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boehmgc issue #167 memo
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| 7.7.0 (master): MinGW: gctest.exe fails | |
| from #166 | |
| > 1. Could you please recheck it using master branch of bdwgc (with any libatomic_ops)? | |
| > 2. Same as 1 plus --disable-parallel-mark --enable-gc-assertions | |
| > 3. Same as 2 plus comment out THREAD_LOCAL_ALLOC definition in include/config.h | |
| I tried a master branch, but I got many failures. | |
| (A1) I tried master branch. (Next, I will add options.) | |
| GC: gc-7.7.0-01f83d4.zip and libatomic_ops-7.6.0.tar.gz | |
| - **testA:** | |
| ./autogen.sh | |
| ./configure --enable-threads=win32 --enable-large-config --disable-gcj-support CPPFLAGS="-DDONT_ADD_BYTE_AT_END " | |
| make check | |
| COUNT=0; while :; do ./gctest.exe; (( COUNT++ )); echo $COUNT; done | |
| **result:** | |
| TOTAL COUNT: 200 | |
| PASS: 57 | |
| FAIL(Segmentation fault): 143 | |
| - **testB:** | |
| libtool --mode=execute gdb gctest.exe | |
| Input 'r' command repeatedly until error occurs. | |
| **result:** | |
| ``` | |
| Thread 8 received signal SIGSEGV, Segmentation fault. | |
| [Switching to Thread 10192.0xc64] | |
| GC_reclaim_block (hbp=0x525000, report_if_found=0) at reclaim.c:443 | |
| 443 hhdr -> hb_next = *rlh; | |
| (gdb) p rlh | |
| $1 = (struct hblk **) 0x50 | |
| (gdb) p *rlh | |
| Cannot access memory at address 0x50 | |
| (gdb) bt | |
| #0 GC_reclaim_block (hbp=0x525000, report_if_found=0) at reclaim.c:443 | |
| #1 0x000000006e7c88fa in GC_apply_to_all_blocks ( | |
| fn=0x6e7d14e0 <GC_reclaim_block>, client_data=0) at headers.c:324 | |
| #2 0x000000006e7d1b55 in GC_start_reclaim ( | |
| report_if_found=report_if_found@entry=0) at reclaim.c:649 | |
| #3 0x000000006e7c2f1f in GC_finish_collection () at alloc.c:991 | |
| #4 0x000000006e7c9ddd in GC_generic_malloc_many (lb=lb@entry=160, | |
| k=k@entry=0, result=result@entry=0x2ecfb78) at mallocx.c:308 | |
| #5 0x0000000000402b0d in test_tinyfl () at tests/test.c:1029 | |
| #6 0x0000000000403044 in run_one_test () at tests/test.c:1252 | |
| #7 0x00000000004038f9 in thr_run_one_test (arg=arg@entry=0x0) | |
| at tests/test.c:1932 | |
| #8 0x000000006e7d37b3 in GC_win32_start_inner (sb=sb@entry=0x2ecff00, | |
| arg=0x520fc0) at win32_threads.c:2183 | |
| #9 0x000000006e7ce198 in GC_call_with_stack_base ( | |
| fn=fn@entry=0x6e7d3790 <GC_win32_start_inner>, arg=<optimized out>) | |
| at misc.c:1941 | |
| #10 0x000000006e7d2ff3 in GC_win32_start (arg=<optimized out>) | |
| at win32_threads.c:2201 | |
| #11 0x00007ffa8e3513d2 in KERNEL32!BaseThreadInitThunk () | |
| from C:\WINDOWS\system32\kernel32.dll | |
| #12 0x00007ffa8e8154e4 in ntdll!RtlUserThreadStart () | |
| from C:\WINDOWS\SYSTEM32\ntdll.dll | |
| #13 0x0000000000000000 in ?? () | |
| Backtrace stopped: previous frame inner to this frame (corrupt stack?) | |
| ``` | |
| (A2) I added options. (Next, I will change include/config.h.) | |
| GC: gc-7.7.0-01f83d4.zip and libatomic_ops-7.6.0.tar.gz | |
| - **testA:** | |
| ./autogen.sh | |
| ./configure --disable-parallel-mark --enable-gc-assertions --enable-threads=win32 --enable-large-config --disable-gcj-support CPPFLAGS="-DDONT_ADD_BYTE_AT_END " | |
| make check | |
| COUNT=0; while :; do ./gctest.exe; (( COUNT++ )); echo $COUNT; done | |
| **result:** | |
| TOTAL COUNT: 200 | |
| PASS: 65 | |
| FAIL(Segmentation fault): 135 | |
| - **testB:** | |
| libtool --mode=execute gdb gctest.exe | |
| Input 'r' command repeatedly until error occurs. | |
| **result:** | |
| ``` | |
| Thread 1 received signal SIGSEGV, Segmentation fault. | |
| GC_reclaim_block (hbp=0x4da000, report_if_found=0) at reclaim.c:443 | |
| 443 hhdr -> hb_next = *rlh; | |
| (gdb) p rlh | |
| $1 = (struct hblk **) 0x50 | |
| (gdb) p *rlh | |
| Cannot access memory at address 0x50 | |
