SuperHTTP server stops responding to any client

obones · September 9, 2026, 10:02am

Hello,

I have a situation that occurs at some user’s locations more often than at others in which the server suddenly stops replying to any clients, thus leading to timeout exceptions.

Here are the existing threads call stacks, as reported by madExcept:

exception class    : EROSuperHTTPChannelException
exception message  : Timeout.

thread $3d90 (THealthMonitorThread):
01074f39 +121 ASMServer.exe uROBaseSuperHttpChannel  513 +13 TROBaseSuperHTTPChannel.IntDispatch
00e3e199 +195 ASMServer.exe uROTransportChannel      530 +36 TROTransportChannel.Dispatch
00e3eb93 +12f ASMServer.exe uROTransportChannel      854 +31 TROTransportChannel.Dispatch
00ecf895 +085 ASMServer.exe AAW.ROService_Intf      1173  +8 TAAWSessionManagerService_Proxy.StartSession
0118ccdd +14d ASMServer.exe fServerDataModule        377 +23 TServerDataModule.ReloadNetworkParameters$ActRec.$0$Body
00efe044 +0e4 ASMServer.exe AAW.ROService.Utils      152 +20 THealthMonitorThread.Execute
00efe1fe +29e ASMServer.exe AAW.ROService.Utils      194 +62 THealthMonitorThread.Execute
00efe242 +2e2 ASMServer.exe AAW.ROService.Utils      196 +64 THealthMonitorThread.Execute
00b707a3 +02b ASMServer.exe madExcept                        HookedTThreadExecute
00b7080e +096 ASMServer.exe madExcept                        HookedTThreadExecute
00c0225d +049 ASMServer.exe System.Classes                   ThreadProc
00c022c0 +0ac ASMServer.exe System.Classes                   ThreadProc
00abccac +028 ASMServer.exe System                   268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe madExcept                        CallThreadProcSafe
00b706ee +032 ASMServer.exe madExcept                        ThreadExceptFrame
00b70764 +0a8 ASMServer.exe madExcept                        ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                                   BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +018 ASMServer.exe System.Classes                   TThread.Create

main thread ($4808):
00d29e9d +149 ASMServer.exe Vcl.Forms               TApplication.Idle
00d28e6f +017 ASMServer.exe Vcl.Forms               TApplication.HandleMessage
00d37ce8 +180 ASMServer.exe Vcl.SvcMgr              TServiceApplication.Run
00d37d7c +214 ASMServer.exe Vcl.SvcMgr              TServiceApplication.Run
00d37da9 +241 ASMServer.exe Vcl.SvcMgr              TServiceApplication.Run
00d387cb +007 ASMServer.exe uROComboService 264  +0 TROService.Run
01301be2 +0ca ASMServer.exe ASMServer        70  +7 initialization
01301c4c +134 ASMServer.exe ASMServer        78 +15 initialization
773d05c7 +017 KERNEL32.DLL                          BaseThreadInitThunk

thread $88 (TSystemLevelRefresherThread):
76bfc94d +12d KERNELBASE.dll                             WaitForMultipleObjectsEx
00b7045d +019 ASMServer.exe  madExcept                   InterceptClassDestroy
00c55663 +023 ASMServer.exe  System.Win.Registry         TRegistry.Destroy
00abaf1c +008 ASMServer.exe  System              268  +0 TObject.Free
00ddd077 +357 ASMServer.exe  uCoreTools          428 +57 LoadRegistryKeyX
00ddd973 +08b ASMServer.exe  uCoreTools          558  +3 LoadRegistryKeyHKCUFailOver
00c72d76 +056 ASMServer.exe  System.SyncObjs             THandleObject.WaitFor
00efd3eb +037 ASMServer.exe  LogUtils            335  +4 TSystemLevelRefresherThread.Execute
00efd42a +076 ASMServer.exe  LogUtils            339  +8 TSystemLevelRefresherThread.Execute
00b707a3 +02b ASMServer.exe  madExcept                   HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept                   HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes              ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes              ThreadProc
00abccac +028 ASMServer.exe  System              268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept                   CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept                   ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept                   ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                               BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +018 ASMServer.exe  System.Classes              TThread.Create

