I don't know if it's an option in your case but I've been using the ODBC package (with both Pharo and Squeak) for years successfully with MySQL, InterBase, PostgreSQL, Oracle, DB/2 and SQLite and it works just fine. Which version of MySQL are you using and on which platform? There has been so many changes in the MySQL communication protocol in the last years that this could potentially be a problem (if you're using 3.23x or the more recent 5.5 & 5.6). And exactly which Pharo image & DBX version are you using? ----------------- Benoit St-Jean Yahoo! Messenger: bstjean Twitter: @BenLeChialeux Pinterest: benoitstjean IRC: lamneth Blogue: endormitoire.wordpress.com "A standpoint is an intellectual horizon of radius zero". (A. Einstein) From: Michael Berg <michael.berg@web.de> To: pharo-users@lists.pharo.org Sent: Thursday, December 18, 2014 9:57 AM Subject: [Pharo-users] Question regarding crashes using OpenDBXDriver <!--#yiv8588539840 _filtered #yiv8588539840 {font-family:Wingdings;panose-1:5 0 0 0 0 0 0 0 0 0;} _filtered #yiv8588539840 {font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv8588539840 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}#yiv8588539840 #yiv8588539840 p.yiv8588539840MsoNormal, #yiv8588539840 li.yiv8588539840MsoNormal, #yiv8588539840 div.yiv8588539840MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv8588539840 a:link, #yiv8588539840 span.yiv8588539840MsoHyperlink {color:#0563C1;text-decoration:underline;}#yiv8588539840 a:visited, #yiv8588539840 span.yiv8588539840MsoHyperlinkFollowed {color:#954F72;text-decoration:underline;}#yiv8588539840 span.yiv8588539840E-MailFormatvorlage17 {font-family:"Calibri", sans-serif;color:windowtext;}#yiv8588539840 .yiv8588539840MsoChpDefault {} _filtered #yiv8588539840 {margin:70.85pt 70.85pt 2.0cm 70.85pt;}#yiv8588539840 div.yiv8588539840WordSection1 {}-->Hello,  Iâm usually just reading the list (and Pharo-dev), but right now Iâm trying to figure out, if I could use Pharo with Seaside to implement a little REST Interface for some MySQL database Iâm using. My first step was to try to get somehow a MySQL connection working. As it seems there arenât that many ways of using a MySQL database from Pharo, I tried to use the OpenDBXDriver. My problem is that I get often VM crashes. It seems that if I use a completely fresh image I get at least to the point I can query the db. But after the image crashed the foreign process crashes already sometime after connecting to the db (about 30 seconds later, maybe some timeout) or right away upon trying to disconnect for example. I can just imagine that something was left behind after the first crash in the fresh image and after that I canât get further than that. I know this is a pretty fuzzy description, but due to NativeBoost being involved itâs quite hard for somebody quite unfamiliar with Pharo/Smalltalk to see where things might go wrong. At the end of the email I include two crash-dumps, so maybe somebody has an idea and can help.  