From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A3EE3A0545 for ; Thu, 23 Jun 2022 08:41:24 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9D7C4427ED; Thu, 23 Jun 2022 08:41:24 +0200 (CEST) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by mails.dpdk.org (Postfix) with ESMTP id 298534069C; Thu, 23 Jun 2022 08:41:23 +0200 (CEST) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 07EC35C009B; Thu, 23 Jun 2022 02:41:20 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Thu, 23 Jun 2022 02:41:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= cc:cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm2; t=1655966480; x= 1656052880; bh=UFPCwp9s8pKnaoV9MZHOXWLB6uObvfxePWLsvX0b3f4=; b=b WvFXNClpaWJnueFpgYwk+9uIS9Rf5Umm8R8tofhavm7I6EsnwdDskaUleVwrdVCd 1V7sSrpAPlypFIUuoeyq/EgQ2CZHeH8uNm7bKJY2qCa20PvQSSehTJ0PFEDgLSSr MavAnobCEeeynnCMq2rRANYfQWry/f0Sin8d8NJdKd3Wr5RlmPt6zMox2RXYcSTQ yyga+Po4El2IuwVLbqSBlLSDvQWmvMrNsT7gaZ95LfspnN2UbjcVgKS/kWYBPUU/ YV97zPbBExk+z+WHW+YxC/usIrtwo0CCrWEw5gDcD14E+aAltrQHJDG20nB2nXKz kSIJXhAZ/jaOruGcqRMhQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1655966480; x= 1656052880; bh=UFPCwp9s8pKnaoV9MZHOXWLB6uObvfxePWLsvX0b3f4=; b=C ZaZBeOIv5gius0nvpBYSKeq2FD32qDnZKVfcRsKlbpWDvTUjSvtW65zN+r4iY1P8 zwUAaQr7NVZZIbIAzlgfNE0ln980qWr7PvGasd2TIqbT+rAF5105EMaEai/9529p YzcRkrkLoW7haZBrUFOWQd9xt4yVU0IrpJ8qNCfYXIFOPbR2TDETwvTh3PO5SG7F x7uoTyMxR8WiMkkZMb+KKoewCNt7UKaWxd7SS7oo2gXDA1Nxwx1TQChpEqHnj1tO z1ZhtTnRJQ5YPhPeiy/JWoSO0gwZzGFPOC2OWqCcvUtNRZ8Jo6dLR2okRFECBDo7 eRiURkAKNPFEeZ6TU5Gew== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrudefiedgudduvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvfevufffkfgjfhgggfgtsehtqhertddttdejnecuhfhrohhmpefvhhho mhgrshcuofhonhhjrghlohhnuceothhhohhmrghssehmohhnjhgrlhhonhdrnhgvtheqne cuggftrfgrthhtvghrnhepgedttdeljeejgeffkeekkedtjeevtdehvedtkeeivdeuuedv ieduvdelveejueejnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilh hfrhhomhepthhhohhmrghssehmohhnjhgrlhhonhdrnhgvth X-ME-Proxy: Feedback-ID: i47234305:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 23 Jun 2022 02:41:18 -0400 (EDT) From: Thomas Monjalon To: Ke Zhang Cc: dev@dpdk.org, stable@dpdk.org, xiaoyun.li@intel.com, aman.deep.singh@intel.com, yuying.zhang@intel.com, Ferruh Yigit , bruce.richardson@intel.com, david.marchand@redhat.com, qi.z.zhang@intel.com Subject: Re: [PATCH v2] app/testpmd: fix quit testpmd with vfs and pf Date: Thu, 23 Jun 2022 08:41:15 +0200 Message-ID: <8178369.aoefvbuG5b@thomas> In-Reply-To: <4030713.XrmoMso0CX@thomas> References: <20220322071833.199619-1-ke1x.zhang@intel.com> <4030713.XrmoMso0CX@thomas> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Adding more about this patch: testpmd is a test application. It allows you to find some issues in some scenarios. It seems you found an issue and you decided to hide it in the test application. That's really wrong! This kind of issue should be solved in the API or in the driver. In this case, I believe it should be handled in the driver which should release dependent ports. 22/06/2022 23:31, Thomas Monjalon: > Sorry, this patch looks really wrong, I cannot pull it into the main bran= ch. > See below for an explanation. >=20 >=20 > 21/06/2022 12:43, Ferruh Yigit: > > On 6/21/2022 10:24 AM, Ke Zhang wrote: > > > When testpmd startups with pf and vfs,this error occurs when quitting, > > > results in pf is released before vfs ,so the vf would access an > > > freed heap memory. > > >=20 > > > The solution is two steps: > > > 1. Fetch the valid port value from RTE_ETH_FOREACH_DEV. > > > 2. free the port in reverse order. > > >=20 > > > Fixes: 08fd782b8454 ("app/testpmd: fix quit to stop all ports before = close") > > > Cc: stable@dpdk.org > > >=20 > > > Signed-off-by: Ke Zhang > >=20 > > Acked-by: Aman Singh > > Acked-by: Ferruh Yigit > >=20 > > Applied to dpdk-next-net/main, thanks. > >=20 > >=20 > > > --- > > > app/test-pmd/testpmd.c | 26 +++++++++++++++++++++----- > > > 1 file changed, 21 insertions(+), 5 deletions(-) > > >=20 > > > diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c > > > index 04c39adc21..c01ecf7279 100644 > > > --- a/app/test-pmd/testpmd.c > > > +++ b/app/test-pmd/testpmd.c > > > @@ -3492,16 +3492,32 @@ pmd_test_exit(void) > > > } > > > #endif > > > if (ports !=3D NULL) { > > > + portid_t ethports[RTE_MAX_ETHPORTS]; > > > + int count =3D 0; > > > + int index =3D 0; > > > no_link_check =3D 1; > >=20 > > No need to initialize 'index'. > >=20 > > And better to have an empty line after deceleration block. > >=20 > > > + > > > + /* Fetch the valid port id from port list*/ > > > RTE_ETH_FOREACH_DEV(pt_id) { > > > - printf("\nStopping port %d...\n", pt_id); > > > + ethports[count] =3D pt_id; > > > + count++; > > > + } > > > + > > > + /* > > > + * Free the port from Reverse order, as general, > > > + * PF port < VF port=EF=BC=8C VF should be free before PF > > > + * be free. >=20 > No sorry, this is wrong. > The port ID says nothing. > If a port is closed before creating a VF, > it can be VF < PF. >=20 > > > + */ > > > + for (index =3D count - 1 ; index >=3D 0 ; index--) { > >=20 > > Space is not needed after ';'. > >=20 > >=20 > > Since these are minor, I will fix while merging.