thread $3700 (TASMEnvironmentsCleanerThread):
76bfc94d +12d KERNELBASE.dll                           WaitForMultipleObjectsEx
00c72d76 +056 ASMServer.exe  System.SyncObjs           THandleObject.WaitFor
0112ff1b +02b ASMServer.exe  EnvironmentClasses 779 +4 TASMEnvironmentsCleanerThread.Execute
00b707a3 +02b ASMServer.exe  madExcept                 HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept                 HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes            ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes            ThreadProc
00abccac +028 ASMServer.exe  System             268 +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept                 CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept                 ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept                 ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                             BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +018 ASMServer.exe  System.Classes            TThread.Create

thread $3670 (TASMConfig.TSerialChangeCheckerThread):
76c00325 +45 KERNELBASE.dll                        SleepEx
76c002ca +0a KERNELBASE.dll                        Sleep
00c031b1 +01 ASMServer.exe  System.Classes         TThread.Sleep
0117159c +2c ASMServer.exe  ConfigClasses  594 +12 TASMConfig.TSerialChangeCheckerThread.Execute
00b707a3 +2b ASMServer.exe  madExcept              HookedTThreadExecute
00b7080e +96 ASMServer.exe  madExcept              HookedTThreadExecute
00c0225d +49 ASMServer.exe  System.Classes         ThreadProc
00c022c0 +ac ASMServer.exe  System.Classes         ThreadProc
00abccac +28 ASMServer.exe  System         268  +0 ThreadWrapper
00b70689 +0d ASMServer.exe  madExcept              CallThreadProcSafe
00b706ee +32 ASMServer.exe  madExcept              ThreadExceptFrame
00b70764 +a8 ASMServer.exe  madExcept              ThreadExceptFrame
773d05c7 +17 KERNEL32.DLL                          BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +18 ASMServer.exe  System.Classes         TThread.Create

thread $3fc (TASMLicenseActiveUsersCleanerThread):
76c00325 +045 KERNELBASE.dll                         SleepEx
0116139b +4f3 ASMServer.exe  CompanyClasses 1193 +43 TASMLicenseActiveUsersCleanerThread.Execute
011613cd +525 ASMServer.exe  CompanyClasses 1196 +46 TASMLicenseActiveUsersCleanerThread.Execute
00b707a3 +02b ASMServer.exe  madExcept               HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept               HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes          ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes          ThreadProc
00abccac +028 ASMServer.exe  System          268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept               CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept               ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept               ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                           BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +018 ASMServer.exe  System.Classes          TThread.Create

thread $d74 (TROThreadTimer):
76bfc94d +12d KERNELBASE.dll                                 WaitForMultipleObjectsEx
00ac2370 +010 ASMServer.exe  System                  268  +0 @IntfClear
00b7045d +019 ASMServer.exe  madExcept                       InterceptClassDestroy
0100a083 +077 ASMServer.exe  uROBaseSuperHttpServer   42  +0 {System.Generics.Collections}TThreadList<uROBaseSuperHttpServer.TROSuperHTTPWaitingConnection>.Destroy
00abaf1c +008 ASMServer.exe  System                  268  +0 TObject.Free
01004eb1 +089 ASMServer.exe  uROBaseSuperHttpServer  303 +12 TROSuperHTTPServerConnection.DisposeData
00b7045d +019 ASMServer.exe  madExcept                       InterceptClassDestroy
01004f48 +02c ASMServer.exe  uROBaseSuperHttpServer  320  +4 TROSuperHTTPServerConnection.Destroy
00ac37c5 +039 ASMServer.exe  System                  268  +0 TInterfacedObject._Release
00ac2370 +010 ASMServer.exe  System                  268  +0 @IntfClear
010075aa +1be ASMServer.exe  uROBaseSuperHttpServer 1014 +39 TROBaseSuperHTTPServer.cbCleanup
00c72d76 +056 ASMServer.exe  System.SyncObjs                 THandleObject.WaitFor
00e39df7 +027 ASMServer.exe  uROThreadTimer          117  +4 TROThreadTimer.IntExecute
00e3740f +07f ASMServer.exe  uROInitializedThread     58  +7 TROInitializedThread.Execute
00e3742e +09e ASMServer.exe  uROInitializedThread     61 +10 TROInitializedThread.Execute
00e37452 +0c2 ASMServer.exe  uROInitializedThread     64 +13 TROInitializedThread.Execute
00b707a3 +02b ASMServer.exe  madExcept                       HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept                       HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes                  ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes                  ThreadProc
00abccac +028 ASMServer.exe  System                  268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept                       CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept                       ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept                       ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                                   BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +018 ASMServer.exe  System.Classes                  TThread.Create

