diff --git a/Source/Async/WorkItem.cpp b/Source/Async/WorkItem.cpp
index 7123e8e6..1be045ee 100644
--- a/Source/Async/WorkItem.cpp
+++ b/Source/Async/WorkItem.cpp
@@ -66,7 +66,7 @@ namespace Aurora::Async
                 return AU_SHARED_FROM_THIS;
             }
 
-            if (!AuTryInsert(this->waitOn_, workItem))
+            if (!AuTryInsert(this->waitOn_, AuConstReference(workItem)))
             {
                 AuTryRemove(dependency->waiters_, AuSharedFromThis());
                 Fail();
@@ -100,7 +100,7 @@ namespace Aurora::Async
                 return false;
             }
 
-            if (!AuTryInsert(this->waitOn_, workItem))
+            if (!AuTryInsert(this->waitOn_, AuConstReference(workItem)))
             {
                 AuTryRemove(dependency->waiters_, AuSharedFromThis());
                 return false;
diff --git a/Source/IO/AuIOPipeProcessor.cpp b/Source/IO/AuIOPipeProcessor.cpp
index 447a1aed..839b6465 100644
--- a/Source/IO/AuIOPipeProcessor.cpp
+++ b/Source/IO/AuIOPipeProcessor.cpp
@@ -134,6 +134,10 @@ namespace Aurora::IO
                     return false;
                 }
             }
+            else
+            {
+                return false;
+            }
         }
         else
         {
diff --git a/Source/IO/FS/Async.Linux.cpp b/Source/IO/FS/Async.Linux.cpp
index 98a8cc7b..4fc7997b 100644
--- a/Source/IO/FS/Async.Linux.cpp
+++ b/Source/IO/FS/Async.Linux.cpp
@@ -268,8 +268,7 @@ namespace Aurora::IO::FS
             return false;
         }
         this->pHandle_ = handle;
-        this->loopSource_ = AuMakeShared<LinuxAsyncFileTransactionLoopSource>(AuSharedFromThis());
-        return bool(this->loopSource_);
+        return true;//bool(this->loopSource_);
     }
 
     void LinuxAsyncFileTransaction::SetBaseOffset(AuUInt64 uBaseOffset)
@@ -285,6 +284,11 @@ namespace Aurora::IO::FS
             return false;
         }
 
+        if (!this->pHandle_)
+        {
+            return false;
+        }
+
         auto iOptSafe = this->pHandle_->GetOSReadHandleSafe();
         if (!iOptSafe)
         {
@@ -303,13 +307,21 @@ namespace Aurora::IO::FS
         this->bTxFinished_ = false;
         this->lastFinishedStat_ = 0;
 
-        if (!this->loopSource_)
+        if (!this->pCompletionGroup_ && !this->loopSource_)
+        {
+            this->loopSource_ = AuMakeShared<LinuxAsyncFileTransactionLoopSource>(AuSharedFromThis());
+        }
+
+        if (!this->pCompletionGroup_ && !this->loopSource_)
         {
             SysPushErrorUninitialized();
             return false;
         }
 
-        this->loopSource_->Reset();
+        if (this->loopSource_)
+        {
+            this->loopSource_->Reset();
+        }
         
         this->lastAbstractOffset_ = offset;
 
@@ -334,7 +346,7 @@ namespace Aurora::IO::FS
 
         offset += this->uBaseOffset;
         
-        if (!UNIX::LinuxOverlappedSubmitRead(fd, offset, this, this->loopSource_.get(), bool(IPC_PIPE)))
+        if (!UNIX::LinuxOverlappedSubmitRead(fd, offset, this, this->pCompletionGroup_ ? this->pAltEvent : this->loopSource_.get(), bool(IPC_PIPE)))
         {
             LIOS_SendProcess(0, true, errno);
             return true;
@@ -358,6 +370,11 @@ namespace Aurora::IO::FS
             return false;
         }
 
+        if (!this->pHandle_)
+        {
+            return false;
+        }
+
         auto iOptSafe = this->pHandle_->GetOSWriteHandleSafe();
         if (!iOptSafe)
         {
@@ -376,13 +393,21 @@ namespace Aurora::IO::FS
         this->hasError_ = false;
         this->lastFinishedStat_ = 0;
 
