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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38DC1C433FE for ; Sun, 2 Oct 2022 19:37:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9BBC28E0002; Sun, 2 Oct 2022 15:37:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9684E8E0001; Sun, 2 Oct 2022 15:37:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 82FD98E0002; Sun, 2 Oct 2022 15:37:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 6EECD8E0001 for ; Sun, 2 Oct 2022 15:37:00 -0400 (EDT) Received: from smtpin23.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 37504A034E for ; Sun, 2 Oct 2022 19:37:00 +0000 (UTC) X-FDA: 79977017400.23.5C08288 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf15.hostedemail.com (Postfix) with ESMTP id B6CC3A0009 for ; Sun, 2 Oct 2022 19:36:59 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id CD73860EA6; Sun, 2 Oct 2022 19:36:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BD1F5C433D6; Sun, 2 Oct 2022 19:36:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664739418; bh=LvdA4nKSrotgHMTvX23UojetKOPJvfcUlZAliPGdX2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PlN7SIDmB0GB/uWlkZAiu9j476c0931Rsv/SuSk7inzEV73Ng9VlOUtpP8qTNpX8P tDCHVzoK/mO5maTHGT/b2zc92i1M/ZhY44yyppzd8ZFJ30mibuD179M+dcNL4RncU5 1koxUFC1Zje5/2LAKI4OirMSnAn5fl5C9Gex2vVkIgTRDyT5Y/HhY/OfC5PGrEK2Z5 zJf1IyQRAzC+No7Frxq2mvCd/yzuLxybxUu5bZkcK+cXHEsg0cw3omKieUGdzOXUSF cd+pUtl35DdZW/awvo19spfDJaQf2ScLND+3VrhFAv1f37qOZ+FHAA1gg+zFtd+nBa D42DhR7ymlqcQ== From: SeongJae Park To: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: sj@kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, damon@lists.linux.dev Subject: Re: DAMON KUNIT test failure in latest mm-everything Date: Sun, 2 Oct 2022 19:36:56 +0000 Message-Id: <20221002193656.8300-1-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=PlN7SIDm; spf=pass (imf15.hostedemail.com: domain of sj@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1664739419; a=rsa-sha256; cv=none; b=JqsJAl3/aRLPkxuETVjsM993f71W9qQ4/3D68acmNDQkhIlr7J7pz0jJIa1KPKqEA9E2Bc EsUgJNuHRai0gJAo3CUF5KDr6vU41tAzin2tWOCw2S+Apm0qZbS3dDrX+CchxmLch+yaOk ilyRKvLt3MNPFRh+/zBfgWIbozlsHYo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1664739419; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=iPJjxhGhbkF32baZRYIxThSbXYFqRSn1IROYK0nY85o=; b=Ft9fyeE5O1EEzWC/RTj75onO+t7u21z36r+HmlK3xu1IuIpR+ncGiGXZ/Kmec7IQ1v2GIU 2Az7FeGVt/IhyCrx2aYkgJS3+fomZesxJo+Nmx8TDvIordE4m3/tuSp9jSAmzqzXXwc58V xoZV1AVAP0v/gJRn6LL1R7McfmCHxD0= Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=PlN7SIDm; spf=pass (imf15.hostedemail.com: domain of sj@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Stat-Signature: fzxjmf66hfnioih365ssdmbdfay398s8 X-Rspamd-Queue-Id: B6CC3A0009 X-Rspam-User: X-Rspamd-Server: rspam11 X-HE-Tag: 1664739419-937309 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 Hyeonggon, On Sun, 2 Oct 2022 16:24:29 +0900 Hyeonggon Yoo <42.hyeyoo@gmail.com> wrote: > On Sun, Oct 02, 2022 at 01:24:23PM +0900, Hyeonggon Yoo wrote: > > Hi guys, yesterday I just built and booted latest mm-everything, > > and I got following report from KUNIT test. > > > > Environment: > > - x86_64, gcc 11.2.0 > > - mm-everything (tag: mm-everything-2022-10-01-01-55) > > - config attached > > > > Report (stacktrace decoded): > > FYI, below is the bad commit from git bisection ;) > > Thanks! > > 065530b966a42d63f214ba40427dc8d00345f573 is the first bad commit > commit 065530b966a42d63f214ba40427dc8d00345f573 > Author: SeongJae Park > Date: Fri Sep 9 20:28:57 2022 +0000 > > mm/damon/core-test: test damon_set_regions > > Preceding commit fixes a bug in 'damon_set_regions()', which allows holes > in the new monitoring target ranges. This commit adds a kunit test case > for the problem to avoid any regression. Thank you so much for this kind report! I just sent a patch[1] for this. It should fix this issue. BTW, please note that the real issue was there even before the kunit commit, but the kunit commit was the first commit that triggers the issue. [1] https://lore.kernel.org/damon/20221002193130.8227-1-sj@kernel.org/ Thanks, SJ [...]