Bug 472295

Summary: Crash upon first invocation of Discover.
Product: [Applications] Discover Reporter: Roke Julian Lockhart Beedell <4wy78uwh>
Component: discoverAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: crash CC: aleixpol, nate
Priority: NOR Keywords: drkonqi
Version: 5.27.6Flags: 4wy78uwh: performance-
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Roke Julian Lockhart Beedell 2023-07-16 01:17:36 UTC 
Application: plasma-discover (5.27.6)

Qt Version: 5.15.10
Frameworks Version: 5.108.0
Operating System: Linux 6.4.2-1-default x86_64
Windowing System: X11
Distribution: openSUSE Tumbleweed
DrKonqi: 5.27.6 [CoredumpBackend]

-- Information about the crash:
I installed this system 5 minutes ago. When I first opened Discover, it crashed. I opened the Konqi notification. After that, I authenticated with Wi-Fi and opened Discover again, and it worked without crashing. Upon submitting the report via Konqi, Konqi told me it couldn't report the issue, citing https://bugs.kde.org/rest/bug?token=236970-SLGSrc4Kg8. When I closed Konqi, a crash report appeared again, which was this one.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault

           PID: 2329 (plasma-discover)
           UID: 1000 (rokejulianlockhart)
           GID: 1000 (rokejulianlockhart)
        Signal: 11 (SEGV)
     Timestamp: Sun 2023-07-16 03:14:15 BST (23s ago)
  Command Line: /usr/bin/plasma-discover
    Executable: /usr/bin/plasma-discover
 Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.kde.discover-787fe276487641799129be7f3ccd29c1.scope
          Unit: user@1000.service
     User Unit: app-org.kde.discover-787fe276487641799129be7f3ccd29c1.scope
         Slice: user-1000.slice
     Owner UID: 1000 (rokejulianlockhart)
       Boot ID: e316e2e767bb4e098fa0d1ced4d47fa2
    Machine ID: 908d4262dade41a1915eaf926da23809
      Hostname: localhost.localdomain
       Storage: /var/lib/systemd/coredump/core.plasma-discover.1000.e316e2e767bb4e098fa0d1ced4d47fa2.2329.1689473655000000.zst (present)
  Size on Disk: 49.2M
       Message: Process 2329 (plasma-discover) of user 1000 dumped core.
                
                Stack trace of thread 2329:
                #0  0x00007f0e51292abc __pthread_kill_implementation (libc.so.6 + 0x8fabc)
                #1  0x00007f0e51241266 raise (libc.so.6 + 0x3e266)
                #2  0x00007f0e53b98d3a _ZN6KCrash19defaultCrashHandlerEi (libKF5Crash.so.5 + 0x7d3a)
                #3  0x00007f0e51241330 __restore_rt (libc.so.6 + 0x3e330)
                #4  0x00007f0e51904497 _ZNSt13__atomic_baseIP10QMutexDataE23compare_exchange_strongERS1_S1_St12memory_orderS4_ (libQt5Core.so.5 + 0x104497)
                #5  0x00007f0e51aef374 _ZNSt11unique_lockI6QMutexE4lockEv (libQt5Core.so.5 + 0x2ef374)
                #6  0x00007f0e51af050d _ZN16QCoreApplication9postEventEP7QObjectP6QEventi (libQt5Core.so.5 + 0x2f050d)
                #7  0x00007f0e00379b69 _ZNSt17_Function_handlerIFvvEZN17PackageKitBackend6searchERKN24AbstractResourcesBackend7FiltersEEUlvE7_E9_M_invokeERKSt9_Any_data (packagekit-backend.so + 0x2bb69)
                #8  0x00007f0e51b192b0 _ZN7QObject5eventEP6QEvent (libQt5Core.so.5 + 0x3192b0)
                #9  0x00007f0e535a519e _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 + 0x1a519e)
                #10 0x00007f0e51aed4f8 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 + 0x2ed4f8)
                #11 0x00007f0e51af0af1 _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt5Core.so.5 + 0x2f0af1)
                #12 0x00007f0e51b46c83 postEventSourceDispatch (libQt5Core.so.5 + 0x346c83)
                #13 0x00007f0e50116988 g_main_context_dispatch (libglib-2.0.so.0 + 0x5d988)
                #14 0x00007f0e50116d98 n/a (libglib-2.0.so.0 + 0x5dd98)
                #15 0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #16 0x00007f0e51b46496 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x346496)
                #17 0x00007f0e51aebf8b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebf8b)
                #18 0x00007f0e51af4420 _ZN16QCoreApplication4execEv (libQt5Core.so.5 + 0x2f4420)
                #19 0x00005615e12462a0 main (plasma-discover + 0x192a0)
                #20 0x00007f0e5122abf0 __libc_start_call_main (libc.so.6 + 0x27bf0)
                #21 0x00007f0e5122acb9 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x27cb9)
                #22 0x00005615e1246c95 _start (plasma-discover + 0x19c95)
                