I also had to work around (fix would be the wrong word) a problem that when the DBX code tried to get the column names; after the first column somehow odbx_column_name from the C-Api returns NULL or NB creates a nil from that call, so that the following readString send fails. Again because this happens somehow at the C side of things I couldnât (or didnât know how to) look further in the debugger.Just to see if I can get a resultset at all I changed NBPharoOpenDBX>>apiQueryColumnName:index: to  Fileout:'From Pharo3.0 of 18 March 2013 [Latest update: #30862] on 18 December 2014 at 3:44:48.371881 pm'!!NBPharoOpenDBX methodsFor: 'api calls' stamp: 'MichaelBerg 12/18/2014 13:36'!apiQueryColumnName: handle index: index           "char* odbx_column_name(odbx_result_t* result, unsigned long pos )"           "IMPORTANT: Index es zero-based"           | x |           x := self openDBXlib odbx_column_name: handle pos: index.           ^x isNil ifTrue: [ 'nil' ] ifFalse: [ x readString ].! !  That way I got at least a result and for some reason the similar method getting the column type just worked.  Maybe somebody has an idea or has experienced similar things before. Any hint or help is highly appreciated. J   Thank you and cheers.   Michael            Crashdumps:  This one is one where the VM crashes after a few seconds upon a DBXConnection>>connect message.  ---------------------------------------------------------------------Thu Dec 18 15:04:13 2014  Exception code: C0000005Exception addr: 77D5D5ACAccess violation (read access) at FFFFFFF8EAX:003C00C0  EBX:003CAAD8 ECX:00000088   EDX:003C3FD8ESI:00000000    EDI:003C0000   EBP:053DFB90  ESP:053DFA90EIP:77D5D5AC  EFL:00010206FP Control: 0000027FFP Status: 00000020FP Tag:    0000FFFF   Crashed in some other thread    Hardware information:                Manufacturer: Unknown               Model: Unknown               Number of processors: 4               Page size: 4096  Memory Information (upon launch):               Physical Memory Size: 4194303 kbytes               Physical Memory Free: 1871016 kbytes               Page File Size: 4194303 kbytes               Page File Free: 4194303 kbytes               Virtual Memory Size: 2097024 kbytes               Virtual Memory Free: 2026780 kbytes               Memory Load: 76 percent  Processor 0: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz               Identifier: Intel64 Family 6 Model 69 Stepping 1               ~MHZ: 2694  Processor 1: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz               Identifier: Intel64 Family 6 Model 69 Stepping 1               ~MHZ: 2694  Processor 2: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz               Identifier: Intel64 Family 6 Model 69 Stepping 1               ~MHZ: 2694  Processor 3: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz               Identifier: Intel64 Family 6 Model 69 Stepping 1               ~MHZ: 2694  Operating System: Windows 8.1 Pro (Build 9200 )               Registered Owner: Windows User               Registered Company:                SP major version: 0               SP minor version: 0               Suite mask: 100               Product type: 1  Display Information:                Graphics adapter name: Intel(R) HD Graphics Family               Primary monitor resolution: 1920 x 1200  Device: ???               