[kontact] [Bug 377395] Kontact is crashing during start up

[Bug Janitor Service]

https://bugs.kde.org/show_bug.cgi?id=377395

Bug Janitor Service  changed:

   What|Removed |Added

 Status|NEEDSINFO   |RESOLVED
 Resolution|WAITINGFORINFO  |WORKSFORME

--- Comment #19 from Bug Janitor Service  ---
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Bug Janitor Service]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #18 from Bug Janitor Service  ---
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Justin Zobel]

https://bugs.kde.org/show_bug.cgi?id=377395

Justin Zobel  changed:

   What|Removed |Added

 Status|REPORTED|NEEDSINFO
 CC||justin.zo...@gmail.com
 Resolution|--- |WAITINGFORINFO

--- Comment #17 from Justin Zobel  ---
The upstream Qt bug is closed (https://bugreports.qt.io/browse/QTBUG-59876).

As this crash is quite old now, can you please confirm if this crash still
occurs on a current version?

This bug has been set to "NEEDSINFO/WAITINGFORINFO", if you are able to update
the bug report please mark it as reported when you add the new information,
thank you.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377395

Christoph Feck  changed:

   What|Removed |Added

 CC||matth...@heizmann.name

--- Comment #16 from Christoph Feck  ---
*** Bug 403417 has been marked as a duplicate of this bug. ***

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Kevin Funk]

https://bugs.kde.org/show_bug.cgi?id=377395

Kevin Funk  changed:

   What|Removed |Added

 CC||kf...@kde.org

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377395

Christoph Feck  changed:

   What|Removed |Added

 CC||i...@kobaltwit.be

--- Comment #15 from Christoph Feck  ---
*** Bug 385847 has been marked as a duplicate of this bug. ***

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Denis Kurz]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #14 from Denis Kurz  ---
*** Bug 384083 has been marked as a duplicate of this bug. ***

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Logan Byrd]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #13 from Logan Byrd  ---
Created attachment 107561
  --> https://bugs.kde.org/attachment.cgi?id=107561=edit
New crash information added by DrKonqi

kontact (5.5.1) using Qt 5.7.1

- What I was doing when the application crashed:

Clicking on "File>Quit" to exit Kontact crashes it if it is attempting to
update folders on an IMAP account. This appears to happen 100% of the time. I
manually quit frequently due to a separate bug I'm experiencing, whering moving
or deleting multiple messages (even just two) will cause the messages to move,
but they will never visibly leave the inbox, and no other changes to the inbox
will display until Kontact is restarted.

-- Backtrace (Reduced):
#6  0x7fe3e20e45f3 in
QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest(net::URLRequest*,
base::Callback const&, GURL*) () at
/lib64/libQt5WebEngineCore.so.5
#7  0x7fe3e2e5c071 in
net::NetworkDelegate::NotifyBeforeURLRequest(net::URLRequest*,
base::Callback const&, GURL*) () at
/lib64/libQt5WebEngineCore.so.5
#8  0x7fe3e2f63ad7 in net::URLRequest::Start() () at
/lib64/libQt5WebEngineCore.so.5
#9  0x7fe3e2484b70 in content::ResourceLoader::StartRequestInternal() () at
/lib64/libQt5WebEngineCore.so.5
#10 0x7fe3e2484c68 in content::ResourceLoader::StartRequest() () at
/lib64/libQt5WebEngineCore.so.5

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Logan Byrd]

https://bugs.kde.org/show_bug.cgi?id=377395

Logan Byrd  changed:

   What|Removed |Added

 CC||lo...@byrd.pl

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377395

Christoph Feck  changed:

   What|Removed |Added

 CC||m...@vowleyfarm.co.uk

--- Comment #12 from Christoph Feck  ---
*** Bug 382560 has been marked as a duplicate of this bug. ***

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Denis Kurz]

https://bugs.kde.org/show_bug.cgi?id=377395

Denis Kurz  changed:

   What|Removed |Added

 CC||kde...@posteo.de
Version|unspecified |5.4.2

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377395

Christoph Feck  changed:

   What|Removed |Added

 CC||robby.engelm...@igfs-ev.de

--- Comment #11 from Christoph Feck  ---
*** Bug 379623 has been marked as a duplicate of this bug. ***

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #10 from Christoph Feck  ---
Thanks for the analysis, Viktor. Hopefully this information allows Kontact
developers to fix the issue.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Viktor Engelmann]

https://bugs.kde.org/show_bug.cgi?id=377395

Viktor Engelmann  changed:

   What|Removed |Added

 CC||viktor.engelm...@qt.io

--- Comment #9 from Viktor Engelmann  ---
Hi everyone, I'm from Qt and working on the bug Steve reported. The Stacktraces
I see here look like 3 completely unrelated problems.

The original issue might be https://bugreports.qt.io/browse/QTBUG-57608

The Fedora Retrace Server stacktrace might be related to
https://bugreports.qt.io/browse/QTBUG-59692

And I am very confident that the crash in
QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest is a dereferencing of a
dangling pointer, caused by kontact. You probably use the same
QWebEngineRequestInterceptor for (and make it a child of) multiple
QWebEnginePages so when one of the pages is closed, it deletes the interceptor
and the next navigation accesses the dangling pointer, causing the crash.
Comparing the stacktrace to the 5.6.2 version of network_delegate_qt.cpp, this
seems highly likely.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Steve]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #8 from Steve  ---
>From the Qt bug:

Could it be that you use the same QUrlRequestInterceptor multiple times, pass
the Tab/WebEngineView/WebEnginePage to the constructor of the
RequestInterceptor (making it the RequestInterceptors parent) and the crash
happens at the next navigation after you closed the last view you created? That
would mean that the RequestInterceptor is deleted by closing the tab (because
that's its parent) and then the next navigation accesses pointer which is
dangling at this point.

Is this correct? Any comments I should relay to the Qt folks?

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Steve]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #7 from Steve  ---
OK, just as I predicted, the Qt people are asking me questions I have no idea
how to answer. Can someone from the Kontact team hop on the Qt bug at
https://bugreports.qt.io/browse/QTBUG-59876 and participate in answering
questions? I'll do my part if anything Fedora related comes along. Thanks.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Steve]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #6 from Steve  ---
OK. I filed a bz here:
https://bugreports.qt.io/browse/QTBUG-59876

I was kind of hoping someone from KDEpim team would interact with the Qt people
because I have almost no chance of answering their questions about kontact's
code. I guess we'll see what comes up.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Christoph Feck]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #5 from Christoph Feck  ---
Steve, the Qt bug tracker is at https://bugreports.qt.io/

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Steve]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #4 from Steve  ---
Here's the output from the Fedora Retrace Server after analyzing one of my
crashes:

https://retrace.fedoraproject.org/faf/reports/1636854/

I guess this confirms the issue is in Qt. Does anyone here have contacts with
Qt project or know who to direct this to?

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Steve]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #3 from Steve  ---
I was able to get a core dump to get a full backtrace. Only including some
lines right before the crash.