                Stack trace of thread 2343:
                #0  0x00007f0e50112f6a n/a (libglib-2.0.so.0 + 0x59f6a)
                #1  0x00007f0e50114aad n/a (libglib-2.0.so.0 + 0x5baad)
                #2  0x00007f0e501160eb g_main_context_prepare (libglib-2.0.so.0 + 0x5d0eb)
                #3  0x00007f0e50116c43 n/a (libglib-2.0.so.0 + 0x5dc43)
                #4  0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #5  0x00007f0e51b464ae _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464ae)
                #6  0x00007f0e51aebf8b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebf8b)
                #7  0x00007f0e51902d5e _ZN7QThread4execEv (libQt5Core.so.5 + 0x102d5e)
                #8  0x00007f0e52942685 n/a (libQt5Qml.so.5 + 0x342685)
                #9  0x00007f0e51903f8d operator() (libQt5Core.so.5 + 0x103f8d)
                #10 0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #11 0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2344:
                #0  0x00007f0e5130a48f __poll (libc.so.6 + 0x10748f)
                #1  0x00007f0e50116d0e n/a (libglib-2.0.so.0 + 0x5dd0e)
                #2  0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #3  0x00007f0e51b464ae _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464ae)
                #4  0x00007f0e51aebf8b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebf8b)
                #5  0x00007f0e51902d5e _ZN7QThread4execEv (libQt5Core.so.5 + 0x102d5e)
                #6  0x00007f0e51903f8d operator() (libQt5Core.so.5 + 0x103f8d)
                #7  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #8  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2346:
                #0  0x00007f0e5130a48f __poll (libc.so.6 + 0x10748f)
                #1  0x00007f0e50116d0e n/a (libglib-2.0.so.0 + 0x5dd0e)
                #2  0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #3  0x00007f0e50116e71 n/a (libglib-2.0.so.0 + 0x5de71)
                #4  0x00007f0e50142fbe n/a (libglib-2.0.so.0 + 0x89fbe)
                #5  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #6  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2347:
                #0  0x00007f0e5130a48f __poll (libc.so.6 + 0x10748f)
                #1  0x00007f0e50116d0e n/a (libglib-2.0.so.0 + 0x5dd0e)
                #2  0x00007f0e5011704f g_main_loop_run (libglib-2.0.so.0 + 0x5e04f)
                #3  0x00007f0e4fff08c6 n/a (libgio-2.0.so.0 + 0x1228c6)
                #4  0x00007f0e50142fbe n/a (libglib-2.0.so.0 + 0x89fbe)
                #5  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #6  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2392:
                #0  0x00007f0e5130a48f __poll (libc.so.6 + 0x10748f)
                #1  0x00007f0e50116d0e n/a (libglib-2.0.so.0 + 0x5dd0e)
                #2  0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #3  0x00007f0e00cb197d n/a (libdconfsettings.so + 0x697d)
                #4  0x00007f0e50142fbe n/a (libglib-2.0.so.0 + 0x89fbe)
                #5  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #6  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2426:
                #0  0x00007f0e5130610c read (libc.so.6 + 0x10310c)
                #1  0x00007f0e5016aad7 n/a (libglib-2.0.so.0 + 0xb1ad7)
                #2  0x00007f0e501167e4 g_main_context_check (libglib-2.0.so.0 + 0x5d7e4)
                #3  0x00007f0e50116cb8 n/a (libglib-2.0.so.0 + 0x5dcb8)