thread $4228 (TIPSocketWorkerThread):
777b546c +0bc ws2_32.dll                                 select
0100ff12 +25a ASMServer.exe uIPAsyncSocket       965 +50 TIPSocketWorkerThread.IntExecute
00e3740f +07f ASMServer.exe uROInitializedThread  58  +7 TROInitializedThread.Execute
00e3742e +09e ASMServer.exe uROInitializedThread  61 +10 TROInitializedThread.Execute
00e37452 +0c2 ASMServer.exe uROInitializedThread  64 +13 TROInitializedThread.Execute
00b707a3 +02b ASMServer.exe madExcept                    HookedTThreadExecute
00b7080e +096 ASMServer.exe madExcept                    HookedTThreadExecute
00c0225d +049 ASMServer.exe System.Classes               ThreadProc
00c022c0 +0ac ASMServer.exe System.Classes               ThreadProc
00abccac +028 ASMServer.exe System               268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe madExcept                    CallThreadProcSafe
00b706ee +032 ASMServer.exe madExcept                    ThreadExceptFrame
00b70764 +0a8 ASMServer.exe madExcept                    ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                               BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +018 ASMServer.exe System.Classes               TThread.Create

thread $340c (TServiceStartThread):
76bfa383 +93 KERNELBASE.dll                       WaitForSingleObjectEx
76bfa2dd +0d KERNELBASE.dll                       WaitForSingleObject
75e24091 +61 sechost.dll                          StartServiceCtrlDispatcherW
00d37b4b +07 ASMServer.exe  Vcl.SvcMgr            TServiceStartThread.Execute
00b707a3 +2b ASMServer.exe  madExcept             HookedTThreadExecute
00b7080e +96 ASMServer.exe  madExcept             HookedTThreadExecute
00c0225d +49 ASMServer.exe  System.Classes        ThreadProc
00c022c0 +ac ASMServer.exe  System.Classes        ThreadProc
00abccac +28 ASMServer.exe  System         268 +0 ThreadWrapper
00b70689 +0d ASMServer.exe  madExcept             CallThreadProcSafe
00b706ee +32 ASMServer.exe  madExcept             ThreadExceptFrame
00b70764 +a8 ASMServer.exe  madExcept             ThreadExceptFrame
773d05c7 +17 KERNEL32.DLL                         BaseThreadInitThunk
>> created by main thread ($4808) at:
00c02324 +18 ASMServer.exe  System.Classes        TThread.Create

