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Process 1179 (xapp-sn-watcher) of user 1000 dumped core #98

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BiNh0X opened this issue Jun 28, 2020 · 25 comments
Closed

Process 1179 (xapp-sn-watcher) of user 1000 dumped core #98

BiNh0X opened this issue Jun 28, 2020 · 25 comments

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@BiNh0X
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BiNh0X commented Jun 28, 2020

I just installed Linux Mint 20 Cinnamon and have been getting this error in System Reports every time I start the system:

Process 1179 (xapp-sn-watcher) of user 1000 dumped core

Bug tracking: https://termbin.com/9pja

Could you guide me or check the possibility of a bug? Thank you.

@mtwebster
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Hi, this is a known issue with the xapp-status applet, there's a fix but it's being tested at the moment. As a workaround can you run:

gsettings set org.x.apps.statusicon sn-watcher-advertise-host false

Then log out and back in.

This may prevent the crash, though some icons may end up in the systray applet on the panel instead of the xapp applet. Regardless, this isn't a fatal problem for your session. If you're otherwise unaffected right now, you can ignore it.

Can you share which programs you use that usually have an tray icon? I'm trying to gather all the names I can for testing.

@BiNh0X
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BiNh0X commented Jun 28, 2020

@mtwebster Thank you so much for your answer!

I'm glad you're already working on a fix and thank you for the code you provided me. In fact, i am not affected by the error, everything seems to be going well. The error message started appearing in the System Report shortly after I installed Google Chrome, after a clean installation of Linux Mint 20. So, there were only the Linux Mint system icons only, in the tray. The error is generated only once immediately after starting a session.

PS.: sorry for the english from Google Translator.

image

@BiNh0X
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BiNh0X commented Jun 28, 2020

@mtwebster I found out what is causing the error! These are the Chrome Background Apps, as per the print. I installed Mint 19.3 and there are no errors and the Chrome icon in the background appears in the tray, not on Mint 20.

image

@ghost
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ghost commented Jun 29, 2020

I also have google chrome installed and confirm this issue in Linux Mint 20 Cinnamon. In mintreport (System Reports), the crash report is logged every time I boot my PC. Waiting patiently for the fix.

@BiNh0X
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BiNh0X commented Jun 29, 2020

@TonyThuitai
I temporarily disabled "Run apps in the background when Google Chrome is closed" within Chrome, and the error stopped.

@ghost
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ghost commented Jun 30, 2020

I temporarily disabled "Run apps in the background when Google Chrome is closed" within Chrome, and the error stopped.

I disabled that but the error is still logged every time I start my PC but I did not use the workaround. Does it require the workaround posted by @mtwebster for the error to stop being logged?

@BiNh0X
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BiNh0X commented Jun 30, 2020

I temporarily disabled "Run apps in the background when Google Chrome is closed" within Chrome, and the error stopped.

I disabled that but the error is still logged every time I start my PC but I did not use the workaround. Does it require the workaround posted by @mtwebster for the error to stop being logged?

I did not apply the temporary solution proposed by @mtwebster . I just disabled the running of Chrome apps in the background and the errors stopped.

@ghost
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ghost commented Jul 2, 2020

@BiNh0X and @mtwebster I reinstalled Linux Mint 20 cinnamon and also installed google chrome. The issue no longer occurs and also not logged in mintreport (System Reports) application

@ghost
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ghost commented Jul 10, 2020

@mtwebster Zoom Client (deb, snap or flatpak), hplip-gui, LBRY are the applications that I use that have a tray icon and you can test them. Currently I have both google chrome and hplip-gui and the issue still occurs.

@mtwebster
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Hi, I posted some packages here:
https://www.dropbox.com/sh/fid83n4sjdexmqf/AAAeG_55lG-heNE8wxLiVwE2a?dl=0

They fix the issue for me, but I'd like a little bit of confirmation.

Download the packages to a folder, open a terminal in that folder, then:

sudo dpkg -i *.deb

If you've turned off the setting I mentioned here, you can re-enable it:

gsettings set org.x.apps.statusicon sn-watcher-advertise-host true

Then log out and back in.

Thanks

@ghost
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ghost commented Jul 11, 2020

@mtwebster Downloaded the packages and installed them (packages were downgraded and ignored current updates). Logged out and back in. Installed all applications that I use that have a system tray icon, set them up and rebooted the system. The issue is fixed and the error is no longer logged in the logs and the mintreport apps.

