f37202cbc0
This change adds a check to mm_trysemaphore() (the root implementation of both kmm_trysemaphore() and umm_trysemaphore()). It checks if the that task that is apparently executing is marked as RUNNING. If not, how could the non-running task be trying to get the MM semaphore? I think only in the exact scenario that Eunbong Song has described.
So I think the solution should provide the same protection as
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| .. | ||
| Make.defs | ||
| mm_addfreechunk.c | ||
| mm_brkaddr.c | ||
| mm_calloc.c | ||
| mm_extend.c | ||
| mm_free.c | ||
| mm_heapmember.c | ||
| mm_initialize.c | ||
| mm_mallinfo.c | ||
| mm_malloc.c | ||
| mm_memalign.c | ||
| mm_realloc.c | ||
| mm_sbrk.c | ||
| mm_sem.c | ||
| mm_shrinkchunk.c | ||
| mm_size2ndx.c | ||
| mm_zalloc.c | ||