Suggested labels: Known Build Error, test-failure, os-ios, arch-arm64, untriaged
Note: This issue was automatically generated by AI-Test-Triage. Please review and triage accordingly.
Build Information
Build: 20260228.1, 20260302.109
Build error leg or test failing: System.Runtime.Tests.WorkItemExecution, JIT_r.WorkItemExecution, Methodical_ro.WorkItemExecution, Regression_4.WorkItemExecution, Regression_9.WorkItemExecution, Regression_o_1.WorkItemExecution
Affected CI jobs: build_ios_arm64_Release_AllSubsets_Mono_Smoke, build_ios_arm64_Release_AllSubsets_CoreCLR_RuntimeTests
Causing Commit Range Information
Commit range: {TODO: Insert commit range or link to changes}
Summary
- AOT precompilation aborted due to IO error: 'No space left on device' while emitting AOT object files (.r2r.o/.dll).
- Occurs during AOT/crossgen2 proxy builds for iOS on helix macOS (ios-arm64 jobs across Mono and CoreCLR runtime tests).
- Link step (clang) then fails with 'no such file or directory' for the missing .r2r.o and MSBuild reports MSB3073; work item exits with code 21.
- App signing fails due to missing embedded.mobileprovision, consistent with build artifacts not being produced because of the disk-full error.
Failure Statistics
Note: These statistics are based on the configured time range and might not reflect the full history of the failure.
- Occurrence Count: 6
- First Failure: 2026-03-01 07:02:29 UTC
- Last Failure: 2026-03-03 01:45:26 UTC
Work Items
| Work Item |
Console Log |
Build |
Job Name |
| System.Runtime.Tests Work Item |
View Extract [aot-instances.dll] Exec (with response file contents expanded) in /tmp/helix/working/B5DF0992/w/AAD4099B/e/publish: MONO_PATH=/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish: MONO_ENV_OPTIONS= /tmp/helix/working/B5DF0992/p/build/cross/mono-aot-cross -O=gsharedvt -O=gsharedvt --debug --llvm "--aot=...data-outfile=/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/aot-instances.aotdata" "/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/aot-instances.dll"
/tmp/helix/working/B5DF0992/p/build/apple/AppleBuild.targets(260,5): error : Precompiling failed for /tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/aot-instances.dll with exit code 1. [/private/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/ProxyProjectForAOTOnHelix.proj]
/tmp/helix/working/B5DF0992/p/build/apple/AppleBuild.targets(260,5): error : LLVM ERROR: IO failure on output stream: No space left on device [/private/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/ProxyProjectForAOTOnHelix.proj]
/tmp/helix/working/B5DF0992/p/build/apple/AppleBuild.targets(260,5): error : Mono Ahead of Time compiler - compiling assembly /private/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/aot-instances.dll [/private/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/ProxyProjectForAOTOnHelix.proj]
/tmp/helix/working/B5DF0992/p/build/apple/AppleBuild.targets(260,5): error : AOTID 5B991E96-4324-423B-54EC-3DFA141B7D02 [/private/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/ProxyProjectForAOTOnHelix.proj]
/tmp/helix/working/B5DF0992/p/build/apple/AppleBuild.targets(260,5): error : Adding 41336 dedup-ed methods. [/private/tmp/helix/working/B5DF0992/w/AAD4099B/e/publish/ProxyProjectForAOTOnHelix.proj]
Signing bundle /tmp/helix/working/B5DF0992/w/AAD4099B/e/System.Runtime.Tests.app
No embedded provisioning profile found at /tmp/helix/working/B5DF0992/w/AAD4099B/e/System.Runtime.Tests.app/embedded.mobileprovision! Failed to sign the app!
+ exit_code=21 |
20260302.109 |
build_ios_arm64_Release_AllSubsets_Mono_Smoke |
| JIT_r Work Item |
View Extract** Building a proxy for the original test project, to AOT on helix. In order to do that, this recreates the original inputs for the iOS/tvOS part of the build. See /private/tmp/helix/working/A6070931/w/A85408FC/e/publish/ProxyProjectForAOTOnHelix.proj, and . **
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : Error: No space left on device : '/tmp/helix/working/A6070931/w/A85408FC/e/obj/R2R/JIT_r.r2r.o' [/private/tmp/helix/working/A6070931/w/A85408FC/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : System.IO.IOException: No space left on device : '/tmp/helix/working/A6070931/w/A85408FC/e/obj/R2R/JIT_r.r2r.o' [/private/tmp/helix/working/A6070931/w/A85408FC/e/publish/ProxyProjectForAOTOnHelix.proj]
...
