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[23.128.96.18]) by mx.google.com with ESMTP id l9si11223767edi.199.2020.11.30.06.55.32; Mon, 30 Nov 2020 06:55:55 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=C3HNtI8Z; dkim=neutral (no key) header.i=@linutronix.de header.b=N7PVC797; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727672AbgK3OxN (ORCPT + 99 others); Mon, 30 Nov 2020 09:53:13 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:49240 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727113AbgK3OxM (ORCPT ); Mon, 30 Nov 2020 09:53:12 -0500 Date: Mon, 30 Nov 2020 15:52:29 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1606747950; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FqYOmy7AsvS+8wcOaYtUA3RjkAkwu7jtiKhNU8ZLeAc=; b=C3HNtI8Z0c+cX8DT+3eM0ZoKKBwdXq/0KEAJ7AfOtNKL21z77XU+8noKwyurjwWnsYWjRp Sokk6MwgmagA+OtiJ1RTJSAB2Ev3Jy9Xo+K4Owy41kLPI/y0/XaHqU3B8XR1ziD0Jj45OC PJLGogsQOTkOn27yr3zo2jERYoOs8OsWgPdH7FN1XzA+8fWIYiuaY73ismRAIPeUn8FYuy A5RQfIIs5LZeo+X6RADmR2xdmtB6QHL9n0O8RxkodBt6sxHJKcKWg8i1T2DPnfhBS8BAPe VoefZiLFXRTRqAYUHR6u6GFtg+k+obiotrgLzQ0hIACfpbmwPuqTsfkkXeuHZQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1606747950; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FqYOmy7AsvS+8wcOaYtUA3RjkAkwu7jtiKhNU8ZLeAc=; b=N7PVC7972LE2ln4ZEUrhBw/GJV2UZWO7V0X0J6JqMaC/SJfqQPaU4LLT+eZpWMUWIYCkhG o8hAloiZt+T8dlDw== From: Sebastian Andrzej Siewior To: Mike Galbraith Cc: Oleksandr Natalenko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Steven Rostedt , Thomas Gleixner , linux-rt-users@vger.kernel.org Subject: Re: scheduling while atomic in z3fold Message-ID: <20201130145229.mhbkrfuvyctniaxi@linutronix.de> References: <20201128140924.iyqr2h52z2olt6zb@spock.localdomain> <20201128142723.zik6d5skvt3uwu5f@spock.localdomain> <15171df044b167351e7f6a688aabd71bade9ae2a.camel@gmx.de> <79ee43026efe5aaa560953ea8fe29a826ac4e855.camel@gmx.de> <20201129112922.db53kmtpu76xxukj@spock.localdomain> <90c4857c53b657147bfb71a281ece9839b0373c2.camel@gmx.de> <20201130132014.mlvxeyiub3fpwyw7@linutronix.de> <856b5cc2a3d4eb673743b52956bf1e60dcdf87a1.camel@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <856b5cc2a3d4eb673743b52956bf1e60dcdf87a1.camel@gmx.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-11-30 15:42:46 [+0100], Mike Galbraith wrote: > This explodes in write_unlock() as mine did. Oleksandr's local_lock() > variant explodes in the lock he added. (ew, corruption) >=20 > I think I'll try a stable-rt tree. This master tree _should_ be fine > given it seems to work just peachy for everything else, but my box is > the only one making boom... and also NOT making boom with the zbud > compressor. Hrmph. How do you test this? I triggered a few oom-killer and I have here git gc running for a few hours now=E2=80=A6 Everything is fine. Sebastian