Date: Wed, 9 Dec 2015 15:31:26 -0600 From: Karl Denninger <karl@denninger.net> To: freebsd-stable@freebsd.org Subject: Re: Something in r291926 (and earlier) causes reboots during periodic daily (14 jails on system) Message-ID: <56689DAE.7030802@denninger.net> In-Reply-To: <3923D6D6-E907-4B6C-931A-12CD7B863415@ebureau.com> References: <20151209090049.000003db@Leidinger.net> <5667E86F.3050906@quip.cz> <20151209105144.000035be@Leidinger.net> <3923D6D6-E907-4B6C-931A-12CD7B863415@ebureau.com>
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[-- Attachment #1 --] I doubt very much that's involved; I have multiple production systems with dynamic_write_buffer turned on and I've yet to see a panic from periodic activity or anything like it. The only panic I've got open right now that's related to ZFS happens during a send/receive backup and it's able to be reproduced only with difficulty (it looks to be a problem in snapshot management as I've isolated it fairly well but haven't yet found the root cause) -- and it can be coaxed out of a bare "clean" -STABLE install with no ZFS patches in at all. (The codepath that results in the panic doesn't have a logical connection to that patch, but I tested without it anyway just to make sure.) On 12/9/2015 15:15, Dustin Wenz wrote: > Are you by chance using the ARC patch from this PR? > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=187594 > > Do you have a vfs.zfs.dynamic_write_buffer tunable defined, if so, what is it set to? > > - .Dustin > > >> On Dec 9, 2015, at 3:51 AM, Alexander Leidinger <Alexander@Leidinger.net> wrote: >> >> On Wed, 09 Dec 2015 09:38:07 +0100 >> Miroslav Lachman <000.fbsd@quip.cz> wrote: >> >>> Alexander Leidinger wrote on 12/09/2015 09:00: >>>> Does this ring a bell for someone or any ideas before I try to hunt >>>> this down? >>> The same problem was reported yesterday on Stable >>> >>> Periodic jobs triggering panics in 10.1 and 10.2 >>> https://lists.freebsd.org/pipermail/freebsd-stable/2015-December/083807.html >>> >>> Also ZFS with jails. >> The above mail has a backtrace involving ZFS. >> >> I'm running the periodic scripts serially now, 8 out of 14 already >> finished without issues. Smells like a concurrency issue. I would >> assume it's something introduced between 5 and 1 month ago and MFCed >> back to 10. >> >> Does this ring a bell for someone on fs@? >> >> Bye, >> Alexander. >> >> -- >> http://www.Leidinger.net Alexander@Leidinger.net: PGP 0xC773696B3BAC17DC >> http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0xC773696B3BAC17DC >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" -- Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ [-- Attachment #2 --] 0 *H 010 `He 0 *H _0[0C)0 *H 01 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA0 150421022159Z 200419022159Z0Z1 0 UUS10UFlorida10U Cuda Systems LLC1 0 UKarl Denninger (OCSP)0"0 *H 0 X@vkY Tq/vE]5#֯MX \8LJ/V?5Da+ sJc*/r{ȼnS+ w")ąZ^DtdCOZ ~7Q '@a#ijc۴oZdB&!Ӝ-< ? HN5y 5}F|e f"V لio74zn">a1qWuɖbFeGE&3(KhixG3!#e_XƬ Ϝ/,$+;4y 'Bz<qT9_?rRUpn5 Jn&Rx/p Jyel*pN8/#9u/YP EC)TY>~/˘N[vyiDKˉ ,^" ?$T8 v& K%z8C @?K{9f`+@,| Mbia 007++0)0'+0http://cudasystems.net:88880 U 0 0 `HB0 U 0, `HB OpenSSL Generated Certificate0 U -h\Ff Y0 U #0$q}ݽʒm50 U 0karl@denninger.net0 *H Owbabɺx&Uk[ (Oj!%p MQ0I!#QH}.>~2&D}<wm_>V6 v ]f>=Nn+8;q wfΰ/RLyUG#b}n!Dր _up|_ǰc/%ۥ nN8:d;-UJd/m1~VނיnN I˾$tF1&}|?q?\đXԑ&\4V<lKۮ3%Am_(q -(cAeGX)f}-˥6cv~Kg8m~v ;|9:-iAPқ6ېn-.)<[$KJtt/L4ᖣ^Cmu4vb{+BG$M0c\[MR|0FԸP&78"4p# }D Z9;V9#>Sw"[UP710001 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA)0 `He M0 *H 1 *H 0 *H 1 151209213126Z0O *H 1B@NCZq) $Ğ-ЭT~z\ bl[*T%Jw0l *H 1_0]0 `He*0 `He0 *H 0*H 0 *H @0+0 *H (0 +71001 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA)0 *H 101 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA)0 *H J7[&Iwah*~7 /7}V?+E5Gr8184 W [?^<j9`K_AA{}zC@if9Ԋ!-d˄Pُ+h* }{69ZFl5gN; <ɡm,p9mM*ӡ\ZBi4jRjO\%Fx@`5`f3 5q]bRSt j/YVˀ>nzL :__ka֑c=l׀ʫC̰t#0*$C3:RU鮤R [)+8y*Ϋ5:aQe,p1p|8_طo҆tLD(7Dhݵ :ZpAB}jN~$/f@<ac9S<-}5 ~ ^^0MT<O9M¼˪c@*iLmYd0UW,~ ~|=W !Nhome | help
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