@ghost
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ghost commented Jul 14, 2020

@mtwebster Is the chrome tray icon supposed to be displayed when chrome is running? The chrome tray icon is not displayed when chrome is running. When the hplip-gui tray icon is set to hide when inactive, the icon only displays for a moment after boot and disappears but before the fix the icon is never displayed after boot when icon is set to hide. The issue #96 seems related because according to the original poster of the issue, reverting the suspected commit 624992e or reverting to xapps 1.8.7 fixes the issue for the user.

@mtwebster
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The chrome tray only shows if you've turned on 'Continue running background apps' in Chrome's advanced settings. The icon does show up for me. As for hplip if I set it to always visible, it stays visible. If I set it to only-when-active, it stays hidden unless I print something. It seems a bit buggy about deciding when to show or not, however. I also notice, when I log out, the hplip-systray process remains running, so if you log out/in a few times, you'll soon have many instances of it running. This could explain some of the bugginess.

Did you turn off that setting i mentioned above and not turn it back on?

gsettings set org.x.apps.statusicon sn-watcher-advertise-host true

This would affect chrome and hplip specifically.

@ghost
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ghost commented Jul 15, 2020

@mtwebster Did not turn off the setting but just installed the packages that you provided via Dropbox and logged off and then back on. By default chrome has the 'Continue running background apps' turned on but the icon does not show as shown in the attached image. Correction to my previous reply: When hplip-gui tray icon is set to hide when inactive and not connecting and using a hp printer, before the fix the icon never displays after boot but after the fix the icon displays for a moment after boot and then disappears.

chrome no tray icon

@Harry-W-Haines-III
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Harry-W-Haines-III commented Jul 17, 2020

I did not see this in LMDE 4 until today when I unblocked backports and did an update.
Then I did a clean install of LMDE 4 with the default repository settings and did the update.
Same thing.
https://termbin.com/uune and https://termbin.com/4vz1b

I applied the "gsettings set org.x.apps.statusicon sn-watcher-advertise-host false" work around.

It still segfaults twice but does not create a dump to upload to termbin.
[ 22.063146] show_signal_msg: 12 callbacks suppressed
[ 22.063148] xapp-sn-watcher[1696]: segfault at 0 ip 00007f6b5106089b sp 00007ffdb1ba7b60 err
[ 23.337148] xapp-sn-watcher[1880]: segfault at 0 ip 00007ffaf352c89b sp 00007ffe5a536940 error 4 in libglib-2.0.so.0.5800.3[7ffaf34c6000+7e000]
or 4 in libglib-2.0.so.0.5800.3[7f6b50ffa000+7e000]

I am running, Weather@mockturtl, Redshift, Power Manager, Removable Drives, User, Network, Sound, Brightness, and calendar@simonwiles.net in the notification area.
Screenshot-from-2020-07-17-17-01-05

Update: I ran MTWebster's packages from dropbox and the failure went away!

@Harry-W-Haines-III
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Just another update on this. With the identical hardware and software setup in Linux Mint 20 Cinnamon Edition, fully updated, I did not experience any issues. So on the LMDE 4, I apply MTWebster's packages from dropbox and blacklist 'xapp=1.8.8+debbie' to keep the update manager from nagging me.

@MegaV0lt
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I als noticed missing icons in the tray and the crash of snwatcher:

Jul 30 15:14:59 darkwing-pc kernel: [   34.490767] xapp-sn-watcher[2517]: segfault at 0 ip 00007f6c3ac886e4 sp 00007fff13e1c950 error 4 in libglib-2.0.so.0.6400.3[7f6c3ac1d000+84000]
Jul 30 15:14:59 darkwing-pc kernel: [   34.490776] Code: b7 6d db b6 c1 c8 02 3d 49 92 24 09 0f 97 c0 0f b6 c0 48 8d 5c 03 02 4b 0f be 44 3d 00 49 01 c6 48 85 ed 78 05 4d 39 e6 73 5c <45> 0f b6 3e 45 84 ff 74 53 4c 89 f7 e8 0b d5 ff ff 89 c7 8d 80 00
Jul 30 15:14:59 darkwing-pc cinnamon-session[1465]: WARNING: t+24,91878s: Application 'xapp-sn-watcher.desktop' killed by signal 11
Jul 30 15:14:59 darkwing-pc cinnamon-session[1465]: WARNING: t+24,91948s: App 'xapp-sn-watcher.desktop' respawning too quickly
Jul 30 15:14:59 darkwing-pc cinnamon-session[1465]: WARNING: t+24,91960s: Error on restarting session managed app: Component 'xapp-sn-watcher.desktop' crashing too quickly

