diff --git a/External/FEXCore/Source/Interface/HLE/x64/Syscalls.cpp b/External/FEXCore/Source/Interface/HLE/x64/Syscalls.cpp
index ce7ed1400..fddf4ec24 100644
--- a/External/FEXCore/Source/Interface/HLE/x64/Syscalls.cpp
+++ b/External/FEXCore/Source/Interface/HLE/x64/Syscalls.cpp
@@ -220,6 +220,13 @@ void x64SyscallHandler::Strace(FEXCore::HLE::SyscallArguments *Args, uint64_t Re
     LogMan::Msg::D("munlockall(0x%lx) = %ld",
       Ret);
     break;
+  case SYSCALL_MSYNC:
+  LogMan::Msg::D("msync(%p, 0x%lx, 0x%lx) = %ld",
+      Args->Argument[1],
+      Args->Argument[2],
+      Args->Argument[3],
+      Ret);
+    break;
   case SYSCALL_PRCTL:
     LogMan::Msg::D("arch_prctl(%ld, %p, %p, %p, %p) = %ld",
       Args->Argument[1], Args->Argument[2],
@@ -763,6 +770,7 @@ void x64SyscallHandler::RegisterSyscallHandlers() {
     {SYSCALL_SELECT,                 cvt(&FEXCore::HLE::Select),                 5},
     {SYSCALL_SCHED_YIELD,            cvt(&FEXCore::HLE::Sched_Yield),            0},
     {SYSCALL_MREMAP,                 cvt(&FEXCore::HLE::Mremap),                 5},
+    {SYSCALL_MSYNC,                  cvt(&FEXCore::HLE::Msync),                  3},
     {SYSCALL_MINCORE,                cvt(&FEXCore::HLE::Mincore),                3},
     {SYSCALL_MADVISE,                cvt(&FEXCore::HLE::Madvise),                3},
     {SYSCALL_SHMGET,                 cvt(&FEXCore::HLE::Shmget),                 3},
diff --git a/unittests/POSIX/Disabled_Tests b/unittests/POSIX/Disabled_Tests
index b432100d7..6273c3723 100644
--- a/unittests/POSIX/Disabled_Tests
+++ b/unittests/POSIX/Disabled_Tests
@@ -187,5 +187,4 @@ conformance-interfaces-clock_nanosleep-1-3.test
 conformance-interfaces-clock_nanosleep-9-1.test
 conformance-behavior-WIFEXITED-1-2.test
 conformance-behavior-WIFEXITED-1-1.test
-conformance-behavior-WIFEXITED-1-3.test
-conformance-interfaces-sched_rr_get_interval-1-1.test
\ No newline at end of file
+conformance-behavior-WIFEXITED-1-3.test
\ No newline at end of file
diff --git a/unittests/POSIX/Known_Failures b/unittests/POSIX/Known_Failures
index a494384ae..a3af07fb1 100644
--- a/unittests/POSIX/Known_Failures
+++ b/unittests/POSIX/Known_Failures
@@ -13,13 +13,10 @@ conformance-interfaces-killpg-1-1.test
 conformance-interfaces-mlockall-8-1.test
 conformance-interfaces-mmap-11-2.test
 conformance-interfaces-mmap-14-1.test
-conformance-interfaces-mmap-7-1.test
-conformance-interfaces-mmap-7-2.test
 conformance-interfaces-munlockall-5-1.test
 conformance-interfaces-munmap-1-1.test
 conformance-interfaces-munmap-1-2.test
 conformance-interfaces-munmap-2-1.test
-conformance-interfaces-munmap-4-1.test
 conformance-interfaces-nanosleep-10000-1.test
 conformance-interfaces-nanosleep-5-1.test
 conformance-interfaces-nanosleep-6-1.test
@@ -29,7 +26,6 @@ conformance-interfaces-raise-2-1.test
 conformance-interfaces-raise-4-1.test
 conformance-interfaces-raise-6-1.test
 conformance-interfaces-raise-7-1.test
-conformance-interfaces-sched_rr_get_interval-1-1.test
 conformance-interfaces-sigaction-1-10.test
 conformance-interfaces-sigaction-1-11.test
 conformance-interfaces-sigaction-1-12.test