Ubuntu
kdepimlibs package

[ubuntu 8.10] kio_imap4 hangs

Bug #350902 reported by LimCore on 2009-03-29

This bug affects 2 people

	Status	Importance	Assigned to
Karmic Backports	Fix Released	Medium	Unassigned
kdepimlibs	Fix Released	Medium	kde-bugs #203715
kdepimlibs (Ubuntu)	Fix Released	Medium	Unassigned
Karmic	Fix Released	Medium	Jonathan Thomas

Bug Description

#############
SRU information:
Impact: All imap users will probably experience this bug at some point. Very unpleasant.
How the bug was fixed: Upstream created a patch to stop an infinite recursion in the imap mail retrieval code.
Patch: http://websvn.kde.org/?revision=1074179&view=revision
How to reproduce the bug: There isn't any hard testcase, but in general resuming from sleep or loosing your internet connection triggers the bug.
Regression potential: Small, kdepim upstream is pretty good about such things.
#############

I quit kmail but then I notices two instances of kio_imap4 where running, using 100% cpu.
I am not sure if this hanging of kio_imap4 started before I quit kmail or after.
No other program uses mail.

Versions:
ii kdelibs-bin 4:4.1.4-0ubuntu1~intrepid executables for all KDE 4 core applications
ii kdepimlibs5 4:4.1.4-0ubuntu1~intrepid core libraries for KDE PIM 4 applications
ii kmail 4:4.1.4-0ubuntu1~intrepid KDE Email cli

Some info:

PID SYSCPU USRCPU VGROW RGROW RDDSK WRDSK ST EXC S CPU CMD 1/1
8487 0.00s 1.97s 0K 0K 0K 0K -- - R 56% kio_imap4
8229 0.00s 1.08s 0K 0K 0K 0K -- - R 31% kio_imap4

PID PPID USERNAME GROUP STDATE STTIME ST EXC S CPU CMD 1/1
8229 7306 rafal rafal 2009/03/29 14:10:36 -- - R 36% kio_imap4
8487 7306 rafal rafal 2009/03/29 14:20:37 -- - R 35% kio_imap4

0x00007f2180d7e570 in QObject::disconnect () from /usr/lib/libQtCore.so.4
(gdb) bt
#0 0x00007f2180d7e570 in QObject::disconnect () from /usr/lib/libQtCore.so.4
#1 0x00007f2180d0e2ce in QTextStream::QTextStream () from /usr/lib/libQtCore.so.4
#2 0x00007f2181133a1d in ?? () from /usr/lib/libkdecore.so.5
#3 0x00007f2181130ebb in kDebugStream () from /usr/lib/libkdecore.so.5
#4 0x00007f2181c4c760 in KIO::TCPSlaveBase::disconnectFromHost () from /usr/lib/libkio.so.5
#5 0x00007f2179be4c01 in ?? () from /usr/lib/kde4/kio_imap4.so
#6 0x00007f2179be6ada in ?? () from /usr/lib/kde4/kio_imap4.so
#7 0x00007f2179c07f62 in ?? () from /usr/lib/kde4/kio_imap4.so
#8 0x00007f2179c09808 in ?? () from /usr/lib/kde4/kio_imap4.so
#9 0x00007f2179be94cd in ?? () from /usr/lib/kde4/kio_imap4.so
#10 0x00007f2179bf1e79 in ?? () from /usr/lib/kde4/kio_imap4.so
#11 0x00007f2181c3f7db in KIO::SlaveBase::dispatch () from /usr/lib/libkio.so.5
#12 0x00007f2179be5ff4 in ?? () from /usr/lib/kde4/kio_imap4.so
#13 0x00007f2181c444ec in KIO::SlaveBase::dispatchLoop () from /usr/lib/libkio.so.5
#14 0x00007f2179be5d00 in kdemain () from /usr/lib/kde4/kio_imap4.so
#15 0x0000000000407015 in _start ()

#0 0x00007f2180d6f440 in QMetaObject::checkConnectArgs () from /usr/lib/libQtCore.so.4
#1 0x00007f2180d79cda in QObject::connect () from /usr/lib/libQtCore.so.4
#2 0x00007f2180d0e2f2 in QTextStream::QTextStream () from /usr/lib/libQtCore.so.4
#3 0x00007f2181133a1d in ?? () from /usr/lib/libkdecore.so.5
#4 0x00007f2181130ebb in kDebugStream () from /usr/lib/libkdecore.so.5
#5 0x00007f2179be36f9 in ?? () from /usr/lib/kde4/kio_imap4.so
#6 0x00007f2179be6b93 in ?? () from /usr/lib/kde4/kio_imap4.so
#7 0x00007f2179c07f62 in ?? () from /usr/lib/kde4/kio_imap4.so
#8 0x00007f2179c09808 in ?? () from /usr/lib/kde4/kio_imap4.so
#9 0x00007f2179be94cd in ?? () from /usr/lib/kde4/kio_imap4.so
#10 0x00007f2179bf1e79 in ?? () from /usr/lib/kde4/kio_imap4.so
#11 0x00007f2181c3f7db in KIO::SlaveBase::dispatch () from /usr/lib/libkio.so.5
#12 0x00007f2179be5ff4 in ?? () from /usr/lib/kde4/kio_imap4.so
#13 0x00007f2181c444ec in KIO::SlaveBase::dispatchLoop () from /usr/lib/libkio.so.5
#14 0x00007f2179be5d00 in kdemain () from /usr/lib/kde4/kio_imap4.so
#15 0x0000000000407015 in _start ()

See original description

Tags:

Related branches

lp:ubuntu/karmic-backports/kdepimlibs

lp:ubuntu/karmic-proposed/kdepimlibs

lp:ubuntu/lucid/kdepimlibs

Revision history for this message

Oren Held (oren-held) wrote on 2009-05-16:

Happens to me two. I think this might be related to the ancient bug https://bugs.kde.org/show_bug.cgi?id=114131 which I'm trying to reopen. Add votes, maybe.