-        if (!this->loopSource_)
+        if (!this->pCompletionGroup_ && !this->loopSource_)
+        {
+            this->loopSource_ = AuMakeShared<LinuxAsyncFileTransactionLoopSource>(AuSharedFromThis());
+        }
+
+        if (!this->pCompletionGroup_ && !this->loopSource_)
         {
             SysPushErrorUninitialized();
             return false;
         }
 
-        this->loopSource_->Reset();
+        if (this->loopSource_)
+        {
+            this->loopSource_->Reset();
+        }
         
         this->lastAbstractOffset_ = offset;
 
@@ -398,7 +423,7 @@ namespace Aurora::IO::FS
 
         offset += this->uBaseOffset;
 
-        if (!UNIX::LinuxOverlappedSubmitWrite(fd, offset, this, this->loopSource_.get()))
+        if (!UNIX::LinuxOverlappedSubmitWrite(fd, offset, this, this->pCompletionGroup_ ? this->pAltEvent : this->loopSource_.get()))
         {
             LIOS_SendProcess(0, true, errno);
             return false;
@@ -424,6 +449,44 @@ namespace Aurora::IO::FS
         }
     }
 
+    bool LinuxAsyncFileTransaction::TryAttachToCompletionGroup(const AuSPtr<CompletionGroup::ICompletionGroup> &pCompletionGroup)
+    {
+        if (!pCompletionGroup)
+        {
+            return false;
+        }
+
+        auto pLoopSource = pCompletionGroup->GetTriggerLoopSource();
+        if (!pLoopSource)
+        {
+            return false;
+        }
+
+        pCompletionGroup->AddWorkItem(this->SharedFromThis());
+        this->pAltEvent = AuStaticCast<Loop::LSEvent>(pLoopSource).get();
+        return true;
+    }
+
+    CompletionGroup::ICompletionGroupWorkHandle *LinuxAsyncFileTransaction::ToCompletionGroupHandle()
+    {
+        return this;
+    }
+
+    AuSPtr<CompletionGroup::ICompletionGroup> LinuxAsyncFileTransaction::GetCompletionGroup()
+    {
+        return this->pCompletionGroup_;
+    }
+    
+    bool LinuxAsyncFileTransaction::HasCompletedForGCWI()
+    {
+        return this->HasCompleted();
+    }
+
+    void LinuxAsyncFileTransaction::CleanupForGCWI()
+    {
+        AuResetMember(this->pCompletionGroup_);
+    }
+
     void LinuxAsyncFileTransaction::LIOS_Process(AuUInt32 read, bool failure, int err, bool mark)
     {
         this->lastFinishedStat_ = failure ? 0 : read;
@@ -518,7 +581,14 @@ namespace Aurora::IO::FS
 
     AuSPtr<Loop::ILoopSource> LinuxAsyncFileTransaction::NewLoopSource()
     {
-        return AuStaticCast<Loop::ILoopSource>(AuStaticCast<Loop::ILSEvent>(this->loopSource_));
+        if (this->pCompletionGroup_)
+        {
+            return this->pCompletionGroup_->ToAnyLoopSource();
+        }
+        else
+        {
+            return AuStaticCast<Loop::ILoopSource>(AuStaticCast<Loop::ILSEvent>(this->loopSource_));
+        }
     }
 
     AUKN_SYM IAsyncFileStream *OpenAsyncNew(const AuString &path, EFileOpenMode openMode, bool bDirectIO, EFileAdvisoryLockLevel lock)
diff --git a/Source/IO/FS/Async.Linux.hpp b/Source/IO/FS/Async.Linux.hpp
index 2cf598b4..afb3c7fc 100644
--- a/Source/IO/FS/Async.Linux.hpp
+++ b/Source/IO/FS/Async.Linux.hpp
@@ -44,7 +44,10 @@ namespace Aurora::IO::FS
     };
 
