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From: Daniel Black <daniel@mariadb.org>
To: linuxppc-dev@lists.ozlabs.org
Subject: Memory coherency issue with IO thread offloading?
Date: Tue, 28 Mar 2023 17:20:56 +1100	[thread overview]
Message-ID: <CABVffEN2=G3nFyk12qwWwtk6ZZiXoNquXUJ_oYTKa0q2=GE76Q@mail.gmail.com> (raw)

Thanks Jens, Nick, Christophe and Michael for your work so far.

Apologies for the out of thread email.

Confirming MariabD-10.6+ is required( when we added liburing), and
previous versions used libaio (which tested without incident as mpe
retested).

We were (we're now back on the old good kernel Jens indicated) getting
failures like https://buildbot.mariadb.org/#/builders/231/builds/16857
in a container (of various distro userspaces) on bare metal.

bare metal end of /proc/cpuinfo

processor    : 127
cpu        : POWER9, altivec supported
clock        : 3283.000000MHz
revision    : 2.2 (pvr 004e 1202)

timebase    : 512000000
platform    : PowerNV
model        : 9006-22P
machine        : PowerNV 9006-22P
firmware    : OPAL
MMU        : Radix

             reply	other threads:[~2023-03-28  6:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-28  6:20 Daniel Black [this message]
2023-03-28 12:10 ` Memory coherency issue with IO thread offloading? Michael Ellerman
  -- strict thread matches above, loose matches on Subject: below --
2023-03-23 18:54 Jens Axboe
2023-03-24  7:27 ` Christophe Leroy
2023-03-24 12:06   ` Jens Axboe
2023-03-25  0:15     ` Michael Ellerman
2023-03-25  0:20       ` Jens Axboe
2023-03-25  0:42 ` Michael Ellerman
2023-03-25  1:15   ` Jens Axboe
2023-03-25  1:20     ` Jens Axboe
2023-03-27  4:22       ` Nicholas Piggin
2023-03-27 12:39         ` Jens Axboe
2023-03-27 21:24           ` Jens Axboe
2023-03-28 12:51             ` Michael Ellerman
2023-03-28 16:38               ` Jens Axboe
2023-03-27 13:53     ` Michael Ellerman

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