From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id wIsnFC8hRGAucgAA0tVLHw (envelope-from ) for ; Sun, 07 Mar 2021 00:41:19 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id iNrnDy8hRGCMWwAAbx9fmQ (envelope-from ) for ; Sun, 07 Mar 2021 00:41:19 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 8D68E1AFBC for ; Sun, 7 Mar 2021 01:41:18 +0100 (CET) Received: from localhost ([::1]:47738 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIhTx-0003R5-0M for larch@yhetil.org; Sat, 06 Mar 2021 19:41:17 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49528) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIhTh-0003Qe-Vv for bug-guix@gnu.org; Sat, 06 Mar 2021 19:41:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]:55292) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lIhTh-0007V8-OF for bug-guix@gnu.org; Sat, 06 Mar 2021 19:41:01 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lIhTh-0007bv-MZ for bug-guix@gnu.org; Sat, 06 Mar 2021 19:41:01 -0500 X-Loop: help-debbugs@gnu.org Subject: bug#46981: Severe Emacs shell mode performance regression in recent Linux-libre Resent-From: Mark H Weaver Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Sun, 07 Mar 2021 00:41:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 46981 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: 46981@debbugs.gnu.org X-Debbugs-Original-To: bug-guix@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.161507762329197 (code B ref -1); Sun, 07 Mar 2021 00:41:01 +0000 Received: (at submit) by debbugs.gnu.org; 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Sat, 06 Mar 2021 19:40:15 -0500 From: Mark H Weaver Date: Sat, 06 Mar 2021 19:38:49 -0500 Message-ID: <871rcr23wr.fsf@netris.org> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=64.112.178.59; envelope-from=mhw@netris.org; helo=world.peace.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1615077679; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:resent-cc:resent-from:resent-sender: resent-message-id:list-id:list-help:list-unsubscribe:list-subscribe: list-post; 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dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Migadu-Queue-Id: 8D68E1AFBC X-Spam-Score: -2.37 X-Migadu-Scanner: scn0.migadu.com X-TUID: 71j8pd+Gl2XQ FYI, for those who use Emacs shell mode (M-x shell), I wanted to give a heads-up about a severe performance regression in Linux-libre 5.10.20, and I suspect the same regression exists in 5.11.3. For details, see the bug report I submitted to the Emacs developers, here: . Mark