Adapter String: Intel(R) HD Graphics 4400               Bios String: Intel Video BIOS               Chip Type: Intel(R) HD Graphics Family               DAC Type: Internal               Memory Size: 0x82000000  Driver Versions:               igdumdim64:  VM Version: Cog VM 4.0.0 (release) from Sep 25 2014Compiler: gcc 4.6.2Interpreter Build: NBCoInterpreter NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 uuid: e0df6e2d-5694-40e2-8035-dc217200b424 Sep 25 2014Cogit Build: NBCogit NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 uuid: e0df6e2d-5694-40e2-8035-dc217200b424 Sep 25 2014Source Version: https://github.com/pharo-project/pharo-vm.git Commit: 81b5d19917dcb78f22482a780deec48c53738396 Date: 2014-09-20 14:36:18 +0200 By: Esteban Lorenzano <estebanlm@gmail.com> Jenkins build #14858  Current byte code: -1Primitive index: 0  Loaded plugins:               libopendbx-1.dll               B2DPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               Kernel32               ZipPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               NativeBoostPlugin NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 (i)               BitBltPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               FT2Plugin Freetype-Plugin-IgorStasenko.64 (e)               SecurityPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               FilePlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               MiscPrimitivePlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               LargeIntegers v1.5 VMMaker.oscog-jeanbaptistearnaud.783 (i)               LocalePlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)  Module information:               00400000 - 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77aa7000: C:\WINDOWS\SYSTEM32\NSI.dll               77ab0000 - 77c38000: C:\WINDOWS\SYSTEM32\CRYPT32.dll               77d20000 - 77e87000: C:\WINDOWS\SYSTEM32\ntdll.dll  Primitive trace:at:put:basicNewrelinquishProcessorForMicroseconds:basicNew:relinquishProcessorForMicroseconds:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:perform:with:with:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:at:put:at:put:at:put:at:put:at:put:at:put:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:perform:with:with:@perform:with:perform:with:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:perform:with:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:at:put:at:put:at:put:at:put:at:put:at:put:at:put:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:@perform:with:perform:with:@perform:with:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:perform:with:@basicNewshallowCopyrelinquishProcessorForMicroseconds:at:put:perform:with:at:put:at:put:at:put:at:put:at:put:at:put:at:put:relinquishProcessorForMicroseconds:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:perform:with:with:shallowCopyperform:with:with:relinquishProcessorForMicroseconds:waitsignalmillisecondClockValuemillisecondClockValueshallowCopyperform:with:with:shallowCopyrelinquishProcessorForMicroseconds:at:put:at:put:at:put:at:put:basicNewnew:basicNewrelinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:perform:with:@perform:with:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:@basicNewshallowCopyperform:with:with:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:relinquishProcessorForMicroseconds:at:put:at:put:at:put:at:put:at:put:   Stack backtrace:               [77D5D5AC] RtlGetAppContainerParent + 1245 in ntdll.dll               [77D5D289] RtlGetAppContainerParent + 442 in ntdll.dll               [779E9A15] free + 57 in msvcrt.dll               [779EABDD] wcsstr + 942 in msvcrt.dll               [77D86661] RtlLookupEntryHashTable + 184 in ntdll.dll               [77D42082] MD4Init + 104 in ntdll.dll               [77D42003] RtlFillMemoryUlonglong + 76 in ntdll.dll               [77D24135] RtlWeaklyEnumerateEntryHashTable + 421 in ntdll.dll               [777B919F] AcquireSRWLockExclusive + 14 in KERNEL32.DLL               [77D70BBB] RtlInsertElementGenericTableAvl + 132 in ntdll.dll               [77D70B91] RtlInsertElementGenericTableAvl + 90 in ntdll.dll  Can't dump Smalltalk stack. Not in VM thread   This was my last one when sending DBXConnection>>disconnect.