 
-    struct LinuxAsyncFileTransaction : IAsyncTransaction, AuEnableSharedFromThis<LinuxAsyncFileTransaction>, Aurora::IO::UNIX::ASubmittable
+    struct LinuxAsyncFileTransaction : IAsyncTransaction,
+        CompletionGroup::ICompletionGroupWorkItem,
+        AuEnableSharedFromThis<LinuxAsyncFileTransaction>,
+        Aurora::IO::UNIX::ASubmittable
     {
         LinuxAsyncFileTransaction(AuSPtr<ProcessBlock> pProcessBlock);
         ~LinuxAsyncFileTransaction();
@@ -75,7 +78,16 @@ namespace Aurora::IO::FS
 
         void SetBaseOffset(AuUInt64 uBaseOffset) override;
 
-        virtual void LIOS_Process(AuUInt32 read, bool failure, int err, bool mark) override;
+        void LIOS_Process(AuUInt32 read, bool failure, int err, bool mark) override;
+        
+        bool TryAttachToCompletionGroup(const AuSPtr<CompletionGroup::ICompletionGroup> &pCompletionGroup) override;
+        
+        CompletionGroup::ICompletionGroupWorkHandle *ToCompletionGroupHandle() override;
+
+        AuSPtr<CompletionGroup::ICompletionGroup> GetCompletionGroup() override;
+        
+        bool HasCompletedForGCWI() override;
+        void CleanupForGCWI() override;
 
         AuSPtr<ProcessBlock> pProcessBlock_;
     private:
@@ -85,9 +97,11 @@ namespace Aurora::IO::FS
         AuUInt64 uBaseOffset {};
         bool latch_ {};
         bool bTxFinished_ {};
+        AuSPtr<CompletionGroup::ICompletionGroup> pCompletionGroup_;
         AuSPtr<IAsyncFinishedSubscriber> sub_;
         AuSPtr<LinuxAsyncFileTransactionLoopSource> loopSource_;
         int error_ {};
         bool hasError_ {};
+        Loop::ILSEvent *pAltEvent {};
     };
 }
\ No newline at end of file
diff --git a/Source/IO/FS/FSPlatformDevices.Linux.cpp b/Source/IO/FS/FSPlatformDevices.Linux.cpp
new file mode 100644
index 00000000..9ef8d464
--- /dev/null
+++ b/Source/IO/FS/FSPlatformDevices.Linux.cpp
@@ -0,0 +1,78 @@
+/***
+    Copyright (C) 2023 Jamie Reece Wilson (a/k/a "Reece"). All rights reserved.
+
+    File: FSPlatformDevices.Linux.cpp
+    Date: 2023-08-11
+    Date: 2024-02-XX
+    Author: Reece
+***/
+// TODO: recover work in progress work dated last year
+#include <Source/RuntimeInternal.hpp>
+#include "FS.hpp"
+#include "FSPlatformDevices.hpp"
+
+namespace Aurora::IO::FS
+{
+    AUKN_SYM AuString GetRootFromPath(const AuString &path)
+    {
+        return {};
+    }
+
+    AUKN_SYM AuResult<AuString> GetDeviceFromPath(const AuString &path)
+    {
+        return {};
+    }
+
+    AUKN_SYM AuResult<AuString> GetLogicalMountFromPath(const AuString &fileOrDirPath)
+    {
+        return {};
+    }
+
+    AUKN_SYM AuResult<AuString> GetDeviceFromRoot(const AuString &root)
+    {
+        return {};
+    }
+
+    AUKN_SYM AuUInt32 GetLogicalSectorSizeFromPath(const AuString &path)
+    {
+        return 0;
+    }
+
+    AUKN_SYM LogicalUsedResponse GetLogicalUsedFromLogicalDevice(const AuString &logicalMountPath)
+    {
+        return {};
+    }
+
+    AUKN_SYM AuUInt64 GetDeviceSizeInBytes(const AuString &physicalDevicePath)
+    {
+        return 0;
+    }
+
+    AUKN_SYM AuUInt32 GetPhysicalSectorSizeFromPath(const AuString &path)
+    {
+        return 0;
+    }
+
+    AuList<FSDevice> SysGetFSDevices()
+    {
+        AuList<FSDevice> devices;
+
+       return devices;
+    }
+
+    AUKN_SYM AuUInt32 GetPerformanceBufferSizeFromPath(const AuString &path)
+    {
+        return 4096;
+    }
+
+    AUKN_SYM LogicalUsedResponse GetLogicalUsedFromPath(const AuString &path)
+    {
+        auto rootPath = GetLogicalMountFromPath(path);
+        if (!rootPath)
+        {
+            return {};
+        }
+
+        return GetLogicalUsedFromLogicalDevice(rootPath.GetResult());
+    }
+}
\ No newline at end of file
diff --git a/Source/IO/Loop/LoopQueue.Linux.cpp b/Source/IO/Loop/LoopQueue.Linux.cpp
index f3dd114a..203ea015 100644
--- a/Source/IO/Loop/LoopQueue.Linux.cpp
+++ b/Source/IO/Loop/LoopQueue.Linux.cpp
@@ -229,7 +229,7 @@ namespace Aurora::IO::Loop
                 src->timeoutAbs = (AuUInt64)ms + AuTime::SteadyClockMS();
             }
 
