thread_pthread.c (native_thread_destroy): clear native TSD pointer

mwrap <https://80x24.org/mwrap/> interposes malloc functions and
checks for GVL existence to determine Ruby source locations of
malloc calls.  pthread_getattr_np (from get_stack) may call
realloc to get the CPU set size; so when using the thread-cache,
ruby_thread_has_gvl_p() may hit a false positive on reused
threads with lingering rb_thread_t in thread-specific data.

This was causing mwrap to call rb_source_location_cstr() and
crash because it was pointed to a zero ec->cfp->iseq.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63836 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

0 files changed, 0 insertions, 0 deletions