Revision history for this message

Rian Schmits (m-j-schmits) wrote on 2009-08-05:

same for me (on kubuntu 9.04)

Revision history for this message

T. Middleton (timtoo) wrote on 2009-11-06:

I find something like this happens to me on my laptop sometimes after resume from sleep mode. It's happened many, many times, but never consistently, so I've been unable to see any pattern.

It does seem to have something to do with resuming from sleep mode for me. I suspect perhaps it could be the unexpected disappearance of network during some imap procedure that sends kio_imap4 into a loop, or something like that. Just a wild guess.

Revision history for this message

Jonathan Thomas (echidnaman) wrote on 2010-01-13:

Fix committed for KDE 4.4 RC2. I'll look into an SRU for Kubuntu 9.10.

affects:	kdepim (Ubuntu) → kdepimlibs (Ubuntu)
Changed in kdepimlibs (Ubuntu):
importance:	Undecided → Low
status:	New → Fix Committed

Jonathan Thomas (echidnaman) on 2010-01-15

Changed in kdepimlibs (Ubuntu Karmic):
assignee:	nobody → Jonathan Thomas (echidnaman)
importance:	Undecided → Low
status:	New → In Progress
description:	updated

Revision history for this message

Scott Kitterman (kitterman) wrote on 2010-01-15:

Ack from ubuntu-backporters for this fix in karmic-backports

Changed in karmic-backports:
importance:	Undecided → Medium
status:	New → Confirmed

Revision history for this message

Jonathan Thomas (echidnaman) wrote on 2010-01-15:

kdepimlibs_4.3.2-0ubuntu1.1.dsc Edit (2.4 KiB, text/plain)

Buildlog: https://edge.launchpad.net/~echidnaman/+archive/ppa/+build/1446335

Changed in kdepimlibs (Ubuntu):
importance:	Low → Medium
Changed in kdepimlibs (Ubuntu Karmic):
importance:	Low → Medium

Revision history for this message

Jonathan Thomas (echidnaman) wrote on 2010-01-15:

kdepimlibs_4.3.2-0ubuntu1.1.diff.gz Edit (25.2 KiB, text/x-diff)

Scott Kitterman (kitterman) on 2010-01-15

Changed in karmic-backports:
status:	Confirmed → Fix Released

Revision history for this message

John Dong (jdong) wrote on 2010-01-15:

ACK from -sru for kdepimlibs_4.3.2-0ubuntu1.1 ; proceed with upload and testing. Thanks!

Revision history for this message

Scott Kitterman (kitterman) wrote on 2010-01-15: Please test proposed package

Accepted into karmic-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Changed in kdepimlibs (Ubuntu Karmic):
status:	In Progress → Fix Committed
tags:	added: verification-needed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2010-01-23:

#10

This bug was fixed in the package kdepimlibs - 4:4.3.95-0ubuntu1

---------------
kdepimlibs (4:4.3.95-0ubuntu1) lucid; urgency=low

  [ Jonathan Thomas ]
  * New upstream release candidate:
    - Bump build-depend versions
    Fixes LP: #350902

[ Jonathan Riddell ]
* kdepimlibs5-dev replaces old kdepim-runtime-libs4
-- Jonathan Thomas <email address hidden> Tue, 19 Jan 2010 21:23:32 -0500

Changed in kdepimlibs (Ubuntu):
status:	Fix Committed → Fix Released

Bug Watch Updater (bug-watch-updater) on 2010-01-27

Changed in kdepimlibs:
status:	Unknown → Fix Released

Revision history for this message

Jonathan Thomas (echidnaman) wrote on 2010-01-30:

#11

...anybody going to test?

Revision history for this message

LimCore (limcore) wrote on 2010-01-30:

#12

How to test it, it is fixed in 9.10 or I need 10.04 beta?

Revision history for this message

Jonathan Thomas (echidnaman) wrote on 2010-01-30:

#13

See comment #9.

Revision history for this message

Martin Pitt (pitti) wrote on 2010-04-29:

#14

Anyone who can test the proposed package? If not, the proposed update will be removed again. Thanks!

Revision history for this message

Andreas Wenning (andreas-wenning) wrote on 2010-05-23:

#15

I've been running with the proposed package since it was added to the archive and haven't noticed any problems, neither any hangs like described.

Martin Pitt (pitti) on 2010-05-23

tags:

added: verification-done
removed: verification-needed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2010-05-24:

#16

This bug was fixed in the package kdepimlibs - 4:4.3.2-0ubuntu1.1

---------------
kdepimlibs (4:4.3.2-0ubuntu1.1) karmic-proposed; urgency=low

* Add kubuntu_01_fix_kio_imap_cpu.diff from upstream to solve an infinite
loop in the kio_imap4 kio slave (LP: #350902)
-- Jonathan Thomas <email address hidden> Wed, 13 Jan 2010 11:18:35 -0500

Changed in kdepimlibs (Ubuntu Karmic):
status:	Fix Committed → Fix Released

Bug Watch Updater (bug-watch-updater) on 2011-02-03

Changed in kdepimlibs:
importance:	Unknown → Medium

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kde-bugs #114131
[RESOLVED WORKSFORME] Edit
kde-bugs #203715
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[ubuntu 8.10] kio_imap4 hangs

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