                #4  0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #5  0x00007f0e51b464ae _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464ae)
                #6  0x00007f0e51aebf8b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebf8b)
                #7  0x00007f0e51902d5e _ZN7QThread4execEv (libQt5Core.so.5 + 0x102d5e)
                #8  0x00007f0e51903f8d operator() (libQt5Core.so.5 + 0x103f8d)
                #9  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #10 0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2332:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2330:
                #0  0x00007f0e5130a48f __poll (libc.so.6 + 0x10748f)
                #1  0x00007f0e50116d0e n/a (libglib-2.0.so.0 + 0x5dd0e)
                #2  0x00007f0e50116e2c g_main_context_iteration (libglib-2.0.so.0 + 0x5de2c)
                #3  0x00007f0e51b464ae _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x3464ae)
                #4  0x00007f0e51aebf8b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2ebf8b)
                #5  0x00007f0e51902d5e _ZN7QThread4execEv (libQt5Core.so.5 + 0x102d5e)
                #6  0x00007f0e52c11517 n/a (libQt5DBus.so.5 + 0x1a517)
                #7  0x00007f0e51903f8d operator() (libQt5Core.so.5 + 0x103f8d)
                #8  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #9  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2333:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2345:
                #0  0x00007f0e5131041d syscall (libc.so.6 + 0x10d41d)
                #1  0x00007f0e50170480 g_cond_wait (libglib-2.0.so.0 + 0xb7480)
                #2  0x00007f0e500e0f4b n/a (libglib-2.0.so.0 + 0x27f4b)
                #3  0x00007f0e50143602 n/a (libglib-2.0.so.0 + 0x8a602)
                #4  0x00007f0e50142fbe n/a (libglib-2.0.so.0 + 0x89fbe)
                #5  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #6  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2334:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2335:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2337:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2336:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2341:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2338:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2342:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2424:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2425:
                #0  0x00007f0e5128d20e __futex_abstimed_wait_common (libc.so.6 + 0x8a20e)
                #1  0x00007f0e5128ff50 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8cf50)
                #2  0x00007f0e44cbe80b n/a (iris_dri.so + 0xbe80b)
                #3  0x00007f0e44d0d037 n/a (iris_dri.so + 0x10d037)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                
                Stack trace of thread 2427:
                #0  0x00007f0e5131041d syscall (libc.so.6 + 0x10d41d)
                #1  0x00007f0e51905f8b _ZN12QtLinuxFutex8_q_futexEPiiiyS0_i (libQt5Core.so.5 + 0x105f8b)
                #2  0x00007f0e51144d14 n/a (libQt5Network.so.5 + 0xf7d14)
                #3  0x00007f0e51903f8d operator() (libQt5Core.so.5 + 0x103f8d)
                #4  0x00007f0e51290c64 start_thread (libc.so.6 + 0x8dc64)
                #5  0x00007f0e51318550 __clone3 (libc.so.6 + 0x115550)
                ELF object binary architecture: AMD x86-64

