Stack trace flavour 3: -- :Stacktrace: - - at <unknown> <0xffffffff> - at (wrapper managed-to-native) System.Delegate.CreateDelegate_internal (System.Type,object,System.Reflection.MethodInfo,bool) <IL 0x00010, 0xffffffff> - at System.Delegate.CreateDelegate (System.Type,object,System.Reflection.MethodInfo,bool,bool) <0x0071a> - at System.Delegate.CreateDelegate (System.Type,object,System.Reflection.MethodInfo) <0x00021> - at System.Reflection.Emit.DynamicMethod.CreateDelegate (System.Type,object) <0x00043> - at System.Linq.Expressions.Compiler.LambdaCompiler.CreateDelegate () <IL 0x00022, 0x00094> - at System.Linq.Expressions.Compiler.LambdaCompiler.Compile (System.Linq.Expressions.LambdaExpression,System.Runtime.CompilerServices.DebugInfoGenerator) <IL 0x0001e, 0x000d6> - at System.Linq.Expressions.Expression`1.Compile () <IL 0x00002, 0x00016> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.VisitMemberAccess (System.Linq.Expressions.MemberExpression) <IL 0x000fe, 0x003a6> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.Visit (System.Linq.Expressions.Expression) <IL 0x000e3, 0x000e1> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.VisitBinary (System.Linq.Expressions.BinaryExpression) <IL 0x0016d, 0x00736> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.Visit (System.Linq.Expressions.Expression) <IL 0x000fd, 0x0016b> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.VisitLambda (System.Linq.Expressions.LambdaExpression) <IL 0x0005a, 0x00169> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.Visit (System.Linq.Expressions.Expression) <IL 0x000d6, 0x0009c> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.ProcessInternalExpression () <IL 0x0001a, 0x00073> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.And (System.Linq.Expressions.Expression`1<System.Func`2<T, bool>>) <IL 0x00027, 0x000f4> - at ServiceStack.OrmLite.SqlExpressionVisitor`1.Where (System.Linq.Expressions.Expression`1<System.Func`2<T, bool>>) <IL 0x00005, 0x00028> - at ServiceStack.OrmLite.ReadExtensions.Select<T> (System.Data.IDbCommand,System.Linq.Expressions.Expression`1<System.Func`2<T, bool>>) <IL 0x0000d, 0x0006e> - at ServiceStack.OrmLite.ReadConnectionExtensions/<>c__DisplayClassd`1.<Select>b__c (System.Data.IDbCommand) <IL 0x00007, 0x00046> -- :Native stacktrace: - - /usr/bin/mono() [0x4b23dc] - /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fc516460340] - /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x39) [0x7fc5160c1cc9] - /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7fc5160c50d8] - /usr/bin/mono() [0x629999] - /usr/bin/mono() [0x629ba7] - /usr/bin/mono() [0x629cf6] - /usr/bin/mono(mono_class_from_mono_type+0x37) [0x519b07] - /usr/bin/mono() [0x42a69a] - /usr/bin/mono() [0x42b301] - /usr/bin/mono() [0x42c89f] - /usr/bin/mono() [0x42d29b] - /usr/bin/mono() [0x5398f8] - [0x4115956d] - -Debug info from gdb: - -Could not attach to process. If your uid matches the uid of the target -process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try --
Stack trace flavour 4 (no non-native stacktrace): These vary a bit, but look pretty much like the below. -- :Stacktrace: - - :Native stacktrace: - - /usr/bin/mono() [0x4b23dc] - /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fb78e49c340] - /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x39) [0x7fb78e0fdcc9] - /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7fb78e1010d8] - /usr/bin/mono() [0x629999] - /usr/bin/mono() [0x629ba7] - /usr/bin/mono() [0x629cf6] - /usr/bin/mono() [0x6194dc] - /usr/bin/mono() [0x422086] - /usr/bin/mono() [0x5a7012] - /usr/bin/mono() [0x5b0720] - /usr/bin/mono() [0x5a1d99] - /usr/bin/mono() [0x5a1dd0] - /usr/bin/mono() [0x5a226d] - /usr/bin/mono() [0x5875f8] - /usr/bin/mono() [0x623b66] - /lib/x86_64-linux-gnu/libpthread.so.0(+0x8182) [0x7fb78e494182] - /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fb78e1c147d] - On 27 November 2015 at 20:31, River Satya <river.sa...@gmail.com> wrote: > Hi mono list, > > We see a lot of segfaults (~10 / day) in our program running on Ubuntu > Wheezy. I was hoping that upgrading to mono 4.2 would resolve it, but we're > still seeing them. > > The stack traces take a few different forms, so it's possible that they're > actually separate issues. > > We mostly see #1 and #4. #2 and #3 have only been seen in isolation, but > have more interesting stack traces. > > These look to me like mono bugs. Are any of these known issues? Is there > anything I can do to either work around them and/or assist in debugging > them? They're currently causing significant problems in a mission critical > piece of software for my client. > > (email split into pieces as the full version was rejected by the maillist > server). > > Thanks, > > River > >> >> Stack trace 1 (empty trace): >> :Stacktrace: >> - >> - >> :Native stacktrace: >> - >> Stack trace 2: >> -- >> :Stacktrace: >> - >> - at <unknown> <0xffffffff> >> - at (wrapper managed-to-native) >> object.__icall_wrapper_mono_gc_alloc_vector (intptr,intptr,intptr) <IL >> 0x0000f, 0xffffffff> >> - at (wrapper alloc) object.AllocVector (intptr,intptr) <IL 0x00088, >> 0xffffffff> >> - at System.Xml.XmlUtf8RawTextWriter..ctor >> (System.IO.Stream,System.Xml.XmlWriterSettings) <IL 0x00039, 0x000cf> >> - at System.Xml.XmlWriterSettings.CreateWriter (System.IO.Stream) <IL >> 0x00067, 0x00117> >> - at System.Xml.XmlWriter.Create >> (System.IO.Stream,System.Xml.XmlWriterSettings) <IL 0x0000f, 0x00066> >> - at >> <snip> rest of stack trace is in our code</snip> >> -- >> :Native stacktrace: >> - >> - /usr/bin/mono() [0x49cf0c] >> - /lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fb9e29e9340] >> - /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x39) [0x7fb9e264acc9] >> - /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7fb9e264e0d8] >> - /usr/bin/mono() [0x62a329] >> - /usr/bin/mono() [0x62a537] >> - /usr/bin/mono() [0x62a5e2] >> - /usr/bin/mono() [0x5ea7a6] >> - /usr/bin/mono() [0x5ecfe0] >> - /usr/bin/mono() [0x5f5af2] >> - /usr/bin/mono() [0x5f67aa] >> - /usr/bin/mono() [0x5ecb03] >> - /usr/bin/mono() [0x5dbf76] >> - /usr/bin/mono() [0x5e380d] >> - /usr/bin/mono() [0x5f99f8] >> - /usr/bin/mono() [0x5e5f63] >> - /usr/bin/mono() [0x5e805f] >> - /usr/bin/mono() [0x5db55d] >> - /usr/bin/mono() [0x5ca11e] >> -- > > > >
_______________________________________________ Mono-list maillist - Mono-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-list
