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Improve call counting mechanism - #32250
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kouvel
commented
Feb 13, 2020
ContributorAuthor
Got a consistent repro of the crash after a few hours of running a CoreFX test suite, verified no repro after fix after 12+ hours. Got one repro of the assertion failure, currently running again after fix, will continue running overnight. |
kouvel
commented
Feb 14, 2020
ContributorAuthor
No assertion failure after 12+ hours after fix. Rebased to fix conflicts. |
kouvel
commented
Feb 28, 2020
ContributorAuthor
Thanks @noahfalk! Rebased to latest to run through the checks again. |
kouvel
commented
Feb 28, 2020
ContributorAuthor
Failures are same as #32951 |
added 3 commits
March 2, 2020 11:21
- Commit 1 - Reverts commit f954c6b, which reverted PR #1457 due to issues - Commit 2 - Fixes crashes and assertion failures seen by the original change, fixes#29934 - The crashes were caused by commit 6aa3c70 in the original PR - Call counting infos cannot be deleted when the corresponding call counting stubs may still run, because: - The remaining call count decremented by the stub is in the call counting info - The only way to get a code version / method desc from a stub is to go through the call counting info - Got one repro of the assertion failure in #22786 and it is most likely caused by the same issue, following heap corruption from modifying a deleted call counting info where the memory is reused for a `NativeCodeVersionNode`, messing up the method desc pointer - Fixed with a partial revert of the above commit. Added back the `Complete` stage and then call counting infos are deleted only after it's ensured that call counting stubs won't be used (shortly before deleting them). - Commit 3 - Public static functions of `CallCountingManager` that may be called through the debugger may occur before static initialization, added a check for null as suggested in #29892
kouvel
commented
Mar 2, 2020
ContributorAuthor
Rebased to fix conflict |
gbalykov added a commit
to gbalykov/runtime
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Apr 4, 2020
Related to dotnet#32250
jkotas pushed a commit
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Apr 6, 2020
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Completestage and then call counting infos are deleted only after it's ensured that call counting stubs won't be used (shortly before deleting them).CallCountingManagerthat may be called through the debugger may occur before static initialization, added a check for null as suggested in Fix createdump DAC segfault #29892