Date: Tue, 22 Aug 2023 10:26:22 +0200 From: Martin Matuska <mm@freebsd.org> To: Alexander Motin <mav@freebsd.org> Cc: Dag-Erling =?utf-8?b?U23DuHJncmF2?= <des@freebsd.org>, current@freebsd.org, Mateusz Guzik <mjguzik@gmail.com> Subject: Re: ZFS deadlock in 14 Message-ID: <20230822102622.Horde.tUEwNRTMDn0AjOBiO1UB7OX@webmail.your-server.de> In-Reply-To: <0fd64567-59cd-9276-cc0c-17a09611f11a@FreeBSD.org> References: <86leeltqcb.fsf@ltc.des.no> <86h6p4s64h.fsf@ltc.des.no> <86a5utrafp.fsf@ltc.des.no> <86350kqokl.fsf@ltc.des.no> <CAGudoHHGeC4qaZpmTc15-Rimo78qVUmg8-oYveMfo0_JO45TSw@mail.gmail.com> <86y1icp95t.fsf@ltc.des.no> <CAGudoHFgyb2%2B3jkfmuzG86FqCQfNfPOuoWpsXFByY=YBYCN%2BFQ@mail.gmail.com> <86ttt0p8wv.fsf@ltc.des.no> <197ead1e-210a-6be6-7e24-5c56b14bb777@FreeBSD.org> <86350hpiby.fsf@ltc.des.no> <0fd64567-59cd-9276-cc0c-17a09611f11a@FreeBSD.org>
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Hi Alexander, as 15107 is a prerequisite for 15122, would it be possible to have https://github.com/openzfs/zfs/pull/15107 merged into the OpenZFS zfs-2.2-release branch (and of course later 15122)? If the patches help I can cherry-pick them into main. Cheers, mm Alexander Motin <mav@freebsd.org> wrote: > On 17.08.2023 15:41, Dag-Erling Smørgrav wrote: >> Alexander Motin <mav@FreeBSD.org> writes: >>> Trying to run your test (so far without reproduction) I see it >>> producing a substantial amount of ZIL writes. The range of commits >>> you reduced the scope to so far includes my ZIL locking refactoring, >>> where I know for sure are some deadlocks. I am already waiting for 3 >>> weeks now for reviews and tests for PR that should fix it: >>> https://github.com/openzfs/zfs/pull/15122 . It would be good if you >>> could test it, though it seems to depend on few more earlier patches >>> not merged to FreeBSD yet. >> >> Do you have a FreeBSD branch with your patch applied? > > I don't have a FreeBSD branch, but these two patches apply clean and > build on top of today's FreeBSD main branch: > > https://github.com/openzfs/zfs/pull/15107 > https://github.com/openzfs/zfs/pull/15122 > > And if you still experience the issue, please show all stacks, or at > least include ZFS sync threads. > > -- > Alexander Motin
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