diff options
Diffstat (limited to 'usr/src/lib/libidmap/common/idmap_api.c')
| -rw-r--r-- | usr/src/lib/libidmap/common/idmap_api.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/usr/src/lib/libidmap/common/idmap_api.c b/usr/src/lib/libidmap/common/idmap_api.c index ef6079f0c0..69ed433d98 100644 --- a/usr/src/lib/libidmap/common/idmap_api.c +++ b/usr/src/lib/libidmap/common/idmap_api.c @@ -124,7 +124,7 @@ idmap_free(void *ptr) } -#define MIN_STACK_NEEDS 16384 +#define MIN_STACK_NEEDS 65536 /* * Create and Initialize idmap client handle for rpc/doors @@ -163,16 +163,19 @@ idmap_init(idmap_handle_t **handle) /* stack grows down */ sendsz = ((char *)&sendsz - (char *)st.ss_sp); - /* - * Take much of the stack space left, divided by two, - * but leave enough for our needs (just a guess!), and - * if we can't, then roll the dice. - */ - sendsz = RNDUP(sendsz / 2); - if (sendsz < MIN_STACK_NEEDS) + if (sendsz <= MIN_STACK_NEEDS) { sendsz = 0; /* RPC call may fail */ - else if (sendsz > IDMAP_MAX_DOOR_RPC) - sendsz = IDMAP_MAX_DOOR_RPC; + } else { + /* Leave 64Kb (just a guess) for our needs */ + sendsz -= MIN_STACK_NEEDS; + + /* Divide the stack space left by two */ + sendsz = RNDUP(sendsz / 2); + + /* Limit sendsz to 256KB */ + if (sendsz > IDMAP_MAX_DOOR_RPC) + sendsz = IDMAP_MAX_DOOR_RPC; + } } clnt = clnt_door_create(IDMAP_PROG, IDMAP_V1, sendsz); |