From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86C8BC433E0 for ; Fri, 26 Feb 2021 13:28:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 201B864F1F for ; Fri, 26 Feb 2021 13:28:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229885AbhBZN2s (ORCPT ); Fri, 26 Feb 2021 08:28:48 -0500 Received: from mail.kernel.org ([198.145.29.99]:52786 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229556AbhBZN2p (ORCPT ); Fri, 26 Feb 2021 08:28:45 -0500 Received: by mail.kernel.org (Postfix) with ESMTPS id 5856664F17 for ; Fri, 26 Feb 2021 13:28:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614346085; bh=HFrr7m5ycOFvUQQJnbHQwBdtx605BD6sdGpS279SR2c=; h=From:To:Subject:Date:In-Reply-To:References:From; b=M3aGwmJUcyuAqymTbQr5Ikl3vvk1AFnGOfxseEEgJwuinA1FjRSFQxMZnOh9fPWtw msH15ZSvJQhB7EAocS5+bAiXdrIspK8YmVJOUmn6vdo93VInGnXzYIaOhKynKO7Jid 7f6P2t6sNRU/xS0BA+DccpUZDpebzmp5YGW7coDH8SInY1x/+bzPvgH7M2XovRRZQK uUxMNFVzj9DATCFjOXb51KvSHkFxX8KUp5iQrtpGHD/0LB5xgAj34Z7w7BqnLg9QHF fFspdCTxVu8K7oahNgMqsFI9zLGXCKLJ1HPF5XbcDiGpHHU//R3slI1NVCvYtOON2H tiKhji0mwvg7A== From: bugzilla-daemon@bugzilla.kernel.org To: kvm@vger.kernel.org Subject: [Bug 201753] AMD-Vi: Unable to write to IOMMU perf counter Date: Fri, 26 Feb 2021 13:28:04 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Product: Virtualization X-Bugzilla-Component: kvm X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pmenzel+bugzilla.kernel.org@molgen.mpg.de X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D201753 --- Comment #12 from Paul Menzel (pmenzel+bugzilla.kernel.org@molgen.mpg.de= ) --- @David, please increase the number of retries instead of increasing the del= ay. Please also print out the number of retries. Looking at the patch, delaying the boot by up to 100 ms, and no proper logg= ing, it leaves a lot to be desired. @David, you can also test Alex=E2=80=99 patch *iommu/amd: Fix event counter availability check* [1]. [1]: https://lore.kernel.org/linux-iommu/20200529200738.1923-1-amonakov@ispras.r= u/ --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=