Bug 511324

Summary: preamble.py: UnexpectedMappingException: No solib and no image found for frame #28 on thread <gdb.InferiorThread id=1.1 target-id="Thread 0x721279dff600 (LWP 1716)">!
Product: [Applications] drkonqi Reporter: Malte S. Stretz <mss>
Component: backtraceparsingAssignee: Plasma Bugs List <plasma-bugs-null>
Status: REPORTED ---    
Severity: normal CC: kde.giveaway630, silvan.calarco
Priority: NOR    
Version First Reported In: 6.5.0   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Malte S. Stretz 2025-10-29 14:47:15 UTC
SUMMARY

plasmashell crashed and created a stack trace which caused the preamble.py to exit with a stack trace. There was a also message "Gathering crash information failed for unknown reasons. You can retry, close the window, or view detailed output." 

STEPS TO REPRODUCE

No idea. There might have been a network glitch which caused debuginfod to fail downloading stuff.

OBSERVED RESULT

Python exception.

EXPECTED RESULT

A known reason not an unknown reason :-)

SOFTWARE/OS VERSIONS
Operating System: KDE neon User Edition
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.14.0-33-generic (64-bit)

ADDITIONAL INFORMATION

> Starting debugger gdb --init-eval-command=set auto-solib-add off --nw --nx --batch --init-eval-command=set debuginfod enabled on --command=/tmp/drkonqi.blXCYb --command=/tmp/drkonqi.cpaTNM --core=/tmp/drkonqi-core.DhtbGv/core /usr/bin/plasmashell
> 
> warning: Can't open file anon_inode:i915.gem which was expanded to anon_inode:i915.gem during file-backed mapping note processing
> 
> warning: Can't open file /var/cache/swcatalog/cache/en-US-os-catalog.xb (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /memfd:JITCode:QtQml (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /memfd:pulseaudio (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /memfd:kwin-dmabuf-feedback-table (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /home/stretz/.cache/ksycoca6_en_MmrqFbRXCyRNcIAUtJeGh7saF_g= (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /opt/flatpak/exports/share/icons/hicolor/icon-theme.cache (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /opt/flatpak/exports/share/mime/mime.cache (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /home/stretz/.cache/plasma_theme_default.kcache (deleted) during file-backed mapping note processing
> 
> warning: Can't open file /memfd:JSVMStack:QtQml (deleted) during file-backed mapping note processing
> [New LWP 1716]
> [New LWP 1934]
> [New LWP 29929]
> [New LWP 1943]
> [New LWP 1724]
> [New LWP 29954]
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> [New LWP 257153]
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> [New LWP 287466]
> [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/bin/plasmashell --no-respawn'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> Download failed: Invalid argument.  Continuing without source file ./nptl/./nptl/pthread_kill.c.
> #0  __pthread_kill_implementation (no_tid=0, signo=11, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
> 
> warning: 44	./nptl/pthread_kill.c: No such file or directory
> [Current thread is 1 (Thread 0x721279dff600 (LWP 1716))]
> add symbol table from file "/lib/x86_64-linux-gnu/libc.so.6"
> add symbol table from file "/lib/x86_64-linux-gnu/libKF6Crash.so.6"
> add symbol table from file "/lib/x86_64-linux-gnu/libQt6Core.so.6"
> add symbol table from file "/lib/x86_64-linux-gnu/libtaskmanager.so.6"
> add symbol table from file "/lib/x86_64-linux-gnu/libQt6Qml.so.6"
> Traceback (most recent call last):
>   File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 608, in print_preamble
>     print_preamble_internal()
>   File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 599, in print_preamble_internal
>     print_sentry_payload(thread)
>   File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 526, in print_sentry_payload
>     payload = SentryEvent().make(program, thread)
>               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>   File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 439, in make
>     stacktrace = SentryTrace(crash_thread, True).to_dict()
>                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>   File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 286, in to_dict
>     SentryTrace.load_solib(self.thread, cramped_memory)
>   File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 248, in load_solib
>     raise UnexpectedMappingException(f"No solib and no image found for frame #{i} on thread {thread}! You could try with debug symbols downloading enabled.")
> UnexpectedMappingException: No solib and no image found for frame #28 on thread <gdb.InferiorThread id=1.1 target-id="Thread 0x721279dff600 (LWP 1716)">! You could try with debug symbols downloading enabled.
> No solib and no image found for frame #28 on thread <gdb.InferiorThread id=1.1 target-id="Thread 0x721279dff600 (LWP 1716)">! You could try with debug symbols downloading enabled.
> Sentry is attempting to send 2 pending events
> Waiting up to 30 seconds
> Press Ctrl-C to quit
> Debugging ended with exit code '1' and exit status 'NormalExit'
> Debugging ended with exit code '1' and exit status 'NormalExit'
> Debugging ended with exit code '1' and exit status 'NormalExit'
Comment 1 Villemur Clément 2026-01-01 16:57:20 UTC
Same issue on a fresh install of the latest version of KDE Linux. 