---------------------------------------------------------------------Thu Dec 18 15:07:17 2014  Exception code: C0000005Exception addr: 77D5D509Access violation (read access) at 00000000EAX:00000000  EBX:0607C460  ECX:00000000   EDX:0607C828ESI:0607C820    EDI:009B0000   EBP:0023DEF0  ESP:0023DDF0EIP:77D5D509   EFL:00210246FP Control: 0000027FFP Status: 00004020FP Tag:    0000FFFF   Crashed in the VM thread    Hardware information:                Manufacturer: Unknown               Model: Unknown               Number of processors: 4               Page size: 4096  Memory Information (upon launch):               Physical Memory Size: 4194303 kbytes               Physical Memory Free: 1914300 kbytes               Page File Size: 4194303 kbytes               Page File Free: 4194303 kbytes               Virtual Memory Size: 2097024 kbytes               Virtual Memory Free: 2026780 kbytes               Memory 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(i)               B2DPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               Kernel32               ZipPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               NativeBoostPlugin NativeBoost-CogPlugin-HolgerHansPeterFreyther.21 (i)               BitBltPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               FT2Plugin Freetype-Plugin-IgorStasenko.64 (e)               SecurityPlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               FilePlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               MiscPrimitivePlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)               LargeIntegers v1.5 VMMaker.oscog-jeanbaptistearnaud.783 (i)               LocalePlugin VMMaker.oscog-jeanbaptistearnaud.783 (i)  Module information:               00400000 - 006ee000: D:\development\Pharo\Pharo.exe               034b0000 - 034c2000: C:\Program Files (x86)\Common Files\TortoiseOverlays\TortoiseOverlays.dll               034d0000 - 034e6000: C:\Program Files\TortoiseGit\bin\TortoiseGitStub32.dll               08040000 - 08063000: C:\Users\berg\AppData\Roaming\Dropbox\bin\DropboxExt.24.dll               080b0000 - 0812a000: C:\Program Files\TortoiseGit\bin\TortoiseGit32.dll               08130000 - 081c3000: C:\Program Files\TortoiseGit\bin\libgit232_tgit.dll               081d0000 - 0839c000: C:\Program Files\TortoiseGit\bin\gitdll32.dll               083a0000 - 08411000: C:\WINDOWS\SYSTEM32\MSVCP120.dll               08420000 - 0850e000: C:\WINDOWS\SYSTEM32\MSVCR120.dll               0f320000 - 0f82c000: D:\development\Pharo\LIBMYSQL.dll               0fc50000 - 0fc65000: C:\Program Files\TortoiseGit\bin\zlib132_tgit.dll               10010000 - 10037000: C:\WINDOWS\SYSTEM32\crtdll.dll               10040000 - 10140004: CogCode               4fe20000 - 4fe44000: C:\WINDOWS\SYSTEM32\GLU32.dll               50a90000 - 50b77000: C:\WINDOWS\SYSTEM32\DDRAW.dll               527a0000 - 5280a000: C:\WINDOWS\System32\StructuredQuery.dll               5a370000 - 5a4bb000: C:\WINDOWS\system32\DUI70.dll               5a7a0000 - 5a816000: C:\WINDOWS\system32\DUser.dll               5e3d0000 - 5e518000: C:\WINDOWS\SYSTEM32\dbghelp.dll               60f30000 - 60f37000: C:\WINDOWS\SYSTEM32\DCIMAN32.dll               610e0000 - 610f8000: C:\Windows\System32\DevDispItemProvider.dll               61380000 - 61391000: C:\WINDOWS\System32\ntlanman.dll               613e0000 - 61403000: C:\WINDOWS\SYSTEM32\dinput.dll               643c0000 - 6442f000: D:\development\Pharo\libopendbx-1.dll               64470000 - 644fe000: C:\WINDOWS\WinSxS\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.8387_none_5094ca96bcb6b2bb\MSVCP90.dll               650d0000 - 65170000: C:\WINDOWS\SYSTEM32\ntshrui.dll               65350000 - 653e9000: C:\WINDOWS\SYSTEM32\apphelp.dll               65420000 - 65434000: C:\WINDOWS\SYSTEM32\MPR.dll               658e0000 - 658e9000: C:\WINDOWS\System32\drprov.dll               65a20000 - 65a2d000: C:\WINDOWS\SYSTEM32\cscapi.dll               65f30000 - 6609b000: C:\WINDOWS\SYSTEM32\WindowsCodecs.dll               666e0000 - 66805000: C:\WINDOWS\SYSTEM32\PROPSYS.dll               66e40000 - 66f02000: D:\development\Pharo\libfreetype-6.dll               68e60000 - 68f34000: C:\WINDOWS\SYSTEM32\OPENGL32.DLL               69f40000 - 69f5a000: D:\development\Pharo\FT2Plugin.DLL               70d80000 - 70dee000: D:\development\Pharo\libmysqlbackend-1.dll               73720000 - 73733000: C:\WINDOWS\SYSTEM32\dhcpcsvc.DLL               73740000 - 73752000: C:\WINDOWS\SYSTEM32\dhcpcsvc6.DLL               73790000 - 73799000: C:\WINDOWS\System32\winrnr.dll               737a0000 - 737b2000: C:\WINDOWS\system32\NLAapi.dll               737c0000 - 737d4000: C:\WINDOWS\system32\pnrpnsp.dll               737e0000 - 737f0000: C:\WINDOWS\system32\napinsp.dll               73c90000 - 73d24000: C:\WINDOWS\SYSTEM32\WINHTTP.dll               73d30000 - 73d74000: C:\WINDOWS\System32\fwpuclnt.dll               73d80000 - 73d87000: C:\Windows\System32\rasadhlp.dll               73d90000 - 73e0c000: C:\WINDOWS\SYSTEM32\DNSAPI.dll               74000000 - 74008000: C:\WINDOWS\SYSTEM32\WSOCK32.DLL               74070000 - 74079000: C:\WINDOWS\SYSTEM32\Secur32.dll               74080000 - 74099000: C:\WINDOWS\System32\davclnt.dll               740f0000 - 740f6000: C:\WINDOWS\SYSTEM32\SHFolder.dll               74180000 - 74188000: C:\WINDOWS\SYSTEM32\VERSION.dll               74190000 - 7419e000: C:\WINDOWS\SYSTEM32\profapi.dll               74200000 - 74209000: C:\WINDOWS\System32\DAVHLPR.dll               74400000 - 74410000: C:\WINDOWS\System32\wkscli.dll               74410000 - 7442b000: C:\WINDOWS\SYSTEM32\srvcli.dll               74430000 - 7443a000: C:\WINDOWS\System32\netutils.dll               74440000 - 74448000: C:\WINDOWS\SYSTEM32\WINNSI.DLL               749d0000 - 749ee000: C:\WINDOWS\SYSTEM32\IPHLPAPI.DLL               74ba0000 - 74baf000: C:\WINDOWS\system32\wshbth.dll               74bb0000 - 74bf5000: C:\WINDOWS\System32\mswsock.dll               74c00000 - 74c1d000: C:\WINDOWS\SYSTEM32\bcrypt.dll               74c20000 - 74c4f000: C:\WINDOWS\system32\rsaenh.dll               74c50000 - 74c68000: C:\WINDOWS\SYSTEM32\CRYPTSP.dll               74c70000 - 74e56000: C:\WINDOWS\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.9600.17031_none_a9efdb8b01377ea7\comctl32.dll               74fb0000 - 74fc8000: C:\WINDOWS\system32\dwmapi.dll               74fd0000 - 75046000: