tcsh or mail hang?
mexas at bris.ac.uk
Tue Nov 8 16:45:41 UTC 2016
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 at 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 at 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?
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