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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E225C77B77 for ; Mon, 17 Apr 2023 02:44:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229924AbjDQCo4 (ORCPT ); Sun, 16 Apr 2023 22:44:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52252 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229458AbjDQCow (ORCPT ); Sun, 16 Apr 2023 22:44:52 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA8FD2D74 for ; Sun, 16 Apr 2023 19:44:51 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id y6so23068280plp.2 for ; Sun, 16 Apr 2023 19:44:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1681699491; x=1684291491; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=5BW9mUGbE4CjcE5YLGMl/RAMUggg+307btqnvGXyK7k=; b=kuRByPl6WakkokDKUuQi2G8ok9eGSNerVlAC2Ntd8FA4oCxGqYUnpDuDiDmXkLSWjm 53J0l43hDgyhKiFMO47jPKr3IgVqiytUuGvkUnI8T6PoGwhIJ5fZ9f9Ht13ox6GT2dcb pxFNC8JxerHwXuG4U0BpfIaRZKPHgK7kSWeJ0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681699491; x=1684291491; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=5BW9mUGbE4CjcE5YLGMl/RAMUggg+307btqnvGXyK7k=; b=NFbN7QmrQeZfqSVqKGGWvcEmCgwWu8rTSjX8NPNSuhSO+pQbSO7JRX487oXKk3lUKA 63i9oZS+FJVSxDmlnxGwFGrByecT+EmzMCGPTh9B0CYZSPtQ8sXkhENOysmq7D3JXlra p1cyYhvQgL8mMs3uWcKn9uKrusM3JP6oSsVBoV/Rf7XV/AXm+0iiNZZQg8oEcE8xBpQY FhQl7zKB1u6xIoPxpScBjHESUodXS4InXuVWpUvsDCjITE/1znMHjEmHzqqQo5rZJuUm rrV1H86DzcPEpFoZ41nFKuZ3gX7oR99jE+DO8R1Ca3e36J/SDby/f77D2+XBI6qe4rSC HVMA== X-Gm-Message-State: AAQBX9eIEi5v7qOmMCj5cwFqg2ekGuKstLMMbkmkuJ74b5fJhYk6cEt0 Q1BB7lPYXJ4i4F8UG2UVDMnuIdGQ2KhVUPaHQzw= X-Google-Smtp-Source: AKy350Y2YySI9UdnGoVY7WmBo02qeEtux7soZEnOezCIW99T/kUw/VVxPotquhtNxyUVOxE0ixEELg== X-Received: by 2002:a17:902:e88c:b0:19e:f315:98d with SMTP id w12-20020a170902e88c00b0019ef315098dmr13179576plg.43.1681699491429; Sun, 16 Apr 2023 19:44:51 -0700 (PDT) Received: from google.com (KD124209188001.ppp-bb.dion.ne.jp. [124.209.188.1]) by smtp.gmail.com with ESMTPSA id ja3-20020a170902efc300b001a65258011bsm6458214plb.26.2023.04.16.19.44.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Apr 2023 19:44:50 -0700 (PDT) Date: Mon, 17 Apr 2023 11:44:46 +0900 From: Sergey Senozhatsky To: Yu Zhao Cc: Sergey Senozhatsky , Minchan Kim , Andrew Morton , Yosry Ahmed , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCHv4 0/4] zsmalloc: fine-grained fullness and new compaction algorithm Message-ID: <20230417024446.GL25053@google.com> References: <20230304034835.2082479-1-senozhatsky@chromium.org> <20230416151853.GK25053@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (23/04/16 13:27), Yu Zhao wrote: > > Hi, > > > > Did you bisect it down to this series? > > Not exactly -- since this series was the only suspect I had, I cherry > picked it to v6.3-rc6 and verified it is the culprit. Can't reproduce it yet. One of the theories is that get_fullness_group() maybe returns an invalid index, but I don't immediately see how would it do so. Is the problem reproducible? Do you run some specific test?