Appcenter crashes at launch, after system/app update on sept. 26 (2018)

[oldlonecoder]

OS: elementary OS 5.0 Juno x86_64
Host: H97-D3H
Kernel: 4.15.0-34-generic
Packages: 2256
Shell: bash 4.4.19
Resolution: 1920x1080, 1920x1080
DE: Pantheon
WM: Mutter(Gala)
Theme: Elementary [GTK3]
Icons: La-capitaine-icon-theme [GTK3]
Terminal: io.elementary.t
CPU: Intel i7-4790 (8) @ 4.000GHz
GPU: NVIDIA GeForce GTX 1060 3GB
Memory: 1605MiB / 24035MiB

lldb io.elementary.appcenter
(lldb) target create "io.elementary.appcenter"
Current executable set to 'io.elementary.appcenter' (x86_64).
(lldb) r
Process 10591 launched: '/usr/bin/io.elementary.appcenter' (x86_64)
Process 10591 stopped

• thread AppCenter is empty if apt update has never been run [$30 awarded] #1, name = 'io.elementary.a', stop reason = signal SIGSEGV: invalid address (fault address: 0x0)
  frame #0: 0x00007ffff50825a1 libc.so.6`__strlen_avx2 at strlen-avx2.S:62
  (lldb) bt
• thread AppCenter is empty if apt update has never been run [$30 awarded] #1, name = 'io.elementary.a', stop reason = signal SIGSEGV: invalid address (fault address: 0x0)
  • frame #0: 0x00007ffff50825a1 libc.so.6__strlen_avx2 at strlen-avx2.S:62 frame #1: 0x00007ffff5cd340b libappstream.so.4as_utils_compare_versions + 123
    frame Connect to the Houston API #2: 0x00007ffff7601f4e libglib-2.0.so.0___lldb_unnamed_symbol255$$libglib-2.0.so.0 + 494 frame #3: 0x00007ffff7601dd7 libglib-2.0.so.0___lldb_unnamed_symbol255$$libglib-2.0.so.0 + 119
    frame Show an alertview when no Internet connection [$30 awarded] #4: 0x00007ffff7602247 libglib-2.0.so.0___lldb_unnamed_symbol256$$libglib-2.0.so.0 + 487 frame #5: 0x0000555555575bf5 io.elementary.appcenter___lldb_unnamed_symbol343$$io.elementary.appcenter + 85
    frame Include Releases information in AppData.xml #6: 0x00005555555765d0 io.elementary.appcenter___lldb_unnamed_symbol362$$io.elementary.appcenter + 64 frame #7: 0x0000555555577e88 io.elementary.appcenter___lldb_unnamed_symbol395$$io.elementary.appcenter + 296
    frame use the right reversed elementary Scheme #8: 0x000055555559a026 io.elementary.appcenter___lldb_unnamed_symbol1093$$io.elementary.appcenter + 326 frame #9: 0x000055555559b38c io.elementary.appcenter___lldb_unnamed_symbol1112$$io.elementary.appcenter + 44
    frame Q&A link #10: 0x000055555559b55b io.elementary.appcenter___lldb_unnamed_symbol1113$$io.elementary.appcenter + 27 frame #11: 0x000055555559429a io.elementary.appcenter___lldb_unnamed_symbol929$$io.elementary.appcenter + 58
    frame A sane place for Additional Drivers [$125 awarded] #12: 0x0000555555588a9b io.elementary.appcenter___lldb_unnamed_symbol655$$io.elementary.appcenter + 27 frame #13: 0x000055555558e55e io.elementary.appcenter___lldb_unnamed_symbol797$$io.elementary.appcenter + 62
    frame Show operations in progress on the "Installed" tab #14: 0x000055555558c5c0 io.elementary.appcenter___lldb_unnamed_symbol734$$io.elementary.appcenter + 80 frame #15: 0x000055555556c702 io.elementary.appcenter___lldb_unnamed_symbol182$$io.elementary.appcenter + 66
    frame Cache previously found updates #16: 0x00007ffff6473143 libgio-2.0.so.0___lldb_unnamed_symbol1053$$libgio-2.0.so.0 + 35 frame #17: 0x00007ffff6473b66 libgio-2.0.so.0___lldb_unnamed_symbol1057$$libgio-2.0.so.0 + 166
    frame Show addons as updates to apps when the project group and developer is the same #18: 0x000055555557263a io.elementary.appcenter___lldb_unnamed_symbol268$$io.elementary.appcenter + 378 frame #19: 0x000055555556c7c2 io.elementary.appcenter___lldb_unnamed_symbol184$$io.elementary.appcenter + 66
    frame Automatic Security Updates #20: 0x00007ffff6473143 libgio-2.0.so.0___lldb_unnamed_symbol1053$$libgio-2.0.so.0 + 35 frame #21: 0x00007ffff6473b66 libgio-2.0.so.0___lldb_unnamed_symbol1057$$libgio-2.0.so.0 + 166
    frame If an install is not cancel-able, queue an uninstall #22: 0x000055555556d8f4 io.elementary.appcenter___lldb_unnamed_symbol219$$io.elementary.appcenter + 708 frame #23: 0x00007ffff64610d6 libgio-2.0.so.0g_simple_async_result_complete + 102
    frame Show changelog in updates [$100 awarded] #24: 0x00007ffff6461159 libgio-2.0.so.0___lldb_unnamed_symbol865$$libgio-2.0.so.0 + 9 frame #25: 0x00007ffff75f20f5 libglib-2.0.so.0g_main_context_dispatch + 341
    frame Add a blacklist [$25 awarded] #26: 0x00007ffff75f24c0 libglib-2.0.so.0___lldb_unnamed_symbol192$$libglib-2.0.so.0 + 512 frame #27: 0x00007ffff75f254c libglib-2.0.so.0g_main_context_iteration + 44
    frame Show "compulsory for desktop" packages under OS Updates #28: 0x00007ffff6488ddd libgio-2.0.so.0g_application_run + 509 frame #29: 0x0000555555566eee io.elementary.appcenter___lldb_unnamed_symbol38$$io.elementary.appcenter + 46
    frame Update log #30: 0x00007ffff4f15b97 libc.so.6__libc_start_main(main=(io.elementary.appcenter___lldb_unnamed_symbol7$$io.elementary.appcenter), argc=1, argv=0x00007fffffffdd88, init=, fini=, rtld_fini=, stack_end=0x00007fffffffdd78) at libc-start.c:310
    frame lacks ability to compare apps #31: 0x000055555556542a io.elementary.appcenter`___lldb_unnamed_symbol8$$io.elementary.appcenter + 42

---

[oldlonecoder]

mmm ... segfault on a NULL string pointer. Sounds like language translate misconfig?
Just my quick thought;

[davidmhewitt]

I suspect this is a duplicate of #823 , as it's not necessarily just clicking on specific apps that causes it. I'm just about to merge the fix, so we'll see if this improves.

[davidmhewitt]

In fact, I'm almost certain this is a duplicate looking at the backtrace, I'll close this as a duplicate and feel free to re-open it if the next update or two of AppCenter doesn't fix it.

Thanks for your report!

[oldlonecoder]

In fact, I really hope it is little detail as unmanaged null string pointer (inexistent entry) regarding unmanaged incomplete translation list->null items. Because personally, I NEVER present a software I am "almost certain" it is bug free.