From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C21A6E7DEEE for ; Mon, 2 Feb 2026 14:09:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:Subject:References:In-Reply-To:Message-Id:Cc:To:From:Date: MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=RBoismynB60LLwwoMkedKjwF2LAh/OXyt9rYS+d1H6U=; b=vhuWieJeMvpAPfZFjFpDALClnA l3yt1vC/mXOvEdwLpF1JmeqimX94l4r9V4DLPJHKeZRa6puMgviRLXP1PND9VuH//Lh4+5uleYSzH 2uU+VP9i/jWN9Fodj9UQBz7UqDCr4Ri+dWjWRRYWeeXGNYufn7cWsY0rpkORWBJrgQ3j0jiGeJH+j OT2QRCRyFce0cno6gF4PrZczJwtlyrtO9gu6ts08DhGhyG+71m3HZr3mhXDQH2Hvvk2/+vr9MzWKX VoPMkXB9UbV5fwvC4gWCe0JSXx+kFZC+MvWhfb+DD/b3YLghG02+zRPPeMgocdbNdcJ0ezm3BZ2vf RJjRlSZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vmucX-000000054aU-00QR; Mon, 02 Feb 2026 14:09:41 +0000 Received: from fout-b8-smtp.messagingengine.com ([202.12.124.151]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vmucT-000000054Zo-1f81; Mon, 02 Feb 2026 14:09:39 +0000 Received: from phl-compute-04.internal (phl-compute-04.internal [10.202.2.44]) by mailfout.stl.internal (Postfix) with ESMTP id 10F171D000A0; Mon, 2 Feb 2026 09:09:34 -0500 (EST) Received: from phl-imap-02 ([10.202.2.81]) by phl-compute-04.internal (MEProxy); Mon, 02 Feb 2026 09:09:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm2; t=1770041374; x=1770127774; bh=RBoismynB60LLwwoMkedKjwF2LAh/OXyt9rYS+d1H6U=; b= BdKTyM9FOy3kpBMxH25ZRVPtJYe4n7zOgFX02Ew7DVrdTjZa7gZMuk/6T3fzAcvr Mq18oV0QO2yKpmXSUJE0m9d8Wy9I+WVQpkMvmPozdkbX4/SBpZ/+E5NdhcPXzvmQ cjDUd7CCzmVk0xxxBIq3JGv3Rw1rp7bJJ/HYq8D7qzpNK1UpVN3Qr1QQmgee1kcT LZ1kbgyDBHzkyjm7I+gnkukAlDSR/jUJE5vJCOMvGEH6CufTpa6L0jIUGbwW2Ymf sat40+3mQz9RuZLauIpnB1wFZ6HtHCFGP0zqJ+S4FfaSEYZDdidT2wIbzbuccTcT bh9N26PmNhrwi2McIECKsQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1770041374; x= 1770127774; bh=RBoismynB60LLwwoMkedKjwF2LAh/OXyt9rYS+d1H6U=; b=N /1rYOKepF09/IuoqxfYRV3dV/zC/5jA8CZYFmhF90XiFmPvg9TTP7fpFux4suFuR FPMlE5wwchXnm+DyJkmYPJJtCFEbTKx2jW8S1Jq9rtQd8owLPVBAS9kR9DcqDcYh b5jG4nvCzl/kOmrcbnCLMOF39oBtkcWji0H659zogoWxiZ59pmewfoB7NMOmG25/ 1No6XmORBf6ZG/kTbvSuVrDkthHaralWhmxv/RIJ7lPEK7G9n66CEeGgl0zKhNA+ rSJhlqWOAWP7TS4UmsXB1BnmWjLrJU7FaoktaL6d+a3/NWNxdQOvWdG5VYi9qVDc lEvFT57Lm+YFItQrfVESg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddujeejkeegucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurhepofggfffhvfevkfgjfhfutgfgsehtqhertdertdejnecuhfhrohhmpedftehrnhgu uceuvghrghhmrghnnhdfuceorghrnhgusegrrhhnuggsrdguvgeqnecuggftrfgrthhtvg hrnhepteekteeuudegheejjefhleehheehudekuefggeetkeevueeghfevgeduteevtefg necuffhomhgrihhnpehfrhgvvgguvghskhhtohhprdhorhhgnecuvehluhhsthgvrhfuih iivgeptdenucfrrghrrghmpehmrghilhhfrhhomheprghrnhgusegrrhhnuggsrdguvgdp nhgspghrtghpthhtohepudeipdhmohguvgepshhmthhpohhuthdprhgtphhtthhopeguvg htlhgvvhdrtggrshgrnhhovhgrsegtohhllhgrsghorhgrrdgtohhmpdhrtghpthhtohep nhhitgholhgrshdrughufhhrvghsnhgvsegtohhllhgrsghorhgrrdgtohhmpdhrtghpth