Getting core dumps, I think its only EOS, doesn't happen on other arch based distros

kraker · August 10, 2023, 3:45pm

So I checked another arch based distro ran it for a while and got no core dumps but its happening here in EOS.
The core dumps aren’t just caused due to picom. Other processes are returning core dumps too but I couldn’t post them here as I reinistalled just today and picom was the only one that gave core dump till now.
Output of coredumpctl :

➜  ~ coredumpctl
TIME                         PID  UID  GID SIG     COREFILE EXE              SIZE
Thu 2023-08-10 19:58:46 PKT 1136 1000 1001 SIGABRT present  /usr/bin/picom 190.2K

Out of the core dump itself taken by coredumpctl info 1136 :

➜  ~ coredumpctl info 1136
           PID: 1136 (picom)
           UID: 1000 (v3n0m)
           GID: 1001 (v3n0m)
        Signal: 6 (ABRT)
     Timestamp: Thu 2023-08-10 19:58:46 PKT (46min ago)
  Command Line: picom
    Executable: /usr/bin/picom
 Control Group: /user.slice/user-1000.slice/session-1.scope
          Unit: session-1.scope
         Slice: user-1000.slice
       Session: 1
     Owner UID: 1000 (v3n0m)
       Boot ID: ed30f482309f41beb47bcc345a72e797
    Machine ID: acd4ce7187d74bcfbf1b1be882e4d655
      Hostname: archlinux
       Storage: /var/lib/systemd/coredump/core.picom.1000.ed30f482309f41beb47bcc345a72e797.1136.1691679526000000.zst (present)
  Size on Disk: 190.2K
       Message: Process 1136 (picom) of user 1000 dumped core.

                Stack trace of thread 1136:
                #0  0x00007f5ccf88e83c n/a (libc.so.6 + 0x8e83c)
                #1  0x00007f5ccf83e668 raise (libc.so.6 + 0x3e668)
                #2  0x00007f5ccf8264b8 abort (libc.so.6 + 0x264b8)
                #3  0x000055e599171035 n/a (picom + 0xb035)
                #4  0x000055e59917e691 n/a (picom + 0x18691)
                #5  0x000055e59919ce5c n/a (picom + 0x36e5c)
                #6  0x000055e599177faa n/a (picom + 0x11faa)
                #7  0x000055e5991ab71f n/a (picom + 0x4571f)
                #8  0x000055e599173b6c n/a (picom + 0xdb6c)
                #9  0x00007f5ccff410cb ev_invoke_pending (libev.so.4 + 0x50cb)
                #10 0x00007f5ccff44d10 ev_run (libev.so.4 + 0x8d10)
                #11 0x000055e59917146e n/a (picom + 0xb46e)
                #12 0x00007f5ccf827cd0 n/a (libc.so.6 + 0x27cd0)
                #13 0x00007f5ccf827d8a __libc_start_main (libc.so.6 + 0x27d8a)
                #14 0x000055e599172845 n/a (picom + 0xc845)
                ELF object binary architecture: AMD x86-64

anthony93 · August 10, 2023, 4:06pm

Check the journal entries to see what’s causing the coredump. Is it a segfault?

dalto · August 10, 2023, 4:07pm

It is picom. Is your other distro using picom?

kraker · August 10, 2023, 4:24pm

Yeah, tested it with picom. It’s not just picom, other processes are doing it as well like xdg-desktop-portal, some bluetooth stuff, gcr prompter.
That’s the reason I reinstalled.

anthony93 · August 10, 2023, 4:29pm

That seems rather ominous. Have you performed any memtest lately?

kraker · August 10, 2023, 4:31pm

Yeah, I did and RAM was fine.

kraker · August 14, 2023, 2:41pm

Tested arch linux, getting core dumps there too.

anthony93 · August 14, 2023, 2:44pm

I recommend posting some journal entries, which may contain clues to the cause(s) of these coredumps (Segfaults, etc.).

kraker · August 14, 2023, 2:48pm

           PID: 1027 (xdg-desktop-por)
           UID: 1000 (v3n0m)
           GID: 1000 (v3n0m)
        Signal: 11 (SEGV)
     Timestamp: Mon 2023-08-14 00:56:55 PKT (18h ago)
  Command Line: /usr/lib/xdg-desktop-portal
    Executable: /usr/lib/xdg-desktop-portal
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/xdg-desktop-portal.service
          Unit: user@1000.service
     User Unit: xdg-desktop-portal.service
         Slice: user-1000.slice
     Owner UID: 1000 (v3n0m)
       Boot ID: 75a2e867418b45288908b6177102fd0b
    Machine ID: 17e768e0da4d4d6caa0b95648ab757e6
      Hostname: archlinux
       Storage: /var/lib/systemd/coredump/core.xdg-desktop-por.1000.75a2e867418b45288908b6177102fd0b.1027.1691956615000000.zst (present)
  Size on Disk: 844.1K
       Message: Process 1027 (xdg-desktop-por) of user 1000 dumped core.
                
