Date: Fri, 29 Jun 2018 08:56:43 -0700 From: Michael Sierchio <kudzu@tenebras.com> To: Doug Hardie <bc979@lafn.org> Cc: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: Signal 6 Message-ID: <CAHu1Y71%2Bk4aOgeMh-muxfM7qb2vCNjGsgYYyVstB=TrDto92zg@mail.gmail.com> In-Reply-To: <0D66C7A3-EBE6-475C-8360-CAFEAEA4D328@mail.sermon-archive.info> References: <0D66C7A3-EBE6-475C-8360-CAFEAEA4D328@mail.sermon-archive.info>
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Are there process limits? malloc() will call abort() if internal structures are munged (e.g., by heap overflow). calling free() on a corrupted pointer does that reliably is the root partition big enough for the dump? =3D M On Fri, Jun 29, 2018 at 8:40 AM, Doug Hardie <bc979@lafn.org> wrote: > I have a daemon process that runs forever (almost). Something is killing > it with a signal 6, but no core dump is done. If I manually kill it with > kill -6, then the log message shows core dumped and a core file is > created. The process has no reference to SIG_ABRT, so I suspect the kern= el > is doing the kill and is overriding the core dump. I have previously > encountered a similar issue where swap space was running out and the kern= el > killed this process without a core dump. In that case there were quite a > few messages logged about swap space issues before the process was killed= . > There are no swap messages logged this time. > > /etc/sysctl.conf contains: > kern.sugid_coredump=3D1 > kern.corefile=3D/crash/%N.core > > /crash is a directory in the root file system. > > Other than swap issues, when would the kernel kill a process without a > core dump? > > -- Doug > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org" > --=20 "Well," Brahma said, "even after ten thousand explanations, a fool is no wiser, but an intelligent person requires only two thousand five hundred." - The Mah=C4=81bh=C4=81rata
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