Mutex constructor fails with "system cannot open the device or file specified"

Hi, Just beeing a good citizen, and doing as the console is asking me to do:

bash-3.2$ pwsh PowerShell 7.0.0 Copyright © Microsoft Corporation. All rights reserved.

https://aka.ms/powershell Type ‘help’ to get help.

PS /Users/stephanevg/Code/ansible-lab/Roles> Oops, something went wrong. Please report this bug with the details below. Report on GitHub: https://github.com/PowerShell/PSReadLine/issues/new

Environment

PSReadLine: 2.0.0 PowerShell: 7.0.0 OS: Darwin 19.3.0 Darwin Kernel Version 19.3.0: Thu Jan 9 20:58:23 PST 2020; root:xnu-6153.81.5~1/RELEASE_X86_64

Exception

System.IO.IOException: The system cannot open the device or file specified. : 'PSReadLineHistoryFile_1525368525'
   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)

[brainwipe]

Please keep closed, this is for others landing here.

This error message is also thrown when /tmp is full. You can check how much is free using:

df -k /tmp

If Available is 0 or Use% is 100, then /tmp is full.

How you then go about cleaning it depends on your use case. To remove any file that’s older than 10 days:

sudo find /tmp -type f -atime +10 -delete

Apologies for pinging this thread, it’s the top result in Google for the error as a search term.

[daxian-dbw]

@FiggyRoll Thanks for the confirmation. That’s great.

More user friendly error message will be great to have.

Agreed. Opened https://github.com/dotnet/runtime/issues/36823. Hopefully dotnet team can improve the error message. I will close this issue as resolved.