                Stack trace of thread 55030:
                #0  0x00007fa9c475fc2b g_mutex_lock (libglib-2.0.so.0 + 0xafc2b)
                #1  0x000055ab771a1d81 n/a (xdg-desktop-portal + 0x66d81)
                #2  0x00007fa9c4586838 n/a (libgio-2.0.so.0 + 0xac838)
                #3  0x00007fa9c473fd53 n/a (libglib-2.0.so.0 + 0x8fd53)
                #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 1027:
                #0  0x00007fa9c4060150 n/a (libc.so.6 + 0x60150)
                #1  0x00007fa9c4081125 n/a (libc.so.6 + 0x81125)
                #2  0x00007fa9c4761593 g_vasprintf (libglib-2.0.so.0 + 0xb1593)
                #3  0x00007fa9c472d802 g_strdup_vprintf (libglib-2.0.so.0 + 0x7d802)
                #4  0x00007fa9c472d8ce g_strdup_printf (libglib-2.0.so.0 + 0x7d8ce)
                #5  0x00007fa9c4585d72 n/a (libgio-2.0.so.0 + 0xabd72)
                #6  0x00007fa9c449a8b4 g_object_unref (libgobject-2.0.so.0 + 0x228b4)
                #7  0x00007fa9c47046fd n/a (libglib-2.0.so.0 + 0x546fd)
                #8  0x00007fa9c4708f20 n/a (libglib-2.0.so.0 + 0x58f20)
                #9  0x00007fa9c470ab39 g_main_context_dispatch (libglib-2.0.so.0 + 0x5ab39)
                #10 0x00007fa9c4767cc9 n/a (libglib-2.0.so.0 + 0xb7cc9)
                #11 0x00007fa9c4709fef g_main_loop_run (libglib-2.0.so.0 + 0x59fef)
                #12 0x000055ab7715f601 n/a (xdg-desktop-portal + 0x24601)
                #13 0x00007fa9c4027cd0 n/a (libc.so.6 + 0x27cd0)
                #14 0x00007fa9c4027d8a __libc_start_main (libc.so.6 + 0x27d8a)
                #15 0x000055ab7715fa85 n/a (xdg-desktop-portal + 0x24a85)
                
                Stack trace of thread 1036:
                #0  0x00007fa9c41039df __poll (libc.so.6 + 0x1039df)
                #1  0x00007fa9c4767c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                #2  0x00007fa9c47080e2 g_main_context_iteration (libglib-2.0.so.0 + 0x580e2)
                #3  0x00007fa9c4708132 n/a (libglib-2.0.so.0 + 0x58132)
                #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 1091:
                #0  0x00007fa9c41039df __poll (libc.so.6 + 0x1039df)
                #1  0x00007fa9c4767c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                #2  0x00007fa9c47080e2 g_main_context_iteration (libglib-2.0.so.0 + 0x580e2)
                #3  0x00007fa9c0ea5fde n/a (libdconfsettings.so + 0x5fde)
                #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 1092:
                #0  0x00007fa9c4111666 epoll_wait (libc.so.6 + 0x111666)
                #1  0x00007fa9c0e69c59 n/a (libspa-support.so + 0x15c59)
                #2  0x00007fa9c0e5c4fd n/a (libspa-support.so + 0x84fd)
                #3  0x00007fa9c43b0b12 n/a (libpipewire-0.3.so.0 + 0x45b12)
                #4  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #5  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 1039:
                #0  0x00007fa9c410f1ad syscall (libc.so.6 + 0x10f1ad)
                #1  0x00007fa9c475fca7 g_cond_wait (libglib-2.0.so.0 + 0xafca7)
                #2  0x00007fa9c46d5144 n/a (libglib-2.0.so.0 + 0x25144)
                #3  0x00007fa9c473f2fe n/a (libglib-2.0.so.0 + 0x8f2fe)
                #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 1042:
                #0  0x00007fa9c41039df __poll (libc.so.6 + 0x1039df)
                #1  0x00007fa9c4767c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                #2  0x00007fa9c4709fef g_main_loop_run (libglib-2.0.so.0 + 0x59fef)
                #3  0x00007fa9c45ea28c n/a (libgio-2.0.so.0 + 0x11028c)
                #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 55082:
                #0  0x00007fa9c410f1ad syscall (libc.so.6 + 0x10f1ad)
                #1  0x00007fa9c4760533 g_cond_wait_until (libglib-2.0.so.0 + 0xb0533)
                #2  0x00007fa9c46d5115 n/a (libglib-2.0.so.0 + 0x25115)
                #3  0x00007fa9c473fdab n/a (libglib-2.0.so.0 + 0x8fdab)
                #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                ELF object binary architecture: AMD x86-64