thread $55d8:
76bfa383 +093 KERNELBASE.dll                WaitForSingleObjectEx
76bfa2dd +00d KERNELBASE.dll                WaitForSingleObject
00c03324 +09c ASMServer.exe  System.Classes TThread.WaitFor
00d36def +077 ASMServer.exe  Vcl.SvcMgr     TService.DoStart
00d36e28 +0b0 ASMServer.exe  Vcl.SvcMgr     TService.DoStart
00d36ece +156 ASMServer.exe  Vcl.SvcMgr     TService.DoStart
00d36d1d +095 ASMServer.exe  Vcl.SvcMgr     TService.Main
00d37233 +083 ASMServer.exe  Vcl.SvcMgr     TServiceApplication.DispatchServiceMain
00d3703a +00e ASMServer.exe  Vcl.SvcMgr     ServiceMain
00b70689 +00d ASMServer.exe  madExcept      CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept      ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept      ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                  BaseThreadInitThunk
>> created by thread $340c (TServiceStartThread) at:
75e2ac92 +000 sechost.dll

thread $9f4 (TServiceThread):
753d424a +02a USER32.dll                          GetMessageW
00d364f0 +048 ASMServer.exe Vcl.SvcMgr            TServiceThread.ProcessRequests
00d36369 +0f1 ASMServer.exe Vcl.SvcMgr            TServiceThread.Execute
00d36495 +21d ASMServer.exe Vcl.SvcMgr            TServiceThread.Execute
00b707a3 +02b ASMServer.exe madExcept             HookedTThreadExecute
00b7080e +096 ASMServer.exe madExcept             HookedTThreadExecute
00c0225d +049 ASMServer.exe System.Classes        ThreadProc
00c022c0 +0ac ASMServer.exe System.Classes        ThreadProc
00abccac +028 ASMServer.exe System         268 +0 ThreadWrapper
00b70689 +00d ASMServer.exe madExcept             CallThreadProcSafe
00b706ee +032 ASMServer.exe madExcept             ThreadExceptFrame
00b70764 +0a8 ASMServer.exe madExcept             ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                        BaseThreadInitThunk
>> created by thread $55d8 at:
00c02324 +018 ASMServer.exe System.Classes        TThread.Create

thread $427c (TROPooledThread):
76bfc94d +12d KERNELBASE.dll                                WaitForMultipleObjectsEx
0100e9bd +0d9 ASMServer.exe  uIPAsyncSocket         465 +16 TIPBaseAsyncSocket.BeginSend
00ac2370 +010 ASMServer.exe  System                 268  +0 @IntfClear
00abed34 +174 ASMServer.exe  System                 268  +0 @FinalizeRecord
00ac2370 +010 ASMServer.exe  System                 268  +0 @IntfClear
010066ad +1f5 ASMServer.exe  uROBaseSuperHttpServer 648 +32 TQueueItem.SuperHttpCallback
00c72d76 +056 ASMServer.exe  System.SyncObjs                THandleObject.WaitFor
010000f2 +03a ASMServer.exe  uROThreadPool          136  +5 TROPooledThread.IntExecute
01000213 +15b ASMServer.exe  uROThreadPool          164 +33 TROPooledThread.IntExecute
00e3740f +07f ASMServer.exe  uROInitializedThread    58  +7 TROInitializedThread.Execute
00e3742e +09e ASMServer.exe  uROInitializedThread    61 +10 TROInitializedThread.Execute
00e37452 +0c2 ASMServer.exe  uROInitializedThread    64 +13 TROInitializedThread.Execute
00b707a3 +02b ASMServer.exe  madExcept                      HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept                      HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes                 ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes                 ThreadProc
00abccac +028 ASMServer.exe  System                 268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept                      CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept                      ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept                      ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                                  BaseThreadInitThunk
>> created by thread $4228 (TIPSocketWorkerThread) at:
00c02324 +018 ASMServer.exe  System.Classes                 TThread.Create

