Bug 107970

Summary: Build ID: 3d9a8b4b4e538a85e0782bd6c2d430bafe583448 consume 100% CPU
Product: LibreOffice Reporter: Ladislav Nesnera <nesnera>
Component: LibreOfficeAssignee: Not Assigned <libreoffice-bugs>
Status: RESOLVED WORKSFORME    
Severity: normal CC: sberg.fun, xiscofauli
Priority: medium    
Version: 5.3.3.2 release   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
Crash report or crash signature: Regression By:
Attachments: htop result - 100% CPU
strace soffice
some contents of /proc/pid/ items

Description Ladislav Nesnera 2017-05-20 10:46:49 UTC 
Created attachment 133414 [details]
htop result - 100% CPU

Version: 5.3.3.2
Build ID: 3d9a8b4b4e538a85e0782bd6c2d430bafe583448
CPU Threads: 4; OS Version: Linux 4.10; UI Render: default; VCL: gtk3; Layout Engine: new; 
Flatpak version
Locale: cs-CZ (en_GB.UTF-8); Calc: group

Empty document is enough for this behavior.. :-O
Comment 1 Ladislav Nesnera 2017-05-20 11:01:06 UTC 
If a dialog box is open problem disappear for that moment.
Comment 2 Xisco Faulí 2017-05-20 11:26:54 UTC Comment hidden (obsolete)
Comment 3 Ladislav Nesnera 2017-05-22 02:39:41 UTC 
I have the same result for
$ flatpak run org.libreoffice.LibreOffice --writer --safe-mode
Comment 4 Ladislav Nesnera 2017-05-24 18:11:54 UTC 
Do you need more info?
Comment 5 Chris Murphy 2017-05-31 23:27:09 UTC 
Same result for me on a clean installation of Fedora 26 (pre-release).

LibreOffice 5.3.3.2 3d9a8b4b4e538a85e0782bd6c2d430bafe583448

$ flatpak info org.libreoffice.LibreOffice
Ref: app/org.libreoffice.LibreOffice/x86_64/fresh
ID: org.libreoffice.LibreOffice
Arch: x86_64
Branch: fresh
Origin: org.libreoffice.LibreOffice-origin
Commit: afbd32feded570c05b71745d17df7e090b913619417423e4795600aa90552cab
Location: /var/lib/flatpak/app/org.libreoffice.LibreOffice/x86_64/fresh/afbd32feded570c05b71745d17df7e090b913619417423e4795600aa90552cab
Installed size: 700.9 MB
Runtime: org.gnome.Platform/x86_64/3.24
Comment 6 Chris Murphy 2017-05-31 23:30:49 UTC 
Created attachment 133764 [details]
strace soffice
Comment 7 Chris Murphy 2017-05-31 23:33:01 UTC 
The gist of the attached strace is this repeating set of lines


poll([{fd=9, events=POLLIN}, {fd=13, events=POLLIN}, {fd=20, events=POLLIN}], 3, 230) = 1 ([{fd=9, revents=POLLIN}])
read(9, "\1\0\0\0\0\0\0\0", 16)         = 8
write(9, "\1\0\0\0\0\0\0\0", 8)         = 8
poll([{fd=9, events=POLLIN}, {fd=13, events=POLLIN}, {fd=20, events=POLLIN}], 3, 230) = 1 ([{fd=9, revents=POLLIN}])
read(9, "\1\0\0\0\0\0\0\0", 16)         = 8
write(9, "\1\0\0\0\0\0\0\0", 8)         = 8
poll([{fd=9, events=POLLIN}, {fd=13, events=POLLIN}, {fd=20, events=POLLIN}], 3, 230) = 1 ([{fd=9, revents=POLLIN}])
read(9, "\1\0\0\0\0\0\0\0", 16)         = 8
write(9, "\1\0\0\0\0\0\0\0", 8)         = 8

[...]
Comment 8 Chris Murphy 2017-05-31 23:49:12 UTC 
Created attachment 133765 [details]
some contents of /proc/pid/ items
Comment 9 kotlinlearner-github 2017-06-03 08:31:50 UTC 
I also have this bug on Linux Mint 18 Xfce.
And I do not even have to open an empty document, it appears only some seconds after I ran 
flatpak run org.libreoffice.LibreOffice
(without --writer or something).
Comment 10 Stephan Bergmann 2017-06-06 14:20:47 UTC 
(In reply to bugzilla from comment #7)
> The gist of the attached strace is this repeating set of lines
> 
> 
> poll([{fd=9, events=POLLIN}, {fd=13, events=POLLIN}, {fd=20,
> events=POLLIN}], 3, 230) = 1 ([{fd=9, revents=POLLIN}])
> read(9, "\1\0\0\0\0\0\0\0", 16)         = 8
> write(9, "\1\0\0\0\0\0\0\0", 8)         = 8
> poll([{fd=9, events=POLLIN}, {fd=13, events=POLLIN}, {fd=20,
> events=POLLIN}], 3, 230) = 1 ([{fd=9, revents=POLLIN}])
> read(9, "\1\0\0\0\0\0\0\0", 16)         = 8
> write(9, "\1\0\0\0\0\0\0\0", 8)         = 8
> poll([{fd=9, events=POLLIN}, {fd=13, events=POLLIN}, {fd=20,
> events=POLLIN}], 3, 230) = 1 ([{fd=9, revents=POLLIN}])
> read(9, "\1\0\0\0\0\0\0\0", 16)         = 8
> write(9, "\1\0\0\0\0\0\0\0", 8)         = 8
> 
> [...]

What's missing from the attachment is everything leading up to those poll calls, so one would get an idea what code is doing that (i.e., what FDs 9, 13, 20 are bound to).
Comment 11 Stephan Bergmann 2017-06-08 16:18:48 UTC 
(In reply to Stephan Bergmann from comment #10)
> What's missing from the attachment is everything leading up to those poll
> calls, so one would get an idea what code is doing that (i.e., what FDs 9,
> 13, 20 are bound to).

bugzilla@colorremedies.com, can you provide the full strace log?
Comment 12 Telesto 2017-06-08 21:49:00 UTC 
Description matches bug 108246

Comment 9 bug 108246
The issue appears to be in glib2 see https://git.gnome.org/browse/glib/commit/?id=9ba95e25b74adf8d62effeaf6567074ac932811c

After rebuilding glib2 with this patch, the issue was resolved.
Comment 13 Chris Murphy 2017-06-28 17:16:09 UTC 
Weird, I have zero comment notification emails for this bug, no idea why as my preferences are set to email me. Anyway the latest flakpak update fixed this, flatpak reports Commit: 0de4a5ba7b2802a289fc10fb3ed0306f5b4ff3fe860285da465ba7e50d9eecc6 and Libreoffice reports Version: 5.3.4.2 Build ID: f82d347ccc0be322489bf7da61d7e4ad13fe2ff3
Comment 14 Ladislav Nesnera 2017-06-30 14:15:48 UTC 
I can confirm Build ID: f82d347ccc0be322489bf7da61d7e4ad13fe2ff3 is OK. Thanks (y)