Here’s the latest core dump journalctl entry taken from coredumpctl ina arch linux
And here’s another one

           PID: 957 (xdg-desktop-por)
           UID: 1000 (v3n0m)
           GID: 1000 (v3n0m)
        Signal: 11 (SEGV)
     Timestamp: Mon 2023-08-14 01:01:36 PKT (18h ago)
  Command Line: /usr/lib/xdg-desktop-portal
    Executable: /usr/lib/xdg-desktop-portal
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/xdg-desktop-portal.service
          Unit: user@1000.service
     User Unit: xdg-desktop-portal.service
         Slice: user-1000.slice
     Owner UID: 1000 (v3n0m)
       Boot ID: 6c8af668553540aea05a18922a33b3c8
    Machine ID: 17e768e0da4d4d6caa0b95648ab757e6
      Hostname: archlinux
       Storage: /var/lib/systemd/coredump/core.xdg-desktop-por.1000.6c8af668553540aea05a18922a33b3c8.957.1691956896000000.zst (missing)
       Message: Process 957 (xdg-desktop-por) of user 1000 dumped core.
                
                Stack trace of thread 1145:
                #0  0x00007f64e19a9c2b g_mutex_lock (libglib-2.0.so.0 + 0xafc2b)
                #1  0x000055bf276ebd81 n/a (xdg-desktop-portal + 0x66d81)
                #2  0x00007f64e17d0838 n/a (libgio-2.0.so.0 + 0xac838)
                #3  0x00007f64e1989d53 n/a (libglib-2.0.so.0 + 0x8fd53)
                #4  0x00007f64e1986d75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 957:
                #0  0x00007f64e1303fdc read (libc.so.6 + 0x103fdc)
                #1  0x00007f64e19a9610 n/a (libglib-2.0.so.0 + 0xaf610)
                #2  0x00007f64e1955144 g_main_context_check (libglib-2.0.so.0 + 0x5b144)
                #3  0x00007f64e19b1b28 n/a (libglib-2.0.so.0 + 0xb7b28)
                #4  0x00007f64e1953fef g_main_loop_run (libglib-2.0.so.0 + 0x59fef)
                #5  0x000055bf276a9601 n/a (xdg-desktop-portal + 0x24601)
                #6  0x00007f64e1227cd0 n/a (libc.so.6 + 0x27cd0)
                #7  0x00007f64e1227d8a __libc_start_main (libc.so.6 + 0x27d8a)
                #8  0x000055bf276a9a85 n/a (xdg-desktop-portal + 0x24a85)
                
