Bug 125465 - LO hangs at launching (svp rendering only)
Summary: LO hangs at launching (svp rendering only)
Status: RESOLVED INVALID
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
Version:
(earliest affected)
6.3.0.0.alpha1+
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: haveBacktrace
Depends on:
Blocks:
 
Reported: 2019-05-23 18:57 UTC by Julien Nabet
Modified: 2019-08-28 18:07 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
bt with debug symbols (svp) (43.14 KB, text/plain)
2019-05-23 18:57 UTC, Julien Nabet
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Julien Nabet 2019-05-23 18:57:24 UTC
Description:
On pc Debian x86-64 with master sources updated today, I got an hang when launching LO with svp rendering

Steps to Reproduce:
1. On terminal, type:
export SAL_USE_VCLPLUGIN=svp
2. launch Writer or Impress for example


Actual Results:
No response after 30 secs

Expected Results:
LO module should launch


Reproducible: Always


User Profile Reset: No



Additional Info:
Comment 1 Julien Nabet 2019-05-23 18:57:44 UTC
Created attachment 151638 [details]
bt with debug symbols (svp)
Comment 2 Julien Nabet 2019-05-23 18:58:41 UTC
When using gdb with "make debugrun", I can't reproduce the problem.

I had to launch LO from a terminal and use from another terminal:
gdb --pid `pgrep soffice`
Comment 3 Xisco Faulí 2019-06-10 16:06:21 UTC
Hi Julien,
Still reproducible in master?
I've tried with older versions of LibreOffice but nothing happens if I launch them with SAL_USE_VCLPLUGIN=svp ? What i'm missing ?
Comment 4 Julien Nabet 2019-06-10 16:52:29 UTC
(In reply to Xisco Faulí from comment #3)
> Hi Julien,
> Still reproducible in master?
> I've tried with older versions of LibreOffice but nothing happens if I
> launch them with SAL_USE_VCLPLUGIN=svp ? What i'm missing ?

I still reproduce this but I wonder now if it's a real bug. Indeed perhaps svp rendering needs a specific way to launch LO?
Comment 5 Michael Stahl (allotropia) 2019-08-28 16:59:55 UTC
the supported way to launch headless mode is "soffice --headless".

typically you want to add more arguments to listen on a socket, or --convert some files...

maybe it's not ideal that with only SAL_USE_VCLPLUGIN=svp you get a process that just hangs but i'm not sure if it's strictly speaking a bug.
Comment 6 Michael Stahl (allotropia) 2019-08-28 17:05:35 UTC
so what you can do with this behavior is launch soffice --headless once and then go to another terminal and run soffice --convert and the process will transfer its arguments to the first one and exit immediately, and the --headless process will do the actual work.

is that a feature that anybody considers useful? i have no idea.
Comment 7 Julien Nabet 2019-08-28 18:07:42 UTC
Thank you Michael for your feedback.
Let's not waste more time about this one.