Created attachment 8285 [details]
backtrace

I also had some trouble with KCrash, because I clicked the button to save the backtrace and when it opened the file save dialog, it couldn't list any directory contents or save anything.  There was an error message about not connecting to D-Bus.

for me it's impossible to pass the identification platform  .
i have the following message :
ksmserver PID 6898 segmentation fault (11) 
temps 05/08/2016 19:02;58
this is just after the last update of mageia6  yesterday .
 how can i do to start again ?

CC: (none) => arbedall

after today update it's ok again .....

but i still have two   minors  quirks :
-1 : when starting the following message:
kaslr disabled : not on cmd line (hibernation selected) 
i don't know what it's means ?
-2 : the US flag on identification platform (before it was the french flag)

i have again ksmserver error !!

1-i start my computer
2-i choose last mageia6 kernel 4.7.0 desktop-2.mga6
3-i enter my password in identify window
4- i have a black screen and a window message : could not start ksmserver, Check your installation. OK ?

5 after a click on ok  , 2 cases possible :
 a) mageia start 
 b) mageia stop with  error : no system tray detected on this system 
unable to start , exiting
OK ?

can you install debuginfo packages and report this bug upstream please ?

It looks like there's maybe a race condition too when logging in to Plasma.

Sometimes I immediately see a "xmessage" dialog saying it couldn't start ksmserver, sometimes I see that after the splash, sometimes I don't see that but after the splash fades I get a black screen with no desktop, sometimes I get a KDE crash dialog for ksmserver, and sometimes everything works fine.

since the last updates of plasma , for me everything works correctly and i also start with  the new mageia screen ;=)

actually i have with grub2 asus card UEFI
il i chose windows 10 =in all c
mga6  4.6.3 ok
mga6  4.7.2 => crash
mga6  4.7.0 => crash

sometimes i have a  screen with tree ???
sometimes a black screen 
sometimes a message asking video parameters but anyone works
sometimes i have the autentification window   with US flag on down right corner  but i cannot enter nothing!
but  if i chose 4.6.3 or 4.7.0 i have the good auth windows and MGA6 start .

i was saying that in all cases if i select win10 in grub i have a black screen .

(In reply to Nicolas Lécureuil from comment #7)
> can you install debuginfo packages and report this bug upstream please ?

please what's name and where are thoses packages ?

Created attachment 8367 [details]
some errors messages during startup MGA6-4.7.2

Created attachment 8368 [details]
second pict with error

Created attachment 8369 [details]
bad authent. window

from this time :no keybord, no mouse, nothing is possible.

There are some comments on this bug that aren't relevant to what this actual bug is about (ksmserver crashing or otherwise not starting correctly).

This may be related to, or even the cause of, Bug 19294.

We'll have to see if it persists with the latest Plasma updates pushed to Cauldron.

Priority: Normal => release_blocker
Severity: normal => critical

Is this bug still valid? I'm using plasma daily and haven't had segfaults recently.

Whiteboard: (none) => NEEDINFO

Hard to say.  I've only definitively seen the issue on a physical machine that I no longer have access to.

(In reply to David Walser from comment #18)
> Hard to say.  I've only definitively seen the issue on a physical machine
> that I no longer have access to.

Then I think we can close it and consider that if it's going to be a blocking bug we'll see new bug reports when Stabilization Snapshot 2 is released. Since we can't debug it I think it's the most sensible approach.

closnig for now.

Status: NEW => RESOLVED
CC: (none) => mageia
Resolution: (none) => FIXED