clang : error : no such file or directory: '/tmp/helix/working/A6070931/w/A85408FC/e/obj/R2R/JIT_r.r2r.o' [/private/tmp/helix/working/A6070931/w/A85408FC/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(666,5): error MSB3073: The command "...clang... /tmp/helix/working/A6070931/w/A85408FC/e/obj/R2R/JIT_r.r2r.o -o .../JIT_r.r2r.dylib" exited with code 1. [/private/tmp/helix/working/A6070931/w/A85408FC/e/publish/ProxyProjectForAOTOnHelix.proj]
Signing bundle /tmp/helix/working/A6070931/w/A85408FC/e/JIT_r.app
No embedded provisioning profile found at /tmp/helix/working/A6070931/w/A85408FC/e/JIT_r.app/embedded.mobileprovision! Failed to sign the app!
ls: /tmp/helix/working/A6070931/w/A85408FC/uploads/xunit-*.xml: No such file or directory
+ exit_code=21 |
20260228.1 |
build_ios_arm64_Release_AllSubsets_CoreCLR_RuntimeTests |
| Methodical_ro Work Item |
View Extract...
** Building a proxy for the original test project, to AOT on helix. In order to do that, this recreates the original inputs for the iOS/tvOS part of the build. See /private/tmp/helix/working/A6070931/w/A98E094E/e/publish/ProxyProjectForAOTOnHelix.proj, and . **
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : Error: No space left on device : '/tmp/helix/working/A6070931/w/A98E094E/e/obj/R2R/Methodical_ro.r2r.o' [/private/tmp/helix/working/A6070931/w/A98E094E/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : System.IO.IOException: No space left on device : '/tmp/helix/working/A6070931/w/A98E094E/e/obj/R2R/Methodical_ro.r2r.o' [/private/tmp/helix/working/A6070931/w/A98E094E/e/publish/ProxyProjectForAOTOnHelix.proj]
...
clang : error : no such file or directory: '/tmp/helix/working/A6070931/w/A98E094E/e/obj/R2R/Methodical_ro.r2r.o' [/private/tmp/helix/working/A6070931/w/A98E094E/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(666,5): error MSB3073: The command "... clang ... /tmp/helix/working/A6070931/w/A98E094E/e/obj/R2R/Methodical_ro.r2r.o -o ..." exited with code 1. [/private/tmp/helix/working/A6070931/w/A98E094E/e/publish/ProxyProjectForAOTOnHelix.proj]
Signing bundle /tmp/helix/working/A6070931/w/A98E094E/e/Methodical_ro.app
No embedded provisioning profile found at /tmp/helix/working/A6070931/w/A98E094E/e/Methodical_ro.app/embedded.mobileprovision! Failed to sign the app!
Removing empty log files:
ls: /tmp/helix/working/A6070931/w/A98E094E/uploads/xunit-*.xml: No such file or directory
+ exit_code=21
+ '[' -f /tmp/helix/working/A6070931/w/A98E094E/e/.retry ']' |
20260228.1 |
build_ios_arm64_Release_AllSubsets_CoreCLR_RuntimeTests |
| Regression_4 Work Item |
View Extract ** Building a proxy for the original test project, to AOT on helix. In order to do that, this recreates the original inputs for the iOS/tvOS part of the build. See /private/tmp/helix/working/A6070931/w/A45608D5/e/publish/ProxyProjectForAOTOnHelix.proj, and . **
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : Error: No space left on device : '/tmp/helix/working/A6070931/w/A45608D5/e/obj/R2R/Regression_4.r2r.o' [/private/tmp/helix/working/A6070931/w/A45608D5/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : System.IO.IOException: No space left on device : '/tmp/helix/working/A6070931/w/A45608D5/e/obj/R2R/Regression_4.r2r.o' [/private/tmp/helix/working/A6070931/w/A45608D5/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : at System.IO.RandomAccess.WriteAtOffset(SafeFileHandle handle, ReadOnlySpan`1 buffer, Int64 fileOffset) [/private/tmp/helix/working/A6070931/w/A45608D5/e/publish/ProxyProjectForAOTOnHelix.proj]
...
clang : error : no such file or directory: '/tmp/helix/working/A6070931/w/A45608D5/e/obj/R2R/Regression_4.r2r.o' [/private/tmp/helix/working/A6070931/w/A45608D5/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(666,5): error MSB3073: The command ""/Applications/Xcode_26.0.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -gz=zlib -isysroot "/Applications/Xcode_26.0.1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk" --target=arm64-apple-ios12.2-macho -dynamiclib -Wl,-dead_strip -Wl,-install_name,"@rpath/Regression_4.r2r.dylib" /tmp/helix/working/A6070931/w/A45608D5/e/obj/R2R/Regression_4.r2r.o -o /tmp/helix/working/A6070931/w/A45608D5/e/obj/R2R/Regression_4.r2r.dylib" exited with code 1. [/private/tmp/helix/working/A6070931/w/A45608D5/e/publish/ProxyProjectForAOTOnHelix.proj]
Signing bundle /tmp/helix/working/A6070931/w/A45608D5/e/Regression_4.app
No embedded provisioning profile found at /tmp/helix/working/A6070931/w/A45608D5/e/Regression_4.app/embedded.mobileprovision! Failed to sign the app!
