diff options
Diffstat (limited to 'erts/emulator/sys/common')
| -rw-r--r-- | erts/emulator/sys/common/erl_check_io.c | 2 | ||||
| -rw-r--r-- | erts/emulator/sys/common/erl_mseg.c | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c index 00c70268df..b6d71b3ec5 100644 --- a/erts/emulator/sys/common/erl_check_io.c +++ b/erts/emulator/sys/common/erl_check_io.c @@ -2306,7 +2306,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) case ERTS_EV_TYPE_NIF: { /* Requested via enif_select()... */ struct erts_nif_select_event in = {NIL}; struct erts_nif_select_event out = {NIL}; - ErtsResource* resource; + ErtsResource* resource = NULL; ErtsPollEvents revents = pollres[i].events; if (revents & ERTS_POLL_EV_ERR) { diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c index 1e05fd3490..d1895f3793 100644 --- a/erts/emulator/sys/common/erl_mseg.c +++ b/erts/emulator/sys/common/erl_mseg.c @@ -87,6 +87,7 @@ static const int debruijn[32] = { #define CACHE_AREAS (32 - MSEG_ALIGN_BITS) +/* FIXME: segment sizes > 2 GB result in bogus negative indices */ #define SIZE_TO_CACHE_AREA_IDX(S) (LOG2((S)) - MSEG_ALIGN_BITS) #define MAX_CACHE_SIZE (30) @@ -396,6 +397,9 @@ static ERTS_INLINE int cache_bless_segment(ErtsMsegAllctr_t *ma, void *seg, UWor if (MSEG_FLG_IS_2POW(flags)) { int ix = SIZE_TO_CACHE_AREA_IDX(size); + if (ix < 0) + return 0; + ASSERT(ix < CACHE_AREAS); ASSERT((1 << (ix + MSEG_ALIGN_BITS)) == size); @@ -471,6 +475,9 @@ static ERTS_INLINE void *cache_get_segment(ErtsMsegAllctr_t *ma, UWord *size_p, ASSERT(IS_2POW(size)); + if (ix < 0) + return NULL; + for( i = ix; i < CACHE_AREAS; i++) { if (erts_circleq_is_empty(&(ma->cache_powered_node[i]))) |