X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/d298825803ee32513ad08f415a93f7f0a7c362c2..8520066d7b4782adaf9caa56036071ddb3de86fc:/src/redis.c

diff --git a/src/redis.c b/src/redis.c
index 86cf0d95..e2f9024b 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -62,9 +62,6 @@ double R_Zero, R_PosInf, R_NegInf, R_Nan;
 
 /*================================= Globals ================================= */
 
-/* Alternate stack for SIGSEGV/etc handlers */
-char altstack[SIGSTKSZ];
-
 /* Global vars */
 struct redisServer server; /* server global state */
 struct redisCommand *commandTable;
@@ -1135,7 +1132,6 @@ void adjustOpenFilesLimit(void) {
     rlim_t maxfiles = server.maxclients+32;
     struct rlimit limit;
 
-    if (maxfiles < 1024) maxfiles = 1024;
     if (getrlimit(RLIMIT_NOFILE,&limit) == -1) {
         redisLog(REDIS_WARNING,"Unable to obtain the current NOFILE limit (%s), assuming 1024 and setting the max clients configuration accordingly.",
             strerror(errno));
@@ -1558,7 +1554,7 @@ int processCommand(redisClient *c) {
 
     /* Lua script too slow? Only allow SHUTDOWN NOSAVE and SCRIPT KILL. */
     if (server.lua_timedout &&
-        !(c->cmd->proc != shutdownCommand &&
+        !(c->cmd->proc == shutdownCommand &&
           c->argc == 2 &&
           tolower(((char*)c->argv[1]->ptr)[0]) == 'n') &&
         !(c->cmd->proc == scriptCommand &&
@@ -2301,13 +2297,6 @@ static void sigtermHandler(int sig) {
 
 void setupSignalHandlers(void) {
     struct sigaction act;
-    stack_t stack;
-
-    stack.ss_sp = altstack;
-    stack.ss_flags = 0;
-    stack.ss_size = SIGSTKSZ;
-
-    sigaltstack(&stack, NULL);
 
     /* When the SA_SIGINFO flag is set in sa_flags then sa_sigaction is used.
      * Otherwise, sa_handler is used. */
@@ -2317,10 +2306,8 @@ void setupSignalHandlers(void) {
     sigaction(SIGTERM, &act, NULL);
 
 #ifdef HAVE_BACKTRACE
-    /* Use alternate stack so we don't clobber stack in case of segv, or when we run out of stack ..
-     * also resethand & nodefer so we can get interrupted (and killed) if we cause SEGV during SEGV handler */
     sigemptyset(&act.sa_mask);
-    act.sa_flags = SA_NODEFER | SA_ONSTACK | SA_RESETHAND | SA_SIGINFO;
+    act.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
     act.sa_sigaction = sigsegvHandler;
     sigaction(SIGSEGV, &act, NULL);
     sigaction(SIGBUS, &act, NULL);