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Date:      Thu, 4 Jan 2024 06:20:26 -0800
From:      John Kennedy <warlock@phouka.net>
To:        Alexander Motin <mav@freebsd.org>
Cc:        Kurt Jaeger <pi@freebsd.org>, freebsd-current@freebsd.org, Alexander Leidinger <Alexander@leidinger.net>
Subject:   Re: ZFS problems since recently ?
Message-ID:  <ZZa-qvukYepDYOVk@phouka1.phouka.net>
In-Reply-To: <ZZTcPBnStMx7Gdxf@phouka1.phouka.net>
References:  <ZZG0RdFTqfbfPwf7@fc.opsec.eu> <ZZH2YIXm75emBbpp@phouka1.phouka.net> <ZZIPYzWKZ1R_pMHQ@phouka1.phouka.net> <ZZJRHnA6Kgs3TdCF@fc.opsec.eu> <ZZLFQa1qZ0as01AU@phouka1.phouka.net> <ea6cb256-3000-3822-1734-258f84635c46@FreeBSD.org> <ZZTcPBnStMx7Gdxf@phouka1.phouka.net>

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On Tue, Jan 02, 2024 at 08:02:04PM -0800, John Kennedy wrote:
> On Tue, Jan 02, 2024 at 05:51:32PM -0500, Alexander Motin wrote:
> > On 01.01.2024 08:59, John Kennedy wrote:
> > >  ...
> > >    My poudriere build did eventually fail as well:
> > > 	...
> > > 	[05:40:24] [01] [00:17:20] Finished devel/gdb@py39 | gdb-13.2_1: Success
> > > 	[05:40:24] Stopping 2 builders
> > > 	panic: VERIFY(BP_GET_DEDUP(bp)) failed
> > 
> > Please see/test: https://github.com/openzfs/zfs/pull/15732 .
> 
>   It came back today at the end of my poudriere build.  Your patch has fixed
> it, so far at least.

  At the risk of conflating this with other ZFS issues, I beat on the VM a lot
more last night without triggering any panics.  My usual busy-workload is a
total kernel+world rebuild (with whatever pending patches might be out), then
a poudriere run (~230 or so packages).  It's weird that the first (much bigger)
run worked but later ones didn't (where maybe I had one port that failed to
build), triggering the panic.  Seemed repeatable, but don't have a feel for
the exact trigger like the sysctl issue.



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