thread $3be0 (TROThreadTimer):
76bfc94d +12d KERNELBASE.dll                               WaitForMultipleObjectsEx
00ebc3bf +02b ASMServer.exe  uROSessions          1025  +1 TROCustomSessionManager.DoNotifySessionsChangesListener
00ebbc28 +11c ASMServer.exe  uROSessions           818 +22 TROCustomSessionManager.DeleteSession
00ebc7e1 +061 ASMServer.exe  uROSessions          1220  +3 TROInMemorySessionManager.DoClearSessions
00ebb76b +093 ASMServer.exe  uROSessions           713 +10 TROCustomSessionManager.ClearSessions
00c72d76 +056 ASMServer.exe  System.SyncObjs               THandleObject.WaitFor
00e39df7 +027 ASMServer.exe  uROThreadTimer        117  +4 TROThreadTimer.IntExecute
00e3740f +07f ASMServer.exe  uROInitializedThread   58  +7 TROInitializedThread.Execute
00e3742e +09e ASMServer.exe  uROInitializedThread   61 +10 TROInitializedThread.Execute
00e37452 +0c2 ASMServer.exe  uROInitializedThread   64 +13 TROInitializedThread.Execute
00b707a3 +02b ASMServer.exe  madExcept                     HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept                     HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes                ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes                ThreadProc
00abccac +028 ASMServer.exe  System                268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept                     CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept                     ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept                     ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                                 BaseThreadInitThunk
>> created by thread $427c (TROPooledThread) at:
00c02324 +018 ASMServer.exe  System.Classes                TThread.Create

thread $3a20 (TROPooledThread):
76bfc94d +12d KERNELBASE.dll                                WaitForMultipleObjectsEx
00ac2370 +010 ASMServer.exe  System                 268  +0 @IntfClear
010066ad +1f5 ASMServer.exe  uROBaseSuperHttpServer 648 +32 TQueueItem.SuperHttpCallback
00c72d76 +056 ASMServer.exe  System.SyncObjs                THandleObject.WaitFor
010000f2 +03a ASMServer.exe  uROThreadPool          136  +5 TROPooledThread.IntExecute
01000213 +15b ASMServer.exe  uROThreadPool          164 +33 TROPooledThread.IntExecute
00e3740f +07f ASMServer.exe  uROInitializedThread    58  +7 TROInitializedThread.Execute
00e3742e +09e ASMServer.exe  uROInitializedThread    61 +10 TROInitializedThread.Execute
00e37452 +0c2 ASMServer.exe  uROInitializedThread    64 +13 TROInitializedThread.Execute
00b707a3 +02b ASMServer.exe  madExcept                      HookedTThreadExecute
00b7080e +096 ASMServer.exe  madExcept                      HookedTThreadExecute
00c0225d +049 ASMServer.exe  System.Classes                 ThreadProc
00c022c0 +0ac ASMServer.exe  System.Classes                 ThreadProc
00abccac +028 ASMServer.exe  System                 268  +0 ThreadWrapper
00b70689 +00d ASMServer.exe  madExcept                      CallThreadProcSafe
00b706ee +032 ASMServer.exe  madExcept                      ThreadExceptFrame
00b70764 +0a8 ASMServer.exe  madExcept                      ThreadExceptFrame
773d05c7 +017 KERNEL32.DLL                                  BaseThreadInitThunk
>> created by thread $4228 (TIPSocketWorkerThread) at:
00c02324 +018 ASMServer.exe  System.Classes                 TThread.Create

thread $12c8:
773d05c7 +17 KERNEL32.DLL  BaseThreadInitThunk

thread $51b0:
773d05c7 +17 KERNEL32.DLL  BaseThreadInitThunk

The THealthMonitorThread is a thread internal to the server itself that behaves like a client, basically doing a healthcheck on a regular basis.
When it times out as in the trace above, no other real clients from remote computers can communicate either.

An analysis of the call stacks leads me to believe there is a deadlock between two threads inside the server, which might be induced by my users’ “security suites” that introduce some artificial delay in the way sockets are dealt with.