Using LM Cinnamon 20

Some missing icons are: Nextcloud, KeepassXC, Franz (Multimessenger - franz.org)
Propably more, but not sure

@rcork
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rcork commented Aug 7, 2020

i was excited to run the developer preview of 1Password for linux and ran into this issue. Tray icon is missing and xapp-sn-watcher crashes. Looking forward to this fix.

@ptandler
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I think this is the same issue:
https://termbin.com/rzeq

@clefebvre
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Fixed in xapp 1.8.9.

@ghost
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ghost commented Sep 30, 2020

Not fixed. It likes to crash when I run obs-studio 26.0, compiled from source. LMDE4, xapp 1.8.10

===================================================================
 Info                                                              
===================================================================
           PID: 2938 (xapp-sn-watcher)
           UID: 1000 (ammako)
           GID: 1000 (ammako)
        Signal: 11 (SEGV)
     Timestamp: Wed 2020-09-30 00:01:49 EDT (1min 29s ago)
  Command Line: /usr/libexec/xapps/sn-watcher/xapp-sn-watcher
    Executable: /usr/libexec/xapps/sn-watcher/xapp-sn-watcher
 Control Group: /user.slice/user-1000.slice/session-2.scope
          Unit: session-2.scope
         Slice: user-1000.slice
       Session: 2
     Owner UID: 1000 (ammako)
       Boot ID: a5ad6d2802b0487d81d67d23b1e5ae9c
    Machine ID: 2da860379b704a0c9b0dc3da694d3b2d
      Hostname: mint
       Storage: /var/lib/systemd/coredump/core.xapp-sn-watcher.1000.a5ad6d2802b0487d81d67d23b1e5ae9c.2938.1601438509000000.lz4
       Message: Process 2938 (xapp-sn-watcher) of user 1000 dumped core.
                
                Stack trace of thread 2938:
                #0  0x00007f7bad887f50 g_str_hash (libglib-2.0.so.0)
                #1  0x00007f7bad886a01 n/a (libglib-2.0.so.0)
                #2  0x000055d1a4aa7a2d n/a (xapp-sn-watcher)
                #3  0x00007f7bada60799 n/a (libgio-2.0.so.0)
                #4  0x00007f7bada61216 n/a (libgio-2.0.so.0)
                #5  0x00007f7badac25b8 n/a (libgio-2.0.so.0)
                #6  0x00007f7bada60799 n/a (libgio-2.0.so.0)
                #7  0x00007f7bada61216 n/a (libgio-2.0.so.0)
                #8  0x00007f7badac1c79 n/a (libgio-2.0.so.0)
                #9  0x00007f7badac1dd2 n/a (libgio-2.0.so.0)
                #10 0x00007f7bada60799 n/a (libgio-2.0.so.0)
                #11 0x00007f7bada61216 n/a (libgio-2.0.so.0)
                #12 0x00007f7badab6cb1 n/a (libgio-2.0.so.0)
                #13 0x00007f7bada60799 n/a (libgio-2.0.so.0)
                #14 0x00007f7bada607d9 n/a (libgio-2.0.so.0)
                #15 0x00007f7bad898dd8 g_main_context_dispatch (libglib-2.0.so.0)
                #16 0x00007f7bad8991c8 n/a (libglib-2.0.so.0)
                #17 0x00007f7bad89925c g_main_context_iteration (libglib-2.0.so.0)
                #18 0x00007f7bada8ba2d g_application_run (libgio-2.0.so.0)
                #19 0x000055d1a4a9ffa6 main (xapp-sn-watcher)
                #20 0x00007f7bacd6209b __libc_start_main (libc.so.6)
                #21 0x000055d1a4aa000a _start (xapp-sn-watcher)
                
