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 25370C433F5 for ; Tue, 4 Jan 2022 18:10:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235806AbiADSKP (ORCPT ); Tue, 4 Jan 2022 13:10:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49486 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234495AbiADSKO (ORCPT ); Tue, 4 Jan 2022 13:10:14 -0500 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E6B0C061761 for ; Tue, 4 Jan 2022 10:10:14 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: wlozano) with ESMTPSA id D6F991F43D38 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1641319812; bh=EP9qs2TSWUslRqwjtXoUQPJRHvy9rOdJWe+gcNWACyw=; h=Date:From:Subject:To:Cc:From; b=N9/lloEmKGYdZvrhzJGUr7CoAKiNKbQmxeuHwbquT+V40iUH9cwU3CL6MTzxGY2Yi yB+5gJ80e8V+T0zubx119mJRe9oWIL3+9uIriR0Lgv9DF94QJBXJ0aEE83URsV260r FZV16/4qwwUmWedZ3dt9r12XhfZsSioHf8x2txvdp4m33P+A4Bf5C7hb0MIPvdG3gG A47oSYjffq0zbBG+to8P523ZkfqaricPgCbHFGuI27L4VWeyjuStG7bUyn/fo6rXNZ PvBgJxLJ1kuGHVS19xZACb6/mM2d24OilD3sCUGCzSkrPuXbMhQMSvksZFQqSXjhwj EPeU4huZCnBkQ== Message-ID: Date: Tue, 4 Jan 2022 15:10:06 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 From: Walter Lozano Subject: Occasional hung with UM after enable VMAP_STACK To: johannes@sipsolutions.net, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sjoerd Simons , ritesh sarraf Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. The configuration use for the building is the one available from Debian, see [2] and [3]. Unfortunately I don't have much information, when the issue arises the job seems to hang and it is cancelled by Gitlab due to a job timeout. So far I did some bisect to get the commit which introduces the issue and a quick check with latest Linux stable branch master to confirm the issue is still present. I know this is not a proper bug report but I thought it will be better to at least raise a comment. Thanks in advance, Walter [1] http://lists.infradead.org/pipermail/linux-um/2021-August/001657.html [2] https://packages.debian.org/bookworm/user-mode-linux [3] https://salsa.debian.org/uml-team/user-mode-linux -- Walter Lozano Collabora Ltd. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n4oGF-00CSBL-W5 for linux-um@lists.infradead.org; Tue, 04 Jan 2022 18:10:17 +0000 Message-ID: Date: Tue, 4 Jan 2022 15:10:06 -0300 MIME-Version: 1.0 From: Walter Lozano Subject: Occasional hung with UM after enable VMAP_STACK Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: johannes@sipsolutions.net, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sjoerd Simons , ritesh sarraf 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. The configuration use for the building is the one available from Debian, see [2] and [3]. Unfortunately I don't have much information, when the issue arises the job seems to hang and it is cancelled by Gitlab due to a job timeout. So far I did some bisect to get the commit which introduces the issue and a quick check with latest Linux stable branch master to confirm the issue is still present. I know this is not a proper bug report but I thought it will be better to at least raise a comment. Thanks in advance, Walter [1] http://lists.infradead.org/pipermail/linux-um/2021-August/001657.html [2] https://packages.debian.org/bookworm/user-mode-linux [3] https://salsa.debian.org/uml-team/user-mode-linux -- Walter Lozano Collabora Ltd. _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um