-            if (!AuTryInsert(this->sources_, src))
+            if (!AuTryInsert(this->sources_, AuConstReference(src)))
             {
                 pWaitable->Unlock();
                 return false;
diff --git a/Source/IO/Net/AuNetSrvWorkers.cpp b/Source/IO/Net/AuNetSrvWorkers.cpp
index c82f0fe7..ae044fca 100644
--- a/Source/IO/Net/AuNetSrvWorkers.cpp
+++ b/Source/IO/Net/AuNetSrvWorkers.cpp
@@ -28,7 +28,7 @@ namespace Aurora::IO::Net
             return {};
         }
 
-        if (!AuTryInsert(this->workerPool_, worker))
+        if (!AuTryInsert(this->workerPool_, AuConstReference(worker)))
         {
             SysPushErrorIO("");
             return {};
diff --git a/Source/IO/Net/AuNetStream.Linux.cpp b/Source/IO/Net/AuNetStream.Linux.cpp
index 84099a02..f87674bb 100644
--- a/Source/IO/Net/AuNetStream.Linux.cpp
+++ b/Source/IO/Net/AuNetStream.Linux.cpp
@@ -77,11 +77,15 @@ namespace Aurora::IO::Net
         {
             AuLoop::ILSEvent *optEvent {};
 
-            if (auto pLoopSource = this->pCompletionGroup_->GetTriggerLoopSource())
+            if (this->pCompletionGroup_)
             {
-                optEvent = AuStaticCast<Loop::LSEvent>(pLoopSource).get();
+                if (auto pLoopSource = this->pCompletionGroup_->GetTriggerLoopSource())
+                {
+                    optEvent = AuStaticCast<Loop::LSEvent>(pLoopSource).get();
+                }
             }
-            else
+
+            if (!optEvent)
             {
                 if (auto pWaitable = this->pWaitable)
                 {
@@ -89,7 +93,7 @@ namespace Aurora::IO::Net
                 }
             }
 
-            if (!UNIX::LinuxOverlappedSubmitRead(this->GetSocket(), 0, this, optEvent))
+            if (!UNIX::LinuxOverlappedSubmitRead(this->GetSocket(), 0, this, optEvent, true))
             {
                 LIOS_SendProcess(0, true, errno);
                 return true;
@@ -159,11 +163,15 @@ namespace Aurora::IO::Net
         {
             AuLoop::ILSEvent *optEvent {};
 
-            if (auto pLoopSource = this->pCompletionGroup_->GetTriggerLoopSource())
+            if (this->pCompletionGroup_)
             {
-                optEvent = AuStaticCast<Loop::LSEvent>(pLoopSource).get();
+                if (auto pLoopSource = this->pCompletionGroup_->GetTriggerLoopSource())
+                {
+                    optEvent = AuStaticCast<Loop::LSEvent>(pLoopSource).get();
+                }
             }
-            else
+
+            if (!optEvent)
             {
                 if (auto pWaitable = this->pWaitable)
                 {
@@ -323,16 +331,21 @@ namespace Aurora::IO::Net
     {
         AuLoop::ILSEvent *optEvent {};
 