                Stack trace of thread 961:
                #0  0x00007f64e13039df __poll (libc.so.6 + 0x1039df)
                #1  0x00007f64e19b1c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                #2  0x00007f64e19520e2 g_main_context_iteration (libglib-2.0.so.0 + 0x580e2)
                #3  0x00007f64e1952132 n/a (libglib-2.0.so.0 + 0x58132)
                #4  0x00007f64e1986d75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 962:
                #0  0x00007f64e130f1ad syscall (libc.so.6 + 0x10f1ad)
                #1  0x00007f64e19a9ca7 g_cond_wait (libglib-2.0.so.0 + 0xafca7)
                #2  0x00007f64e191f144 n/a (libglib-2.0.so.0 + 0x25144)
                #3  0x00007f64e19892fe n/a (libglib-2.0.so.0 + 0x8f2fe)
                #4  0x00007f64e1986d75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 963:
                #0  0x00007f64e13039df __poll (libc.so.6 + 0x1039df)
                #1  0x00007f64e19b1c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                #2  0x00007f64e1953fef g_main_loop_run (libglib-2.0.so.0 + 0x59fef)
                #3  0x00007f64e183428c n/a (libgio-2.0.so.0 + 0x11028c)
                #4  0x00007f64e1986d75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 987:
                #0  0x00007f64e13039df __poll (libc.so.6 + 0x1039df)
                #1  0x00007f64e19b1c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                #2  0x00007f64e19520e2 g_main_context_iteration (libglib-2.0.so.0 + 0x580e2)
                #3  0x00007f64e0d34fde n/a (libdconfsettings.so + 0x5fde)
                #4  0x00007f64e1986d75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 988:
                #0  0x00007f64e1311666 epoll_wait (libc.so.6 + 0x111666)
                #1  0x00007f64e00a7c59 n/a (libspa-support.so + 0x15c59)
                #2  0x00007f64e009a4fd n/a (libspa-support.so + 0x84fd)
                #3  0x00007f64e15fab12 n/a (libpipewire-0.3.so.0 + 0x45b12)
                #4  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #5  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                
                Stack trace of thread 1168:
                #0  0x00007f64e130f1ad syscall (libc.so.6 + 0x10f1ad)
                #1  0x00007f64e19aa533 g_cond_wait_until (libglib-2.0.so.0 + 0xb0533)
                #2  0x00007f64e191f115 n/a (libglib-2.0.so.0 + 0x25115)
                #3  0x00007f64e1989dab n/a (libglib-2.0.so.0 + 0x8fdab)
                #4  0x00007f64e1986d75 n/a (libglib-2.0.so.0 + 0x8cd75)
                #5  0x00007f64e128c9eb n/a (libc.so.6 + 0x8c9eb)
                #6  0x00007f64e131123c n/a (libc.so.6 + 0x11123c)
                ELF object binary architecture: AMD x86-64

anthony93 · August 14, 2023, 3:00pm

Signal 11 means segfault. And it’s a different service this time. Last time it was picom. Are the services affected consistent, or do they seem random? If they are consistent (e.g. it’s always the same set of services that are affected), then it might be worth looking into what all those processes have in common (e.g: do they use the same library, etc.). If they seem random, then there might be a deeper issue at play (hardware? kernel? graphics driver?).

What else have you tried other than tested it on Arch? Have you tested it on the LTS kernel? Have you tested the machine on a non-Arch-based distro?

P/S: Maybe also post the output of journalctl --since "2023-08-14 01:00" just to see what else is inside the journals around the time the segfault occurred.

kraker · August 14, 2023, 3:17pm

yeah kernel’s not a problem, i have checked on lts kernel as well.
Here’s the output of :
journalctl --since “2023-08-14 00:56”
I used different time stamps, earlier than what u said as timestamps after the core dump are not useful

56:53 archlinux rtkit-daemon[881]: Failed to look up client: No such file or directory
Aug 14 00:56:53 archlinux rtkit-daemon[881]: Failed to look up client: No such file or directory
Aug 14 00:56:54 archlinux rtkit-daemon[881]: Failed to look up client: No such file or directory
Aug 14 00:56:54 archlinux rtkit-daemon[881]: Failed to look up client: No such file or directory
Aug 14 00:56:55 archlinux rtkit-daemon[881]: Failed to look up client: No such file or directory
Aug 14 00:56:55 archlinux xdg-desktop-por[1027]: g_object_ref: assertion '!object_already_finalized' failed
Aug 14 00:56:55 archlinux kernel: pool-/usr/lib/x[55030]: segfault at 40 ip 00007fa9c475fc2b sp 00007fa9aaffccf8 error 6 in libglib-2.0.so.0.7600.4[7fa9c46ce000+9d000] likely on CPU 3 (core 3, socket 0)
Aug 14 00:56:55 archlinux kernel: Code: 0b 75 c4 44 89 2b eb bf 0f 1f 80 00 00 00 00 48 83 c4 08 5b 5d 41 5c 41 5d c3 0f 1f 44 00 00 f3 0f 1e fa 31 c0 ba 01 00 00 00 <f0> 0f b1 17 75 01 c3 e9 79 ff ff ff 66 0f 1f 84 00 00 00 00 00 f3
Aug 14 00:56:55 archlinux systemd[1]: Created slice Slice /system/systemd-coredump.
Aug 14 00:56:55 archlinux systemd[1]: Started Process Core Dump (PID 55083/UID 0).
Aug 14 00:56:55 archlinux systemd-coredump[55089]: [🡕] Process 1027 (xdg-desktop-por) of user 1000 dumped core.

