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X-IronPort-AV: E=McAfee;i="6500,9779,10586"; a="307094912" X-IronPort-AV: E=Sophos;i="5.96,318,1665471600"; d="scan'208";a="307094912" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2023 16:10:48 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10586"; a="688135417" X-IronPort-AV: E=Sophos;i="5.96,318,1665471600"; d="scan'208";a="688135417" Received: from yhuang6-desk2.sh.intel.com (HELO yhuang6-desk2.ccr.corp.intel.com) ([10.238.208.55]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2023 16:10:45 -0800 From: "Huang, Ying" To: Mike Kravetz Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Zi Yan , Yang Shi , Baolin Wang , Oscar Salvador , Matthew Wilcox , Bharata B Rao , Alistair Popple , haoxin Subject: Re: [PATCH -v2 0/9] migrate_pages(): batch TLB flushing References: <20230110075327.590514-1-ying.huang@intel.com> Date: Thu, 12 Jan 2023 08:09:42 +0800 In-Reply-To: (Mike Kravetz's message of "Wed, 11 Jan 2023 14:21:59 -0800") Message-ID: <87a62oy5o9.fsf@yhuang6-desk2.ccr.corp.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=ascii X-Rspamd-Queue-Id: 633431C0009 X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: dedzrddzgx5xbbxauffmcsg7kqg8ikds X-HE-Tag: 1673482252-536062 X-HE-Meta: U2FsdGVkX1/0pw03NVDD8VvhlJzvhRF6l34l2KKgqIC5hC4Vs1FzhNqfD2znHCjA0HQZyqg5clVp6e07pY6gZiizOtpOvxvxJs2j/N4095VCQ+V2wOrFZI3tpeJ5/LI7wIZC1wg9IBVeVuK6LTvcYFSO0IAiHwfR6JBFO/3topFqdaTfXcAK7DKVT1KAd7Iar0FCrvgBSO8RmxrBYZLkiU+fiSYFyrMIZNN1hps34zexADUEWE925/46MGqY9OBRE0cWIUeHhKkezoj2AQVv/mixfQSP2ASAZaEKK3LjTxE/BWh5As+19ictGzxex/KUoLwq4MVx2FLez3upSvi2nO+1f3E6TNJrw3Ij6brVDVwvfjs+z/8HdCWRqzKXI1bOHW6ncWi2RJEM04a5Nl0rnqwUu33ZfTDtizpx8EnDp3uX/3lte+4fn36j7zSnWOwDavqOexDzDC3U13nDWwX1awhSZHdiWhb4EkPUugydiZzR0Te7DhQGHakg7uA0ekZg6wTifiR5pTVpJPEablT1IFmBsS2VTDQP6V6p8gdbeLxqXZ7+p+H4OSGoxM5qmHr3X9tAr2iI1rwzy/wXpGl5nYH3fc7pr/hgpkobddFBtVfmUG6AINmykN9Rk/4fCVEGJNSV92Mp1FSSz9+WJvXn2y9UX/WvnJsV3lPsft2irUjO6ogzKST6FE7TkmfFvOlo+LXxJic0bPvFu4DpHv1qY7gGFgQlJygVGhpccOE9aoVjyUnawb3+oEk+HuDd2tUFoVoBhsf+kjZIEDiA5LES/FtqueI0n8WWyw7BLGlDbtamlPk0BXIE2BxWhdpNHXeTYjaM4zuLiqM8DA9PSkrsQDxhLoaY5WV5UV+wz6mUPWjmxTUCdbbZwWYbucJukDICEaLuLEwAAlfUz+7kTaXIFxEOXgf5Xh2V X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, Mike, Mike Kravetz writes: > On 01/10/23 17:53, Mike Kravetz wrote: >> Just saw the following easily reproducible issue on next-20230110. Have not >> verified it is related to/caused by this series, but it looks suspicious. > > Verified this is caused by the series, > > 734cbddcfe72 migrate_pages: organize stats with struct migrate_pages_stats > to > 323b933ba062 migrate_pages: batch flushing TLB > > in linux-next. Thanks for reporting. I tried this yesterday (next-20230111), but failed to reproduce it. Can you share your kernel config? Is there any other setup needed? BTW: can you bisect to one specific commit which causes the bug in the series? Best Regards, Huang, Ying