From nobody Wed Nov 5 15:42:30 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; dkim=fail spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1497417933463534.5197237454644; Tue, 13 Jun 2017 22:25:33 -0700 (PDT) Received: from localhost ([::1]:46457 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dL0o7-0003r5-PP for importer@patchew.org; Wed, 14 Jun 2017 01:25:31 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45038) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dL0m9-0001u1-Vr for qemu-devel@nongnu.org; Wed, 14 Jun 2017 01:23:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dL0m8-0007Mp-F5 for qemu-devel@nongnu.org; Wed, 14 Jun 2017 01:23:30 -0400 Received: from mail-qt0-x242.google.com ([2607:f8b0:400d:c0d::242]:35972) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dL0m8-0007MV-BC for qemu-devel@nongnu.org; Wed, 14 Jun 2017 01:23:28 -0400 Received: by mail-qt0-x242.google.com with SMTP id s33so39071569qtg.3 for ; Tue, 13 Jun 2017 22:23:28 -0700 (PDT) Received: from bigtime.twiddle.net.com (97-113-165-157.tukw.qwest.net. [97.113.165.157]) by smtp.gmail.com with ESMTPSA id 34sm10959480qtp.17.2017.06.13.22.23.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 13 Jun 2017 22:23:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=wiG993Dmr2WbZchGgyycyVU7tmNx7jtBm8MEugdJaTg=; b=Z8APxn5Z3pFbNjRBWf2O4tpWu55TFCKh9VNpXKz/vnWYvA2+WKTobKOm5SAjsa8b6U G2rqRa7wb1xMWFOhgC5cNaqaHJ73cg8M4e+PQVrLInPDceYceUnaXkNYhEKJ4iSU1dEv M9IX4Ew6kx37b6H+PZA6/xyBIqq878bUc9TMiFUQBBkKZ7IaZURI6N63NlFH0+B60vMm QK+qx+QuWu+UltLOw8a6OUjcGiqK9Xomf3UApYfEHtumV2U1OyB6ZhmBIh1m38pMj9jV ct09KrKcXIyp+OiXZwhtBubJ20x9xERD7CIvs/erIijZvEUT+qqQB4dzMOZWFfP4vpgg PQFQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=wiG993Dmr2WbZchGgyycyVU7tmNx7jtBm8MEugdJaTg=; b=FI5wh2EKJSyperOI5pbX2RqZ+Bx2envdi5OhTVr1DgiclWxsOmwWguImR6HApEfp4K Bt1wB5wF8mWgcomOEcwgZ1wtxB3eR3N8mGWaugVB8hD4DE+fJhP68wNaRNutLXoVXbSy VvYhsBuiaIHnqFkqE95pW0dbablgQ1ZfSraIasuWH9v6FUWQX5KmWDDMjhhPpVZgpMeX LRUVBNpu7F5f8GDtJf3Drcrj0G/evFF6NK/CsIvVyg8TcdrzgHrQgW508jUoDG8cO8G4 Lw+AwgfBUip6+fizqLykRw5yGdjOVP8bygbpE0DwIxx4z67VVK/GNC1v+3u96C1TcEtg 7LbA== X-Gm-Message-State: AKS2vOwjKq5JPK5a3ogzE73m5H8rRk5E514nXvZ2n3Mb05bBKcbOAWWK hZ83kGJVtRer1SE/FWc= X-Received: by 10.237.52.198 with SMTP id x64mr2108037qtd.210.1497417807709; Tue, 13 Jun 2017 22:23:27 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Tue, 13 Jun 2017 22:23:10 -0700 Message-Id: <20170614052311.13785-10-rth@twiddle.net> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170614052311.13785-1-rth@twiddle.net> References: <20170614052311.13785-1-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400d:c0d::242 Subject: [Qemu-devel] [PULL 09/10] Revert "target/aarch64: optimize indirect branches" X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This reverts commit e75449a346bf558296966a44277bfd93412c6da6. This patch appears to induce lockups, or maybe livelocks, while booting a Linux kernel. The assumption is that there is a bug elsewhere within QEMU, but reverting the patch allows normal work to continue in the meantime. Signed-off-by: Richard Henderson --- target/arm/translate-a64.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 860e279..ab61d96 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -11367,7 +11367,8 @@ void gen_intermediate_code_a64(ARMCPU *cpu, Transla= tionBlock *tb) gen_a64_set_pc_im(dc->pc); /* fall through */ case DISAS_JUMP: - tcg_gen_lookup_and_goto_ptr(cpu_pc); + /* indicate that the hash table must be used to find the next = TB */ + tcg_gen_exit_tb(0); break; case DISAS_TB_JUMP: case DISAS_EXC: --=20 2.9.4