Fwd: Sendmail eats CPU on r317039 [after -r316874 it may be -r316951 and -r316973 are not enough to fix everything]

[Mark Millard]

Just an FYI of a more recent report of runaway sendmail on a
more recent system version ( -r317039 ):

Begin forwarded message:

> From: Tom Vijlbrief <tvijlbrief at gmail.com>
> Subject: Sendmail eats CPU on r317039
> Date: April 17, 2017 at 3:39:37 AM PDT
> To: "freebsd-current at freebsd.org" <freebsd-current at freebsd.org>, freebsd-arm <freebsd-arm at freebsd.org>
> 
> On a recent kernel sendmail is constantly consuming CPU.
> 
> truss -p PID
> 
> shows:
> 
> sendto(3,"<22>Apr 17 10:30:33 sendmail[362"...,163,0x0,NULL,0) ERR#55 'No
> buffer space available'
> nanosleep({ 0.000001000 }) = 0 (0x0)
> sendto(3,"<22>Apr 17 10:30:33 sendmail[362"...,163,0x0,NULL,0) ERR#55 'No
> buffer space available'
> nanosleep({ 0.000001000 })
> ...
> 
> This is on an arm64 system

Analysis of Tom V.'s context for this may be required.

===
Mark Millard
markmi at dsl-only.net