htohepnhhitghkrdguvghsrghulhhnihgvrhhsodhlkhhmlhesghhmrghilhdrtghomhdp rhgtphhtthhopehjuhhsthhinhhsthhithhtsehgohhoghhlvgdrtghomhdprhgtphhtth hopehmohhrsghosehgohhoghhlvgdrtghomhdprhgtphhtthhopegrrhhnugeskhgvrhhn vghlrdhorhhgpdhrtghpthhtohephhhvvghrkhhuihhlodgtihhstghosehkvghrnhgvlh drohhrghdprhgtphhtthhopehmtghhvghhrggssehkvghrnhgvlhdrohhrghdprhgtphht thhopehnrghthhgrnheskhgvrhhnvghlrdhorhhg X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id 3F359700065; Mon, 2 Feb 2026 09:09:34 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface MIME-Version: 1.0 X-ThreadId: Ad03WE3-YZeR Date: Mon, 02 Feb 2026 15:09:14 +0100 From: "Arnd Bergmann" To: "Nicolas Dufresne" , "Arnd Bergmann" , "Detlev Casanova" , "Ezequiel Garcia" , "Mauro Carvalho Chehab" , =?UTF-8?Q?Heiko_St=C3=BCbner?= , "Nathan Chancellor" , "Hans Verkuil" Cc: "Nick Desaulniers" , "Bill Wendling" , "Justin Stitt" , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Message-Id: <3b89635f-1c1c-4e4e-b0a9-2bbd0f21bc90@app.fastmail.com> In-Reply-To: <16baade123f563ea92e6117bf78c56e8617daf14.camel@collabora.com> References: <20260202094804.1231706-1-arnd@kernel.org> <16baade123f563ea92e6117bf78c56e8617daf14.camel@collabora.com> Subject: Re: [PATCH 1/2] media: rkvdec: reduce excessive stack usage in assemble_hw_pps() Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260202_060937_919768_01B9DBC1 X-CRM114-Status: GOOD ( 20.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Feb 2, 2026, at 14:42, Nicolas Dufresne wrote: > Le lundi 02 f=C3=A9vrier 2026 =C3=A0 10:47 +0100, Arnd Bergmann a =C3=A9= crit=C2=A0: >> From: Arnd Bergmann >>=20 >> The rkvdec_pps had a large set of bitfields, all of which >> as misaligned. This causes clang-21 and likely other versions to >> produce absolutely awful object code and a warning about very >> large stack usage, on targets without unaligned access: >>=20 >> drivers/media/platform/rockchip/rkvdec/rkvdec-vp9.c:966:12: error: st= ack frame size (1472) exceeds limit (1280) in 'rkvdec_vp9_start' [-Werro= r,-Wframe-larger-than] > > We had already addressed and validated that on clang-21, which indicat= es me that > we likely are missing an architecture (or a config) in our CI. Can you= document > which architecture, configuration and flags was affected so we can add= it on our > side ? > > Our media pipeline before sending to Linus and the clang builds trace = are in the > following link, in case it matters. > > https://gitlab.freedesktop.org/linux-media/media-committers/-/pipeline= s/1588731 > https://gitlab.freedesktop.org/linux-media/media-committers/-/jobs/916= 04655 The configuration that hit this for me was an ARMv7-M NOMMU build. I'm doing 'randconfig' builds here, so I inevitably hit some corner cases that all deterministic CI systems miss. I don't think that you should