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#1 2026-01-31 13:17:15

n-buck
Member
Registered: 2019-05-04
Posts: 3

Steam dumps core on first startup

I am having some trouble starting steam.

Since January 22 I am having some issues with steam (quite confident about that date, since steam is in my autostart and before it only appeared sporadically in the logs).
Steam did not start at all anymore, with the following entry in the journalctl:

Jan 31 12:20:32 nico-arch systemd-coredump[21382]: [?] Process 21187 (steamwebhelper) of user 1000 dumped core.
                                                   
                                                   Stack trace of thread 21332:
                                                   #0  0x0000000000000000 n/a (n/a + 0x0)
                                                   ELF object binary architecture: AMD x86-64

I thought, it may be to mis-configured grafiks, since I am not expirinecing other issues in the system.
I am having an Radeon RX 9070 XT and the ryzen integrated graphics chip.
After disabling the integrated grafics-chip steam fails on first startup, but stating it again works, also the performance is as expected.

The new core-dump seems to originate at linux-gate.so1, so I assume it is a kernel-issue (not sure if I understood the quick read about it that I had correctly)?

Jan 31 13:57:04 nico-arch systemd-coredump[7153]: [?] Process 6993 (steam) of user 1000 dumped core.
                                                  
                                                  Stack trace of thread 7111:
                                                  #0  0x00000000f7ecc579 __kernel_vsyscall (linux-gate.so.1 + 0x579)
                                                  #1  0x00000000f7c2de4f n/a (libc.so.6 + 0x95e4f)
                                                  #2  0x00000000f7bd1807 raise (libc.so.6 + 0x39807)
                                                  #3  0x00000000f7bb81fa abort (libc.so.6 + 0x201fa)
                                                  #4  0x00000000f0d7606b n/a (libdbus-1.so.3 + 0xa06b)
                                                  #5  0x00000000f0da1762 _dbus_warn_check_failed (libdbus-1.so.3 + 0x35762)
                                                  #6  0x00000000f0da179d _dbus_warn_return_if_fail (libdbus-1.so.3 + 0x3579d)
                                                  #7  0x00000000f0d8e5de dbus_message_new_method_call (libdbus-1.so.3 + 0x225de)
                                                  #8  0x00000000f36ff326 n/a (libSDL3.so.0 + 0x133326)
                                                  #9  0x00000000f37c4f0e n/a (libSDL3.so.0 + 0x1f8f0e)
                                                  #10 0x00000000f37c54bd n/a (libSDL3.so.0 + 0x1f94bd)
                                                  #11 0x00000000d751e7d7 n/a (steamclient.so + 0x16d97d7)
                                                  #12 0x00000000d751e5e5 n/a (steamclient.so + 0x16d95e5)
                                                  #13 0x00000000d751df6f n/a (steamclient.so + 0x16d8f6f)
                                                  #14 0x00000000d751fc78 n/a (steamclient.so + 0x16dac78)
                                                  #15 0x00000000d7524b4a n/a (steamclient.so + 0x16dfb4a)
                                                  #16 0x00000000d74cdf67 n/a (steamclient.so + 0x1688f67)
                                                  #17 0x00000000d74cd34b n/a (steamclient.so + 0x168834b)
                                                  #18 0x00000000d74c99c2 n/a (steamclient.so + 0x16849c2)
                                                  #19 0x00000000d76f3472 n/a (steamclient.so + 0x18ae472)
                                                  #20 0x00000000d76f5ab5 n/a (steamclient.so + 0x18b0ab5)
                                                  #21 0x00000000d76f62f1 n/a (steamclient.so + 0x18b12f1)
                                                  #22 0x00000000f3aa659e _ZN16SteamThreadTools7CThread22ThreadExceptionWrapperEPv (libtier0_s.so + 0x3359e)
                                                  #23 0x00000000f3aa3d1e n/a (libtier0_s.so + 0x30d1e)
                                                  #24 0x00000000f3aa45e0 CatchAndWriteMiniDumpExForVoidPtrFn (libtier0_s.so + 0x315e0)
                                                  #25 0x00000000f3aa4628 CatchAndWriteMiniDumpForVoidPtrFn (libtier0_s.so + 0x31628)
                                                  #26 0x00000000f3aa93f2 _ZN16SteamThreadTools7CThread10ThreadProcEPv (libtier0_s.so + 0x363f2)
                                                  #27 0x00000000f7c2ba8b n/a (libc.so.6 + 0x93a8b)
                                                  #28 0x00000000f7cc7588 n/a (libc.so.6 + 0x12f588)
                                                  
