diff --git a/src/core/libraries/kernel/memory_management.h b/src/core/libraries/kernel/memory_management.h
index 25a4a9f0..6735ead7 100644
--- a/src/core/libraries/kernel/memory_management.h
+++ b/src/core/libraries/kernel/memory_management.h
@@ -63,7 +63,7 @@ struct OrbisVirtualQueryInfo {
 
 struct OrbisKernelBatchMapEntry {
     void* start;
-    off_t offset;
+    size_t offset;
     size_t length;
     char protection;
     char type;
diff --git a/src/core/libraries/kernel/thread_management.cpp b/src/core/libraries/kernel/thread_management.cpp
index 48347ea5..6be90cce 100644
--- a/src/core/libraries/kernel/thread_management.cpp
+++ b/src/core/libraries/kernel/thread_management.cpp
@@ -1360,6 +1360,10 @@ int PS4_SYSV_ABI posix_sem_wait(sem_t* sem) {
     return sem_wait(sem);
 }
 
+int PS4_SYSV_ABI posix_sem_trywait(sem_t* sem) {
+    return sem_trywait(sem);
+}
+
 #ifndef HAVE_SEM_TIMEDWAIT
 int sem_timedwait(sem_t* sem, const struct timespec* abstime) {
     int rc;
@@ -1499,6 +1503,7 @@ void pthreadSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("WrOLvHU0yQM", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_setspecific);
     LIB_FUNCTION("4+h9EzwKF4I", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetschedpolicy);
     LIB_FUNCTION("-Wreprtu0Qs", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetdetachstate);
+    LIB_FUNCTION("JaRMy+QcpeU", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrGetdetachstate);
     LIB_FUNCTION("eXbUSpEaTsA", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetinheritsched);
     LIB_FUNCTION("DzES9hQF4f4", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrSetschedparam);
     LIB_FUNCTION("nsYoNRywwNg", "libkernel", 1, "libkernel", 1, 1, scePthreadAttrInit);
@@ -1611,6 +1616,7 @@ void pthreadSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("Xs9hdiD7sAA", "libScePosix", 1, "libkernel", 1, 1, posix_pthread_setschedparam);
     LIB_FUNCTION("pDuPEf3m4fI", "libScePosix", 1, "libkernel", 1, 1, posix_sem_init);
     LIB_FUNCTION("YCV5dGGBcCo", "libScePosix", 1, "libkernel", 1, 1, posix_sem_wait);
+    LIB_FUNCTION("WBWzsRifCEA", "libScePosix", 1, "libkernel", 1, 1, posix_sem_trywait);
     LIB_FUNCTION("w5IHyvahg-o", "libScePosix", 1, "libkernel", 1, 1, posix_sem_timedwait);
     LIB_FUNCTION("IKP8typ0QUk", "libScePosix", 1, "libkernel", 1, 1, posix_sem_post);
     LIB_FUNCTION("cDW233RAwWo", "libScePosix", 1, "libkernel", 1, 1, posix_sem_destroy);