diff options
Diffstat (limited to 'lib/librte_eal/common/eal_common_memory.c')
| -rw-r--r-- | lib/librte_eal/common/eal_common_memory.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/librte_eal/common/eal_common_memory.c b/lib/librte_eal/common/eal_common_memory.c index 999ba24b..e3ef3714 100644 --- a/lib/librte_eal/common/eal_common_memory.c +++ b/lib/librte_eal/common/eal_common_memory.c @@ -55,6 +55,7 @@ static uint64_t system_page_sz; static uint64_t baseaddr = 0x100000000; #endif +#define MAX_MMAP_WITH_DEFINED_ADDR_TRIES 5 void * eal_get_virtual_area(void *requested_addr, size_t *size, size_t page_sz, int flags, int mmap_flags) @@ -62,6 +63,7 @@ eal_get_virtual_area(void *requested_addr, size_t *size, bool addr_is_hint, allow_shrink, unmap, no_align; uint64_t map_sz; void *mapped_addr, *aligned_addr; + uint8_t try = 0; if (system_page_sz == 0) system_page_sz = sysconf(_SC_PAGESIZE); @@ -117,11 +119,14 @@ eal_get_virtual_area(void *requested_addr, size_t *size, if (mapped_addr != MAP_FAILED && addr_is_hint && mapped_addr != requested_addr) { - /* hint was not used. Try with another offset */ - munmap(mapped_addr, map_sz); - mapped_addr = MAP_FAILED; + try++; next_baseaddr = RTE_PTR_ADD(next_baseaddr, page_sz); - requested_addr = next_baseaddr; + if (try <= MAX_MMAP_WITH_DEFINED_ADDR_TRIES) { + /* hint was not used. Try with another offset */ + munmap(mapped_addr, map_sz); + mapped_addr = MAP_FAILED; + requested_addr = next_baseaddr; + } } } while ((allow_shrink || addr_is_hint) && mapped_addr == MAP_FAILED && *size > 0); |