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From: Mark Millard <markmi@dsl-only.net>
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Subject: Fwd: Sendmail eats CPU on r317039 [after -r316874 it may be -r316951
 and -r316973 are not enough to fix everything]
Date: Mon, 17 Apr 2017 07:57:39 -0700
References: <CAOQrpVcMaJMdumOKGkUxMHPD-rGWQHbaLm3EsWagJp2wt_8KWg@mail.gmail.com>
Cc: Tom Vijlbrief <tvijlbrief@gmail.com>,
 FreeBSD Current <freebsd-current@freebsd.org>,
 freebsd-arm <freebsd-arm@freebsd.org>
To: sobomax@FreeBSD.org,
 hrs@FreeBSD.org
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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>
>=20
> On a recent kernel sendmail is constantly consuming CPU.
>=20
> truss -p PID
>=20
> shows:
>=20
> sendto(3,"<22>Apr 17 10:30:33 sendmail[362"...,163,0x0,NULL,0) ERR#55 =
'No
> buffer space available'
> nanosleep({ 0.000001000 }) =3D 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 })
> ...
>=20
> This is on an arm64 system

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

=3D=3D=3D
Mark Millard
markmi at dsl-only.net