-        if (auto pLoopSource = this->pCompletionGroup_->GetTriggerLoopSource())
+        if (this->pCompletionGroup_)
         {
-            return pLoopSource;
+            if (auto pLoopSource = this->pCompletionGroup_->GetTriggerLoopSource())
+            {
+                return pLoopSource;
+            }
         }
-        else
+
         {
             if (auto pWaitable = this->pWaitable)
             {
                 return pWaitable;
             }
+
+            return this->pWaitable = AuLoop::NewLSEventSlow(false, true);
         }
 
         return {};
@@ -359,7 +372,7 @@ namespace Aurora::IO::Net
 
     void LinuxAsyncNetworkTransaction::MakeSyncable()
     {
-        this->pWaitable = AuLoop::NewLSEvent(false, true);
+        this->pWaitable = AuLoop::NewLSEventSlow(false, true);
         SysAssert(this->pWaitable);
         //this->overlap.hEvent = (HANDLE)AuStaticCast<Loop::LSEvent>(this->pWaitable)->GetHandle();
     }
diff --git a/Source/IO/Net/AuNetWorker.cpp b/Source/IO/Net/AuNetWorker.cpp
index 763f340e..40bcfffc 100644
--- a/Source/IO/Net/AuNetWorker.cpp
+++ b/Source/IO/Net/AuNetWorker.cpp
@@ -18,7 +18,7 @@ namespace Aurora::IO::Net
         workerIndex_(workerIndex),
         pIOProcessor_(pIOProcessor)
     {
-        this->pEvent_ = AuLoop::NewLSEvent(false, true);
+        this->pEvent_ = AuLoop::NewLSEventSlow(false, true);
         SysAssert(bool(this->pEvent_));
     }
     
diff --git a/Source/IO/UNIX/IOSubmit.Linux.cpp b/Source/IO/UNIX/IOSubmit.Linux.cpp
index 243c35f7..ea5588af 100644
--- a/Source/IO/UNIX/IOSubmit.Linux.cpp
+++ b/Source/IO/UNIX/IOSubmit.Linux.cpp
@@ -20,6 +20,7 @@
 
 namespace Aurora::IO::UNIX
 {
+    static bool LinuxOverlappedWriteWait(int fd, AuUInt offset, ASubmittable *context, AuLoop::ILSEvent *optEvent);
     static bool LinuxOverlappedSubmit(int fd, int op, AuUInt offset, ASubmittable *context, AuLoop::ILSEvent *optEvent);
     static bool LinuxOverlappedCancel(ASubmittable *context);
 
@@ -72,6 +73,8 @@ namespace Aurora::IO::UNIX
             return;
         }
 
+        // TODO: re-add LinuxOverlappedWriteWait?
+
         LIOS_Reset();
 
         try
@@ -480,6 +483,38 @@ namespace Aurora::IO::UNIX
         return AuTryInsert(io->submitPendingArray, &submit);
     }
 
+    static bool LinuxOverlappedWriteWait(int fd, AuUInt offset, ASubmittable *context, AuLoop::ILSEvent *optEvent)
+    {
+        auto io = GetTls();
+        if (!io)
+        {
+            return false;
+        }
+     
+        context->bIsWritePending = true;
+
+        context->offset2 = offset; // redundant - always zero
+        context->fd2 = fd;
+        context->optEvent2 = optEvent;
+
+        auto &submit = context->GetIOCB();
+        submit.aio_data = context->GetData();
+        submit.aio_lio_opcode = IOCB_CMD_POLL;
+        submit.aio_reqprio = 0;
+        submit.aio_fildes = context->GetOrCreateFdPollForBlockingRead(fd);
+        submit.aio_offset = 0;
+        submit.aio_buf = POLLOUT;
+        submit.aio_nbytes = 0;
+
+        if (submit.aio_fildes == -1)
+        {
+            SysPushErrorIO();
+            return false;
+        }
+
+        return AuTryInsert(io->submitPendingArray, &submit);
+    }
+
     bool LinuxOverlappedSubmitRead(int fd, AuUInt offset, ASubmittable *context, AuLoop::ILSEvent *optEvent, bool bWaitForRead)
     {
         if (bWaitForRead)
@@ -544,6 +579,11 @@ namespace Aurora::IO::UNIX
                 for (AU_ITERATE_N(i, temp))
                 {
                     auto handle = AuReinterpretCast<ASubmittable *>(ioEvents[i].data);
+                    if (!handle)
+                    {
+                        continue;
+                    }
+
                     io->dwIoSubmits--;
 
