Bug #15263
[PATCH] vm_trace.c (postponed_job_register): only hit main thread
Description
vm_trace.c (postponed_job_register): only hit main thread Since postponed_job_register may be called in a signal handler, only the main thread is safe to touch as other threads may become invalid. Furthermore, the problem with trap interrupt being lost during ec_switch [Bug #14939] also applies to the postponed job and timer interrupts, so we need to preserve all three interrupts in ec_switch. Note: A minor problem is a possible crash during/after ruby_vm_destruct if postponed jobs are registered. The correct and performant fix would be to leak memory at exit for `vm' and `vm->main_thread'. free(3) slows down short-lived scripts, as does unregistering signal handlers. * vm_trace.c (postponed_job_register): only hit main thread * cont.c (ec_switch): preserve postponed and timer interrupt flags, too
Files
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