[Mono-dev] The beta version of ADO.NET provider for MaxDB database

Tue Aug 8 03:21:59 EDT 2006

Hi Dmitry,

Can you please file a bug on the second issue ? Regarding the third one,
if you are using the appropriate conversion classes both reading and
writing, hope there should not be any issue.

Thanks
Nagappan

Dmitry Key wrote:
> Hi, Nagappan
>
>> 1. The preview version of ADO.NET will be available with Mono 1.2.
>
> Ok
>
>> 2. Can you please give more details regarding the SIGSEGV ? Procedures
>> to reproduce the bug ?
> I try to run test cases which are working perfectly on .Net (see
> http://svn.sourceforge.net/viewvc/maxdbprovider/MaxDBConsole/UnitTesting/)
>
>
> the command line is
> nunit-console /fixture=MaxDB.UnitTesting.CommandTests MaxDB.Test.exe
>
> Output is
>
> NUnit version 2.2.7
> Copyright (C) 2002-2003 James W. Newkirk, Michael C. Two, Alexei A.
> Vorontsov, Charlie Poole.
> Copyright (C) 2000-2003 Philip Craig.
> All Rights Reserved.
>
> OS Version: Unix 2.6.8.2 Mono Version: 1.1.4322.2032
>
>
> =================================================================
> Got a SIGSEGV while executing native code. This usually indicates
> a fatal error in the mono runtime or one of the native libraries
> used by your application.
> =================================================================
>
> Stacktrace:
>
> in <0x4> (wrapper managed-to-native)
> System.Object:__icall_wrapper_g_free (intptr)
> in <0x6b9d0c> (wrapper managed-to-native)
> System.Object:__icall_wrapper_g_free (intptr)
> in <0xffffff19> (wrapper managed-to-native)
> MaxDB.Data.Utilities.UnsafeNativeMethods:SQLDBC_ErrorHndl_getSQLState
> (intptr)
> in <0x31> MaxDB.Data.MaxDBException:ThrowException
> (string,intptr,System.Exception)
> in <0xf> MaxDB.Data.MaxDBException:ThrowException (string,intptr)
> in <0x1b8> MaxDB.Data.MaxDBCommand:BindAndExecute
> (intptr,MaxDB.Data.MaxDBParameterCollection[])
> in <0xb8> MaxDB.Data.MaxDBCommand:ExecuteNonQuery ()
> in <0x3a> MaxDB.UnitTesting.BaseTest:ExecuteNonQuery (string)
> in <0x19> MaxDB.UnitTesting.BaseTest:DropTestTable ()
> in <0x100> MaxDB.UnitTesting.BaseTest:Init (string)
> in <0xf> MaxDB.UnitTesting.CommandTests:SetUp ()
> in <0xfef34747> (wrapper runtime-invoke)
> System.Object:runtime_invoke_void (object,intptr,intptr,intptr)
> in <0x4> (wrapper managed-to-native)
> System.Reflection.MonoMethod:InternalInvoke (object,object[])
> in <0x23418d> (wrapper managed-to-native)
> System.Reflection.MonoMethod:InternalInvoke (object,object[])
> in <0x8d> System.Reflection.MonoMethod:Invoke
> (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
>
> in <0x1a> System.Reflection.MethodBase:Invoke (object,object[])
> in <0x2d> NUnit.Core.Reflect:InvokeMethod
> (System.Reflection.MethodInfo,object)
> in <0x5f> NUnit.Core.TestFixture:DoFixtureSetUp (NUnit.Core.TestResult)
> in <0xcb> NUnit.Core.TestSuite:DoOneTimeSetUp (NUnit.Core.TestResult)
> in <0xd1> NUnit.Core.TestSuite:Run
> (NUnit.Core.EventListener,NUnit.Core.IFilter)
> in <0x1e7> NUnit.Core.TestSuite:RunAllTests