add ARMv7-M here, since that would take up useful build resources from something more important. There are no drviers/media/ actual users on ARMv7-M, and next time it is going to be something else. >> Part of the problem here is how all the bitfield accesses are >> inlined into a function that already has large structures on >> the stack. > > Another observation is that you had to enable ASAN to make it miss-beh= ave on for > loop unrolling (with complex bitfield writes). All I've obtained by v= isiting > the Link: is that its armv7-a architecture. Right, this randconfig build likely got closer to the warning limit because of the inherent overhead in KASAN, but the problem with the unaligned bitfields was something that I could later reproduce without KASAN, on ARMv5 and MIPS32r2. This is something we should fix in clang. =20 >> Mark set_field_order_cnt() as noinline_for_stack, and split out >> the following accesses in assemble_hw_pps() into another noinline >> function, both of which now using around 800 bytes of stack in the >> same configuration. >>=20 >> There is clearly still something wrong with clang here, but >> splitting it into multiple functions reduces the risk of stack >> overflow. > > We've tried really hard to avoid this noninline_for_stack just because= compilers > are buggy. I'll have a look again in case I find some ideas, but meanw= hile, with > failing architecture in the commit message: > > Reviewed-by: Nicolas Dufresne Thanks! Arnd From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 36187E7DEED for ; Mon, 2 Feb 2026 14:09:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:References:In-Reply-To: Message-Id:Cc:To:From:Date:MIME-Version:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=69smwvGLSF3Uxwm91mYSrSEAekLWjDUUKITFh+/CbRk=; b=THN/lIshDbYLymdAA4F/Jdl1Ed jNVKYaQ4xFlfpbdqzUxL8G1PmL0y3qS4PCI26AeoPlzUJb4wBfIEMUG86fimu4Pl+Qced28+ehC3V sSgq5QE1J5Gc6ApQLVlMYgQqO/ZfsezazTJ0YmXDPeO7RzsEQK+iU/D2pLTG26yHxHXNLMeLx/jw6 X2MPjJK6qaqzEclBAzDV9yMdeZSgwJM7TcticGShLsQyHS5JGn+eRSoP5BaJxWGS2V9MXxHDGJPZb 3N9GaufP4bsnSc4Xp/A7h3S3/peLIg7DcST4gJEXoEaMeXcOTt6+ok0IS9N5imBMazGXT0WyNhpcr gi/UhiBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vmucX-000000054aY-3rYz; Mon, 02 Feb 2026 14:09:41 +0000 Received: from fout-b8-smtp.messagingengine.com ([202.12.124.151]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vmucT-000000054Zo-1f81; Mon, 02 Feb 2026 14:09:39 +0000 Received: from phl-compute-04.internal (phl-compute-04.internal [10.202.2.44]) by mailfout.stl.internal (Postfix) with ESMTP id 10F171D000A0; Mon, 2 Feb 2026 09:09:34 -0500 (EST) Received: from phl-imap-02 ([10.202.2.81]) by phl-compute-04.internal (MEProxy); Mon, 02 Feb 2026 09:09:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arndb.de; h=cc :cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm2; t=1770041374; x=1770127774; bh=RBoismynB60LLwwoMkedKjwF2LAh/OXyt9rYS+d1H6U=; b= BdKTyM9FOy3kpBMxH25ZRVPtJYe4n7zOgFX02Ew7DVrdTjZa7gZMuk/6T3fzAcvr Mq18oV0QO2yKpmXSUJE0m9d8Wy9I+WVQpkMvmPozdkbX4/SBpZ/+E5NdhcPXzvmQ cjDUd7CCzmVk0xxxBIq3JGv3Rw1rp7bJJ/HYq8D7qzpNK1UpVN3Qr1QQmgee1kcT LZ1kbgyDBHzkyjm7I+gnkukAlDSR/jUJE5vJCOMvGEH6CufTpa6L0jIUGbwW2Ymf sat40+3mQz9RuZLauIpnB1wFZ6HtHCFGP0zqJ+S4FfaSEYZDdidT2wIbzbuccTcT bh9N26PmNhrwi2McIECKsQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1770041374; x= 1770127774; bh=RBoismynB60LLwwoMkedKjwF2LAh/OXyt9rYS+d1H6U=; b=N /1rYOKepF09/IuoqxfYRV3dV/zC/5jA8CZYFmhF90XiFmPvg9TTP7fpFux4suFuR FPMlE5wwchXnm+DyJkmYPJJtCFEbTKx2jW8S1Jq9rtQd8owLPVBAS9kR9DcqDcYh b5jG4nvCzl/kOmrcbnCLMOF39oBtkcWji0H659zogoWxiZ59pmewfoB7NMOmG25/ 1No6XmORBf6ZG/kTbvSuVrDkthHaralWhmxv/RIJ7lPEK7G9n66CEeGgl0zKhNA+ rSJhlqWOAWP7TS4UmsXB1BnmWjLrJU7FaoktaL6d+a3/NWNxdQOvWdG5VYi9qVDc lEvFT57Lm+YFItQrfVESg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddujeejkeegucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurhepofggfffhvfevkfgjfhfutgfgsehtqhertdertdejnecuhfhrohhmpedftehrnhgu uceuvghrghhmrghnnhdfuceorghrnhgusegrrhhnuggsrdguvgeqnecuggftrfgrthhtvg hrnhepteekteeuudegheejjefhleehheehudekuefggeetkeevueeghfevgeduteevtefg necuffhomhgrihhnpehfrhgvvgguvghskhhtohhprdhorhhgnecuvehluhhsthgvrhfuih iivgeptdenucfrrghrrghmpehmrghilhhfrhhomheprghrnhgusegrrhhnuggsrdguvgdp nhgspghrtghpthhtohepudeipdhmohguvgepshhmthhpohhuthdprhgtphhtthhopeguvg htlhgvvhdrtggrshgrnhhovhgrsegtohhllhgrsghorhgrrdgtohhmpdhrtghpthhtohep nhhitgholhgrshdrughufhhrvghsnhgvsegtohhllhgrsghorhgrrdgtohhmpdhrtghpth htohepnhhitghkrdguvghsrghulhhnihgvrhhsodhlkhhmlhesghhmrghilhdrtghomhdp rhgtphhtthhopehjuhhsthhinhhsthhithhtsehgohhoghhlvgdrtghomhdprhgtphhtth hopehmohhrsghosehgohhoghhlvgdrtghomhdprhgtphhtthhopegrrhhnugeskhgvrhhn vghlrdhorhhgpdhrtghpthhtohephhhvvghrkhhuihhlodgtihhstghosehkvghrnhgvlh drohhrghdprhgtphhtthhopehmtghhvghhrggssehkvghrnhgvlhdrohhrghdprhgtphht thhopehnrghthhgrnheskhgvrhhnvghlrdhorhhg X-ME-Proxy: Feedback-ID: i56a14606:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id 3F359700065; Mon, 2 Feb 2026 09:09:34 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface MIME-Version: 1.0 X-ThreadId: Ad03WE3-YZeR Date: Mon, 02 Feb 2026 15:09:14 +0100 From: "Arnd Bergmann" To: "Nicolas Dufresne" , "Arnd Bergmann" , "Detlev Casanova" , "Ezequiel Garcia" , "Mauro Carvalho Chehab" , =?UTF-8?Q?Heiko_St=C3=BCbner?= , "Nathan Chancellor" , "Hans Verkuil" Cc: "Nick Desaulniers" , "Bill Wendling" , "Justin Stitt" , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Message-Id: <3b89635f-1c1c-4e4e-b0a9-2bbd0f21bc90@app.fastmail.com> In-Reply-To: <16baade123f563ea92e6117bf78c56e8617daf14.camel@collabora.com> References: <20260202094804.1231706-1-arnd@kernel.org> <16baade123f563ea92e6117bf78c56e8617daf14.camel@collabora.com> Subject: Re: [PATCH 