Hi David,I don't think is an issue of warning, even if I apply your patch I have the same error, see: https://imgur.com/a/pYcLLWx
To reproduce the bug: Be on Big Sur 11.6.3 (20G415) https://support.apple.com/en-us/HT213055Download Pharo 8: curl https://get.pharo.org/64/80+vm|bash Open the image and evaluate ina playground:Metacello new configuration: 'OSProcess'; repository: 'http://www.squeaksource.com/MetacelloRepository'; load . and then (PipeableOSProcess command: 'ps') output. The bug will show itself CheersDavide On Friday, February 4, 2022, 04:39:28 PM GMT+1, David T. Lewis <le...@mail.msen.com> wrote: Hi Davide, Actually the warning has been removed in newer versions of OSProcess. I do not have time to do an update for Pharo now, but in the mean time you can apply this change in your image to remove the notifier: AioEventHandler>>initializeForExceptions: exceptionEventFlag readEvents: readEventFlag writeEvents: writeEventFlag semaphore := Semaphore new. semaIndex := Smalltalk registerExternalObject: semaphore. (AioPluginPresent = true) ifTrue: [ ([self aioEnable: self descriptor forSemaphore: self semaIndex externalObject: true] on: Warning do: [:e | self close. "unregister the semaphore" OSProcess trace: e messageText asString. nil]) ifNotNil: [handlerProc := self handleExceptions: exceptionEventFlag readEvents: readEventFlag writeEvents: writeEventFlag]] HTH, Dave On Fri, Feb 04, 2022 at 03:05:57PM +0000, Davide Varvello wrote: > Hi David,That's weird because if the AioPlugin is not present in my >VM,??PipeableOSProcess shouldn't have worked till this morning... when I >upgraded my mac :-) > The warning is not skippable, it stops me at:??MessageNotUnderstood: IRJump>> > #nextBytecodeOffsetAfterJumpCheersDavide > > On Friday, February 4, 2022, 03:54:59 PM GMT+1, David T. Lewis ><le...@mail.msen.com> wrote: > > On Fri, Feb 04, 2022 at 01:46:46PM +0000, Davide Varvello via Pharo-users >wrote: > > Hi guys, > > Suddenly evaluating a simple: (PipeableOSProcess command: 'ps') output, or > > any other PipeableOSProcess command, Pharo gives me: "aio event forwarding > > not supported". > > I guess it is something related to the latest update of the OS, > > specifically Big Sur 11.6.3 (20G415) > > https://support.apple.com/en-us/HT213055I'm on a Mac, of course, Pharo > > 8.0.0, Build information: > > Pharo-8.0.0+build.1128.sha.9f6475d88dda7d83acdeeda794df35d304cf620d (64 Bit) > > Can you help me, please?CheersDavide > > Hi Davide, > > The warning message indicates that the AioPlugin is not present > in your VM. I do not know the reason for that, although your > PipeableOSProcess should still work if you proceed through the > warning. > > Dave > >
