880870b41a
Close a potential race in reading the CPU dtrace flags, where a thread can start on one CPU, and partway through retrieving the flags be swapped out, while another thread traps and sets the CPU_DTRACE_NOFAULT. This could cause the first thread to return without handling the fault. Discussed with: markj@ |
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dtrace_asm.S | ||
dtrace_isa.c | ||
dtrace_subr.c | ||
regset.h |