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ivmai / bdwgc / 1500
77%

Build:
DEFAULT BRANCH: master
Ran 04 May 2023 07:07PM UTC
Jobs 1
Files 58
Run time 4s
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04 May 2023 07:07PM UTC coverage: 76.905% (+0.03%) from 76.871%
1500

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ivmai
Workaround a malfunction of soft-dirty bits clearing on Power9
(fix of commit c1bf1b973)

Issue #479 (bdwgc).

Make a page dirty twice in detect_soft_dirty_supported() clearing all
the soft-dirty bits in the middle.  If the 2nd write to a page is not
noticeable, then fallback to mprotect-based VDB.  This a workaround for
a bug observed, at least, in Fedora 36 kernel on Power9 CPU.

* os_dep.c [SOFT_VDB] (clear_soft_dirty_bits): New static function
(move part of code from GC_soft_read_dirty).
* os_dep.c [SOFT_VDB] (detect_soft_dirty_supported): Call
clear_soft_dirty_bits() and retry changing *vaddr to check whether the
latter is reflected in pagemap file; add comment.
* os_dep.c [SOFT_VDB] (GC_soft_read_dirty): Call clear_soft_dirty_bits.

17 of 17 new or added lines in 1 file covered. (100.0%)

7842 of 10197 relevant lines covered (76.9%)

8330324.06 hits per line

New Missed Lines in Diff

Lines Coverage ∆ File
2
43.53
0.86% os_dep.c

Uncovered Existing Lines

Lines Coverage ∆ File
1
74.67
0.03% tests/gctest.c
4
68.38
-0.61% finalize.c
49
75.04
-0.15% misc.c
129
78.82
0.74% alloc.c
145
43.53
0.86% os_dep.c
Jobs
ID Job ID Ran Files Coverage
5 1500.5 (CONF_OPTIONS="--enable-gcov --enable-single-obj-compilation --enable-cplusplus --disable-shared --enable-gc-assertions" CFLAGS_EXTRA="-D USE_CUSTOM_SPECIFIC" CC_FOR_CHECK=g++ MAKEFILE_TARGETS="all" MAKEFILE_TARGETS_CHECK="check" NO_CLONE_LIBATOMIC_OPS=true REPORT_COVERAGE=true TESTS_CUSTOM_RUN=true) 04 May 2023 07:07PM UTC 58
76.9
Travis Job 1500.5
Source Files on build 1500
  • Tree
  • List 58
  • Changed 36
  • Source Changed 4
  • Coverage Changed 36
Coverage ∆ File Lines Relevant Covered Missed Hits/Line
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