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Re:Compilers are hard by cperciva on Thursday January 21, 2021 @12:46AM (#25855900)
The bug shows up without asan. We literally tripped over it in production with code compiled with "clang -O2".
Re:Compilers are hard by drivebycomment on Thursday January 21, 2021 @12:53AM (#25855939)
Then I agree that this is surprising. That means clang/llvm is not modeling set/longjmp correctly in general and that is not acceptable as a C compiler.
Re:Compilers are hard by scatters on Thursday January 21, 2021 @03:51AM (#25856861)
That's apparent from your ticket (which is marked as a duplicate) but on the one you linked to, all the offending compiler lines contain asan. Is there a chance this is impacting prioritization?
Re:Compilers are hard by cperciva on Thursday January 21, 2021 @11:27AM (#25860641)
Could be. I'm not an LLVM developer so I don't know how they prioritize issues.