[New LWP 2329]
[New LWP 2343]
[New LWP 2344]
[New LWP 2346]
[New LWP 2347]
[New LWP 2392]
[New LWP 2426]
[New LWP 2332]
[New LWP 2330]
[New LWP 2333]
[New LWP 2345]
[New LWP 2334]
[New LWP 2335]
[New LWP 2337]
[New LWP 2336]
[New LWP 2341]
[New LWP 2338]
[New LWP 2342]
[New LWP 2424]
[New LWP 2425]
[New LWP 2427]

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.opensuse.org/>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/plasma-discover'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f0e51292abc in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f0e4ed72980 (LWP 2329))]
[Current thread is 13 (Thread 0x7f0e337fe6c0 (LWP 2335))]

Thread 21 (Thread 0x7f0dc90fb6c0 (LWP 2427)):
#0  0x00007f0e5131041d in syscall () from /lib64/libc.so.6
#1  0x00007f0e51905f8b in QtLinuxFutex::_q_futex (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:114
#2  QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned int> > (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:133
#3  futexSemaphoreTryAcquire_loop<false> (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:219
#4  futexSemaphoreTryAcquire<false> (timeout=-1, n=<optimized out>, u=...) at thread/qsemaphore.cpp:262
#5  QSemaphore::acquire (this=0x7f0e51202540, n=<optimized out>) at thread/qsemaphore.cpp:326
#6  0x00007f0e51144d14 in ?? () from /lib64/libQt5Network.so.5
#7  0x00007f0e51903f8d in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#8  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#9  QThreadPrivate::start (arg=0x7f0e51202520) at thread/qthread_unix.cpp:310
#10 0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#11 0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 20 (Thread 0x7f0dcaffd6c0 (LWP 2425)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7f0dcb7fe6c0 (LWP 2424)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7f0e30ff96c0 (LWP 2342)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7f0e31ffb6c0 (LWP 2338)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7f0e317fa6c0 (LWP 2341)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7f0e32ffd6c0 (LWP 2336)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7f0e327fc6c0 (LWP 2337)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7f0e337fe6c0 (LWP 2335)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7f0e33fff6c0 (LWP 2334)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7f0e02cf76c0 (LWP 2345)):
#0  0x00007f0e5131041d in syscall () from /lib64/libc.so.6
#1  0x00007f0e50170480 in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f0e500e0f4b in ?? () from /lib64/libglib-2.0.so.0
#3  0x00007f0e50143602 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007f0e50142fbe in ?? () from /lib64/libglib-2.0.so.0
#5  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#6  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f0e38bff6c0 (LWP 2333)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f0e4c9006c0 (LWP 2330)):
#0  0x00007f0e5130a48f in poll () from /lib64/libc.so.6
#1  0x00007f0e50116d0e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0e51b464ae in QEventDispatcherGlib::processEvents (this=0x7f0e48000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f0e51aebf8b in QEventLoop::exec (this=this@entry=0x7f0e4c8ffbd0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f0e51902d5e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f0e52c11517 in ?? () from /lib64/libQt5DBus.so.5
#7  0x00007f0e51903f8d in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#8  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#9  QThreadPrivate::start (arg=0x7f0e52c8a060) at thread/qthread_unix.cpp:310
#10 0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#11 0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f0e4496e6c0 (LWP 2332)):
#0  0x00007f0e5128d20e in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f0e5128ff50 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f0e44cbe80b in ?? () from /usr/lib64/dri/iris_dri.so
#3  0x00007f0e44d0d037 in ?? () from /usr/lib64/dri/iris_dri.so
#4  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#5  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f0dc98fc6c0 (LWP 2426)):
#0  0x00007f0e5130610c in read () from /lib64/libc.so.6