                     auto errNo = 0;
@@ -611,6 +651,7 @@ namespace Aurora::IO::UNIX
     int LinuxOverlappedEpollShim(int epfd, struct epoll_event *events,
                                  int maxevents, int timeout)
     {
+        bool bRet { true };
         timespec targetTime;
         auto io = GetTls();
         if (!io)
@@ -667,8 +708,8 @@ namespace Aurora::IO::UNIX
                 AuUInt64 uTimeNow = AuTime::SteadyClockNS();
                 if (uTargetTime <= uTimeNow)
                 {
-                    errno = EINTR;
-                    return -1;
+                    bRet = false;
+                    goto exit;
                 }
 
                 AuTime::ns2ts(&targetTime, uTimeNow - uTargetTime);
@@ -680,13 +721,7 @@ namespace Aurora::IO::UNIX
             {
                 for (AU_ITERATE_N(i, temp))
                 {
-                    auto handle = AuReinterpretCast<ASubmittable *>(ioEvents[i].data);
-                    if (!handle)
-                    {
-                        // loop source has message
-                        bEpollTriggered = true;
-                    }
-                    else
+                    if (auto handle = AuReinterpretCast<ASubmittable *>(ioEvents[i].data))
                     {
                         io->dwIoSubmits--;
 
@@ -706,6 +741,10 @@ namespace Aurora::IO::UNIX
 
                         handle->LIOS_SendProcess(bytesTransacted, bError, errNo);
                     }
+                    else
+                    {
+                        bEpollTriggered = true;
+                    }
                 }
             }
             else
@@ -742,33 +781,44 @@ namespace Aurora::IO::UNIX
             }
         } while ((timeout ? !bEpollTriggered : false) || AuExchange(bAgain, false));
 
+    exit:
         io_event finalEpollEvent {};
-        if ((bEpollTriggered) ||
-            (io_cancel(io->context, ptr, &finalEpollEvent) == 0))
+        if (!bEpollTriggered)
         {
-            // TODO (Reece): if finalEpollEvent.res == 1, bEpollTriggered = true?
-        }
-        else
-        {
-            // Do I care?
-            SysPushErrorIO();
-            // I don't
-            // I do again
+            if (io_cancel(io->context, ptr, &finalEpollEvent) != 0)
+            {
+                if (errno != EINPROGRESS)
+                {
+                    if (errno != EINVAL) // ?
+                    {
+                        SysPushErrorIO("{}", errno);
+                    }
+                }
+                else
+                {
+                    LinuxOverlappedYield();
+                }
+            }
         }
 
         if (bEpollTriggered)
         {
             return epoll_wait(epfd, events, maxevents, 0);
         }
-        else
+        else if (bRet)
         {
             return 0;
         }
+        else
+        {
+            return -ETIMEDOUT;
+        }
     }
 
     bool LinuxOverlappedWaitForOne(AuUInt32 timeout, AuUInt read, AuUInt write, bool &bReadTriggered, bool &bWriteTriggered)
     {
         timespec targetTime;
+        bool bRet { true };
         auto io = GetTls();
 
         bWriteTriggered = false;
@@ -842,8 +892,8 @@ namespace Aurora::IO::UNIX
                 AuUInt64 uTimeNow = AuTime::SteadyClockNS();
                 if (uTargetTime <= uTimeNow)
                 {
-                    errno = EINTR;
-                    return false;
+                    bRet = false;
+                    goto exit;
                 }
 
