From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id E71DF3858434 for ; Mon, 2 Jan 2023 17:22:57 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1672680177; 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: in-reply-to:in-reply-to:references:references; bh=Rue7yVlgGt4ZZf+071j0Khw4A7NIUZDIiDcKkvQwVic=; b=M/X97bYgl5xoJ9J2mSouJoAzts/Cw1wZ0163u1uhRvLooFQrwRG/T8fljmy5oPxzzAI9ew cD8odLB2kD1P6KOmsCAQv5eLPdpMhWnONQjMCFerOdAwpN8WDkC4nFy3XYFSl7AGiXEW3I fArkdGU7lU+8JBvvsEz6+CFm/sNrPqA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-185-ZCgaYIt_PAKpq0eKIAobGA-1; Mon, 02 Jan 2023 12:22:56 -0500 X-MC-Unique: ZCgaYIt_PAKpq0eKIAobGA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 29386811E9C; Mon, 2 Jan 2023 17:22:56 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.2.16.30]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2FCAD51EF; Mon, 2 Jan 2023 17:22:55 +0000 (UTC) From: Florian Weimer To: Andreas Schwab Cc: Florian Weimer via Gdb , Dmitry Belyavskiy Subject: Re: Hardware watchpoints on GNU/Linux AArch64 References: <87tu18naqq.fsf@oldenburg.str.redhat.com> <87358sq2xm.fsf@igel.home> Date: Mon, 02 Jan 2023 18:22:53 +0100 In-Reply-To: <87358sq2xm.fsf@igel.home> (Andreas Schwab's message of "Mon, 02 Jan 2023 18:08:53 +0100") Message-ID: <874jt8n95e.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,KAM_NUMSUBJECT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: * Andreas Schwab: > On Jan 02 2023, Florian Weimer via Gdb wrote: > >> Is this actually expected to work? Would we have more luck on a >> bare-metal system? > > Worksforme on real hardware, probably a missing qemu emulation. > > You can try maintenance set show-debug-regs 1 to see if you get more > information. It doesn't show more details unfortunately. This is KVM running on real hardware. Admittedly, it could be an outdated kernel. Thanks, Florian