                                                   Stack trace of thread 55030:
                                                   #0  0x00007fa9c475fc2b g_mutex_lock (libglib-2.0.so.0 + 0xafc2b)
                                                   #1  0x000055ab771a1d81 n/a (xdg-desktop-portal + 0x66d81)
                                                   #2  0x00007fa9c4586838 n/a (libgio-2.0.so.0 + 0xac838)
                                                   #3  0x00007fa9c473fd53 n/a (libglib-2.0.so.0 + 0x8fd53)
                                                   #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                                                   #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)

                                                   Stack trace of thread 1027:
                                                   #0  0x00007fa9c4060150 n/a (libc.so.6 + 0x60150)
                                                   #1  0x00007fa9c4081125 n/a (libc.so.6 + 0x81125)
                                                   #2  0x00007fa9c4761593 g_vasprintf (libglib-2.0.so.0 + 0xb1593)
                                                   #3  0x00007fa9c472d802 g_strdup_vprintf (libglib-2.0.so.0 + 0x7d802)
                                                   #4  0x00007fa9c472d8ce g_strdup_printf (libglib-2.0.so.0 + 0x7d8ce)
                                                   #5  0x00007fa9c4585d72 n/a (libgio-2.0.so.0 + 0xabd72)
                                                   #6  0x00007fa9c449a8b4 g_object_unref (libgobject-2.0.so.0 + 0x228b4)
                                                   #7  0x00007fa9c47046fd n/a (libglib-2.0.so.0 + 0x546fd)
                                                   #8  0x00007fa9c4708f20 n/a (libglib-2.0.so.0 + 0x58f20)
                                                   #9  0x00007fa9c470ab39 g_main_context_dispatch (libglib-2.0.so.0 + 0x5ab39)
                                                   #10 0x00007fa9c4767cc9 n/a (libglib-2.0.so.0 + 0xb7cc9)
                                                   #11 0x00007fa9c4709fef g_main_loop_run (libglib-2.0.so.0 + 0x59fef)
                                                   #12 0x000055ab7715f601 n/a (xdg-desktop-portal + 0x24601)
                                                   #13 0x00007fa9c4027cd0 n/a (libc.so.6 + 0x27cd0)
                                                   #14 0x00007fa9c4027d8a __libc_start_main (libc.so.6 + 0x27d8a)
                                                   #15 0x000055ab7715fa85 n/a (xdg-desktop-portal + 0x24a85)

                                                   Stack trace of thread 1036:
                                                   #0  0x00007fa9c41039df __poll (libc.so.6 + 0x1039df)
                                                   #1  0x00007fa9c4767c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                                                   #2  0x00007fa9c47080e2 g_main_context_iteration (libglib-2.0.so.0 + 0x580e2)
                                                   #3  0x00007fa9c4708132 n/a (libglib-2.0.so.0 + 0x58132)
                                                   #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                                                   #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)

                                                   Stack trace of thread 1091:
                                                   #0  0x00007fa9c41039df __poll (libc.so.6 + 0x1039df)
                                                   #1  0x00007fa9c4767c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                                                   #2  0x00007fa9c47080e2 g_main_context_iteration (libglib-2.0.so.0 + 0x580e2)
                                                   #3  0x00007fa9c0ea5fde n/a (libdconfsettings.so + 0x5fde)
                                                   #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                                                   #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)

                                                   Stack trace of thread 1092:
                                                   #0  0x00007fa9c4111666 epoll_wait (libc.so.6 + 0x111666)
                                                   #1  0x00007fa9c0e69c59 n/a (libspa-support.so + 0x15c59)
                                                   #2  0x00007fa9c0e5c4fd n/a (libspa-support.so + 0x84fd)
                                                   #3  0x00007fa9c43b0b12 n/a (libpipewire-0.3.so.0 + 0x45b12)
                                                   #4  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #5  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)

                                                   Stack trace of thread 1039:
                                                   #0  0x00007fa9c410f1ad syscall (libc.so.6 + 0x10f1ad)
                                                   #1  0x00007fa9c475fca7 g_cond_wait (libglib-2.0.so.0 + 0xafca7)
                                                   #2  0x00007fa9c46d5144 n/a (libglib-2.0.so.0 + 0x25144)
                                                   #3  0x00007fa9c473f2fe n/a (libglib-2.0.so.0 + 0x8f2fe)
                                                   #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                                                   #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)

