Date: Fri, 18 Aug 2023 16:03:53 -0700 From: Mark Millard <marklmi@yahoo.com> To: des@freebsd.org, Current FreeBSD <freebsd-current@freebsd.org> Cc: kevin.bowling@kev009.com, Cy Schubert <Cy.Schubert@cschubert.com> Subject: Re: ZFS deadlock in 14 Message-ID: <59FCB309-4A55-4924-98C4-7ACCA70FD299@yahoo.com> References: <59FCB309-4A55-4924-98C4-7ACCA70FD299.ref@yahoo.com>
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I believe the below quoted messages were reports of deadlocks
based on after the following 2 MFV being in place in their
environments:
Thu, 10 Aug 2023
. . .
=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
Kevin Bowling <kevin.bowling_at_kev009.com> wrote on
Date: Fri, 11 Aug 2023 03:32:51 UTC :
> Spoke too soon still seeing zfs lockups under heavy poudriere workload
> after the MFVs. Regression time matches what has been reported here.
> . . .
> > In message
> > <CAK7dMtDJQtaai3_6VjEkwVwW5JN6e8v=3DkKTOPffp371xb=3DORUg@mail.gmail.c
> > om>
> > , Kevin Bowling writes:
> > > The two MFVs on head have improved/fixed stability with poudriere =
for
> > > me 48 core bare metal.
Cy Schubert <Cy.Schubert_at_cschubert.com> wrote on
Date: Sat, 12 Aug 2023 04:55:40 UTC :
> The poudriere build machine building amd64 packages also panicked. But =
with:
>=20
> Dumping 2577 out of 8122 =
MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91
> %
>=20
> __curthread () at /opt/src/git-src/sys/amd64/include/pcpu_aux.h:59
> 59 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(struct=20
> pcpu
> ,
> (kgdb) #0 __curthread () at =
/opt/src/git-src/sys/amd64/include/pcpu_aux.h:5
> 9
> #1 doadump (textdump=3Dtextdump@entry=3D1)
> at /opt/src/git-src/sys/kern/kern_shutdown.c:407
> #2 0xffffffff806c10e0 in kern_reboot (howto=3D260)
> at /opt/src/git-src/sys/kern/kern_shutdown.c:528
> #3 0xffffffff806c15df in vpanic (
> fmt=3D0xffffffff80b6c5f5 "%s: possible deadlock detected for %p (%s),=20=
> blocked
> for %d ticks\n", ap=3Dap@entry=3D0xfffffe008e698e90)
> at /opt/src/git-src/sys/kern/kern_shutdown.c:972
> #4 0xffffffff806c1383 in panic (fmt=3D<unavailable>)
> at /opt/src/git-src/sys/kern/kern_shutdown.c:896
> #5 0xffffffff8064a5ea in deadlkres ()
> at /opt/src/git-src/sys/kern/kern_clock.c:201
> #6 0xffffffff80677632 in fork_exit (callout=3D0xffffffff8064a2c0 =
<deadlkres>,
> arg=3D0x0, frame=3D0xfffffe008e698f40)
> at /opt/src/git-src/sys/kern/kern_fork.c:1162
> #7 <signal handler called>
> (kgdb)
>=20
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
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