                                                  Stack trace of thread 6996:
                                                  #0  0x00000000f7c34a9b n/a (libc.so.6 + 0x9ca9b)
                                                  #1  0x00000000f7c27a40 n/a (libc.so.6 + 0x8fa40)
                                                  #2  0x00000000f7c281f8 n/a (libc.so.6 + 0x901f8)
                                                  #3  0x00000000f7c2b388 __pthread_cond_timedwait64 (libc.so.6 + 0x93388)
                                                  #4  0x00000000f7c2b463 pthread_cond_timedwait (libc.so.6 + 0x93463)
                                                  #5  0x0000000056870015 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2df015)
                                                  #6  0x00000000568497a7 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2b87a7)
                                                  #7  0x0000000056849a83 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2b8a83)
                                                  #8  0x000000005686fd2e n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2ded2e)
                                                  #9  0x000000005686cad8 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2dbad8)
                                                  #10 0x000000005686d41f n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2dc41f)
                                                  #11 0x0000000056873b14 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2e2b14)
                                                  #12 0x00000000f7c2ba8b n/a (libc.so.6 + 0x93a8b)
                                                  #13 0x00000000f7cc7588 n/a (libc.so.6 + 0x12f588)
                                                  
                                                  Stack trace of thread 6993:
                                                  #0  0x00000000f7c34a9b n/a (libc.so.6 + 0x9ca9b)
                                                  #1  0x00000000f7c27a40 n/a (libc.so.6 + 0x8fa40)
                                                  #2  0x00000000f7c281f8 n/a (libc.so.6 + 0x901f8)
                                                  #3  0x00000000f7c2b388 __pthread_cond_timedwait64 (libc.so.6 + 0x93388)
                                                  #4  0x00000000f7c2b463 pthread_cond_timedwait (libc.so.6 + 0x93463)
                                                  #5  0x00000000f3aa84fc _ZN16SteamThreadTools17CThreadSyncObject4WaitEj (libtier0_s.so + 0x354fc)
                                                  #6  0x00000000d7737a2c n/a (steamclient.so + 0x18f2a2c)
                                                  #7  0x00000000d7710775 n/a (steamclient.so + 0x18cb775)
                                                  #8  0x00000000d7710d02 n/a (steamclient.so + 0x18cbd02)
                                                  #9  0x00000000d74bd661 n/a (steamclient.so + 0x1678661)
                                                  #10 0x00000000d74beed9 n/a (steamclient.so + 0x1679ed9)
                                                  #11 0x00000000f4823a6b n/a (steamui.so + 0xd52a6b)
                                                  #12 0x00000000f4823c7a n/a (steamui.so + 0xd52c7a)
                                                  #13 0x00000000f516fb49 n/a (steamui.so + 0x169eb49)
                                                  #14 0x00000000f51624fe n/a (steamui.so + 0x16914fe)
                                                  #15 0x00000000f509017c n/a (steamui.so + 0x15bf17c)
                                                  #16 0x000000005682faad n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x29eaad)
                                                  #17 0x0000000056830d20 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x29fd20)
                                                  #18 0x0000000056831c55 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x2a0c55)
                                                  #19 0x00000000f7bba535 n/a (libc.so.6 + 0x22535)
                                                  #20 0x00000000f7bba60e __libc_start_main (libc.so.6 + 0x2260e)
                                                  #21 0x0000000056816031 n/a (/home/nico/.local/share/Steam/ubuntu12_32/steam + 0x285031)
                                                  ELF object binary architecture: Intel 80386

Any ideas what could be the issue?

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#2 2026-01-31 17:25:40

jasper_e
Member
From: Area 51
Registered: 2026-01-31
Posts: 6

Re: Steam dumps core on first startup

you are quite a researcher, i must say
but first off back up all ur game saves

 __kernel_vsyscall (linux-gate.so.1) does not mean kernel bug 

see this ->

#4  0x00000000f0d7606b n/a (libdbus-1.so.3 + 0xa06b)
#5  0x00000000f0da1762 _dbus_warn_check_failed (libdbus-1.so.3 + 0x35762)
#6  0x00000000f0da179d _dbus_warn_return_if_fail (libdbus-1.so.3 + 0x3579d)
#7 0x00000000f0d8e5de dbus_message_new_method_call (libdbus-1.so.3 + 0x225de) 

this means error dbus assertion or put into simple words - steam crashed itself intentionaly

still this aint much to work on but we can try a few thing here, backup saves,

pacman -Rns steam

then delete leftovers (~/.local/share/Steam & ~/.steam) and reinstall

sudo pacman -S steam

u could also check for updates

sudo pacman -Syu

another thing u can do is use

STEAM_RUNTIME=0 steam

and see if it works (native runtime)
and also try

DRI_PRIME=1 steam

(igpu init check)

and try switching to x11 - has better steam support

u could also check on ur dbus

busctl --user status

check for missing libraries -

sudo pacman -S lib32-dbus lib32-mesa lib32-libdrm lib32-libx11

if it still doesnt work - maybe flatpak steam is the way to go... (this btw)

Last edited by jasper_e (2026-01-31 17:26:20)


go make the world a better place - money is insignificant as long as there is humanity, foss, and community

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#3 2026-02-02 19:08:51

n-buck
Member
Registered: 2019-05-04
Posts: 3

Re: Steam dumps core on first startup

I see, thanks for the explanation regarding the linux-gate.so.1 and the advice.

