Date: Fri, 18 Aug 2023 11:05:35 -0700 From: Mark Millard <marklmi@yahoo.com> To: Current FreeBSD <freebsd-current@freebsd.org> Subject: Re: ZFS deadlock in 14 Message-ID: <38A2B0B7-4B9A-4919-A270-75242070B10E@yahoo.com> In-Reply-To: <5B44567B-BD35-4E37-A016-0EA71D0EB9F1@yahoo.com> References: <5B44567B-BD35-4E37-A016-0EA71D0EB9F1@yahoo.com>
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[I had sent to the wrong list. Just fixing that here.] On Aug 18, 2023, at 09:26, Mark Millard <marklmi@yahoo.com> wrote: > Dag-Erling_Sm=C3=B8rgrav <des_at_FreeBSD.org> wrote on > Date: Fri, 18 Aug 2023 14:16:12 UTC : >=20 >> Dag-Erling Sm=C3=B8rgrav <des@FreeBSD.org> writes: >>> A kernel built from c47116e909 plus these two patches has so far = built >>> 2,285 packages without a hitch, whereas normally it would have >>> deadlocked after well before reaching 500 packages. I'll do another = run >>> without the patches tomorrow just to be sure. >>=20 >> Plot twist: c47116e909 _without_ the patches also appears to be = working >> fine. The last kernel I know for sure deadlocks is b36f469a15, so I'm >> going to test cd25b0f740 and 28d2e3b5de. >=20 > I'm confused: >=20 > Tue, 18 Jul 2023 > . . . > =E2=80=A2 git: b36f469a15ec - main - zfs: set autotrim default to = 'off' Yuri Pankov >=20 > But you had written: >=20 > Dag-Erling_Sm=C3=B8rgrav <des_at_FreeBSD.org> > Date: Tue, 15 Aug 2023 17:37:45 UTC=20 > The attached script successfully deadlocks 9228ac3a69c4 >=20 > where: >=20 > Thu, 10 Aug 2023 > . . . > =E2=80=A2 git: 9228ac3a69c4 - main - ixgbe: Add support for 82599 = LS Kevin Bowling >=20 > (You had previously reported a poudriere deadlock there as well.) >=20 > Later on 2023-Aug-10 there is (about 11 or so commits later): >=20 > =E2=80=A2 git: cd25b0f740f8 - main - zfs: cherry-pick fix from = openzfs Martin Matuska=20 > =E2=80=A2 git: 28d2e3b5dedf - main - zfs: cherry-pick fix from = openzfs Martin Matuska >=20 >=20 > I'll note there was also this: >=20 > Dag-Erling_Sm=C3=B8rgrav <des_at_FreeBSD.org> > Date: Sat, 12 Aug 2023 14:11:10 UTC=20 > . . . > Trying to narrow this range down, I did not get a deadlock with > 4e8d558c9d1c (10 June) but I did with b7198dcfc039 (16 June), albeit > after building ~1800 packages. > . . . >=20 > So the count seems to sometimes go well above 500 or so. =3D=3D=3D Mark Millard marklmi at yahoo.com
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