                Stack trace of thread 2945:
                #0  0x00007f7badac6a86 n/a (libgio-2.0.so.0)
                #1  0x00007f7bad898dd8 g_main_context_dispatch (libglib-2.0.so.0)
                #2  0x00007f7bad8991c8 n/a (libglib-2.0.so.0)
                #3  0x00007f7bad8994c2 g_main_loop_run (libglib-2.0.so.0)
                #4  0x00007f7badac5266 n/a (libgio-2.0.so.0)
                #5  0x00007f7bad8c1415 n/a (libglib-2.0.so.0)
                #6  0x00007f7bac6f0fa3 start_thread (libpthread.so.0)
                #7  0x00007f7bace374cf __clone (libc.so.6)
                
                Stack trace of thread 2944:
                #0  0x00007f7bace2c819 __poll (libc.so.6)
                #1  0x00007f7bad899136 n/a (libglib-2.0.so.0)
                #2  0x00007f7bad89925c g_main_context_iteration (libglib-2.0.so.0)
                #3  0x00007f7badbbdffd n/a (libdconfsettings.so)
                #4  0x00007f7bad8c1415 n/a (libglib-2.0.so.0)
                #5  0x00007f7bac6f0fa3 start_thread (libpthread.so.0)
                #6  0x00007f7bace374cf __clone (libc.so.6)
                
                Stack trace of thread 2943:
                #0  0x00007f7bace2c819 __poll (libc.so.6)
                #1  0x00007f7bad899136 n/a (libglib-2.0.so.0)
                #2  0x00007f7bad89925c g_main_context_iteration (libglib-2.0.so.0)
                #3  0x00007f7bad8992a1 n/a (libglib-2.0.so.0)
                #4  0x00007f7bad8c1415 n/a (libglib-2.0.so.0)
                #5  0x00007f7bac6f0fa3 start_thread (libpthread.so.0)
                #6  0x00007f7bace374cf __clone (libc.so.6)
===================================================================
 GDB Log                                                           
===================================================================
[New LWP 2938]
[New LWP 2945]
[New LWP 2944]
[New LWP 2943]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/libexec/xapps/sn-watcher/xapp-sn-watcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f7bad887f50 in g_str_hash () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f7ba88cca80 (LWP 2938))]

===================================================================
 GDB Backtrace                                                     
===================================================================
[New LWP 2938]
[New LWP 2945]
[New LWP 2944]
[New LWP 2943]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/libexec/xapps/sn-watcher/xapp-sn-watcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f7bad887f50 in g_str_hash () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f7ba88cca80 (LWP 2938))]
#0  0x00007f7bad887f50 in g_str_hash () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7bad886a01 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055d1a4aa7a2d in  ()
#3  0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7badac25b8 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007f7badac1c79 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007f7badac1dd2 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f7badab6cb1 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f7bada607d9 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f7bad898dd8 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f7bad8991c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f7bad89925c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7bada8ba2d in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#19 0x000055d1a4a9ffa6 in main ()

===================================================================
 GDB Backtrace (all threads)                                       
===================================================================
[New LWP 2938]
[New LWP 2945]
[New LWP 2944]
[New LWP 2943]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/libexec/xapps/sn-watcher/xapp-sn-watcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f7bad887f50 in g_str_hash () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f7ba88cca80 (LWP 2938))]

Thread 4 (Thread 0x7f7ba8889700 (LWP 2943)):
#0  0x00007f7bace2c819 in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f7bad899136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7bad89925c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7bad8992a1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7bad8c1415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7bac6f0fa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f7bace374cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f7ba3fff700 (LWP 2944)):
#0  0x00007f7bace2c819 in poll () at /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f7bad899136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7bad89925c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7badbbdffd in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007f7bad8c1415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7bac6f0fa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f7bace374cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f7ba3519700 (LWP 2945)):
#0  0x00007f7badac6a86 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#1  0x00007f7bad898dd8 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7bad8991c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7bad8994c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7badac5266 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7bad8c1415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7bac6f0fa3 in start_thread () at /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f7bace374cf in clone () at /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f7ba88cca80 (LWP 2938)):
#0  0x00007f7bad887f50 in g_str_hash () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7bad886a01 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055d1a4aa7a2d in  ()
#3  0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7badac25b8 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007f7badac1c79 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007f7badac1dd2 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f7badab6cb1 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f7bada607d9 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f7bad898dd8 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f7bad8991c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f7bad89925c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7bada8ba2d in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#19 0x000055d1a4a9ffa6 in main ()
#0  0x00007f7bad887f50 in g_str_hash () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7bad886a01 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055d1a4aa7a2d in  ()
#3  0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7badac25b8 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007f7badac1c79 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007f7badac1dd2 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007f7bada61216 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f7badab6cb1 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f7bada60799 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f7bada607d9 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f7bad898dd8 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f7bad8991c8 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f7bad89925c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7bada8ba2d in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#19 0x000055d1a4a9ffa6 in main ()

