From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E57452C80 for ; Sun, 24 Nov 2024 07:44:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.2 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732434246; cv=none; b=Vr3wIrNgj2HD9eZDJclKMXl865r8QDBJwcd6Mytfq5kkBLhmIlVBY9peHrIpRCcRr9jJ/hlU7YOe0zmBwTZCHOaKrxnKwBtjL94gULIB3AWtEPeg39oZH/+Ah+OIyU0nJI2cH2nBRnPLlXXWWJSKfG4vFuNwbB1Q20aJipWzQQ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732434246; c=relaxed/simple; bh=i9UtdqXtVjG4OxCdBgR3ofGqYJaU4aMbCNFixJDYH2c=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=dfa0LFnBio04oNBP5NfC8FBHKWpsaNfsCF2AQW/Mb4W/Oh6Gjw5p+L5efspC+TM/pwH/JVW/TU+3dT1JjLTpgxSG4e5HLYBW4DrYXac+YePp9Hxlxk2xPQI9VRcbDFFLPBlTXWwzq5wDBiccvXR0rdCRyCbuICY5aMvlFn1vuuA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=NCNE1bfe; arc=none smtp.client-ip=220.197.31.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="NCNE1bfe" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=pB/P2 KM2O7XmmfZ64PdjOHBu5Bm2PcLL67BQ7nehanY=; b=NCNE1bfekUMRVsonZSwbC qYOhLhXdrgoFBsYqX/dGDfALriboZRcC9jQ3QyG36UWh4O+b4kkASOeezLTrCZR7 813GzhUX6fAddG6m3NEtpcFo5nf9HT3ZR6q0XZE6e47hxggDDDAxNmyEYpsbB+Df 9fMjZTN61ML91IeoaC0DM4= Received: from localhost.localdomain (unknown [111.35.191.191]) by gzga-smtp-mtada-g0-4 (Coremail) with SMTP id _____wDn73UX2UJnWv1eCA--.358S4; Sun, 24 Nov 2024 15:43:40 +0800 (CST) From: David Wang <00107082@163.com> To: surenb@google.com, kent.overstreet@linux.dev Cc: linux-kernel@vger.kernel.org Subject: Abnormal values show up in /proc/allocinfo Date: Sun, 24 Nov 2024 15:43:18 +0800 Message-Id: <20241124074318.399027-1-00107082@163.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wDn73UX2UJnWv1eCA--.358S4 X-Coremail-Antispam: 1Uf129KBjvdXoWrtryxJF47KrWxJr45Zr4rGrg_yoWkXrb_Wa 1rtr4Sq345J348WasrWr4qv3y0qay7Kr1Sgasxtr1ayF95tan3G3WqvwnIqFyfJr42yF45 uwnIqr4Ska1a9jkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUbjQ6tUUUUU== X-CM-SenderInfo: qqqrilqqysqiywtou0bp/1tbiMwqhqmdCzvKzgQAAsZ Hi, I am running 6.12.0 for a week, and today I notice several strange items in /proc/allocinfo: -4096 18446744073709551615 mm/filemap.c:3787 func:do_read_cache_folio -1946730496 18446744073709076340 mm/filemap.c:1952 func:__filemap_get_folio -903294976 18446744073709331085 mm/readahead.c:263 func:page_cache_ra_unbounded -353054720 18446744073709465421 mm/shmem.c:1769 func:shmem_alloc_folio 10547565210 0 mm/compaction.c:1880 func:compaction_alloc -156487680 18446744073709513411 mm/memory.c:1064 func:folio_prealloc -2422685696 18446744073708960140 mm/memory.c:1062 func:folio_prealloc -2332479488 18446744073708982163 fs/btrfs/extent_io.c:635 [btrfs] func:btrfs_alloc_page_array some values are way too large, seems like corrupted/uninitialized, and values for compaction_alloc are inconsistent: non-zero size with zero count. I do not know when those data became this strange, and I have not reboot my system yet. Do you guys need extra information before I reboot my system and started to try reproducing? Thanks David