> (NUnit.Core.TestSuiteResult,NUnit.Core.EventListener,NUnit.Core.IFilter)
> in <0xe4> NUnit.Core.TestSuite:Run
> (NUnit.Core.EventListener,NUnit.Core.IFilter)
> in <0x155> NUnit.Core.SimpleTestRunner:Run
> (NUnit.Core.EventListener,NUnit.Core.Test[])
> in <0x60> NUnit.Core.SimpleTestRunner:Run
> (NUnit.Core.EventListener,string[])
> in <0x2c> NUnit.Core.TestRunnerThread:TestRunnerThreadProc ()
> in <0xfffaf630> (wrapper delegate-invoke)
> System.MulticastDelegate:invoke_void ()
> in <0xff173af7> (wrapper runtime-invoke)
> System.Object:runtime_invoke_void (object,intptr,intptr,intptr)
>
> Native stacktrace:
>
> /usr/lib/libmono.so.0(mono_handle_native_sigsegv+0xe5) [0x40094485]
> /usr/lib/libmono.so.0 [0x400554dd]
> [0xffffe440]
> /usr/lib/libglib-2.0.so.0(g_free+0x22) [0x40224c92]
> [0x4112f283]
> [0x417e8f6d]
> [0x417e8e4a]
> [0x417e8e00]
> [0x417e3ec9]
> [0x417e3571]
> [0x417e3173]
> [0x417e30c2]
> [0x41146121]
> [0x41145d98]
> [0x4113e1a1]
> /usr/lib/libmono.so.0 [0x400728c0]
> /usr/lib/libmono.so.0(mono_runtime_invoke+0x33) [0x400d68c3]
> /usr/lib/libmono.so.0(mono_runtime_invoke_array+0x1b0) [0x400dae20]
> /usr/lib/libmono.so.0 [0x400e1e17]
> [0x40eef02a]
> [0x4112318e]
> [0x40f44e03]
> [0x41145d06]
> [0x4113dea0]
> [0x4113d764]
> [0x4113d3f2]
> [0x4113d9b8]
> [0x4113d405]
> [0x4113ceee]
> [0x4113cd49]
> [0x4113cc9d]
> [0x40f4f7f0]
> [0x40efedf1]
> /usr/lib/libmono.so.0 [0x400728c0]
> /usr/lib/libmono.so.0(mono_runtime_invoke+0x33) [0x400d68c3]
> /usr/lib/libmono.so.0(mono_runtime_delegate_invoke+0x46) [0x400d7bc6]
> /usr/lib/libmono.so.0 [0x4010a2d6]
> /usr/lib/libmono.so.0 [0x40157794]
> /usr/lib/libmono.so.0(GC_start_routine+0x63) [0x40172f03]
> /lib/tls/libpthread.so.0 [0x40299cfd]
> /lib/tls/libc.so.6(__clone+0x5e) [0x403a413e]
> Aborted
>
> I ran these tests on Debian Linux/Mono 1.1.13 and SLES 9/Mono 1.1.16.
> As far as I understand the problem is the function from SQLDBC_C
> library SQLDBC_ErrorHndl_getSQLState. But if I remove this function
> the following output takes place:
>
> NUnit version 2.2.7
> Copyright (C) 2002-2003 James W. Newkirk, Michael C. Two, Alexei A.
> Vorontsov, Charlie Poole.
> Copyright (C) 2000-2003 Philip Craig.
> All Rights Reserved.
>
> OS Version: Unix 2.6.8.2 Mono Version: 1.1.4322.2032
>
> ..*** glibc detected *** double free or corruption (!prev): 0x084d0b78
> ***
> Aborted
>
>> 3. For running the general tests in Big Endian should be same as Little
>> Endian hardware. Recently lot of bugs related to Big Endian has been
>> fixed. So, there should not be any major concern. If you have any
>> issues, please let us know
>
> The MaxDB network protocol is byte-order specific. That is why I would
> like to check my protocol implementation on BigEndian hardware.
> Unfortunately I have access to x86-32 hardware only.
>
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-- 
Nagappan A <anagappan at novell.com>
Novell Software Development (I) Pvt. Ltd.
Linux Desktop Testing Project - http://ldtp.freedesktop.org
http://nagappanal.blogspot.com/

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