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notify_all_at_thread_exit seg faults if run from a raw pthread context. #29557

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llvmbot opened this issue Aug 30, 2016 · 3 comments
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notify_all_at_thread_exit seg faults if run from a raw pthread context. #29557

llvmbot opened this issue Aug 30, 2016 · 3 comments
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bugzilla Issues migrated from bugzilla libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.

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llvmbot commented Aug 30, 2016

Bugzilla Link 30202
Resolution FIXED
Resolved on Sep 03, 2016 03:08
Version unspecified
OS Linux
Reporter LLVM Bugzilla Contributor
CC @mclow

Extended Description

std::thread's ctor allocates a __thread_struct, and stuffs it in a thread local variable. std::notify_all_at_thread_exit tries to use that __thread_struct.

If a thread is created with pthread_create instead of std::thread, then the __thread_struct never gets allocated, and std::notify_all_at_thread_exit seg faults.
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llvmbot commented Sep 1, 2016

Potential fix up for review as https://reviews.llvm.org/D24159.

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llvmbot commented Sep 2, 2016

Potential fix up for review as https://reviews.llvm.org/D24159.

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llvmbot commented Sep 3, 2016

r280588.

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 10, 2021
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bugzilla Issues migrated from bugzilla libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.
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