Description
dotnet-sos version '5.0.160202' has a regression in the clru sos command.
Previous versions were working correctly, but a recent update makes it fail against .NET Core 5.0.102 and 3.1.111.
Here's an example lldb session that fails:
Added Microsoft public symbol server
(lldb) target create --core "coredump.72457"
Core file '/home/dotnet/dotnet3.1/tests/workdir/dotnet-regular-tests/debugging-sos-lldb-via-core/TestDir/coredump.72457' (x86_64) was loaded.
(lldb) ip2md 00007f2df81d986e
MethodDesc: 00007f2df91aadb0
Method Name: ILStubClass.IL_STUB_PInvoke(System.Runtime.InteropServices.SafeHandle, Byte*, Int32)
Class: 00007f2df8e29ca0
MethodTable: 00007f2df8e29d08
mdToken: 0000000006000000
Module: 00007f2df831b828
IsJitted: yes
Current CodeAddr: 00007f2df81d97d0
Version History:
ILCodeVersion: 0000000000000000
ReJIT ID: 0
IL Addr: 0000000000000000
CodeAddr: 00007f2df81d97d0 (Optimized)
NativeCodeVersion: 0000000000000000
(lldb) clru 00007f2df81d986e
Normal JIT generated code
ILStubClass.IL_STUB_PInvoke(System.Runtime.InteropServices.SafeHandle, Byte*, Int32)
Unknown error in reading function IL
ilAddr is 0000000000000000
u 00007f2df81d986e failed
Here is a test script that runs through a number of sos commands:https://github.com/redhat-developer/dotnet-regular-tests/blob/c05ff0d1cbf6123640f6993f93b83fb78f7e25aa/debugging-sos-lldb-via-core/test.sh
It started failing with the above error this week.
Configuration
- Is this related to a specific tool?
- What OS and version, and what distro if applicable?
- I am seeing this on Linux on the RHEL 8.4 development branch
- This might even be a bug in lldb?
- What is the architecture (x64, x86, ARM, ARM64)?
- Are you running in any particular type of environment? (e.g. Containers, a cloud scenario, app you are trying to target is a different user)
- I can reproduce the error locally within a VM with a fresh user
- Is it a self-contained published application?
- No, this is basically:
dotnet new web && dotnet run && dotnet dump; lldb
- What's the output of
dotnet info
$ dotnet --info
.NET Core SDK (reflecting any global.json):
Version: 3.1.111
Commit: a9538e031d
Runtime Environment:
OS Name: rhel
OS Version: 8
OS Platform: Linux
RID: rhel.8-x64
Base Path: /usr/lib64/dotnet/sdk/3.1.111/
Host (useful for support):
Version: 3.1.11
Commit: f5eceb8105
.NET Core SDKs installed:
3.1.111 [/usr/lib64/dotnet/sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.App 3.1.11 [/usr/lib64/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 3.1.11 [/usr/lib64/dotnet/shared/Microsoft.NETCore.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download
Regression?
Yes. This was working with RHEL 8.3 with .NET Core releases (5.0.100, 3.1.110), as late as December last year.
The package versions, if that's relevant:
$ rpm -qa | grep -E 'lldb|clang|dotnet|gcc|glibc' | sort -u
clang-11.0.0-0.2.rc2.module+el8.4.0+8195+484edabc.x86_64
clang-devel-11.0.0-0.2.rc2.module+el8.4.0+8195+484edabc.x86_64
clang-libs-11.0.0-0.2.rc2.module+el8.4.0+8195+484edabc.x86_64
clang-tools-extra-11.0.0-0.2.rc2.module+el8.4.0+8195+484edabc.x86_64
dotnet-5.0.102-2.el8.x86_64
dotnet-apphost-pack-5.0-5.0.2-2.el8.x86_64
dotnet-host-5.0.2-2.el8.x86_64
dotnet-hostfxr-5.0-5.0.2-2.el8.x86_64
dotnet-runtime-5.0-5.0.2-2.el8.x86_64
dotnet-sdk-5.0-5.0.102-2.el8.x86_64
dotnet-targeting-pack-5.0-5.0.2-2.el8.x86_64
dotnet-templates-5.0-5.0.102-2.el8.x86_64
gcc-8.4.1-1.el8.x86_64
gcc-c++-8.4.1-1.el8.x86_64
glibc-2.28-141.el8.x86_64
glibc-common-2.28-141.el8.x86_64
glibc-devel-2.28-141.el8.x86_64
glibc-headers-2.28-141.el8.x86_64
glibc-langpack-en-2.28-141.el8.x86_64
libgcc-8.4.1-1.el8.x86_64
lldb-11.0.0-0.1.rc2.module+el8.4.0+8195+484edabc.x86_64
lldb-devel-11.0.0-0.1.rc2.module+el8.4.0+8195+484edabc.x86_64
python3-lldb-11.0.0-0.1.rc2.module+el8.4.0+8195+484edabc.x86_64
Description
dotnet-sos version '5.0.160202' has a regression in the clru sos command.
Previous versions were working correctly, but a recent update makes it fail against .NET Core 5.0.102 and 3.1.111.
Here's an example lldb session that fails:
Here is a test script that runs through a number of sos commands:https://github.com/redhat-developer/dotnet-regular-tests/blob/c05ff0d1cbf6123640f6993f93b83fb78f7e25aa/debugging-sos-lldb-via-core/test.sh
It started failing with the above error this week.
Configuration
dotnet-sosdotnet new web && dotnet run && dotnet dump; lldbdotnet infoRegression?
Yes. This was working with RHEL 8.3 with .NET Core releases (5.0.100, 3.1.110), as late as December last year.
The package versions, if that's relevant: