diff --git a/src/core/libraries/kernel/file_system.cpp b/src/core/libraries/kernel/file_system.cpp
index 7f86ee54..e6b657c3 100644
--- a/src/core/libraries/kernel/file_system.cpp
+++ b/src/core/libraries/kernel/file_system.cpp
@@ -237,7 +237,7 @@ s64 PS4_SYSV_ABI sceKernelLseek(int d, s64 offset, int whence) {
 }
 
 s64 PS4_SYSV_ABI posix_lseek(int d, s64 offset, int whence) {
-    int result = sceKernelLseek(d, offset, whence);
+    s64 result = sceKernelLseek(d, offset, whence);
     if (result < 0) {
         LOG_ERROR(Kernel_Pthread, "posix_lseek: error = {}", result);
         ErrSceToPosix(result);
@@ -490,6 +490,16 @@ s32 PS4_SYSV_ABI sceKernelFsync(int fd) {
     return ORBIS_OK;
 }
 
+s32 PS4_SYSV_ABI posix_fsync(int fd) {
+    s32 result = sceKernelFsync(fd);
+    if (result < 0) {
+        LOG_ERROR(Kernel_Pthread, "posix_fstat: error = {}", result);
+        ErrSceToPosix(result);
+        return -1;
+    }
+    return result;
+}
+
 int PS4_SYSV_ABI sceKernelFtruncate(int fd, s64 length) {
     auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
     auto* file = h->GetFile(fd);
@@ -642,6 +652,8 @@ void fileSystemSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("+r3rMFwItV4", "libkernel", 1, "libkernel", 1, 1, sceKernelPread);
     LIB_FUNCTION("uWyW3v98sU4", "libkernel", 1, "libkernel", 1, 1, sceKernelCheckReachability);
     LIB_FUNCTION("fTx66l5iWIA", "libkernel", 1, "libkernel", 1, 1, sceKernelFsync);
+    LIB_FUNCTION("juWbTNM+8hw", "libkernel", 1, "libkernel", 1, 1, posix_fsync);
+    LIB_FUNCTION("juWbTNM+8hw", "libScePosix", 1, "libkernel", 1, 1, posix_fsync);
     LIB_FUNCTION("j2AIqSqJP0w", "libkernel", 1, "libkernel", 1, 1, sceKernelGetdents);
     LIB_FUNCTION("taRWhTJFTgE", "libkernel", 1, "libkernel", 1, 1, sceKernelGetdirentries);
     LIB_FUNCTION("nKWi-N2HBV4", "libkernel", 1, "libkernel", 1, 1, sceKernelPwrite);
diff --git a/src/core/libraries/kernel/libkernel.cpp b/src/core/libraries/kernel/libkernel.cpp
index c621b4bc..b3eb81ec 100644
--- a/src/core/libraries/kernel/libkernel.cpp
+++ b/src/core/libraries/kernel/libkernel.cpp
@@ -491,6 +491,7 @@ void LibKernel_Register(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("-o5uEDpN+oY", "libkernel", 1, "libkernel", 1, 1, sceKernelConvertUtcToLocaltime);
     LIB_FUNCTION("WB66evu8bsU", "libkernel", 1, "libkernel", 1, 1, sceKernelGetCompiledSdkVersion);
     LIB_FUNCTION("DRuBt2pvICk", "libkernel", 1, "libkernel", 1, 1, ps4__read);
+    LIB_FUNCTION("k+AXqu2-eBc", "libkernel", 1, "libkernel", 1, 1, posix_getpagesize);
     LIB_FUNCTION("k+AXqu2-eBc", "libScePosix", 1, "libkernel", 1, 1, posix_getpagesize);
 
     Libraries::Kernel::fileSystemSymbolsRegister(sym);
diff --git a/src/core/libraries/kernel/thread_management.cpp b/src/core/libraries/kernel/thread_management.cpp
index 39c0eaf8..85f61809 100644
--- a/src/core/libraries/kernel/thread_management.cpp
+++ b/src/core/libraries/kernel/thread_management.cpp
@@ -477,6 +477,10 @@ int PS4_SYSV_ABI scePthreadMutexDestroy(ScePthreadMutex* mutex) {
         return SCE_KERNEL_ERROR_EINVAL;
     }
 
+    if (*mutex == ORBIS_PTHREAD_MUTEX_ADAPTIVE_INITIALIZER) {
+        return ORBIS_OK;
+    }
+
     int result = pthread_mutex_destroy(&(*mutex)->pth_mutex);
 
     LOG_DEBUG(Kernel_Pthread, "name={}, result={}", (*mutex)->name, result);
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 031b7b13..61eb421e 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -514,7 +514,8 @@ int MemoryManager::VirtualQuery(VAddr addr, int flags,
     info->is_direct.Assign(vma.type == VMAType::Direct);
     info->is_stack.Assign(vma.type == VMAType::Stack);
     info->is_pooled.Assign(vma.type == VMAType::Pooled);
-    info->is_committed.Assign(vma.type != VMAType::Free && vma.type != VMAType::Reserved);
+    info->is_committed.Assign(vma.type != VMAType::Free && vma.type != VMAType::Reserved &&
+                              vma.type != VMAType::PoolReserved);
     vma.name.copy(info->name.data(), std::min(info->name.size(), vma.name.size()));
     if (vma.type == VMAType::Direct) {
         const auto dmem_it = FindDmemArea(vma.phys_base);