C:\WINDOWS\SYSTEM32\SHCORE.DLL               75210000 - 75252000: C:\WINDOWS\System32\WINSTA.dll               75260000 - 7527f000: C:\WINDOWS\SYSTEM32\DEVOBJ.dll               75280000 - 752a0000: C:\WINDOWS\SYSTEM32\WINMMBASE.dll               752a0000 - 752c0000: C:\WINDOWS\SYSTEM32\WINMM.DLL               754a0000 - 7557b000: C:\WINDOWS\system32\uxtheme.dll               755f0000 - 755f9000: C:\WINDOWS\SYSTEM32\kernel.appcore.dll               75600000 - 756a3000: C:\WINDOWS\WinSxS\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.8387_none_5094ca96bcb6b2bb\MSVCR90.dll               756b0000 - 75702000: C:\WINDOWS\SYSTEM32\bcryptPrimitives.dll               75710000 - 75719000: C:\WINDOWS\SYSTEM32\CRYPTBASE.dll               75720000 - 7573d000: C:\WINDOWS\SYSTEM32\SspiCli.dll               75890000 - 75a3d000: C:\WINDOWS\SYSTEM32\SETUPAPI.dll               75a40000 - 75abd000: C:\WINDOWS\SYSTEM32\clbcatq.dll               75ac0000 - 75bcc000: C:\WINDOWS\SYSTEM32\OLE32.dll               75bd0000 - 75c0e000: C:\WINDOWS\SYSTEM32\sechost.dll               75c10000 - 75c5d000: C:\WINDOWS\SYSTEM32\WS2_32.dll               75c60000 - 75c9a000: C:\WINDOWS\SYSTEM32\cfgmgr32.dll               75ca0000 - 75dee000: C:\WINDOWS\SYSTEM32\combase.dll               75df0000 - 75ea0000: C:\WINDOWS\SYSTEM32\RPCRT4.dll               75ea0000 - 75ed8000: C:\WINDOWS\SYSTEM32\WINTRUST.dll               75ef0000 - 75fc0000: C:\WINDOWS\SYSTEM32\KERNELBASE.dll               75fc0000 - 75fc6000: C:\WINDOWS\SYSTEM32\psapi.dll               75fd0000 - 76065000: C:\WINDOWS\SYSTEM32\OLEAUT32.DLL               76070000 - 760fa000: C:\WINDOWS\SYSTEM32\COMDLG32.DLL               76160000 - 761e6000: C:\WINDOWS\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.9600.16384_none_7c55c866aa0c3ff0\COMCTL32.dll               761f0000 - 762f7000: C:\WINDOWS\SYSTEM32\GDI32.dll               76300000 - 76325000: C:\WINDOWS\system32\IMM32.DLL               76390000 - 76408000: C:\WINDOWS\SYSTEM32\ADVAPI32.DLL               76410000 - 775c7000: C:\WINDOWS\SYSTEM32\SHELL32.DLL               775d0000 - 7771c000: C:\WINDOWS\SYSTEM32\USER32.dll               77720000 - 77761000: C:\WINDOWS\SYSTEM32\SHLWAPI.dll               77790000 - 7779e000: C:\WINDOWS\SYSTEM32\MSASN1.dll               777a0000 - 778e0000: C:\WINDOWS\SYSTEM32\KERNEL32.DLL               778e0000 - 779d7000: C:\WINDOWS\SYSTEM32\MSCTF.dll               779e0000 - 77a9e000: C:\WINDOWS\SYSTEM32\msvcrt.dll               77aa0000 - 77aa7000: C:\WINDOWS\SYSTEM32\NSI.dll               77ab0000 - 77c38000: C:\WINDOWS\SYSTEM32\CRYPT32.dll               77d20000 - 77e87000: C:\WINDOWS\SYSTEM32\ntdll.dll  Primitive trace:replaceFrom:to:with:startingAt:replaceFrom:to:with:startingAt:replaceFrom:to:with:startingAt:replaceFrom:to:with:startingAt:basicNew:replaceFrom:to:with:startingAt:basicNewplatformIdbasicNewat:compare:with:collated:at:at:at:at:new:at:put:basicNew:replaceFrom:to:with:startingAt:replaceFrom:to:with:startingAt:stringHash:initialHash:compare:with:collated:compare:with:collated:perform:basicNew:basicNewat:put:at:put:at:put:at:put:basicNew:replaceFrom:to:with:startingAt:basicNew:at:put:at:put:at:put:at:put:basicNew:basicNewbasicNew:replaceFrom:to:with:startingAt:replaceFrom:to:with:startingAt:replaceFrom:to:with:startingAt:at:put:at:put:at:put:at:put:at:put:basicNew:replaceFrom:to:with:startingAt:objectAt:basicNewat:compare:with