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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 45163C5B56A for ; Wed, 12 Aug 2026 14:21:42 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4hKrK04H5Fz302l; Thu, 13 Aug 2026 00:21:40 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.105.4.254 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1786544500; cv=none; b=FhvdzR3DCiwOnkXw9LMioCMqb9CWGzF/vtfNC5d4q3cxfCW8IHLP5e0yc/fBujhf5fTYPSrPZy8rCEIrEZ1M8331s1URZ2+1Y2WaDggWLFkTgzP5Ozy0HDhl+PqlwT+cb5K6kmVOOqSRnelBwL4aqIYzu4bCfV8DnqhjnMug87R0nCs9VFKAsesvnRxtqT6Imblk6Ybb9n5ew1tSA5GtDilgrKfxQ0RRwaMYKmPosp1zkZ9rhUWxhrCQdTUEjdJbQ0RgpU8kbxCqe3nZrNPiWjObJZ849p4PSUoI+4W1XiNOowufzqXNmN3VdtmSA9PSXG2NIfTkHVwdSG4p7N7etA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1786544500; c=relaxed/relaxed; bh=a7uHO+cls4zicW3uCaFv9/XNqct5VHTMhLbXkR3nur0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YPI72/SN8LuHfLIisQpS47cpIsknMaaCE1y05d/FI7+O4xx1imc4E1QEaAyP65AmVtVl0NwxUy4/c26YmbQzMvv2YjVG7jNwuxn5d+NSsEH5c74LzVAAkbQ9RYuUH4R27mVfI3uQvDYWh62sHtj1rxsStdsDseJTqW6unGv+EXS6V2LkhDfz91m7ehZQog8EmKn9bnSW/7/JmE7IeTdrwAP0dKaCZ0O3Fo2K+/xJ0Z36oIjxhCZe5hrQVXBsaE+TEL9RISF7cscYHw4cFveuZZ24BHKtbjrhOqUPTH7oImVcxCDsaAK931yzTMOpFNhZ1zsgbMV54hLmSlyEvCzruQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Efhanhoc; dkim-atps=neutral; spf=pass (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=sj@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Efhanhoc; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=sj@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4hKrJz6Kvpz2ytv for ; Thu, 13 Aug 2026 00:21:39 +1000 (AEST) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id F242D60AA9; Wed, 12 Aug 2026 14:21:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71F991F000E9; Wed, 12 Aug 2026 14:21:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786544497; bh=a7uHO+cls4zicW3uCaFv9/XNqct5VHTMhLbXkR3nur0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Efhanhocax+0BjDxsAvm5/zpWalMWJn9FmC/Vd1Q2qp3EztLaT+JXFwig25RvLV27 YlaM8vxIlV407KATsZg7kEq4pW6E5uLGh8z9M1TMOo6g9WmP4mSJ/kioxxvB+3nuOi YIUunDYhs1LU+V7sLJ7JMRUtyJMN5zwjpQ+sRrzdzYAoh2OHmto1WdMzN06nd+Yv0g DHgStv0atUzA3Eu9vQzHM2B1WWFyVRtMCxhmhhlO55ZC7/4QA06dV+k729Ro6g+HdM zxdf4MDkusWMZJFGGpTPrIglqqIYK+dP1sk9ceDBIuNGOu4XMDl/6rpreuc5PPPnvH IeEMSGcRDQ08A== From: SJ Park To: Gao Xiang Cc: SJ Park , Linus Torvalds , linux-erofs@lists.ozlabs.org, LKML , Guenter Roeck , Geert Uytterhoeven Subject: Re: [PATCH] erofs: fix EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS on some UP platforms Date: Wed, 12 Aug 2026 07:21:29 -0700 Message-ID: <20260812142130.124832-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260812131144.30802-1-xiang@kernel.org> References: X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Wed, 12 Aug 2026 21:11:43 +0800 Gao Xiang wrote: > CONFIG_NR_CPUS doesn't define on some UP platforms (e.g. arm), so this > can cause make oldconfig to loop indefinitely when CONFIG_SMP=n: > > $ make ARCH=arm allmodconfig > $ sed -i "/CONFIG_SMP=y/d" .config > $ sed -i "/CONFIG_EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS.*/d" .config > > EROFS LZMA default maximum decompression streams (EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS) [0] (NEW) > EROFS LZMA default maximum decompression streams (EROFS_FS_ZIP_LZMA_DEFAULT_MAX_STREAMS) [0] (NEW) > ... > > Let's guard NR_CPUS with SMP instead of using a hardcoded arbitrary CPU > uplimit here, similar to commit a3344078101c ("mm: make SPLIT_PTE_PTLOCKS > depend on SMP"). > > The initial report from SJ Park was for m68k [1] (m68k is the only arch > without NR_CPUS in Kconfig), and it will be changed in another patch [2]. Thank you for this patch. I confirmed this fixes the issue on my setup. > > [1] https://lore.kernel.org/all/anuyFHLUGDjZWY4K@XiangdeMacBook-Pro.local/T/#u > [2] https://lore.kernel.org/r/20260731094950.1988084-2-ukleinek@kernel.org > > Reported-by: SJ Park > Closes: https://lore.kernel.org/r/20260728065447.91511-1-sj@kernel.org > Reported-by: Guenter Roeck > Closes: https://lore.kernel.org/r/87853c96-cc8f-49e6-81b1-02bfe409e372@roeck-us.net > Fixes: c9b47e6b2311 ("erofs: cap LZMA stream pool size") > Cc: Geert Uytterhoeven > Signed-off-by: Gao Xiang Tested-by: SJ Park Thanks, SJ [...]