#1  0x00007f0e5016aad7 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e501167e4 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f0e50116cb8 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f0e51b464ae in QEventDispatcherGlib::processEvents (this=0x7f0db4000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f0e51aebf8b in QEventLoop::exec (this=this@entry=0x7f0dc98fbc00, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#7  0x00007f0e51902d5e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f0e51903f8d in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#9  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#10 QThreadPrivate::start (arg=0x5615ea265960) at thread/qthread_unix.cpp:310
#11 0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#12 0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f0de3fff6c0 (LWP 2392)):
#0  0x00007f0e5130a48f in poll () from /lib64/libc.so.6
#1  0x00007f0e50116d0e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0e00cb197d in ?? () from /usr/lib64/gio/modules/libdconfsettings.so
#4  0x00007f0e50142fbe in ?? () from /lib64/libglib-2.0.so.0
#5  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#6  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f0e01cd56c0 (LWP 2347)):
#0  0x00007f0e5130a48f in poll () from /lib64/libc.so.6
#1  0x00007f0e50116d0e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e5011704f in g_main_loop_run () from /lib64/libglib-2.0.so.0
#3  0x00007f0e4fff08c6 in ?? () from /lib64/libgio-2.0.so.0
#4  0x00007f0e50142fbe in ?? () from /lib64/libglib-2.0.so.0
#5  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#6  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f0e024f66c0 (LWP 2346)):
#0  0x00007f0e5130a48f in poll () from /lib64/libc.so.6
#1  0x00007f0e50116d0e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0e50116e71 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007f0e50142fbe in ?? () from /lib64/libglib-2.0.so.0
#5  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#6  0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f0e035f86c0 (LWP 2344)):
#0  0x00007f0e5130a48f in poll () from /lib64/libc.so.6
#1  0x00007f0e50116d0e in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f0e51b464ae in QEventDispatcherGlib::processEvents (this=0x7f0df4000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f0e51aebf8b in QEventLoop::exec (this=this@entry=0x7f0e035f7c00, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f0e51902d5e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f0e51903f8d in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#7  (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#8  QThreadPrivate::start (arg=0x5615e33b4b10) at thread/qthread_unix.cpp:310
#9  0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#10 0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f0e043ff6c0 (LWP 2343)):
#0  0x00007f0e50112f6a in ?? () from /lib64/libglib-2.0.so.0
#1  0x00007f0e50114aad in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f0e501160eb in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#3  0x00007f0e50116c43 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f0e51b464ae in QEventDispatcherGlib::processEvents (this=0x7f0dfc000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f0e51aebf8b in QEventLoop::exec (this=this@entry=0x7f0e043febe0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#7  0x00007f0e51902d5e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f0e52942685 in ?? () from /lib64/libQt5Qml.so.5
#9  0x00007f0e51903f8d in operator() (__closure=<optimized out>) at thread/qthread_unix.cpp:350
#10 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=...) at thread/qthread_unix.cpp:287
#11 QThreadPrivate::start (arg=0x5615e3303e40) at thread/qthread_unix.cpp:310
#12 0x00007f0e51290c64 in start_thread () from /lib64/libc.so.6
#13 0x00007f0e51318550 in clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f0e4ed72980 (LWP 2329)):
[KCrash Handler]
#4  0x00007f0e51904497 in std::__atomic_base<QMutexData*>::compare_exchange_strong (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=<synthetic pointer>: 0x0, this=this@entry=0x40c4834800000128) at /usr/include/c++/13/bits/atomic_base.h:893
#5  std::atomic<QMutexData*>::compare_exchange_strong (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=<synthetic pointer>: 0x0, this=this@entry=0x40c4834800000128) at /usr/include/c++/13/atomic:623
#6  QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=<error reading variable: Cannot access memory at address 0x40c4834800000128>) at ../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:308