Unfortunately the issue is not fixed yet. But also, I can just start the application twice for now.

I tried:

  • Deleting steam, purging leftovers, reinstalling leftovers (system was up to date)
    No Success

  • Check missing libraries

    sudo pacman -S lib32-dbus lib32-mesa lib32-libdrm lib32-libx11

    All installed --> No Success

  • STEAM_RUNTIME=0 steam

    Failed with many errors (steam-native-runtime is not installed)

  • DRI_PRIME=1 steam

    No Sucess

  • busctl --user status

    Gives the following output:

    BusAddress=unix:path=/run/user/1000/bus
    BusScope=user
    BusID=32ace68d71dac9caed94fdc223227b1e
    PID=1223
    PIDFD=yes
    PPID=1
    TTY=n/a
    UID=1000
    EUID=1000
    SUID=1000
    FSUID=1000
    OwnerUID=1000
    GID=1000
    EGID=1000
    SGID=1000
    FSGID=1000
    SupplementaryGIDs=90 982 985 987 990 994 995 996 998 999 1000
    Comm=systemd
    CommandLine=/usr/lib/systemd/systemd --user
    CGroup=/user.slice/user-1000.slice/user@1000.service/init.scope
    Unit=user@1000.service
    Slice=user-1000.slice
    UserUnit=init.scope
    UserSlice=-.slice
    Session=n/a
    AuditLoginUID=1000
    AuditSessionID=3
    EffectiveCapabilities=cap_wake_alarm
    PermittedCapabilities=cap_wake_alarm
    InheritableCapabilities=cap_wake_alarm
    BoundingCapabilities=cap_chown cap_dac_override cap_dac_read_search 
            cap_fowner cap_fsetid cap_kill cap_setgid 
            cap_setuid cap_setpcap cap_linux_immutable cap_net_bind_service 
            cap_net_broadcast cap_net_admin cap_net_raw cap_ipc_lock 
            cap_ipc_owner cap_sys_module cap_sys_rawio cap_sys_chroot 
            cap_sys_ptrace cap_sys_pacct cap_sys_admin cap_sys_boot 
            cap_sys_nice cap_sys_resource cap_sys_time cap_sys_tty_config 
            cap_mknod cap_lease cap_audit_write cap_audit_control 
            cap_setfcap cap_mac_override cap_mac_admin cap_syslog 
            cap_wake_alarm cap_block_suspend cap_audit_read cap_perfmon 
            cap_bpf cap_checkpoint_restore

Maybe one more thing I could mention is, that I have 3 different desktop-portals:

  • xdg-desktop-portal-gnome

  • xdg-desktop-portal-gtk

  • xdg-desktop-portal-hyprland

But I think that should not be an issue.

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#4 2026-02-03 11:31:05

jasper_e
Member
From: Area 51
Registered: 2026-01-31
Posts: 6

Re: Steam dumps core on first startup

hmm, dbus is good...
u said steam runtime is failing cuz of missing runtime so u could just install it from pacman

sudo pacman -S steam-native-runtime

now try with steam native runtime, if it works the steam install is broken

STEAM_RUNTIME=0 steam

multiple portals is usually fine, but waylands kinda homeless, so check which one's active (should be ur de/wm; if you ARE on wayland i still recommend running on x11). if u feel like portals are the problem then u could just pacman -Rns the unused ones.

lets try gpu, try disabling gpu compositing

steam --disable-gpu --disable-gpu-compositing

theres one thing that could provide a lotta inspo (run this right after a failed steam launch)

journalctl --user -xe | grep -i dbus

double launching means that it needs time to init or smth - i dont really know about that im not a steam expert, but tryna help the people best i can


go make the world a better place - money is insignificant as long as there is humanity, foss, and community

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#5 2026-02-06 10:44:10

n-buck
Member
Registered: 2019-05-04
Posts: 3

Re: Steam dumps core on first startup

Thanks for the input, appreciate it!

Unfortunately, steam-native-runtime is not in the official repo, but only available via AUR.
Since the dependencies that come with it, are too complicated for me to fully understand, I would like to avoid installing it smile.

using

steam --disable-gpu --disable-gpu-compositing

does not fix the issue.

the output of

journalctl --user -xe | grep -i dbus

is:

...
Feb 06 11:22:09 nico-arch steam[8304]: dbus[8397]: arguments to dbus_message_new_method_call() were incorrect, assertion "_dbus_check_is_valid_path (path)" failed in file ../dbus/dbus/dbus-message.c line 1389.
                                                  #4  0x00000000f0e5c06b n/a (libdbus-1.so.3 + 0xa06b)
                                                  #5  0x00000000f0e87762 _dbus_warn_check_failed (libdbus-1.so.3 + 0x35762)
                                                  #6  0x00000000f0e8779d _dbus_warn_return_if_fail (libdbus-1.so.3 + 0x3579d)
                                                  #7  0x00000000f0e745de dbus_message_new_method_call (libdbus-1.so.3 + 0x225de)

Uninstalling one of the portals will cause other issues.

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