Issues with debugging GC-related crashes #2

[Matthias Klumpp]

On Tuesday, 17 April 2018 at 08:23:07 UTC, Kagamin wrote:
> Other stuff to try:
> 1. run application compiled on debian against ubuntu libs
> 2. can you mix dependencies from debian and ubuntu?

I haven't tried that yet (next on my todo list), if I do run the 
program compiled with address sanitizer on Debian, I do get 
errors like:
```
AddressSanitizer:DEADLYSIGNAL
=================================================================
==25964==ERROR: AddressSanitizer: SEGV on unknown address 
0x7fac8db3f800 (pc 0x7fac9c433430 bp 0x000000000008 sp 
0x7ffc92be3dd0 T0)
==25964==The signal is caused by a READ memory access.
     #0 0x7fac9c43342f in 
_D2gc4impl12conservativeQw3Gcx4markMFNbNlPvQcZv 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xa142f)
     #1 0x7fac9c433a2f in 
_D2gc4impl12conservativeQw3Gcx7markAllMFNbbZ14__foreachbody3MFNbKSQCm11gcinterface5RangeZi (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xa1a2f)
     #2 0x7fac9c459ad4 in 
_D2rt4util9container5treap__T5TreapTS2gc11gcinterface5RangeZQBf13opApplyHelperFNbxPSQDeQDeQDcQCv__TQCsTQCpZQDa4NodeMDFNbKxSQDiQDiQCyZiZi (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xc7ad4)
     #3 0x7fac9c459ac6 in 
_D2rt4util9container5treap__T5TreapTS2gc11gcinterface5RangeZQBf13opApplyHelperFNbxPSQDeQDeQDcQCv__TQCsTQCpZQDa4NodeMDFNbKxSQDiQDiQCyZiZi (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xc7ac6)
     #4 0x7fac9c459ac6 in 
_D2rt4util9container5treap__T5TreapTS2gc11gcinterface5RangeZQBf13opApplyHelperFNbxPSQDeQDeQDcQCv__TQCsTQCpZQDa4NodeMDFNbKxSQDiQDiQCyZiZi (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xc7ac6)
     #5 0x7fac9c459ac6 in 
_D2rt4util9container5treap__T5TreapTS2gc11gcinterface5RangeZQBf13opApplyHelperFNbxPSQDeQDeQDcQCv__TQCsTQCpZQDa4NodeMDFNbKxSQDiQDiQCyZiZi (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xc7ac6)
     #6 0x7fac9c459a51 in 
_D2rt4util9container5treap__T5TreapTS2gc11gcinterface5RangeZQBf7opApplyMFNbMDFNbKQBtZiZi (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xc7a51)
     #7 0x7fac9c430f26 in 
_D2gc4impl12conservativeQw3Gcx11fullcollectMFNbbZm 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0x9ef26)
     #8 0x7fac9c431226 in 
_D2gc4impl12conservativeQw14ConservativeGC__T9runLockedS_DQCeQCeQCcQCnQBs18fullCollectNoStackMFNbZ2goFNbPSQEaQEaQDyQEj3GcxZmTQvZQDfMFNbKQBgZm (/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0x9f226)
     #9 0x7fac9c4355d0 in gc_term 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xa35d0)
     #10 0x7fac9c443ab2 in rt_term 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xb1ab2)
     #11 0x7fac9c443e65 in 
_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZv 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xb1e65)
     #12 0x7fac9c443d0b in _d_run_main 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xb1d0b)
     #13 0x7fac9b9cfa86 in __libc_start_main 
(/lib/x86_64-linux-gnu/libc.so.6+0x21a86)
     #14 0x55acd1dbe1d9 in _start 
(/home/matthias/Development/AppStream/generator/build/src/asgen/appstream-generator+0xba1d9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV 
(/usr/lib/x86_64-linux-gnu/libdruntime-ldc-shared.so.78+0xa142f) 
in _D2gc4impl12conservativeQw3Gcx4markMFNbNlPvQcZv
==25964==ABORTING
```
So, I don't think this bug is actually limited to Ubuntu, it just 
shows up there more often for some reason.