Starting debugger gdb --init-eval-command=set auto-solib-add off --nw --nx --batch --init-eval-command=set debuginfod enabled on --command=/tmp/drkonqi.wMXSVj --command=/tmp/drkonqi.iOsTGv --core=/tmp/drkonqi-core.NOkQFy/core /usr/bin/plasmashell

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/5f612594f2dbf235ceb0690f5ba4a2d73e811317.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/c30a6f73a13157d82b865ecd363e5361d32752ab.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/ksycoca6_fr_znkvnqqEK6+ak68ZirDEqZUBcJs= (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/1a293acbb611b59835a7e0beffff86e8bc542331.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/7d68770ca3d801d77524f92080a097d6719e6803.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/d8214defc9309b5a8db3e1f414d66d23ad3ae3cb.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/6619bfb40bfbb70d412708498b0fe9d7545c6c4c.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:kwin-dmabuf-feedback-table (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:wayland-shm (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JITCode:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:pulseaudio (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:unknown-usage:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JSVMStack:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed mapping note processing

warning: Can't open file /var/lib/flatpak/exports/share/mime/mime.cache (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/76d8511d52f5fc167675e05dc73dff0590f88f76.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/4165296e2ea228dac1bf9a66313225fde1b70abf.qmlc (deleted) during file-backed mapping note processing

warning: Can't open file /var/lib/flatpak/exports/share/icons/hicolor/icon-theme.cache (deleted) during file-backed mapping note processing

warning: Can't open file /home/maledict/.cache/plasmashell/qmlcache/15de974aaa720d2911450b5591fac562ef73af5a.qmlc (deleted) during file-backed mapping note processing
[New LWP 2084]
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/bin/plasmashell --no-respawn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
44	      return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0;
[Current thread is 1 (Thread 0x7f3591f11b80 (LWP 2084))]
Using eu-unstrip to resolve modules.
add symbol table from file "/usr/lib/libc.so.6"
add symbol table from file "/usr/lib/libKF6Crash.so.6"
add symbol table from file "/usr/lib/libQt6Qml.so.6"
Traceback (most recent call last):
  File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 663, in print_preamble
    print_preamble_internal()
    ~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 654, in print_preamble_internal
    print_sentry_payload(thread)
    ~~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 526, in print_sentry_payload
    payload = SentryEvent().make(program, thread)
  File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 439, in make
    stacktrace = SentryTrace(crash_thread, True).to_dict()
  File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 286, in to_dict
    SentryTrace.load_solib(self.thread, cramped_memory)
    ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/share/drkonqi/gdb/python/gdb_preamble/preamble.py", line 248, in load_solib
    raise UnexpectedMappingException(f"No solib and no image found for frame #{i} on thread {thread}! You could try with debug symbols downloading enabled.")
UnexpectedMappingException: No solib and no image found for frame #23 on thread <gdb.InferiorThread id=1.1 target-id="Thread 0x7f3591f11b80 (LWP 2084)">! You could try with debug symbols downloading enabled.
No solib and no image found for frame #23 on thread <gdb.InferiorThread id=1.1 target-id="Thread 0x7f3591f11b80 (LWP 2084)">! You could try with debug symbols downloading enabled.
Sentry is attempting to send 2 pending events
Waiting up to 30 seconds
Press Ctrl-C to quit
Debugging ended with exit code '1' and exit status 'NormalExit'
Debugging ended with exit code '1' and exit status 'NormalExit'
Debugging ended with exit code '1' and exit status 'NormalExit'
Debugging ended with exit code '1' and exit status 'NormalExit'
Debugging ended with exit code '1' and exit status 'NormalExit'