@mtwebster
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I can't reproduce on LMDE with obs 26. Had you rebooted since building obs and/or updating xapps?

@ghost
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ghost commented Sep 30, 2020

Multiple times, yes.

As far as I can tell, the crash only happens when system tray icon is disabled in obs settings.

@IgorKvasn
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IgorKvasn commented Dec 3, 2020

I've got the same problem since couple of days back. Not sure if it means something, but I am having this issue since I upgraded linux kernel from 5.4.0.54.57 to 5.4.0.56.59 and xserver from 2:1.20.8-ubuntu2.4 to 2:1.20.8-ubuntu2.6

The whole cinnamon session crashes, when I am using Wavebox (mail client) and switching between different email accounts. Wavebox is an electron app, so maybe it's Electron's issue?

btw. I tried to use workaround

gsettings set org.x.apps.statusicon sn-watcher-advertise-host false

but after reboot the whole cinnamon session becomes either unresponsive or simply reboots the computer, once Wavebox starts

===================================================================
 Info                                                              
===================================================================
           PID: 2731 (xapp-sn-watcher)
           UID: 1000 (kvasnicka)
           GID: 1000 (kvasnicka)
        Signal: 11 (SEGV)
     Timestamp: Tue 2020-12-01 08:26:50 CET (2 days ago)
  Command Line: /usr/libexec/xapps/sn-watcher/xapp-sn-watcher
    Executable: /usr/libexec/xapps/sn-watcher/xapp-sn-watcher
 Control Group: /user.slice/user-1000.slice/session-c2.scope
          Unit: session-c2.scope
         Slice: user-1000.slice
       Session: c2
     Owner UID: 1000 (kvasnicka)
       Boot ID: 3ddc3f607f064536a58be5bf2a706c45
    Machine ID: aaa642a1efb049fba8d6ca0c8d22ff0a
      Hostname: kvasnicka-ThinkPad
       Storage: /var/lib/systemd/coredump/core.xapp-sn-watcher.1000.3ddc3f607f064536a58be5bf2a706c45.2731.1606807610000000000000.lz4
       Message: Process 2731 (xapp-sn-watcher) of user 1000 dumped core.
                
                Stack trace of thread 2731:
                #0  0x00007f7e77de16e4 n/a (libglib-2.0.so.0 + 0x876e4)
                #1  0x00007f7e77de1b90 g_utf8_normalize (libglib-2.0.so.0 + 0x87b90)
                #2  0x000055974eb4d488 n/a (xapp-sn-watcher + 0x12488)
                #3  0x000055974eb4dcde n/a (xapp-sn-watcher + 0x12cde)
                #4  0x00007f7e77f97f49 n/a (libgio-2.0.so.0 + 0xb4f49)
                #5  0x00007f7e77f98b3d n/a (libgio-2.0.so.0 + 0xb5b3d)
                #6  0x00007f7e77ffe89d n/a (libgio-2.0.so.0 + 0x11b89d)
                #7  0x00007f7e77f97f49 n/a (libgio-2.0.so.0 + 0xb4f49)
                #8  0x00007f7e77f98b3d n/a (libgio-2.0.so.0 + 0xb5b3d)
                #9  0x00007f7e77ffdeb1 n/a (libgio-2.0.so.0 + 0x11aeb1)
                #10 0x00007f7e77ffe052 n/a (libgio-2.0.so.0 + 0x11b052)
                #11 0x00007f7e77f97f49 n/a (libgio-2.0.so.0 + 0xb4f49)
                #12 0x00007f7e77f98b3d n/a (libgio-2.0.so.0 + 0xb5b3d)
                #13 0x00007f7e77ff3314 n/a (libgio-2.0.so.0 + 0x110314)
                #14 0x00007f7e77f97f49 n/a (libgio-2.0.so.0 + 0xb4f49)
                #15 0x00007f7e77f97f8d n/a (libgio-2.0.so.0 + 0xb4f8d)
                #16 0x00007f7e77dabe8e g_main_context_dispatch (libglib-2.0.so.0 + 0x51e8e)
                #17 0x00007f7e77dac240 n/a (libglib-2.0.so.0 + 0x52240)
                #18 0x00007f7e77dac2e3 g_main_context_iteration (libglib-2.0.so.0 + 0x522e3)
                #19 0x00007f7e77fc5fd5 g_application_run (libgio-2.0.so.0 + 0xe2fd5)
                #20 0x000055974eb44e28 main (xapp-sn-watcher + 0x9e28)
                #21 0x00007f7e771750b3 __libc_start_main (libc.so.6 + 0x270b3)
                #22 0x000055974eb44e8e _start (xapp-sn-watcher + 0x9e8e)
                
