diff --git a/apps/shell/src/shmsg.c b/apps/shell/src/shmsg.c
index 37cd32ef3b645d9aafbfbfd1aa6f4290902d1bb8..40a18d7ce6c3238d91365d79fa8cd222246395ed 100644
--- a/apps/shell/src/shmsg.c
+++ b/apps/shell/src/shmsg.c
@@ -364,11 +364,13 @@ void ChildExec(const char *cmdName, char *const paramArray[])
     gid = getpgrp();
     if (gid < 0) {
         printf("get group id failed, pgrpid %d, errno %d\n", gid, errno);
+        exit(1);
     }
 
     ret = tcsetpgrp(STDIN_FILENO, gid);
     if (ret != 0) {
         printf("tcsetpgrp failed, errno %d\n", errno);
+        exit(1);
     }
 
     ret = execve(cmdName, paramArray, NULL);
diff --git a/compat/posix/src/misc.c b/compat/posix/src/misc.c
index 3950d95c9e00ec5cf4148f41acb18da2b635a664..d3ae7e4d66d0b15319eb17a8a7afcecdee18f27f 100644
--- a/compat/posix/src/misc.c
+++ b/compat/posix/src/misc.c
@@ -40,7 +40,6 @@
 #include "los_process_pri.h"
 #include "los_hw.h"
 
-static struct rlimit g_defaultLimit = { 0 };
 /*
  * Supply some suitable values for constants that may not be present
  * in all configurations.
@@ -168,7 +167,10 @@ int getrlimit(int resource, struct rlimit *rlim)
     }
 
     if (resourceLimit == NULL) {
-        resourceLimit = &g_defaultLimit;
+        rlim->rlim_cur = 0;
+        rlim->rlim_max = 0;
+
+        return 0;
     }
 
     SCHEDULER_LOCK(intSave);
diff --git a/kernel/extended/hidumper/los_hidumper.c b/kernel/extended/hidumper/los_hidumper.c
index be365ecd38a7a1fb952d5e90777bf22d083bb3e6..ce86ec8aaa88660e8e941113cd5d0c2106a06219 100644
--- a/kernel/extended/hidumper/los_hidumper.c
+++ b/kernel/extended/hidumper/los_hidumper.c
@@ -319,7 +319,7 @@ static INT32 HiDumperIoctl(struct file *filep, INT32 cmd, unsigned long arg)
             break;
         case HIDUMPER_MEM_DATA:
             if (g_adapter.DumpMemData != NULL) {
-                g_adapter.DumpMemData((struct MemDumpParam *)arg);
+                g_adapter.DumpMemData((struct MemDumpParam *)((UINTPTR)arg));
             }
             break;
         default:
diff --git a/syscall/fs_syscall.c b/syscall/fs_syscall.c
index ba787462fb4ed4611e7a1ebb9323c5dc3073e403..da90e29357326e6cd148fe6e6d4f384ab0573382 100755
--- a/syscall/fs_syscall.c
+++ b/syscall/fs_syscall.c
@@ -2570,7 +2570,7 @@ int SysPselect6(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
     ((struct timeval *)timeout)->tv_usec = timeout->tv_nsec / 1000; /* 1000, convert ns to us */
 
     if (data != NULL) {
-        retVal = LOS_ArchCopyFromUser(&(setl.sig[0]), (int *)data[0], sizeof(sigset_t));
+        retVal = LOS_ArchCopyFromUser(&(setl.sig[0]), (int *)((UINTPTR)data[0]), sizeof(sigset_t));
         if (retVal != 0) {
             ret = -EFAULT;
             FREE_DUP(timeout);