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fix segfault when CILK_ALERT=memory (and that alert is enabled)#39

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kyle-singer merged 1 commit intoOpenCilk:devfrom
kyle-singer:fix-memory-alert-on-start
Jan 15, 2025
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fix segfault when CILK_ALERT=memory (and that alert is enabled)#39
kyle-singer merged 1 commit intoOpenCilk:devfrom
kyle-singer:fix-memory-alert-on-start

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@kyle-singer kyle-singer commented Dec 16, 2024

In the constructor function in init.c, __default_cilkrts_startup -> __cilkrts_startup -> Closure_create, the runtime currently segfaults when CILK_ALERT=memory because all worker local states are assumed to be valid if the worker pointer itself is valid when cheetah is dumping memory stats. At this point in the code, however, only worker 0 has a valid local_state pointer.

@kyle-singer kyle-singer force-pushed the fix-memory-alert-on-start branch from d617409 to b2c3b88 Compare January 13, 2025 19:23
@kyle-singer kyle-singer force-pushed the fix-memory-alert-on-start branch from b2c3b88 to 88d307e Compare January 13, 2025 19:24
@kyle-singer kyle-singer merged commit 3062cd3 into OpenCilk:dev Jan 15, 2025
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neboat pushed a commit that referenced this pull request May 8, 2025
…ug.h) (#39)

Co-authored-by: Kyle Singer <kdsinger@mit.edu>
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