                                                   Stack trace of thread 1042:
                                                   #0  0x00007fa9c41039df __poll (libc.so.6 + 0x1039df)
                                                   #1  0x00007fa9c4767c2f n/a (libglib-2.0.so.0 + 0xb7c2f)
                                                   #2  0x00007fa9c4709fef g_main_loop_run (libglib-2.0.so.0 + 0x59fef)
                                                   #3  0x00007fa9c45ea28c n/a (libgio-2.0.so.0 + 0x11028c)
                                                   #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                                                   #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)

                                                   Stack trace of thread 55082:
                                                   #0  0x00007fa9c410f1ad syscall (libc.so.6 + 0x10f1ad)
                                                   #1  0x00007fa9c4760533 g_cond_wait_until (libglib-2.0.so.0 + 0xb0533)
                                                   #2  0x00007fa9c46d5115 n/a (libglib-2.0.so.0 + 0x25115)
                                                   #3  0x00007fa9c473fdab n/a (libglib-2.0.so.0 + 0x8fdab)
                                                   #4  0x00007fa9c473cd75 n/a (libglib-2.0.so.0 + 0x8cd75)
                                                   #5  0x00007fa9c408c9eb n/a (libc.so.6 + 0x8c9eb)
                                                   #6  0x00007fa9c411123c n/a (libc.so.6 + 0x11123c)
                                                   ELF object binary architecture: AMD x86-64
Aug 14 00:56:55 archlinux systemd[785]: xdg-desktop-portal.service: Main process exited, code=dumped, status=11/SEGV
Aug 14 00:56:55 archlinux systemd[1]: systemd-coredump@0-55083-0.service: Deactivated successfully.
Aug 14 00:56:55 archlinux dbus-daemon[802]: [session uid=1000 pid=802] Activating via systemd: service name='org.freedesktop.portal.Desktop' unit='xdg-desktop-portal.service' requested by ':1.4437' (uid=1000 pid=55084 comm="amixer -D default get Master")
Aug 14 00:56:55 archlinux systemd[785]: xdg-desktop-portal.service: Failed with result 'core-dump'.
Aug 14 00:56:55 archlinux systemd[785]: xdg-desktop-portal.service: Consumed 20.702s CPU time.
Aug 14 00:56:55 archlinux systemd[785]: Starting Portal service...
Aug 14 00:56:55 archlinux rtkit-daemon[881]: Supervising 11 threads of 8 processes of 1 users.
Aug 14 00:56:55 archlinux rtkit-daemon[881]: Supervising 11 threads of 8 processes of 1 users.
Aug 14 00:56:55 archlinux rtkit-daemon[881]: Supervising 11 threads of 8 processes of 1 users.
Aug 14 00:56:55 archlinux dbus-daemon[802]: [session uid=1000 pid=802] Successfully activated service 'org.freedesktop.portal.Desktop'
Aug 14 00:56:55 archlinux systemd[785]: Started Portal service.
Aug 14 00:56:56 archlinux rtkit-daemon[881]: Failed to look up client: No such file or directory

kraker · August 14, 2023, 3:20pm

This line

Aug 14 00:56:55 archlinux xdg-desktop-por[1027]: g_object_ref: assertion '!object_already_finalized' failed

Appears to be in common in all three just before or at the moment of core dump.

anthony93 · August 14, 2023, 3:24pm

Only xdg-desktop-portal and picom are affected?

kraker · August 14, 2023, 3:30pm

On eos i got these dumps from 3-4 different processes not just picom and xdg-desktop-portal
But here so far it’s only xdg-desktop-portal which is dumping core. Maybe if I let it drive for some days from now, new entries might be added.
But I tried to replicate the same packages on both systems so I could test. Except the packages from eos repo, all other packages are the same on arch which i had on eos.

anthony93 · August 14, 2023, 3:34pm

Run a different distro on the machine. See if the problem replicates. Also, check if your microcode is loaded during boot.

dalto · August 14, 2023, 3:58pm

Try removing picom. There have been lots of picom-related issues reported over the last couple of months here.

kraker · August 14, 2023, 6:13pm

But why core dumps are occurring due to other processes and there aren’t any mentions of picom in those other coredumps?

dalto · August 14, 2023, 6:52pm

There is now way to answer that question. However, in cases where there is a lack of viable information, we can try things one at a time and try to isolate the problem.

If it is doesn’t help, we know that isn’t the cause. If it does help, we know the issue is with picom and we can dig deeper into why.