                Stack trace of thread 2766:
                #0  0x00007f7e77263aff __GI___poll (libc.so.6 + 0x115aff)
                #1  0x00007f7e77dac1ae n/a (libglib-2.0.so.0 + 0x521ae)
                #2  0x00007f7e77dac2e3 g_main_context_iteration (libglib-2.0.so.0 + 0x522e3)
                #3  0x00007f7e77dac331 n/a (libglib-2.0.so.0 + 0x52331)
                #4  0x00007f7e77dd5931 n/a (libglib-2.0.so.0 + 0x7b931)
                #5  0x00007f7e76eff609 start_thread (libpthread.so.0 + 0x9609)
                #6  0x00007f7e77270293 __clone (libc.so.6 + 0x122293)
                
                Stack trace of thread 8056:
                #0  0x00007f7e7726989d syscall (libc.so.6 + 0x11b89d)
                #1  0x00007f7e77df95a6 g_cond_wait_until (libglib-2.0.so.0 + 0x9f5a6)
                #2  0x00007f7e77d7c561 n/a (libglib-2.0.so.0 + 0x22561)
                #3  0x00007f7e77dd632a n/a (libglib-2.0.so.0 + 0x7c32a)
                #4  0x00007f7e77dd5931 n/a (libglib-2.0.so.0 + 0x7b931)
                #5  0x00007f7e76eff609 start_thread (libpthread.so.0 + 0x9609)
                #6  0x00007f7e77270293 __clone (libc.so.6 + 0x122293)
                
                Stack trace of thread 2767:
                #0  0x00007f7e77263aff __GI___poll (libc.so.6 + 0x115aff)
                #1  0x00007f7e77dac1ae n/a (libglib-2.0.so.0 + 0x521ae)
                #2  0x00007f7e77dac2e3 g_main_context_iteration (libglib-2.0.so.0 + 0x522e3)
                #3  0x00007f7e7810599d n/a (libdconfsettings.so + 0xa99d)
                #4  0x00007f7e77dd5931 n/a (libglib-2.0.so.0 + 0x7b931)
                #5  0x00007f7e76eff609 start_thread (libpthread.so.0 + 0x9609)
                #6  0x00007f7e77270293 __clone (libc.so.6 + 0x122293)
                
                Stack trace of thread 2768:
                #0  0x00007f7e77263aff __GI___poll (libc.so.6 + 0x115aff)
                #1  0x00007f7e77dac1ae n/a (libglib-2.0.so.0 + 0x521ae)
                #2  0x00007f7e77dac533 g_main_loop_run (libglib-2.0.so.0 + 0x52533)
                #3  0x00007f7e78001eda n/a (libgio-2.0.so.0 + 0x11eeda)
                #4  0x00007f7e77dd5931 n/a (libglib-2.0.so.0 + 0x7b931)
                #5  0x00007f7e76eff609 start_thread (libpthread.so.0 + 0x9609)
                #6  0x00007f7e77270293 __clone (libc.so.6 + 0x122293)
===================================================================
 GDB Log                                                           
===================================================================
[New LWP 2731]
[New LWP 2766]
[New LWP 8056]
[New LWP 2767]
[New LWP 2768]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/libexec/xapps/sn-watcher/xapp-sn-watcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f7e77de16e4 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f7e73fd3a80 (LWP 2731))]