:collated:at:at:at:at:objectAt:newMethod:header:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:at:put:objectAt:objectAt:objectAt:put:objectAt:objectAt:put:objectAt:objectAt:put:objectAt:objectAt:put:objectAt:objectAt:put:objectAt:objectAt:put:objectAt:objectAt:shallowCopyshallowCopybasicAt:put:shallowCopybasicAt:put:objectAt:objectAt:put:at:at:put:at:at:put:at:at:put:at:at:put:at:at:put:at:at:put:at:at:put:objectAt:objectAt:objectAt:objectAt:flushCacheat:put:objectAt:objectAt:new:tempAt:at:put:terminateTo:objectAt:objectAt:perform:withArguments:odbx_finish:   Stack backtrace:               [77D5D509] RtlGetAppContainerParent + 1082 in ntdll.dll               [77D5D289] RtlGetAppContainerParent + 442 in ntdll.dll               [779E9A15] free + 57 in msvcrt.dll               [70D81358] odbxdrv_register + 472 in libmysqlbackend-1.dll               [643C157F] odbx_finish + 63 in libopendbx-1.dll               [130BE27F] ??? + 0 in (null)               [0053CF25] ??? + 1298213 in Pharo.exe   Smalltalk stack dump: 0x2560a0 M NBFFICallout class(NBNativeCodeGen class)>retrySend: 0x107f1524: a(n) NBFFICallout class 0x2560c4 I NBPharoOpenDBX>apiFinalize: 0x12989e54: a(n) NBPharoOpenDBX 0x2560ec I DBXMySQLBackend(DBXBackend)>disconnectConnection: 0x12982a94: a(n) DBXMySQLBackend 0x24473c I DBXConnection>releaseConnection 0x12982ac0: a(n) DBXConnection 0x24475c I DBXConnection>disconnect 0x12982ac0: a(n) DBXConnection  0x24477c I [] in DBXConnection>open 0x12982ac0: a(n) DBXConnection 0x244798 M BlockClosure>cull: 0x1301c2f4: a(n) BlockClosure 0x2447b8 M [] in MethodContext(ContextPart)>handleSignal: 0x1301c3bc: a(n) MethodContext 0x2447d8 M BlockClosure>ensure: 0x1305d630: a(n) BlockClosure 0x2447f8 M MethodContext(ContextPart)>handleSignal: 0x1301c3bc: a(n) MethodContext 0x244814 M DBXFatalError(Exception)>signal 0x1305d380: a(n) DBXFatalError 0x24482c M DBXFatalError(Exception)>signal: 0x1305d380: a(n) DBXFatalError 0x244848 M DBXFatalError class(Exception class)>signal: 0x11ec3450: a(n) DBXFatalError class 0x24486c I DBXFatalError class(DBXError class)>signal: 0x11ec3450: a(n) DBXFatalError class 0x244898 I DBXMySQLBackend(DBXBackend)>errorCode:handle: 0x12982a94: a(n) DBXMySQLBackend 0x2448c0 I DBXMySQLBackend(DBXBackend)>verifyError:handle: 0x12982a94: a(n) DBXMySQLBackend 0x2448ec I DBXMySQLBackend(DBXBackend)>openConnection: 0x12982a94: a(n) DBXMySQLBackend 0x261f6c I [] in DBXConnection>open 0x12982ac0: a(n) DBXConnection 0x261f88 M BlockClosure>on:do: 0x1301c2e4: a(n) BlockClosure 0x261fb0 I DBXConnection>open 0x12982ac0: a(n) DBXConnection 0x261fc8 M UndefinedObject>(nil) 0x10140004: a(n) UndefinedObject 0x261ff8 I OpalCompiler>evaluate 0x1301bac0: a(n) OpalCompiler 0x262024 I RubSmalltalkEditor>evaluateSelectionAndDo: 0x11e40494: a(n) RubSmalltalkEditor 0x262044 M [] in GLMMorphicPharoPlaygroundRenderer(GLMMorphicPharoCodeRenderer)>actOnEvaluateSelection: 0x11e3f198: a(n) GLMMorphicPharoPlaygroundRenderer 0x262064 M WorldState>runStepMethodsIn: 0x106eec74: a(n) WorldState 0x262080 M WorldMorph>runStepMethods 0x106eec40: a(n) WorldMorph 0x262098 M WorldState>doOneCycleNowFor: 0x106eec74: a(n) WorldState 0x2620b4 M WorldState>doOneCycleFor: 0x106eec74: a(n) WorldState 0x2620d0 M WorldMorph>doOneCycle 0x106eec40: a(n) WorldMorph 0x2620f0 I [] in MorphicUIManager>spawnNewProcess 0x10822ab4: a(n) MorphicUIManager0x11f0c594 s [] in BlockClosure>newProcess Â