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[Gardcs]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues, especially the pinned issues.

Exception report

### Environment
PSReadLine: 2.3.6+d2e770f93b7a53d8660a6402eb29d1ae1c35e767
PowerShell: 7.5.2
OS: Darwin 24.6.0 Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:40 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6041
BufferWidth: 214
BufferHeight: 61

Last 0 Keys:



### Exception

System.IO.IOException: The system cannot open the device or file specified. : 'PSReadLineHistoryFile_3510575987'. One or more system calls failed: open("/tmp/.dotnet/lockfiles/session25971/PSReadLineHistoryFile_3510575987", O_RDWR | O_CREAT | O_EXCL | O_CLOEXEC, 0) == -1; errno == ENOENT;
   at System.Threading.Mutex.CreateMutexCore(Boolean initiallyOwned, String name, Boolean& createdNew)
   at System.Threading.Mutex..ctor(Boolean initiallyOwned, String name)
   at Microsoft.PowerShell.PSConsoleReadLine.DelayedOneTimeInitialize()
   at Microsoft.PowerShell.PSConsoleReadLine.Initialize(Runspace runspace, EngineIntrinsics engineIntrinsics)
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken, Nullable`1 lastRunStatus)

Screenshot

No

Environment data

PSReadLine: 2.3.6+d2e770f93b7a53d8660a6402eb29d1ae1c35e767
PowerShell: 7.5.2
OS: Darwin 24.6.0 Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:40 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6041
BufferWidth: 214
BufferHeight: 61

Steps to reproduce

running pwsh when in zsh on mac

Expected behavior

i wnt pwsh to start

Actual behavior

returns error

System.IO.IOException: The system cannot open the device or file specified. : 'PSReadLineHistoryFile_3510575987'. One or more system calls failed: open("/tmp/.dotnet/lockfiles/session25971/PSReadLineHistoryFile_3510575987", O_RDWR | O_CREAT | O_EXCL | O_CLOEXEC, 0) == -1; errno == ENOENT;
at System.Threading.Mutex.CreateMutexCore(Boolean initiallyOwned, String name, Boolean& createdNew)
at System.Threading.Mutex..ctor(Boolean initiallyOwned, String name)
at Microsoft.PowerShell.PSConsoleReadLine.DelayedOneTimeInitialize()
at Microsoft.PowerShell.PSConsoleReadLine.Initialize(Runspace runspace, EngineIntrinsics engineIntrinsics)
at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken, Nullable`1 lastRunStatus)

[daxian-dbw]

The mutex creation failure could be caused by:

1. Your disk storage is full
2. The file system is read-only
3. Change the permission on /private/tmp, see the following comments for details
   • Cannot start powershell because of missing file on mac #3768 (comment)
   • Mutex constructor fails with "system cannot open the device or file specified" #1464 (comment)