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 7040CC83F3A for ; Thu, 31 Aug 2023 19:01:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C7BA08D001E; Thu, 31 Aug 2023 15:01:50 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C2B728D0002; Thu, 31 Aug 2023 15:01:50 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B1A428D001E; Thu, 31 Aug 2023 15:01:50 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id A48958D0002 for ; Thu, 31 Aug 2023 15:01:50 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 6A6131603D0 for ; Thu, 31 Aug 2023 19:01:50 +0000 (UTC) X-FDA: 81185319180.20.6C4DCE3 Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) by imf29.hostedemail.com (Postfix) with ESMTP id D8585120049 for ; Thu, 31 Aug 2023 19:01:46 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf29.hostedemail.com: domain of whitebox@nefkom.net designates 212.18.0.10 as permitted sender) smtp.mailfrom=whitebox@nefkom.net ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1693508507; 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-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TdVTY9lLR5IrleeGTqO3jlI+C0FaNGNnnLAKNjNkLnY=; b=1bWh9Wjodne7OyqjywLUY51X+Vkmq4tMkSJqT7Ig8yOy0+X2KvBaAWdSu6w3s4hOEzN/4o ThMBpUDXg05pkTfVGrx9UmQcg0HcsJTmMRArSHzP0vshD+gRs7QcnrfE0ehQ5inuIr/SJ9 GFgG+3CqB58azoHo8KV6Cj/cZpR9N08= ARC-Authentication-Results: i=1; imf29.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf29.hostedemail.com: domain of whitebox@nefkom.net designates 212.18.0.10 as permitted sender) smtp.mailfrom=whitebox@nefkom.net ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1693508507; a=rsa-sha256; cv=none; b=rHpyZVwaIpo/K6vbdrF+MvPPqmbmDOHO42XE+UUn3eLUCNiflPHnavyNx8PYY+ZT+2O2rG Ug24T9urc16qqyFX8RsP+2yP/HYj6ERYINihDoowzvC1yuadxcBdvdUpU05hmlkDO+Xa6y TgAv71Oa8KdVPEOIJXsrrX87Z02d/1E= Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4Rc9W85fh1z1sCHT; Thu, 31 Aug 2023 21:01:39 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 4Rc9W73sV1z1qqlY; Thu, 31 Aug 2023 21:01:39 +0200 (CEST) X-Virus-Scanned: amavis at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavis, port 10024) with ESMTP id 3t2LcBBBC5P6; Thu, 31 Aug 2023 21:01:38 +0200 (CEST) X-Auth-Info: lXkH32dCcJBd+12DFQPqBK2TsYUkx9qeK/d1QE75ehLNaJXCOJQ9jpTXTWJ0N5Py Received: from igel.home (aftr-62-216-205-244.dynamic.mnet-online.de [62.216.205.244]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Thu, 31 Aug 2023 21:01:38 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id 3B0CF2C1069; Thu, 31 Aug 2023 21:01:38 +0200 (CEST) From: Andreas Schwab To: Michael Ellerman Cc: "Liam R. Howlett" , Andrew Morton , maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v2 1/2] maple_tree: Disable mas_wr_append() when other readers are possible In-Reply-To: <87y1hr22o1.fsf@mail.lhotse> (Michael Ellerman's message of "Thu, 31 Aug 2023 15:37:02 +1000") References: <20230819004356.1454718-1-Liam.Howlett@oracle.com> <20230819004356.1454718-2-Liam.Howlett@oracle.com> <87bkeotin8.fsf@igel.home> <87y1hr22o1.fsf@mail.lhotse> X-Yow: Everything will be ALL RIGHT if we can just remember things about ALGEBRA.. or SOCCER.. or SOCIALISM.. Date: Thu, 31 Aug 2023 21:01:38 +0200 Message-ID: <87cyz3594d.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: D8585120049 X-Stat-Signature: ubazs3sgg7dszta5o3pzxht5hrsqwkz5 X-Rspam-User: X-HE-Tag: 1693508506-247463 X-HE-Meta: U2FsdGVkX18+sXI0q063pk4jnh8QAIuBYJu+W0G0wYSmrN3pecXtBEQ5WRLX13e/fEushxlir512qwgTgyTAzdvOfegaeA2dEKQlcJwNTFnGBTO/dUwIrNRLph/83s0wquMEZGewbo1XM0Pe4rOLiNHA2nbgS2fTo4wrQWCpfgvnyy89EvfyMZOwCY3nce7Tbe6hKk9jSSx2zt9GxxKNVkb13VFMp/CMEb+9nWADTIrv+AU6Ran5qrUS5pCZs7WzkUEvC8T5CmfFVYGwDjyanchyvqb0c7Y5v34V9tNNGcThQx1yjpvyDEKTiy3cFjmXrAmiRQ83T4yW6pmAuR13sGLyVswFkUDO+jdV2f5Gz13QnraCTSjrrHaDuTLRPewl+v+S2Q8leZpftqdXo5OqrpWfClPYC7SLGqKK2IyARxAIdFXBrCe9/h9HhFnR63AQl9sug92Lm9UmrGZXKyqeoysZfry3Tvhg4/safjtk0l8UsAJBkjDTmgTO8FZ9qpdaXdM2mJTzfb5rQ7OX05gJ/QK9LOkQ+Zn7Rk4VuIPYeCAbSqtK3WxrAjk6YYOdnQ4AGhjUhMdS5KjYsDE62MRg0XsFHxcpFr6GIEW0m31Niz2NH2Le+i5oF5767KeDuN5+pJaajxZF5dImSbPW9yfDeRfptqoI1uHVJQ/584XgTeLb36TwQMgKWREShgjoX51R0+qHZxKIlQZkXbySVE7UAY4aDkbJ0vPk+bVtC6gxi2+mJFg0vLRDBhlul51JY836V7HqO0tygER9+5/v45TrDMtj9VYP7Vgqn2i5fjM16LupX5Gz7OXegfaqH94eJHsU0JA/g37H1TnQCm8jgVsndyAnA+Dj8yQsW2r3S5iBl5/e03VSPF0860vebDDwZyKWnzipoq5XNQoAFRODyp4NtsHjEA9islpW8QziaUUVN/8UX7S45elI2d0eMDYshbRyUxZgGlNh0FL6VnPr5sw D+DpuN6g ldwRGJoV7ttbqQ+ES9Rb5zs+YgmtvpeO+dbr9EvRchJ9yYUtMVnancq1ahU3BH+buA5ahhD3d2AAuU0hbh654ePeE4cM8yrtYoWCvFdvzm+H+u/LGc4oc8CAH3VwdHU7U2uF4VigH+m7S6u2WqdUhKWe2cZ7fl6L9a36X4cSvDybwOkRnsACVC23h4iZIyxf/49BRm4nLokdr5+MvRewZzlxgyKGqZSSRE50jPN/JPkaEicRITqP9hHtw+o6S61fOAI4/Hw5Ge0BZJ4ara4GpMr3rAvJj8vui6SOF+jf/JN7PsPO3Jeq4CIe6YEUpS09cvCqSJiM8BXBBJaXzehByoP8nTDQEAP0951ny X-Bogosity: Ham, tests=bogofilter, spamicity=0.067315, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Aug 31 2023, Michael Ellerman wrote: > Andreas Schwab writes: >> This breaks booting on ppc32: > > Does enabling CONFIG_DEBUG_ATOMIC_SLEEP fix the crash? Yes, it does. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."