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Re: mono core dumping on current

In article <>,
Thomas Klausner  <> wrote:
>On 6.99.3/amd64, I have trouble with a few mono packages that built
>fine on 5.99.64.
>I've tried rebuilding mono, and this also fails now.
>with CFLAGS=-g -O0 I get the following backtrace for the core dump
>during the build:
>gmake[5]: Entering directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
>/bin/sh .//mkinstalldirs build/deps
>mkdir -p -- build/deps
>touch build/deps/.stamp
>gmake[6]: Entering directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
>gmake[6]: gmcs: Command not found
>gmake[6]: *** [build/deps/basic-profile-check.exe] Error 127
>gmake[6]: Leaving directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
>gmake[6]: Entering directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
>*** The compiler 'gmcs' doesn't appear to be usable.
>*** Trying the 'monolite' directory.
>gmake[7]: Entering directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
>gmake[8]: Entering directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
>[1]   Abort trap (core dumped) MONO_PATH=".//cl...
>gmake[8]: *** [build/deps/basic-profile-check.exe] Error 134
>gmake[8]: Leaving directory `/scratch/lang/mono/work/mono-2.10.6/mcs'
># gdb ../mono/mini/mono mono.core
>GNU gdb (GDB) 7.3.1
>Copyright (C) 2011 Free Software Foundation, Inc.
>License GPLv3+: GNU GPL version 3 or later <>
>This is free software: you are free to change and redistribute it.
>There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>and "show warranty" for details.
>This GDB was configured as "x86_64--netbsd".
>For bug reporting instructions, please see:
>Reading symbols from /scratch/lang/mono/work/mono-2.10.6/mono/mini/mono...done.
>[New process 1]
>[New process 8]
>[New process 7]
>[New process 6]
>[New process 5]
>[New process 4]
>[New process 3]
>[New process 2]
>Core was generated by `mono'.
>Program terminated with signal 6, Aborted.
>#0  0x00007f7ff70ed9da in _lwp_kill () from /usr/lib/
>(gdb) bt
>#0  0x00007f7ff70ed9da in _lwp_kill () from /usr/lib/
>#1  0x00007f7ff70ed312 in abort () at
>#2  0x00000000004d7de5 in mono_handle_native_sigsegv (signal=11,
>ctx=0x7f7fffffb3e0) at mini-exceptions.c:2245
>#3  0x0000000000420685 in mono_sigsegv_signal_handler (_dummy=11,
>info=0x7f7fffffb360, context=0x7f7fffffb3e0) at mini.c:5848
>#4  <signal handler called>
>#5  GC_push_all_eager (bottom=0x7f7fffffb7e8 "�\377\377\177\177",
>top=0x7f8008000000 <Address 0x7f8008000000 out of bounds>) at
>#6  0x00000000006b3fa8 in GC_push_all_stack (bottom=0x7f7fffffb7e8
>"�\377\377\177\177", top=0x7f8008000000 <Address 0x7f8008000000 out of
>bounds>) at mark.c:1521
>#7  0x00000000006bbecd in pthread_push_all_stacks () at 
>#8  0x00000000006bbf49 in GC_push_all_stacks () at pthread_stop_world.c:332
>#9  0x00000000006b71d2 in GC_default_push_other_roots () at os_dep.c:2255
>#10 0x00000000006b53ac in GC_push_roots (all=1,
>cold_gc_frame=0x7f7fffffb8e4 "\177\177") at mark_rts.c:646
>#11 0x00000000006b1dd7 in GC_mark_some (cold_gc_frame=0x7f7fffffb8e4
>"\177\177") at mark.c:326
>#12 0x00000000006abe0a in GC_stopped_mark (stop_func=0x6ab387
><GC_never_stop_func>) at alloc.c:543
>#13 0x00000000006ab9eb in GC_try_to_collect_inner (stop_func=0x6ab387
><GC_never_stop_func>) at alloc.c:382
>#14 0x00000000006b5d6e in GC_init_inner () at misc.c:807
>#15 0x00000000006b596b in GC_init () at misc.c:517
>#16 0x0000000000574bbc in mono_gc_base_init () at boehm-gc.c:126
>#17 0x0000000000598d30 in mono_init_internal (filename=0x7f7fffffe428
>".//class/lib/monolite/mcs.exe", exe_filename=0x7f7fffffe428
>".//class/lib/monolite/mcs.exe", runtime_version=0x0) at domain.c:1286
>#18 0x000000000059a0a1 in mono_init_from_assembly
>(domain_name=0x7f7fffffe428 ".//class/lib/monolite/mcs.exe",
>filename=0x7f7fffffe428 ".//class/lib/monolite/mcs.exe") at
>#19 0x000000000042140a in mini_init (filename=0x7f7fffffe428
>".//class/lib/monolite/mcs.exe", runtime_version=0x0) at mini.c:6321
>#20 0x00000000004ad44b in mono_main (argc=7, argv=0x7f7fffffbdb8) at
>#21 0x0000000000412d8e in mono_main_with_options (argc=7,
>argv=0x7f7fffffbdb8) at main.c:66
>#22 0x0000000000412dbe in main (argc=7, argv=0x7f7fffffbdb8) at main.c:97
>Can someone make something of this?

Yes, pthread stack creation was changed in current. Please file a PR.
I think joerg would be interested in looking at it. Does building fresh
packages fix it?


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