+ exit_code=21 |
20260228.1 |
build_ios_arm64_Release_AllSubsets_CoreCLR_RuntimeTests |
| Regression_9 Work Item |
View Extract ** Building a proxy for the original test project, to AOT on helix. In order to do that, this recreates the original inputs for the iOS/tvOS part of the build. See /private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj, and . **
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : Error: No space left on device : '/tmp/helix/working/A6070931/w/B17F09D9/e/obj/R2R/Regression_9.r2r.o' [/private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : System.IO.IOException: No space left on device : '/tmp/helix/working/A6070931/w/B17F09D9/e/obj/R2R/Regression_9.r2r.o' [/private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : at System.IO.RandomAccess.WriteAtOffset(SafeFileHandle handle, ReadOnlySpan`1 buffer, Int64 fileOffset) [/private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : at ILCompiler.ObjectWriter.MachObjectWriter.EmitObjectFile(Stream outputFileStream) in /_/src/coreclr/tools/Common/Compiler/ObjectWriter/MachObjectWriter.cs:line 324 [/private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj]
clang : error : no such file or directory: '/tmp/helix/working/A6070931/w/B17F09D9/e/obj/R2R/Regression_9.r2r.o' [/private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(666,5): error MSB3073: The command ""/Applications/Xcode_26.0.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -gz=zlib -isysroot "/Applications/Xcode_26.0.1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.0.sdk" --target=arm64-apple-ios12.2-macho -dynamiclib -Wl,-dead_strip -Wl,-install_name,"@rpath/Regression_9.r2r.dylib" /tmp/helix/working/A6070931/w/B17F09D9/e/obj/R2R/Regression_9.r2r.o -o /tmp/helix/working/A6070931/w/B17F09D9/e/obj/R2R/Regression_9.r2r.dylib" exited with code 1. [/private/tmp/helix/working/A6070931/w/B17F09D9/e/publish/ProxyProjectForAOTOnHelix.proj]
Signing bundle /tmp/helix/working/A6070931/w/B17F09D9/e/Regression_9.app
No embedded provisioning profile found at /tmp/helix/working/A6070931/w/B17F09D9/e/Regression_9.app/embedded.mobileprovision! Failed to sign the app!
+ exit_code=21 |
20260228.1 |
build_ios_arm64_Release_AllSubsets_CoreCLR_RuntimeTests |
| Regression_o_1 Work Item |
View Extract/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : Error: No space left on device : '/tmp/helix/working/A6070931/w/A36F0930/e/obj/R2R/Regression_o_1.r2r.o'
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : System.IO.IOException: No space left on device : '/tmp/helix/working/A6070931/w/A36F0930/e/obj/R2R/Regression_o_1.r2r.o'
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : at ILCompiler.ObjectWriter.MachObjectWriter.EmitObjectFile(Stream outputFileStream) in //src/coreclr/tools/Common/Compiler/ObjectWriter/MachObjectWriter.cs:line 324
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(488,5): error : at ILCompiler.Program.Run() in //src/coreclr/tools/aot/crossgen2/Program.cs:line 314
clang : error : no such file or directory: '/tmp/helix/working/A6070931/w/A36F0930/e/obj/R2R/Regression_o_1.r2r.o' [/private/tmp/helix/working/A6070931/w/A36F0930/e/publish/ProxyProjectForAOTOnHelix.proj]
/private/tmp/helix/working/A6070931/p/dotnet-cli/sdk/11.0.100-preview.1.26104.118/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.CrossGen.targets(666,5): error MSB3073: The command "... clang ... /tmp/helix/working/A6070931/w/A36F0930/e/obj/R2R/Regression_o_1.r2r.o -o ..." exited with code 1. [/private/tmp/helix/working/A6070931/w/A36F0930/e/publish/ProxyProjectForAOTOnHelix.proj]
Signing bundle /tmp/helix/working/A6070931/w/A36F0930/e/Regression_o_1.app
No embedded provisioning profile found at /tmp/helix/working/A6070931/w/A36F0930/e/Regression_o_1.app/embedded.mobileprovision! Failed to sign the app!
+ exit_code=21 |
20260228.1 |
build_ios_arm64_Release_AllSubsets_CoreCLR_RuntimeTests |
Error Message
{
"ErrorMessage": [
"osx.15.amd64.iphone.open",
"No space left on device"
],
"BuildRetry": false,
"ExcludeConsoleLog": false
}Report
Summary
| 24-Hour Hit Count |
7-Day Hit Count |
1-Month Count |
| 33 |
80 |
94 |
