[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[İsmail]

https://bugs.kde.org/show_bug.cgi?id=393275

İsmail  changed:

   What|Removed |Added

 CC||ismailsahillio...@gmail.com

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[İsmail]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #10 from İsmail  ---
Created attachment 143860
  --> https://bugs.kde.org/attachment.cgi?id=143860=edit
New crash information added by DrKonqi

partitionmanager (3.3.1) using Qt 5.15.2

- What I was doing when the application crashed:
I was trying to format an SD memory card on /dev/sdb. However KDE Partition
Manager was never ending up with scanning /dev/sdb. Then I had to cancel the
scanning process which led to crash.

-- Backtrace (Reduced):
#9  0x7f88bda77fe7 in qt_message_fatal (message=...,
context=...) at global/qlogging.cpp:1914
#10 QMessageLogger::fatal (this=this@entry=0x7fff68054850,
msg=msg@entry=0x7f88bdd7d800 "QThread: Destroyed while thread is still
running") at global/qlogging.cpp:893
#11 0x7f88bda78863 in QThread::~QThread (this=,
__in_chrg=) at thread/qthread.cpp:456
#12 0x7f88bf4f03e7 in DeviceScanner::~DeviceScanner (this=,
this=) at
/usr/src/debug/kpmcore-3.3.0-2.9.x86_64/src/core/devicescanner.h:33
#13 DeviceScanner::~DeviceScanner (this=, this=)
at /usr/src/debug/kpmcore-3.3.0-2.9.x86_64/src/core/devicescanner.h:33

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

Andrius Štikonas  changed:

   What|Removed |Added

 CC||jyn...@gmail.com

--- Comment #9 from Andrius Štikonas  ---
*** Bug 403927 has been marked as a duplicate of this bug. ***

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #8 from Andrius Štikonas  ---
(In reply to Ivo C from comment #7)
> I wasn't sure if this is an actual crash in comment #1 with version 3.2.1
> because of "signal: Aborted" and because I observed something strange:
> 
> 1. Perform steps from original report
> 2. One of the KPM processes crashes/aborts
> 3. Close drkonqi and that process resumes
> 4. "No administative privileges" dialogue appears
> 5. Select "run"
> 6. KPM opens again
> 
> However, the fix should take care of this scenario. Still, I thought it's
> worth mentioning to you. Is this the desired behaviour when one process
> crashes?

This was the artefact of Partition Manager needing to restart GUI to run as
root, so this does not happen in KAuth branch where GUI does not run as root.
And next release should be based on what is now in KAuth branch anyway.

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Ivo C]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #7 from Ivo C  ---
I wasn't sure if this is an actual crash in comment #1 with version 3.2.1
because of "signal: Aborted" and because I observed something strange:

1. Perform steps from original report
2. One of the KPM processes crashes/aborts
3. Close drkonqi and that process resumes
4. "No administative privileges" dialogue appears
5. Select "run"
6. KPM opens again

However, the fix should take care of this scenario. Still, I thought it's worth
mentioning to you. Is this the desired behaviour when one process crashes?

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

Andrius Štikonas  changed:

   What|Removed |Added

 Status|CONFIRMED   |RESOLVED
  Latest Commit||https://commits.kde.org/par
   ||titionmanager/2482eba7dea7e
   ||6f5e5bc1e459a2c610908a596b3
 Resolution|--- |FIXED

--- Comment #6 from Andrius Štikonas  ---
Git commit 2482eba7dea7e6f5e5bc1e459a2c610908a596b3 by Andrius Štikonas.
Committed on 19/04/2018 at 11:29.
Pushed by stikonas into branch 'kauth'.

Do not allow closing ScanProgressDialog

M  +8-1src/gui/scanprogressdialog.cpp
M  +2-2src/gui/scanprogressdialog.h

https://commits.kde.org/partitionmanager/2482eba7dea7e6f5e5bc1e459a2c610908a596b3

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #5 from Andrius Štikonas  ---
(In reply to Andrius Štikonas from comment #4)
> OK, so I think in the kauth branch with which I'm working crash happens for
> slightly different reasons than in the master branch (which I haven't
> investigated).
> 
> In KAuth branch the crash happens only if ScanProgressDialog is closed
> before DeviceScanner starts.

Do you think it would be good enough if I just not allow to close
ScanProgressDialogWindow until scanning is finished?

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #4 from Andrius Štikonas  ---
OK, so I think in the kauth branch with which I'm working crash happens for
slightly different reasons than in the master branch (which I haven't
investigated).

In KAuth branch the crash happens only if ScanProgressDialog is closed before
DeviceScanner starts.

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #3 from Andrius Štikonas  ---
So for me it crashes even earlier

1. Run KPM
2. Enter root password
3. Close "Scanning devices..." with 'X'
5. New ScanProgressDialog reappears and KPM crashes in a second

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=393275

Andrius Štikonas  changed:

   What|Removed |Added

 Status|UNCONFIRMED |CONFIRMED
 Ever confirmed|0   |1

--- Comment #2 from Andrius Štikonas  ---
Ok, I can reproduce this crash.

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[partitionmanager] [Bug 393275] Crash after dismissing "Scanning devices..." and closing KPM

[Ivo C]

https://bugs.kde.org/show_bug.cgi?id=393275

--- Comment #1 from Ivo C  ---
Actually, could this be drkonqi activating erroneously?

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