===================================================================
 GDB Backtrace                                                     
===================================================================
[New LWP 2731]
[New LWP 2766]
[New LWP 8056]
[New LWP 2767]
[New LWP 2768]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/libexec/xapps/sn-watcher/xapp-sn-watcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f7e77de16e4 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f7e73fd3a80 (LWP 2731))]
#0  0x00007f7e77de16e4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7e77de1b90 in g_utf8_normalize () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055974eb4d488 in  ()
#3  0x000055974eb4dcde in  ()
#4  0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7e77ffe89d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007f7e77ffdeb1 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f7e77ffe052 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f7e77ff3314 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f7e77f97f8d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007f7e77dabe8e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f7e77dac240 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7e77dac2e3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f7e77fc5fd5 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#20 0x000055974eb44e28 in main ()

===================================================================
 GDB Backtrace (all threads)                                       
===================================================================
[New LWP 2731]
[New LWP 2766]
[New LWP 8056]
[New LWP 2767]
[New LWP 2768]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/libexec/xapps/sn-watcher/xapp-sn-watcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f7e77de16e4 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f7e73fd3a80 (LWP 2731))]

Thread 5 (Thread 0x7f7e7278b700 (LWP 2768)):
#0  0x00007f7e77263aff in __GI___poll (fds=0x7f7e64016ee0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 2
        sc_cancel_oldtype = 0
#1  0x00007f7e77dac1ae in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e77dac533 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7e78001eda in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7e77dd5931 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7e76eff609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181063120640, 3414526038271287240, 140181079803918, 140181079803919, 140181079804064, 140181063117952, -3342179284075978808, -3342171713875386424}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f7e77270293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7e73775700 (LWP 2767)):
#0  0x00007f7e77263aff in __GI___poll (fds=0x55975077a050, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f7e77dac1ae in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e77dac2e3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7e7810599d in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007f7e77dd5931 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7e76eff609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181079807744, 3414526038271287240, 140725376040558, 140725376040559, 140725376040704, 140181079805056, -3342177000227119160, -3342171713875386424}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f7e77270293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7e71e6d700 (LWP 8056)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f7e77df95a6 in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e77d7c561 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7e77dd632a in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e77dd5931 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7e76eff609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181053560576, 3414526038271287240, 140725376039662, 140725376039663, 140725376039808, 140181053557888, -3342173834836222008, -3342171713875386424}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f7e77270293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7e73f76700 (LWP 2766)):
#0  0x00007f7e77263aff in __GI___poll (fds=0x5597507768b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f7e77dac1ae in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7e77dac2e3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7e77dac331 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7e77dd5931 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7e76eff609 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181088200448, 3414526038271287240, 140725376040174, 140725376040175, 140725376040320, 140181088197760, -3342178099201876024, -3342171713875386424}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#6  0x00007f7e77270293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f7e73fd3a80 (LWP 2731)):
#0  0x00007f7e77de16e4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7e77de1b90 in g_utf8_normalize () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055974eb4d488 in  ()
#3  0x000055974eb4dcde in  ()
#4  0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7e77ffe89d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007f7e77ffdeb1 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f7e77ffe052 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f7e77ff3314 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f7e77f97f8d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007f7e77dabe8e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f7e77dac240 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7e77dac2e3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f7e77fc5fd5 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#20 0x000055974eb44e28 in main ()
#0  0x00007f7e77de16e4 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7e77de1b90 in g_utf8_normalize () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x000055974eb4d488 in  ()
#3  0x000055974eb4dcde in  ()
#4  0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f7e77ffe89d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007f7e77ffdeb1 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#10 0x00007f7e77ffe052 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#11 0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f7e77f98b3d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#13 0x00007f7e77ff3314 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007f7e77f97f49 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007f7e77f97f8d in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007f7e77dabe8e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f7e77dac240 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f7e77dac2e3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f7e77fc5fd5 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#20 0x000055974eb44e28 in main ()

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gsettings set org.x.apps.statusicon sn-watcher-advertise-host false

That does nothing! The only thing that "fixed" the problem was to completely prevent the watcher from starting: by removing it from autostart and also opening /usr/lib/xapps/sn-watcher/ , renaming xapp-sn-watcher to xapp-sn-watcher.bak, so that it can never start and also deleting /etc/xdg/autostart/xapp-sn-watcher.desktop. And now the programs in the tray behave properly.

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