I must admit this is very speculative and so would like your opinion on what I believe is a case of “lock A, wait for lock B” while another thread has done “lock B, wait for lock A” happening because of this sequence:

A pool thread finishes DispatchMessage (StartSession / GetVersion already ran) and enters SendAsyncResponse. It locks WaitingConnections and calls SendResponse / BeginSend.
BeginSend waits on fMyCs, or the send otherwise does not complete quickly (security suite impact most likely).
The 30 s cleanup timer fires, takes fConnections, then tries WaitingConnections.LockList on the same connection → blocks.
From this point every GetConnection blocks on fConnections. External clients hang. The health probe’s IntDispatch waits RequestTimeout (60 s) and raises Timeout.
Incoming TCP accepts still succeed (select is still running); the HTTP request is read; SuperHTTP then stalls in GetConnection. Clients see a connected socket that never answers.

This seems to fit with the above dump:

Thread	Stack	Meaning
`$3d90` `THealthMonitorThread`	`IntDispatch` +13	Client waited 60 s for the wait-socket reply
`$427c` `TROPooledThread`	`SuperHttpCallback` +32 → `BeginSend`	Server already dispatched the RPC; stuck sending the reply
`$3a20` `TROPooledThread`	`SuperHttpCallback` +32	Second worker in the same send path
`$d74` `TROThreadTimer`	`cbCleanup` → `DisposeData` → `TThreadList.Destroy` → connection `Destroy` / `_Release`	Cleanup tearing down wait sockets (and dropping the last interface ref) while the global lock is held
`$3be0` `TROThreadTimer`	`ClearSessions` → `DeleteSession` → `DoNotifySessionsChangesListener`	Session teardown notifying SuperHTTP listeners; created by `$427c`
`$4228` `TIPSocketWorkerThread`	`select`	Accept loop not dead

To avoid this deadlock, I suggest to modify SendAsyncResponse, DisposeData and cbCleanup so that they identify the items to work on while in the locked section, but work on those items outisde the locked section itself while ensuring no other thread can use those identified items.

The following zip contains suggested diffs:
ro superserver deadlock.zip (3.1 KB)

Once again, I must insist that this is all very speculative, based on observations at users’ locations which makes it hard for me to assess the validity of the suggested fixes.
It would thus be nice if you could give me your honest opinion on this, and maybe try the fix on your entire test suite to see if it doesn’t break anything.

Regards

Olivier

EvgenyK · September 9, 2026, 2:01pm

Hi,

I believe we already fixed this issue.
Can you retest it, pls?
We have uploaded ROD .1628 to your personal cabinet.

Note: account that has license.

obones · September 9, 2026, 3:44pm

Thanks for that.

I compared the new version with 1627 and cbCleanup does indeed now process its connections outside of the fCR critical section.

But it does not do what’s in my suggested patch, which is collect the connections into the new l_toKill and l_expired lists so that they are both be processed out of the .LockList protected section.

Also, neither SendAsyncResponse nor DisposeData have been changed, so they are still capable of triggering the situation I describe earlier, which I strongly believe is also the source of some AVs that we are seeing as an alternate situation instead of the timeout.

FWIW, I applied my change locally and all my unit tests are still passing. Granted, none of those actually showed the lock issue, but at least they don’t break anything obvious.

EvgenyK · September 9, 2026, 5:40pm

Hi,

can you confirm that this failure is reproduced in .1628 (unpatched version) ?
we have rewritten some code and server-side should work more stable

obones · September 10, 2026, 8:56am

Right now, no, I can’t just confirm that because I need to give a new version of the affected server to my own users and that can only happen if they are willing to participate.

Also, I don’t think I can use .1628 directly because of what I reported here: EROBaseAsyncSocketError: Response already sent - #7 by EvgenyK

Anyway, I’ll contact my users and see what comes up with that, but in the end, I’m convinced that there is more to that situation than just the changes to cbCleanup that were introduced with .1628

EvgenyK · September 10, 2026, 9:08am

Hi,

this issue may be fixed too.
ofc, confirmation from your side is required.
at least EROBaseAsyncSocketError: Response already sent exception isn’t raised in .1628 in my tests.

obones · September 10, 2026, 9:26am

Ok, I’ll wait for it to be the next stable release, as this is required in our regular process.

For the other part, I have contacted my users, I’ll see where this is heading