From patchwork Wed Oct 21 21:27:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Xu X-Patchwork-Id: 302320 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8588C4363A for ; Wed, 21 Oct 2020 21:38:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 42556223C7 for ; Wed, 21 Oct 2020 21:38:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="JCBN4fo+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 42556223C7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:44670 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kVLoe-0005a4-5y for qemu-devel@archiver.kernel.org; Wed, 21 Oct 2020 17:38:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46846) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kVLe5-0003J0-Q6 for qemu-devel@nongnu.org; Wed, 21 Oct 2020 17:27:45 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:30435) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kVLe0-000261-G1 for qemu-devel@nongnu.org; Wed, 21 Oct 2020 17:27:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603315656; 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=5YSDXbpiN58TIENBWrzuM3dPsDH2GwMJZmdPK3XRXc4=; b=JCBN4fo+I5hzjpvsGZY0dZZrC1fkAEH7Z7wuOA0hTEJzET2IdQV2o8FN4+Wtb5a0Rvo0Bj dXMPRECnF9p0p3xC7judW2fjEHX4qFlohePpQDuJqb8R7uoNMO7W0/lUlWt+W4aKLVWYJG AVwdCfKfcfaXFTj7DY+bGLcO/9N9WSI= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-195-7aKQIljoPzubjwG5wGSB5g-1; Wed, 21 Oct 2020 17:27:34 -0400 X-MC-Unique: 7aKQIljoPzubjwG5wGSB5g-1 Received: by mail-qk1-f200.google.com with SMTP id d5so2590460qkg.16 for ; Wed, 21 Oct 2020 14:27:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=5YSDXbpiN58TIENBWrzuM3dPsDH2GwMJZmdPK3XRXc4=; b=B/K89BPEjnbIeC23zn+0JCRbQwZ2ZOq/jdKs2IoUsHGJEoiTh+52v2UctDedRpYpwy GCUUe/oqxBg3KDeXwVhw5AliR2wEuNnPjZ0LvJVMD1y+IJOOpOIuXNQ/Egf9idgI580o 3/hapxBRqL9pZGdHqYhE1DLZgj7f048DlUoGYydm9H/aBiugC1DHk6EMAJj1MuisyF7o Xc22ws9gSbxV54/4Mbo6OokeaVTC4oT/dyuGpDTfCRHDWziIwViSsvjG3AmAwNrgaSZ2 5YcsQXzM9fn5rMOhtuI5r8NdcnlvHxV3GjGw98wMZsRPf1ZEHRVatZ0dKfMaREkwwTF3 SjvA== X-Gm-Message-State: AOAM532oMWO7fCT0es46DVhkWyuIBysP9qJwoYURZCeSeST5103wpmef wfQgThip6x4EWElgplZo7uw6iKwxtzJzlCGx7JUQZEPdhXR9RRc4gMouItGgU+FlYvdqr5U+bSB an8BCdtBw53MYD+A= X-Received: by 2002:aed:22fa:: with SMTP id q55mr4936237qtc.229.1603315653849; Wed, 21 Oct 2020 14:27:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwsRwuH2QsIYASdsuMXVXoN/2xH0WiD1HQK507D0oTnZ/ZpSmgHCpR9KK+6J+5GGLaMiWjBrw== X-Received: by 2002:aed:22fa:: with SMTP id q55mr4936217qtc.229.1603315653616; Wed, 21 Oct 2020 14:27:33 -0700 (PDT) Received: from xz-x1.redhat.com (toroon474qw-lp140-04-174-95-215-133.dsl.bell.ca. [174.95.215.133]) by smtp.gmail.com with ESMTPSA id p187sm2089145qkf.70.2020.10.21.14.27.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Oct 2020 14:27:32 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Subject: [PATCH v6 6/6] migration-test: Only hide error if !QTEST_LOG Date: Wed, 21 Oct 2020 17:27:21 -0400 Message-Id: <20201021212721.440373-7-peterx@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201021212721.440373-1-peterx@redhat.com> References: <20201021212721.440373-1-peterx@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=peterx@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/21 02:16:02 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Thomas Huth , "Dr . David Alan Gilbert" , peterx@redhat.com, Juan Quintela Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The errors are very useful when debugging qtest failures, especially when QTEST_LOG=1 is set. Let's allow override MigrateStart.hide_stderr when QTEST_LOG=1 is specified, because that means the user wants to be verbose. Not very nice to introduce the first QTEST_LOG env access in migration-test.c, however it should be handy. Without this patch, I was hacking error_report() when debugging such errors. Let's make things easier. Signed-off-by: Peter Xu Reviewed-by: Thomas Huth --- tests/qtest/migration-test.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index f410ec5996..f2142fbd3c 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -464,6 +464,10 @@ static void migrate_postcopy_start(QTestState *from, QTestState *to) } typedef struct { + /* + * QTEST_LOG=1 may override this. When QTEST_LOG=1, we always dump errors + * unconditionally, because it means the user would like to be verbose. + */ bool hide_stderr; bool use_shmem; /* only launch the target process */ @@ -557,7 +561,7 @@ static int test_migrate_start(QTestState **from, QTestState **to, g_free(bootpath); - if (args->hide_stderr) { + if (!getenv("QTEST_LOG") && args->hide_stderr) { ignore_stderr = "2>/dev/null"; } else { ignore_stderr = "";