| (gdb) bt | |
| #0 GC_reclaim_block (hbp=0x4da000, report_if_found=0) at reclaim.c:443 | |
| #1 0x000000006e7ca9ca in GC_apply_to_all_blocks ( | |
| fn=0x6e7d6940 <GC_reclaim_block>, client_data=0) at headers.c:324 | |
| #2 0x000000006e7d70f5 in GC_start_reclaim ( | |
| report_if_found=report_if_found@entry=0) at reclaim.c:649 | |
| #3 0x000000006e7c37af in GC_finish_collection () at alloc.c:991 | |
| #4 0x000000006e7ccadb in GC_generic_malloc_many (lb=lb@entry=16, | |
| k=k@entry=1, result=result@entry=0x23fb38) at mallocx.c:308 | |
| #5 0x0000000000402c84 in test_tinyfl () at tests/test.c:1030 | |
| #6 0x00000000004031b4 in run_one_test () at tests/test.c:1252 | |
| #7 0x0000000000403ea2 in WinMain (instance=<optimized out>, | |
| prev=prev@entry=0x0, cmd=<optimized out>, n=<optimized out>) | |
| at tests/test.c:2069 | |
| #8 0x0000000000405942 in main (flags=<optimized out>, | |
| cmdline=<optimized out>, inst=<optimized out>) | |
| at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crt0_c.c:18 | |
| #9 0x00000000004013f8 in __tmainCRTStartup () | |
| at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crtexe.c:334 | |
| #10 0x000000000040151b in mainCRTStartup () | |
| at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crtexe.c:212 | |
| ``` | |
| (A3) I changed include/config.h. | |
| GC: gc-7.7.0-01f83d4.zip and libatomic_ops-7.6.0.tar.gz | |
| - **testA:** | |
| ./autogen.sh | |
| ./configure --disable-parallel-mark --enable-gc-assertions --enable-threads=win32 --enable-large-config --disable-gcj-support CPPFLAGS="-DDONT_ADD_BYTE_AT_END " | |
| Edit include/config.h (comment out THREAD_LOCAL_ALLOC). | |
| make check | |
| COUNT=0; while :; do ./gctest.exe; (( COUNT++ )); echo $COUNT; done | |
| **result:** | |
| TOTAL COUNT: 200 | |
| PASS: 4 | |
| FAIL(Segmentation fault): 196 | |
| - **testB:** | |
| libtool --mode=execute gdb gctest.exe | |
| Input 'r' command repeatedly until error occurs. | |
| **result:** | |
| ``` | |
| Thread 4 received signal SIGSEGV, Segmentation fault. | |
| [Switching to Thread 6352.0x650] | |
| GC_reclaim_block (hbp=0x1fd0000, report_if_found=0) at reclaim.c:443 | |
| 443 hhdr -> hb_next = *rlh; | |
| (gdb) p rlh | |
| $1 = (struct hblk **) 0x50 | |
| (gdb) p *rlh | |
| Cannot access memory at address 0x50 | |
| (gdb) bt | |
| #0 GC_reclaim_block (hbp=0x1fd0000, report_if_found=0) at reclaim.c:443 | |
| #1 0x000000006e7ca90a in GC_apply_to_all_blocks ( | |
| fn=0x6e7d6850 <GC_reclaim_block>, client_data=0) at headers.c:324 | |
| #2 0x000000006e7d7005 in GC_start_reclaim ( | |
| report_if_found=report_if_found@entry=0) at reclaim.c:649 | |
| #3 0x000000006e7c36ef in GC_finish_collection () at alloc.c:991 | |
| #4 0x000000006e7cca2b in GC_generic_malloc_many (lb=lb@entry=16, | |
| k=k@entry=1, result=result@entry=0x25ffbf8) at mallocx.c:308 | |
| #5 0x0000000000402c84 in test_tinyfl () at tests/test.c:1030 | |
| #6 0x00000000004031b4 in run_one_test () at tests/test.c:1252 | |
| #7 0x0000000000403a69 in thr_run_one_test (arg=arg@entry=0x0) | |
| at tests/test.c:1932 | |
| #8 0x000000006e7d96d3 in GC_win32_start_inner (sb=sb@entry=0x25fff00, | |
| arg=0x1fc0fd0) at win32_threads.c:2183 | |
| #9 0x000000006e7d2488 in GC_call_with_stack_base ( | |
| fn=fn@entry=0x6e7d96b0 <GC_win32_start_inner>, arg=<optimized out>) | |
| at misc.c:1941 | |
| #10 0x000000006e7d8843 in GC_win32_start (arg=<optimized out>) | |
| at win32_threads.c:2201 | |
| #11 0x00007ffa8e3513d2 in KERNEL32!BaseThreadInitThunk () | |
| from C:\WINDOWS\system32\kernel32.dll | |
| #12 0x00007ffa8e8154e4 in ntdll!RtlUserThreadStart () | |
| from C:\WINDOWS\SYSTEM32\ntdll.dll | |
| #13 0x0000000000000000 in ?? () | |
| Backtrace stopped: previous frame inner to this frame (corrupt stack?) | |
| ``` | |
| (2017-6-16) |
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