                 AuTime::ns2ts(&targetTime, uTimeNow - uTargetTime);
@@ -866,7 +916,11 @@ namespace Aurora::IO::UNIX
                     else
                     {
                         auto handle = AuReinterpretCast<ASubmittable *>(ioEvents[i].data);
-
+                        if (!handle)
+                        {
+                            continue;
+                        }
+                    
                         io->dwIoSubmits--;
 
                         auto errNo = 0;
@@ -915,6 +969,7 @@ namespace Aurora::IO::UNIX
 
         } while (timeout ? (!bReadTriggered && !bWriteTriggered) : false);
 
+    exit:
         for (int i = 0; i < iocbIdx; i++)
         {
             io_event finalEpollEvent {};
@@ -932,20 +987,24 @@ namespace Aurora::IO::UNIX
                 continue;
             }
             
-            if (io_cancel(io->context, ptrArray[i], &finalEpollEvent) == 0)
+            // "Fun". Undocumented return values to indicate we need to double our syscall count bc Linux devs cant design shit.
+            if (io_cancel(io->context, ptrArray[i], &finalEpollEvent) != 0)
             {
-                // TODO (Reece): if finalEpollEvent.res == 1, bEpollTriggered = true?
-            }
-            else
-            {
-                // Do I care?
-                SysPushErrorIO();
-                // I don't
-                // I do again
+                if (errno != EINPROGRESS)
+                {
+                    if (errno != EINVAL) // ?
+                    {
+                        SysPushErrorIO("{}", errno);
+                    }
+                }
+                else
+                {
+                    LinuxOverlappedYield();
+                }
             }
         }
 
-        return true;
+        return bRet;
     }
 
     bool LinuxOverlappedWaitForAtleastOne(AuUInt32 timeout, const AuList<AuUInt> &handles, const AuList<AuUInt> &handlesWrite, AuUInt &one, AuUInt &two)
@@ -986,6 +1045,10 @@ namespace Aurora::IO::UNIX
             for (AU_ITERATE_N(i, temp))
             {
                 auto handle = AuReinterpretCast<ASubmittable *>(ioEvents[i].data);
+                if (!handle)
+                {
+                    continue;
+                }
 
                 io->dwIoSubmits--;
 
diff --git a/Source/IO/UNIX/IOSubmit.Linux.hpp b/Source/IO/UNIX/IOSubmit.Linux.hpp
index 1dbd7d68..4cd38dc3 100644
--- a/Source/IO/UNIX/IOSubmit.Linux.hpp
+++ b/Source/IO/UNIX/IOSubmit.Linux.hpp
@@ -38,6 +38,7 @@ namespace Aurora::IO::UNIX
 
         // Hack for blocking reads
         bool bIsReadPending {};
+        bool bIsWritePending {};
         AuUInt64 offset2 {};
         int fd2 {};
         AuLoop::ILSEvent *optEvent2 {};
diff --git a/Source/Threading/Threads/AuOSThread.cpp b/Source/Threading/Threads/AuOSThread.cpp
index 2a471b0d..2e289fa6 100644
--- a/Source/Threading/Threads/AuOSThread.cpp
+++ b/Source/Threading/Threads/AuOSThread.cpp
@@ -601,8 +601,6 @@ namespace Aurora::Threading::Threads
 
     void OSThread::_ThreadEP()
     {
-        AU_DEBUG_MEMCRUNCH;
-
         // Poke TLS reference thread entity
         // TODO: we need an internal OSThread *TryPokeTLSThread()
         auto osThread = static_cast<OSThread *>(GetThread());
@@ -631,6 +629,8 @@ namespace Aurora::Threading::Threads
 
         try
         {
+            AU_DEBUG_MEMCRUNCH;
+
             if (auto task = task_)
             {
                 this->epExecEvent->Set();
@@ -848,6 +848,8 @@ namespace Aurora::Threading::Threads
 
     void OSThread::OSAttach()
     {
+        AU_DEBUG_MEMCRUNCH;
+
         HandleRegister(this);
     #if defined(AURORA_IS_LINUX_DERIVED)
         this->unixThreadId_ = gettid();