#7  QBasicAtomicPointer<QMutexData>::testAndSetAcquire (currentValue=<synthetic pointer>: <optimized out>, newValue=0x1, expectedValue=0x0, this=this@entry=0x40c4834800000128) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:273
#8  QBasicMutex::fastTryLock (current=<synthetic pointer>: <optimized out>, this=this@entry=0x40c4834800000128) at thread/qmutex.h:128
#9  QMutex::lock (this=this@entry=0x40c4834800000128) at thread/qmutex.cpp:232
#10 0x00007f0e51aef374 in std::unique_lock<QMutex>::lock (this=<synthetic pointer>) at /usr/include/c++/13/bits/unique_lock.h:133
#11 std::unique_lock<QMutex>::unique_lock (__m=..., this=<synthetic pointer>) at /usr/include/c++/13/bits/unique_lock.h:71
#12 (anonymous namespace)::qt_unique_lock<QMutex> (mutex=...) at ../../include/QtCore/5.15.10/QtCore/private/../../../../../src/corelib/thread/qlocking_p.h:106
#13 QCoreApplicationPrivate::lockThreadPostEventList (object=object@entry=0x5615e9b27f10) at kernel/qcoreapplication.cpp:1500
#14 0x00007f0e51af050d in QCoreApplication::postEvent (receiver=0x5615e9b27f10, event=0x5615e4a4e970, priority=0) at kernel/qcoreapplication.cpp:1546
#15 0x00007f0e51b16fa1 in QObject::deleteLater (this=<optimized out>) at kernel/qobject.cpp:2340
#16 0x00007f0e53c4cb45 in ResultsStream::finish (this=<optimized out>) at /usr/src/debug/discover-5.27.6/libdiscover/resources/AbstractResourcesBackend.cpp:64
#17 0x00007f0e00379b69 in operator() (__closure=0x5615e3a023e0) at /usr/src/debug/discover-5.27.6/libdiscover/backends/PackageKitBackend/PackageKitBackend.cpp:697
#18 std::__invoke_impl<void, PackageKitBackend::search(const AbstractResourcesBackend::Filters&)::<lambda()>&> (__f=...) at /usr/include/c++/13/bits/invoke.h:61
#19 std::__invoke_r<void, PackageKitBackend::search(const AbstractResourcesBackend::Filters&)::<lambda()>&> (__fn=...) at /usr/include/c++/13/bits/invoke.h:111
#20 std::_Function_handler<void(), PackageKitBackend::search(const AbstractResourcesBackend::Filters&)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/13/bits/std_function.h:290
#21 0x00007f0e51b192b0 in QObject::event (this=0x5615e33d7fc0, e=0x5615ea21ed90) at kernel/qobject.cpp:1347
#22 0x00007f0e535a519e in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5615e33d7fc0, e=0x5615ea21ed90) at kernel/qapplication.cpp:3640
#23 0x00007f0e51aed4f8 in QCoreApplication::notifyInternal2 (receiver=0x5615e33d7fc0, event=0x5615ea21ed90) at kernel/qcoreapplication.cpp:1064
#24 0x00007f0e51aed6be in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at kernel/qcoreapplication.cpp:1462
#25 0x00007f0e51af0af1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5615e2f7c060) at kernel/qcoreapplication.cpp:1821
#26 0x00007f0e51af1038 in QCoreApplication::sendPostedEvents (receiver=<optimized out>, event_type=<optimized out>) at kernel/qcoreapplication.cpp:1680
#27 0x00007f0e51b46c83 in postEventSourceDispatch (s=0x5615e3085050) at kernel/qeventdispatcher_glib.cpp:277
#28 0x00007f0e50116988 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#29 0x00007f0e50116d98 in ?? () from /lib64/libglib-2.0.so.0
#30 0x00007f0e50116e2c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#31 0x00007f0e51b46496 in QEventDispatcherGlib::processEvents (this=0x5615e307e060, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#32 0x00007f0e51aebf8b in QEventLoop::exec (this=this@entry=0x7ffde3056a30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#33 0x00007f0e51af4420 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#34 0x00005615e12462a0 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/discover-5.27.6/discover/main.cpp:224

The reporter indicates this bug may be a duplicate of or related to bug 398564, bug 467188.

Reported using DrKonqi
Comment 1 Nate Graham 2024-05-23 20:30:07 UTC 
Can I ask you to see if this is reproducible in Plasma 6?
Comment 2 Roke Julian Lockhart Beedell 2024-05-23 20:43:01 UTC 
(In reply to Nate Graham from comment #1)
I've not had Discover crash for a while, and per https://bugs.kde.org/show_bug.cgi?id=472295#c0:~:text=I%20installed%20this%20system%205,not%20seem%20to%20be%20reproducible, it seems like I didn't have any of reproducing it anyway, so I doubt it. Knowing that, file it as you wish, unless that backtrace means that there might be a specific thing I can do to assist.
Comment 3 Nate Graham 2024-08-05 17:51:49 UTC 

*** This bug has been marked as a duplicate of bug 467188 ***