From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 201753] AMD-Vi: Unable to write to IOMMU perf counter
Date: Mon, 08 Mar 2021 10:46:10 +0000 [thread overview]
Message-ID: <bug-201753-28872-luwNmKXOZc@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-201753-28872@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=201753
--- Comment #21 from David Coe (david.coe@live.co.uk) ---
Good morning, Suravee!
One (final?!) test of your patch (with increased retry count and logging) on
the latest git kernel (5.10.0-rc2) all on Ryzen 2400G. In summary:
5.8.0-44 (Ubuntu 20.10) 6 trys 20 msecs
5.10.0-14 (Ubuntu 21.04) 5 trys 20 msecs
5.12.0-rc2 (raw git) 6 trys 20 msecs
AFAIK you are AMD's go-to guru for open-source people and an IOMMU expert. It's
your patch that is now both in the kernel commit and (I hope) in Ubuntu's to-do
list. Could I ask if you could patch-the-patch (if there is no esoteric
technical downside) to increase the number of retrys? Maybe if Paul would give
it another shot with his Ryzen 2200G with a larger maximum count and his
logging :-).
Best regards and our thanks
David
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next prev parent reply other threads:[~2021-03-08 10:47 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-201753-28872@https.bugzilla.kernel.org/>
2020-03-27 20:58 ` [Bug 201753] AMD-Vi: Unable to write to IOMMU perf counter bugzilla-daemon
2020-03-27 21:06 ` bugzilla-daemon
2021-02-02 1:33 ` bugzilla-daemon
2021-02-06 3:42 ` bugzilla-daemon
2021-02-06 4:01 ` bugzilla-daemon
2021-02-10 19:52 ` bugzilla-daemon
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2021-03-08 10:46 ` bugzilla-daemon [this message]
2021-03-15 22:00 ` bugzilla-daemon
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2021-08-26 8:43 ` bugzilla-daemon
2021-10-01 19:54 ` bugzilla-daemon
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