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 41BADC433F5 for ; Tue, 4 Jan 2022 19:04:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236442AbiADTEb (ORCPT ); Tue, 4 Jan 2022 14:04:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232179AbiADTEa (ORCPT ); Tue, 4 Jan 2022 14:04:30 -0500 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 350FEC061761 for ; Tue, 4 Jan 2022 11:04:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=2DhaCppRWQGPWcr/nm/x95SNiVggsLhkIma5/VYD5xg=; t=1641323070; x=1642532670; b=klTVguWqCR+dJ8SspHrHBdB+mNeFv2A5sQP+mrgUPsirbx0 swAGgquzDPxmdTYkkFnBG/K2Au5m3sZM3JNmzMi0Kw9OQ412EQWRoV3MSFtkYbkqbBc0k9/VANwKj rDqBWi1NbAlVWNk5gc8OXJ/T40WtedUz8Yo6mQscGnmAV+RogGSNGdZuDUdzUV5nEJtVInXtSOOkL TRefrtwTZf+bnRtAtkJGQLL4PFfdHnnQ43HVdKB5iGFodv1NT19dLHjfTxiiuDqFuRDucjUAoDfFI oldhY4ceRoibKM36pONAE7V6T7yRVBYp26RhQ9dSCWmAXJYpGj9L54utJ0SAJg7g==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.95) (envelope-from ) id 1n4p6f-001r7M-Vi; Tue, 04 Jan 2022 20:04:26 +0100 Message-ID: Subject: Re: Occasional hung with UM after enable VMAP_STACK From: Johannes Berg To: Walter Lozano , linux-um@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sjoerd Simons , ritesh sarraf Date: Tue, 04 Jan 2022 20:04:24 +0100 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.2 (3.42.2-1.fc35) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-malware-bazaar: not-scanned Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2022-01-04 at 15:10 -0300, Walter Lozano wrote: > Hi all, > > I noticed that after "um: enable VMAP_STACK" [1] I experienced some > occasional hung in my Gitlab CI jobs that use user-mode-linux to build > distro images. > Did you actually *enable* VMAP_STACK in the config as well? The commit just makes it *possible* to enable it, you still have to set it yourself. So you should be able to easily check with/without that setting. johannes From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from s3.sipsolutions.net ([2a01:4f8:191:4433::2] helo=sipsolutions.net) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n4p6o-00CZCy-9d for linux-um@lists.infradead.org; Tue, 04 Jan 2022 19:04:35 +0000 Message-ID: Subject: Re: Occasional hung with UM after enable VMAP_STACK From: Johannes Berg Date: Tue, 04 Jan 2022 20:04:24 +0100 In-Reply-To: References: MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: Walter Lozano , linux-um@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sjoerd Simons , ritesh sarraf On Tue, 2022-01-04 at 15:10 -0300, Walter Lozano wrote: > Hi all, > > I noticed that after "um: enable VMAP_STACK" [1] I experienced some > occasional hung in my Gitlab CI jobs that use user-mode-linux to build > distro images. > Did you actually *enable* VMAP_STACK in the config as well? The commit just makes it *possible* to enable it, you still have to set it yourself. So you should be able to easily check with/without that setting. johannes _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um