[Bug 350902] Re: [ubuntu 8.10] kio_imap4 hangs

Jonathan Thomas echidnaman at kubuntu.org
Fri Jan 15 04:06:42 GMT 2010


** Changed in: kdepimlibs (Ubuntu Karmic)
   Importance: Undecided => Low

** Changed in: kdepimlibs (Ubuntu Karmic)
       Status: New => In Progress

** Changed in: kdepimlibs (Ubuntu Karmic)
     Assignee: (unassigned) => Jonathan Thomas (echidnaman)

** Description changed:

+ #############
+ 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  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
+   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 ()

** Also affects: karmic-backports
   Importance: Undecided
       Status: New

-- 
[ubuntu 8.10] kio_imap4 hangs
https://bugs.launchpad.net/bugs/350902
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