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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jan 2022 04:12:06 -0000 I get this a lot: 0 [waitproc] cm3 7641 proc_waiter: error on read of child wait pipe 0= x0, Win32 error 6 452 [waitproc] cm3 7641 proc_waiter: error on read of child wait pipe 0= x0, Win32 error 6 716 [waitproc] cm3 7641 proc_waiter: error on read of child wait pipe 0= x0, Win32 error 6 1652 [waitproc] cm3 7641 proc_waiter: error on read of child wait pipe 0= x0, Win32 error 6 0 [main] sh 7775 C:\cygwin64\bin\sh.exe: *** fatal error - internal e= rror reading the windows environment - too many environment variables? Scenario is multi-threaded "launching" a bunch of invocations of gcc. "launching" was usually spawnve or fork/execve but I changed the code to us= e system and it still happens. I might try to make a small reproducing, if this is not known. It seems a bit difficult to believe I could cause this internal looking err= or. Thank you, - Jay