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Date: | Sat, 16 Mar 2019 10:20:59 +0100 |
Message-ID: | <51987a7859475523111d48a2e503d8c2@smtp-cloud9.xs4all.net> |
From: | Houder <houder AT xs4all DOT nl> |
Reply-To: | cygwin AT cygwin DOT com |
To: | cygwin AT cygwin DOT com |
Subject: | Re: sshd: fatal: seteuid XXX : No such device or address |
References: | <011a01d4da5a$96247330$c26d5990$@giraudbtp.com> <e9e7c00dbd22a379d425097a72aab8a1 AT smtp-cloud8 DOT xs4all DOT net> <20190314172918 DOT GJ3785 AT calimero DOT vinschen DOT de> <b54aa3b16b27cb12479f382d1ff30e88 AT smtp-cloud9 DOT xs4all DOT net> <20190315134247 DOT GR3785 AT calimero DOT vinschen DOT de> <7dcabfa538edb7ed869b8b26205aeee9 AT smtp-cloud7 DOT xs4all DOT net> <20190315204122 DOT GU3785 AT calimero DOT vinschen DOT de> |
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On Fri, 15 Mar 2019 21:41:22, Corinna Vinschen wrote: > On Mar 15 20:39, Houder wrote: > > On Fri, 15 Mar 2019 14:42:47, Corinna Vinschen wrote: [snip] > > > Well, there *is* a solution by using strace. And hey, we now know what > > > ENXIO returned from seteuid means, don't we? It's not all bad :) > > > > You do! I do not :-) (as I do not have the machinery at my disposal that > > is required to provoke this error). > > If I'm not mistaken the error occurs for local machine accounts, not for > domain accounts. But either way, this problem can only be straced on > machines which can reproduce the problem and that's usually the machine > of the OP in the first place. OP's machine (or equivalent)? Basically, that is what I stated above (i.e. attempting to state) ... Error occurs for local machine accounts? Yes, but not at my place! (I did not see the error (ENXIO) when the sshd problem came up when cygwin 3 was introduced -- because I "loop back" when using ssh). > I'm not sure what you're asking for, what do you want to change in > Cygwin? To answer the 2nd part of your question: nothing! (even if I was capable of changing Cygwin). I can appreciate(?) the complexity of mapping "Linux" to Windows. Simple enough (?) in case of something like reading/writing a file, because that concept (general enough to be) is present in both Windows and "Linux". Totally different in case of seteuid() and companions ... (Could the error reporting be improved if the Linux system call would be a parameter when mapping Windows failure codes to "Linux" error codes? I believe that would be very, very troublesome) To answer the 1st part of your question ... .. well, I had hoped that you had seen what Windows function had caused the "No such device or address" error message to appear ... (and was willing to share that info :-). I know that you were the one that introduced ERROR_FILE_INVALID and made it map to ENXIO (in 2001 ... good gracious, almost 20 years ago). Presumably, because of the empty file problem in av::setup(), a function in winsup/cygwin/spawn.cc. Error code ENXIO occurs at a very different level (lower) in Linux than the level where seteuid() and companions live ... That is why I was wondering? what made seteuid() in Cygwin generate this error ... So, basically, my interest comes down to curiosity! (and I assumed that you had seen the error appear when the sshd problem came up). End of thread? :-) Henri ===== -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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