Hi
After some “random” time, even if I leave the unreal engine idle it hangs. It does so without any OS hang or crash messages. It only uses 100% of one core (25% cpu usage in my quad core case).
What I found out is that the UE4Editor-Cmd looks into C:/programData/Epic/Engine/DerivedDataCache folders.
To “fix” this, or rather unlocking the engine from this nasty loop, I only had to rename DerivedDataCache to something else. Of course I recommend renaming it back after it.
Edit:
Don’t know if this is related, sometimes it still hangs similarly and it gets stuck with adb
One solution there, is to restart adb so that the daemon reactivates, then UE4 will resume from hang.
/Edit
[Win7-64 SP1] [UE4.0.1][nvidia 332.21 - physx 09.13.0725] [adt-bundle-windows-x86_64-20131030]
Here are some log text from process monitor from sysinternals:
16:23:21.0074588 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\4\1\ NAME NOT FOUND Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
16:23:21.0075762 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\4\1\ NAME NOT FOUND Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
16:23:21.0076943 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\9\3\9\ NAME NOT FOUND Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
16:23:21.0078046 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\9\3\9\ NAME NOT FOUND Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
16:23:21.0081074 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0081521 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\* SUCCESS Filter: *, 1: .
16:23:21.0081876 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS 0: .., 1: MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd, 2: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd, 3: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_E030F40248FAE9E77FECC6AC5D70DD0C__1_0_13057_0.udd, 4: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_E8552D544E7FBCA644E47482F31A09F0__1_0_13057_0.udd
16:23:21.0082415 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 NO MORE FILES
16:23:21.0082603 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0082825 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0085757 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0086109 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\* SUCCESS Filter: *, 1: .
16:23:21.0086436 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS 0: .., 1: MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd, 2: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd, 3: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_E030F40248FAE9E77FECC6AC5D70DD0C__1_0_13057_0.udd, 4: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_E8552D544E7FBCA644E47482F31A09F0__1_0_13057_0.udd
16:23:21.0086754 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 NO MORE FILES
16:23:21.0086945 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0087133 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0088218 PM UE4Editor-Cmd.exe 4076 QueryOpen C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd FAST IO DISALLOWED
16:23:21.0089034 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0090161 PM UE4Editor-Cmd.exe 4076 QueryBasicInformationFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS CreationTime: 2014-03-21 11:57:32 AM, LastAccessTime: 2014-03-21 11:57:32 AM, LastWriteTime: 2014-03-21 11:57:32 AM, ChangeTime: 2014-03-21 11:57:32 AM, FileAttributes: ANCI
16:23:21.0090352 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS
16:23:21.0090598 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS
16:23:21.0094523 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0095162 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS Filter: MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd, 1: MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd
16:23:21.0095688 PM UE4Editor-Cmd.exe 4076 RegOpenKey HKLM\Software\Microsoft\Windows NT\CurrentVersion\Time Zones\W. Europe Standard Time\Dynamic DST NAME NOT FOUND Desired Access: Read, Maximum Allowed
16:23:21.0096087 PM UE4Editor-Cmd.exe 4076 RegOpenKey HKLM\Software\Microsoft\Windows NT\CurrentVersion\Time Zones\W. Europe Standard Time\Dynamic DST NAME NOT FOUND Desired Access: Read, Maximum Allowed
16:23:21.0096357 PM UE4Editor-Cmd.exe 4076 RegOpenKey HKLM\Software\Microsoft\Windows NT\CurrentVersion\Time Zones\W. Europe Standard Time\Dynamic DST NAME NOT FOUND Desired Access: Read, Maximum Allowed
16:23:21.0096582 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0096910 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0098125 PM UE4Editor-Cmd.exe 4076 QueryOpen C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd FAST IO DISALLOWED
16:23:21.0098927 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0099374 PM UE4Editor-Cmd.exe 4076 QueryBasicInformationFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS CreationTime: 2014-03-21 11:57:32 AM, LastAccessTime: 2014-03-21 11:57:32 AM, LastWriteTime: 2014-03-21 11:57:32 AM, ChangeTime: 2014-03-21 11:57:32 AM, FileAttributes: ANCI
16:23:21.0099552 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS
16:23:21.0099794 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS
16:23:21.0103751 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0104225 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd SUCCESS Filter: MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd, 1: MATSM_9B5EBB87518144F08D55CE1C2D2096B6_PCD3D_SM5_0__BC5N_BMSIN_DEV_SL_NODBUF8A__DC64CE93E2DDCE5ED30AC7BAB3918E4CF529998D.udd
16:23:21.0104580 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0104782 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0603154 PM UE4Editor-Cmd.exe 4076 QueryOpen C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd FAST IO DISALLOWED
16:23:21.0603991 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0604469 PM UE4Editor-Cmd.exe 4076 QueryBasicInformationFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd SUCCESS CreationTime: 2014-03-21 16:15:41 PM, LastAccessTime: 2014-03-21 16:15:41 PM, LastWriteTime: 2014-03-21 16:15:41 PM, ChangeTime: 2014-03-21 16:15:41 PM, FileAttributes: ANCI
16:23:21.0604646 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd SUCCESS
16:23:21.0604923 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd SUCCESS
16:23:21.0608094 PM UE4Editor-Cmd.exe 4076 CreateFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
16:23:21.0608490 PM UE4Editor-Cmd.exe 4076 QueryDirectory C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd SUCCESS Filter: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd, 1: PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd
16:23:21.0608848 PM UE4Editor-Cmd.exe 4076 CloseFile C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0609029 PM UE4Editor-Cmd.exe 4076 IRP_MJ_CLOSE C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6 SUCCESS
16:23:21.0610009 PM UE4Editor-Cmd.exe 4076 QueryOpen C:\ProgramData\Epic\Engine\DerivedDataCache\1\5\6\PHYSX_$7B1F0627AE$2DABEB$2D4206$2D8D78$2DE16BEB5DDC7E$7D_PHYSXPC_DCAD73394F05EECC2644A1811B785460__1_0_13057_0.udd FAST IO DISALLOWED