Date: Tue, 08 Nov 2016 08:45:37 -0800 (PST) From: Anton Shterenlikht <mexas@bris.ac.uk> To: freebsd-questions@freebsd.org Subject: tcsh or mail hang? Message-ID: <201611081645.uA8Gja3r029034@mech-as222.men.bris.ac.uk>
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Last couple of months or so I occasionally get apparent hangs in mail(1) on sending mail, i.e. after hitting CTRL/D. The system was 10.3 and now is 11.0. I use mail(1) interactively in tcsh(1), connecting via ssh. The host is active, and I can always login via a new ssh connection. When I do login via a separate ssh connection, I see no mail process in top or ps -axwwdd, e.g.: 27486 - Is 0:00.02 | |-- sshd: mexas [priv] (sshd) 27488 - I 0:00.32 | | `-- sshd: mexas@pts/0 (sshd) 27489 0 Is+ 0:00.10 | | `-- -tcsh (tcsh) 28149 - Is 0:00.02 | |-- sshd: mexas [priv] (sshd) 28151 - I 0:16.19 | | `-- sshd: mexas@pts/1 (sshd) 28152 1 Is 0:00.03 | | `-- -tcsh (tcsh) 28158 1 I+ 0:24.27 | | `-- ssh -Y <...> While I'm blaming mail(1), the problem might be in tcsh(1) or ssh connection, or some rare combination of all three. Has anybody else seen this? Thanks Anton
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