
Looking at the upstream bug https://bugreports.qt.io/browse/QTBUG-44771
this has been fixed in Qt 5.5.
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I just ran into this with Contacts. The lock file was created in April
but removing it restored the app. Seems it got corrupted on a recent
run. I was testing startup time and opening and closing the apps.
Do we have any line on a fix for this? or is it no longer present for
5.6?
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Michael later confirmed my findings that there's no certainty in the
patches fixing the issue or not causing new issues, partially because
the problem is so hard to reproduce reliably in the real use case.
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This won't be fixed for OTA-13 because of the uncertainty with the
patches even though the silo is there. More likely is to have a final
fix on the new LTS Qt basis.
** Changed in: canonical-devices-system-image
Milestone: 13 => xenial
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I've updated the silo to sync with another upload. I get same behavior
with and without the silo:
1. On first run, edit config does not hang.
2. When pressing Fake stale lock file, the subsequent edit config selections do
hang.
3. When the app does not start (after fake stale lock file), the seco
Using silo 009 and the test app, the app hangs when pressing edit config
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Title:
stale lock files freez
** Changed in: qtbase-opensource-src (Ubuntu RTM)
Importance: Undecided => High
** Changed in: qtbase-opensource-src (Ubuntu RTM)
Status: New => Confirmed
** Changed in: qtbase-opensource-src (Ubuntu RTM)
Assignee: (unassigned) => Timo Jyrinki (timo-jyrinki)
** Changed in: canonic
Here's a click package which I think allows reproducing the issue:
http://notyetthere.org/data/locked-crasher.mzanetti_0.1_armhf.click
*IMPORTANT NOTE*
I *think* this faked lock files are exactly like the stale ones we see,
however, as I don't have one handy right now, I can't guarantee it's exa
This indeed looks much more like what we need. Definitely worth a try,
yes.
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Title:
stale lock files fr
So this _might_ help: https://codereview.qt-project.org/#/c/110346/. The
patch is in upstream 5.4 branch but not yet in our 5.4.1 based package.
>From bug comments "I was myself bitten by the bug. After a crash, plasma
would not start anymore because of an empty kglobalshortcutsrc.lock.
Hence extra
tbh I was a bit sceptical about that previous patch anyways. If I read
it correctly, it only tried to not leave stale lock files in some
circumstances. Problem with our case is that it might happen while the
app is suspended and then OOM killed which means there is no chance for
the Qt code to clea
QA managed to reproduce it still. However, from going through the git
still, there is a untried combination of patches that we haven't yet
backported so I will rebuild the silo.
** Also affects: qtbase-opensource-src (Ubuntu RTM)
Importance: Undecided
Status: New
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** Changed in: canonical-devices-system-image
Milestone: 11 => 12
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Title:
stale lock files freeze a
Testing would be welcome at the silo, which has been in built state
since Wednesday.
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Title:
stale lock
Ticket https://requests.ci-train.ubuntu.com/#/ticket/1368 created, a
vivid build will be available later there.
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Note that to OTA-7 we fixed one stale process lock files bug #1500444.
That was the 2015-05-26 commit from
http://code.qt.io/cgit/qt/qtbase.git/log/src/corelib/io/qlockfile_unix.cpp
The only other patch that could sound worthwhile would be the syncing-
to-disk commit
http://code.qt.io/cgit/qt/qtb
** Changed in: canonical-devices-system-image
Importance: Undecided => Critical
** Changed in: canonical-devices-system-image
Status: New => Confirmed
** Changed in: canonical-devices-system-image
Milestone: None => 11
** Changed in: canonical-devices-system-image
Assignee: (u
I had the same problem with the Telegram app, it wasn't starting, I just
got blank screen after running the app.
Michael suggested looking for .lock files...
turns out I had .config/com.ubuntu.telegram//auth.lock
after removing that file Telegram app works again :)
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Sorry for not answering to the bug https://bugs.launchpad.net/music-
app/+bug/1556376 in time.
I can confirm that removing a stale
/home/phablet/.config/com.ubuntu.music/com.ubuntu.music.conf.lock
solves the issues i had with the music app.
Thanks for the work and yay i have music again :-)
T
I've linked the workaround in the description. At this point however, I
would not yet say all apps should work around it themselves.
** Description changed:
Debugging why the Notes app would freeze for some people, I found there
were some stale .lock files around. Those .lock files are autocr
Do we want affected apps to possibly implement your workaround as a
stopgap until the real solution is implemented? If so, could you provide
the original workaround?
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: qtbase-opensource-src (Ubuntu)
Status: New => Confirmed
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