From nobody Thu Dec 18 19:33:24 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1599725709; cv=none; d=zohomail.com; s=zohoarc; b=kY7crJOuSzKI5Alea/hizGbpm1n2BjDyCEYY7reOp/ZXVVTAEQRNGA7CxQjRdSaed78Q2UwDUbXBWJG+P6r5feZSZlCi+XYCkwOi1EV8Z3vo2jgP8wq7alo7Me+GnLYd+TkJ2oVASOwnlzRiSjmwWihOjN+gSBNfAIGFhkUP0zc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1599725709; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=ZAVjYWWvsBeAVZWLNbfusO4YBSjm/+sDD4ovgg1w2EM=; b=J9fdBZ9x7/w1WdxWFSXl7pKTAwx4IjvGPSo6veQ2dag7tIhHX8vFEG6iljIdlSx/9AyfGTWf2MkSjlpLgo2QWGtAbmd0gLDe60WoB29qTO8RxMDLIy9PUHhQnBEaVNy1TEIHS9ji1ki2crQ/5oHiELH2RxoctPqdvR8qNBv2iRI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1599725709253400.20107397669494; Thu, 10 Sep 2020 01:15:09 -0700 (PDT) Received: from localhost ([::1]:59938 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kGHjX-0007Tm-C7 for importer@patchew.org; Thu, 10 Sep 2020 04:15:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49158) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGHgJ-0002KQ-SW for qemu-devel@nongnu.org; Thu, 10 Sep 2020 04:11:47 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:52729) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kGHgH-0002xQ-Ky for qemu-devel@nongnu.org; Thu, 10 Sep 2020 04:11:47 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-514-cr2xqXQFP9GqhqY3Q96DJg-1; Thu, 10 Sep 2020 04:11:38 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9390F1882FC1; Thu, 10 Sep 2020 08:11:37 +0000 (UTC) Received: from localhost (ovpn-112-28.ams2.redhat.com [10.36.112.28]) by smtp.corp.redhat.com (Postfix) with ESMTP id 389F57E19A; Thu, 10 Sep 2020 08:11:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599725504; 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=ZAVjYWWvsBeAVZWLNbfusO4YBSjm/+sDD4ovgg1w2EM=; b=Dc1ma+bRRpnE+3hqybEgFbE8ExJmTJmqecrRATUsf05DTftje6kbxeE7jdHtNwER2XU2Qf iCmF/WxGfvimR4UezsE6fs9pfK/+VJBmwj1Dh3Xc/ujGvoexi5KW6VCSZvzTK0cI2caSYT lRVVcIf1S5uLNRxBQHPfU1Nlc0OYvI0= X-MC-Unique: cr2xqXQFP9GqhqY3Q96DJg-1 From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PULL v2 4/8] net/colo: Match is-enabled probe to tracepoint Date: Thu, 10 Sep 2020 09:10:45 +0100 Message-Id: <20200910081049.38393-5-stefanha@redhat.com> In-Reply-To: <20200910081049.38393-1-stefanha@redhat.com> References: <20200910081049.38393-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/10 02:38:59 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_H5=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 Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" From: Roman Bolshakov Build of QEMU with dtrace fails on macOS: LINK x86_64-softmmu/qemu-system-x86_64 error: probe colo_compare_miscompare doesn't exist error: Could not register probes ld: error creating dtrace DOF section for architecture x86_64 The reason of the error is explained by Adam Leventhal [1]: Note that is-enabled probes don't have the stability magic so I'm not sure how things would work if only is-enabled probes were used. net/colo code uses is-enabled probes to determine if other probes should be used but colo_compare_miscompare itself is not used explicitly. Linker doesn't include the symbol and build fails. The issue can be resolved if is-enabled probe matches the actual trace point that is used inside the test. Packet dump toggle is replaced with a compile-time conditional definition. 1. http://markmail.org/message/6grq2ygr5nwdwsnb Fixes: f4b618360e ("colo-compare: add TCP, UDP, ICMP packet comparison") Cc: Philippe Mathieu-Daud=C3=A9 Cc: Cameron Esfahani Signed-off-by: Roman Bolshakov Reviewed-by: Zhang Chen Message-id: 20200717093517.73397-5-r.bolshakov@yadro.com Signed-off-by: Stefan Hajnoczi --- net/colo-compare.c | 42 ++++++++++++++++++++++-------------------- net/filter-rewriter.c | 10 ++++++++-- net/trace-events | 2 -- 3 files changed, 30 insertions(+), 24 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index 2c20de1537..0b3215dee0 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -54,6 +54,8 @@ static NotifierList colo_compare_notifiers =3D #define REGULAR_PACKET_CHECK_MS 3000 #define DEFAULT_TIME_OUT_MS 3000 =20 +/* #define DEBUG_COLO_PACKETS */ + static QemuMutex colo_compare_mutex; static bool colo_compare_active; static QemuMutex event_mtx; @@ -328,7 +330,7 @@ static int colo_compare_packet_payload(Packet *ppkt, uint16_t len) =20 { - if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE)) { + if (trace_event_get_state_backends(TRACE_COLO_COMPARE_IP_INFO)) { char pri_ip_src[20], pri_ip_dst[20], sec_ip_src[20], sec_ip_dst[20= ]; =20 strcpy(pri_ip_src, inet_ntoa(ppkt->ip->ip_src)); @@ -493,12 +495,12 @@ sec: g_queue_push_head(&conn->primary_list, ppkt); g_queue_push_head(&conn->secondary_list, spkt); =20 - if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE))= { - qemu_hexdump((char *)ppkt->data, stderr, - "colo-compare ppkt", ppkt->size); - qemu_hexdump((char *)spkt->data, stderr, - "colo-compare spkt", spkt->size); - } +#ifdef DEBUG_COLO_PACKETS + qemu_hexdump((char *)ppkt->data, stderr, + "colo-compare ppkt", ppkt->size); + qemu_hexdump((char *)spkt->data, stderr, + "colo-compare spkt", spkt->size); +#endif =20 colo_compare_inconsistency_notify(s); } @@ -534,12 +536,12 @@ static int colo_packet_compare_udp(Packet *spkt, Pack= et *ppkt) ppkt->size - offset)) { trace_colo_compare_udp_miscompare("primary pkt size", ppkt->size); trace_colo_compare_udp_miscompare("Secondary pkt size", spkt->size= ); - if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE))= { - qemu_hexdump((char *)ppkt->data, stderr, "colo-compare pri pkt= ", - ppkt->size); - qemu_hexdump((char *)spkt->data, stderr, "colo-compare sec pkt= ", - spkt->size); - } +#ifdef DEBUG_COLO_PACKETS + qemu_hexdump((char *)ppkt->data, stderr, "colo-compare pri pkt", + ppkt->size); + qemu_hexdump((char *)spkt->data, stderr, "colo-compare sec pkt", + spkt->size); +#endif return -1; } else { return 0; @@ -577,12 +579,12 @@ static int colo_packet_compare_icmp(Packet *spkt, Pac= ket *ppkt) ppkt->size); trace_colo_compare_icmp_miscompare("Secondary pkt size", spkt->size); - if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE))= { - qemu_hexdump((char *)ppkt->data, stderr, "colo-compare pri pkt= ", - ppkt->size); - qemu_hexdump((char *)spkt->data, stderr, "colo-compare sec pkt= ", - spkt->size); - } +#ifdef DEBUG_COLO_PACKETS + qemu_hexdump((char *)ppkt->data, stderr, "colo-compare pri pkt", + ppkt->size); + qemu_hexdump((char *)spkt->data, stderr, "colo-compare sec pkt", + spkt->size); +#endif return -1; } else { return 0; @@ -598,7 +600,7 @@ static int colo_packet_compare_other(Packet *spkt, Pack= et *ppkt) uint16_t offset =3D ppkt->vnet_hdr_len; =20 trace_colo_compare_main("compare other"); - if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE)) { + if (trace_event_get_state_backends(TRACE_COLO_COMPARE_IP_INFO)) { char pri_ip_src[20], pri_ip_dst[20], sec_ip_src[20], sec_ip_dst[20= ]; =20 strcpy(pri_ip_src, inet_ntoa(ppkt->ip->ip_src)); diff --git a/net/filter-rewriter.c b/net/filter-rewriter.c index 1aaad101b6..576b019d09 100644 --- a/net/filter-rewriter.c +++ b/net/filter-rewriter.c @@ -76,11 +76,14 @@ static int handle_primary_tcp_pkt(RewriterState *rf, struct tcp_hdr *tcp_pkt; =20 tcp_pkt =3D (struct tcp_hdr *)pkt->transport_header; - if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) { + if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_PKT_INFO= )) { trace_colo_filter_rewriter_pkt_info(__func__, inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst), ntohl(tcp_pkt->th_seq), ntohl(tcp_pkt->th_ack), tcp_pkt->th_flags); + } + if (trace_event_get_state_backends( + TRACE_COLO_FILTER_REWRITER_CONN_OFFSET)) { trace_colo_filter_rewriter_conn_offset(conn->offset); } =20 @@ -180,11 +183,14 @@ static int handle_secondary_tcp_pkt(RewriterState *rf, =20 tcp_pkt =3D (struct tcp_hdr *)pkt->transport_header; =20 - if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) { + if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_PKT_INFO= )) { trace_colo_filter_rewriter_pkt_info(__func__, inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst), ntohl(tcp_pkt->th_seq), ntohl(tcp_pkt->th_ack), tcp_pkt->th_flags); + } + if (trace_event_get_state_backends( + TRACE_COLO_FILTER_REWRITER_CONN_OFFSET)) { trace_colo_filter_rewriter_conn_offset(conn->offset); } =20 diff --git a/net/trace-events b/net/trace-events index fa49c71533..bfaff7891d 100644 --- a/net/trace-events +++ b/net/trace-events @@ -17,10 +17,8 @@ colo_compare_udp_miscompare(const char *sta, int size) "= : %s =3D %d" colo_compare_icmp_miscompare(const char *sta, int size) ": %s =3D %d" colo_compare_ip_info(int psize, const char *sta, const char *stb, int ssiz= e, const char *stc, const char *std) "ppkt size =3D %d, ip_src =3D %s, ip_d= st =3D %s, spkt size =3D %d, ip_src =3D %s, ip_dst =3D %s" colo_old_packet_check_found(int64_t old_time) "%" PRId64 -colo_compare_miscompare(void) "" colo_compare_tcp_info(const char *pkt, uint32_t seq, uint32_t ack, int hdl= en, int pdlen, int offset, int flags) "%s: seq/ack=3D %u/%u hdlen=3D %d pdl= en=3D %d offset=3D %d flags=3D%d" =20 # filter-rewriter.c -colo_filter_rewriter_debug(void) "" colo_filter_rewriter_pkt_info(const char *func, const char *src, const cha= r *dst, uint32_t seq, uint32_t ack, uint32_t flag) "%s: src/dst: %s/%s p: s= eq/ack=3D%u/%u flags=3D0x%x" colo_filter_rewriter_conn_offset(uint32_t offset) ": offset=3D%u" --=20 2.26.2