[Libreoffice-bugs] [Bug 113721] New: LO writer uses 100% one CPU Core after saving a file.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=113721

            Bug ID: 113721
           Summary: LO writer uses 100% one CPU Core after saving a file.
           Product: LibreOffice
           Version: 5.4.2.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: romain.guedj at openmailbox.org

Description:
Everything is fine
after a save, one core cpu stucks 100%. 
If I click on Save as, CPU goes down until I validate. LO saves the file and
CPU goes up again.
If I close the file, and keep LO opened, CPU goes down. 
If I open this file again, CPU goes up. 

Bug works on another computer with LO 5.2 on linux with the same file.
OpenGl desactivated

example of few line of strace :

4755  13:42:13.982038 recvmsg(11, {msg_namelen=0}, 0) = -1 EAGAIN (Resource
temporarily unavailable)
4755  13:42:13.982074 poll([{fd=11, events=POLLIN}, {fd=12, events=POLLIN}], 2,
2997) = 1 ([{fd=11, revents=POLLIN}])
4755  13:42:15.902936 recvmsg(11, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="\6\0\267\7\374'\206\0F\1\0\0@\0@\4\0\0\0\0\324\3\"\3\324\3\n\3\20
\1\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
4755  13:42:15.903103 recvmsg(11, {msg_namelen=0}, 0) = -1 EAGAIN (Resource
temporarily unavailable)
4755  13:42:15.903322 poll([{fd=11, events=POLLIN|POLLOUT}], 1, -1) = 1
([{fd=11, revents=POLLOUT}])
4755  13:42:15.903396 writev(11, [{iov_base="&\3\2\0@\0@\4", iov_len=8},
{iov_base=NULL, iov_len=0}, {iov_base="", iov_len=0}], 3) = 8
4755  13:42:15.903457 poll([{fd=11, events=POLLIN}], 1, -1) = 1 ([{fd=11,
revents=POLLIN}])
4755  13:42:15.903497 recvmsg(11, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="\1\1\270\7\0\0\0\0F\1\0\0\0\0\0\0\324\3\"\3\324\3\n\3\20
\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0)
= 32
4755  13:42:15.903543 recvmsg(11, {msg_namelen=0}, 0) = -1 EAGAIN (Resource
temporarily unavailable)
4755  13:42:15.903617 poll([{fd=11, events=POLLIN|POLLOUT}], 1, -1) = 1
([{fd=11, revents=POLLOUT}])
4755  13:42:15.903675 writev(11, [{iov_base="&\3\2\0@\0@\4", iov_len=8},
{iov_base=NULL, iov_len=0}, {iov_base="", iov_len=0}], 3) = 8
4755  13:42:15.903739 poll([{fd=11, events=POLLIN}], 1, -1) = 1 ([{fd=11,
revents=POLLIN}])
4755  13:42:15.903797 recvmsg(11, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="\1\1\271\7\0\0\0\0F\1\0\0\0\0\0\0\324\3\"\3\324\3\n\3\20
\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0)
= 32

How could I sent you the complete log ?

Thanks


Steps to Reproduce:
1.open a file
2. LO saves the file
3. working with file
4. one core cpu uses 100%
5. Core goes down as soon as I close only this file

Actual Results:  
I could work on the file, save it again but CPU goes up

Expected Results:
normal use instead of increasing use cpu


Reproducible: Always


User Profile Reset: No



Additional Info:


User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0

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