#1  0x7ff0688d54fe in KCrash::defaultCrashHandler(int) ()
at /lib64/libKF5Crash.so.5
#2  0x7ff0635157e0 in  () at /usr/lib64/libc-2.23.so
#3  0x7ff05e964b3e in
QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest(net::URLRequest*,
base::Callback const&, GURL*) (this=0x7ff03a50,
request=, callback=..., newUrl=0x7ff00069b140)
at
/usr/src/debug/qtwebengine-opensource-src-5.6.2/src/core/network_delegate_qt.cpp:111
requestInfo = {d_ptr = {d = 0x7ff000608710}}
resourceInfo = 0x7ff000560920
resourceType = content::RESOURCE_TYPE_STYLESHEET
navigationType = 0
qUrl = {d = 0x7ff00041cf60}
interceptor = 0x55c3ceecdd50
renderProcessId = -277647872
renderFrameId = 1305607009
params = 
  {url = {d = 0x7ff00041cfc0}, isMainFrameRequest = 2, navigationType =
32752, renderProcessId = 3, renderFrameId = 0}
__FUNCTION__ = "OnBeforeURLRequest"
#4  0x7ff05f258210 in
net::NetworkDelegate::NotifyBeforeURLRequest(net::URLRequest*,
base::Callback const&, GURL*) (this=0x7ff03a50,
request=request@entry=0x7ff00069b030, callback=...,
new_url=new_url@entry=0x7ff00069b140)
at
/usr/src/debug/qtwebengine-opensource-src-5.6.2/src/3rdparty/chromium/net/base/network_delegate.cc:26
tracking_profile = 
  {scoped_profile_ = {birth_ = 0x0, stopwatch_ = {start_time_ =
{ms_ = 0}, wallclock_duration_ms_ = 0, current_thread_data_ = 0x0,
excluded_duration_ms_ = 0, parent_ = 0x0}}}
#5  0x7ff05f21c800 in net::URLRequest::Start() (this=0x7ff00069b030)
at
/usr/src/debug/qtwebengine-opensource-src-5.6.2/src/3rdparty/chromium/net/url_request/url_request.cc:514
tracking_profile25 = 
  {scoped_profile_ = {birth_ = 0x0, stopwatch_ = {start_time_ =
{ms_ = 0}, wallclock_duration_ms_ = 0, current_thread_data_ = 0x0,
excluded_duration_ms_ = 0, parent_ = 0x0}}}
error = 
---Type  to continue, or q  to quit---
tracking_profile = 
  {scoped_profile_ = {birth_ = 0x0, stopwatch_ = {start_time_ =
{ms_ = 0}, wallclock_duration_ms_ = 0, current_thread_data_ = 0x0,
excluded_duration_ms_ = 0, parent_ = 0x0}}}
tracking_profile2 = 
  {scoped_profile_ = {birth_ = 0x0, stopwatch_ = {start_time_ =
{ms_ = 0}, wallclock_duration_ms_ = 0, current_thread_data_ = 0x0,
excluded_duration_ms_ = 0, parent_ = 0x0}}}
#6  0x7ff05f447da0 in content::ResourceLoader::StartRequestInternal()
(this=0x7ff0003b9900)
at
/usr/src/debug/qtwebengine-opensource-src-5.6.2/src/3rdparty/chromium/content/browser/loader/resource_loader.cc:498

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Steve]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #2 from Steve  ---
I've had about 20 recurrences of this bug today. Sometimes one of the threads
is holding a mutex in the video drivers. The only solution is to reboot the
whole system. I've rebooted my system about 10 times today. I have also spent 5
hours trying to access my email so that I can work. Between akonadi aborting
and kontact crashing on start up, the whole mess is unusable. Not to mention
that when it filters an email it has to resync the whole inbox which has > 150k
emails in it. This alone takes 45 minutes on a good day.

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Rex Dieter]

https://bugs.kde.org/show_bug.cgi?id=377395

--- Comment #1 from Rex Dieter  ---
This one looks to be crashing down in QtWebEngine for some reason,

Thread 13 (Thread 0x7fe6627fc700 (LWP 6031)):
[KCrash Handler]
#6  0x7fe6a9b5db3e in
QtWebEngineCore::NetworkDelegateQt::OnBeforeURLRequest(net::URLRequest*,
base::Callback const&, GURL*) () at /lib64/libQt5WebEngineCore.so.5
#7  0x7fe6aa451210 in
net::NetworkDelegate::NotifyBeforeURLRequest(net::URLRequest*,
base::Callback const&, GURL*) () at /lib64/libQt5WebEngineCore.so.5
#8  0x7fe6aa415800 in net::URLRequest::Start() () at
/lib64/libQt5WebEngineCore.so.5

-- 
You are receiving this mail because:
You are watching all bug changes.

[kontact] [Bug 377395] Kontact is crashing during start up

[Rex Dieter]

https://bugs.kde.org/show_bug.cgi?id=377395

Rex Dieter  changed:

   What|Removed |Added

 CC||rdie...@math.unl.edu

-- 
You are receiving this mail because:
You are watching all bug changes.