1/2] media: rkvdec: reduce excessive stack usage in assemble_hw_pps() X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260202_060937_919768_01B9DBC1 X-CRM114-Status: GOOD ( 20.93 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org T24gTW9uLCBGZWIgMiwgMjAyNiwgYXQgMTQ6NDIsIE5pY29sYXMgRHVmcmVzbmUgd3JvdGU6Cj4g TGUgbHVuZGkgMDIgZsOpdnJpZXIgMjAyNiDDoCAxMDo0NyArMDEwMCwgQXJuZCBCZXJnbWFubiBh IMOpY3JpdMKgOgo+PiBGcm9tOiBBcm5kIEJlcmdtYW5uIDxhcm5kQGFybmRiLmRlPgo+PiAKPj4g VGhlIHJrdmRlY19wcHMgaGFkIGEgbGFyZ2Ugc2V0IG9mIGJpdGZpZWxkcywgYWxsIG9mIHdoaWNo Cj4+IGFzIG1pc2FsaWduZWQuIFRoaXMgY2F1c2VzIGNsYW5nLTIxIGFuZCBsaWtlbHkgb3RoZXIg dmVyc2lvbnMgdG8KPj4gcHJvZHVjZSBhYnNvbHV0ZWx5IGF3ZnVsIG9iamVjdCBjb2RlIGFuZCBh IHdhcm5pbmcgYWJvdXQgdmVyeQo+PiBsYXJnZSBzdGFjayB1c2FnZSwgb24gdGFyZ2V0cyB3aXRo b3V0IHVuYWxpZ25lZCBhY2Nlc3M6Cj4+IAo+PiBkcml2ZXJzL21lZGlhL3BsYXRmb3JtL3JvY2tj aGlwL3JrdmRlYy9ya3ZkZWMtdnA5LmM6OTY2OjEyOiBlcnJvcjogc3RhY2sgZnJhbWUgc2l6ZSAo MTQ3MikgZXhjZWVkcyBsaW1pdCAoMTI4MCkgaW4gJ3JrdmRlY192cDlfc3RhcnQnIFstV2Vycm9y LC1XZnJhbWUtbGFyZ2VyLXRoYW5dCj4KPiBXZSBoYWQgYWxyZWFkeSBhZGRyZXNzZWQgYW5kIHZh bGlkYXRlZCB0aGF0IG9uIGNsYW5nLTIxLCB3aGljaCBpbmRpY2F0ZXMgbWUgdGhhdAo+IHdlIGxp a2VseSBhcmUgbWlzc2luZyBhbiBhcmNoaXRlY3R1cmUgKG9yIGEgY29uZmlnKSBpbiBvdXIgQ0ku IENhbiB5b3UgZG9jdW1lbnQKPiB3aGljaCBhcmNoaXRlY3R1cmUsIGNvbmZpZ3VyYXRpb24gYW5k IGZsYWdzIHdhcyBhZmZlY3RlZCBzbyB3ZSBjYW4gYWRkIGl0IG9uIG91cgo+IHNpZGUgPwo+Cj4g T3VyIG1lZGlhIHBpcGVsaW5lIGJlZm9yZSBzZW5kaW5nIHRvIExpbnVzIGFuZCB0aGUgY2xhbmcg YnVpbGRzIHRyYWNlIGFyZSBpbiB0aGUKPiBmb2xsb3dpbmcgbGluaywgaW4gY2FzZSBpdCBtYXR0 ZXJzLgo+Cj4gaHR0cHM6Ly9naXRsYWIuZnJlZWRlc2t0b3Aub3JnL2xpbnV4LW1lZGlhL21lZGlh LWNvbW1pdHRlcnMvLS9waXBlbGluZXMvMTU4ODczMQo+IGh0dHBzOi8vZ2l0bGFiLmZyZWVkZXNr dG9wLm9yZy9saW51eC1tZWRpYS9tZWRpYS1jb21taXR0ZXJzLy0vam9icy85MTYwNDY1NQoKVGhl IGNvbmZpZ3VyYXRpb24gdGhhdCBoaXQgdGhpcyBmb3IgbWUgd2FzIGFuIEFSTXY3LU0gTk9NTVUg YnVpbGQuIEknbQpkb2luZyAncmFuZGNvbmZpZycgYnVpbGRzIGhlcmUsIHNvIEkgaW5ldml0YWJs eSBoaXQgc29tZSBjb3JuZXIgY2FzZXMKdGhhdCBhbGwgZGV0ZXJtaW5pc3RpYyBDSSBzeXN0ZW1z IG1pc3MuIEkgZG9uJ3QgdGhpbmsgdGhhdCB5b3Ugc2hvdWxkCmFkZCBBUk12Ny1NIGhlcmUsIHNp bmNlIHRoYXQgd291bGQgdGFrZSB1cCB1c2VmdWwgYnVpbGQgcmVzb3VyY2VzCmZyb20gc29tZXRo aW5nIG1vcmUgaW1wb3J0YW50LiBUaGVyZSBhcmUgbm8gZHJ2aWVycy9tZWRpYS8gYWN0dWFsCnVz ZXJzIG9uIEFSTXY3LU0sIGFuZCBuZXh0IHRpbWUgaXQgaXMgZ29pbmcgdG8gYmUgc29tZXRoaW5n IGVsc2UuCgo+PiBQYXJ0IG9mIHRoZSBwcm9ibGVtIGhlcmUgaXMgaG93IGFsbCB0aGUgYml0Zmll bGQgYWNjZXNzZXMgYXJlCj4+IGlubGluZWQgaW50byBhIGZ1bmN0aW9uIHRoYXQgYWxyZWFkeSBo YXMgbGFyZ2Ugc3RydWN0dXJlcyBvbgo+PiB0aGUgc3RhY2suCj4KPiBBbm90aGVyIG9ic2VydmF0 aW9uIGlzIHRoYXQgeW91IGhhZCB0byBlbmFibGUgQVNBTiB0byBtYWtlIGl0IG1pc3MtYmVoYXZl IG9uIGZvcgo+IGxvb3AgdW5yb2xsaW5nICh3aXRoIGNvbXBsZXggYml0ZmllbGQgd3JpdGVzKS4g IEFsbCBJJ3ZlIG9idGFpbmVkIGJ5IHZpc2l0aW5nCj4gdGhlIExpbms6IGlzIHRoYXQgaXRzIGFy bXY3LWEgYXJjaGl0ZWN0dXJlLgoKUmlnaHQsIHRoaXMgcmFuZGNvbmZpZyBidWlsZCBsaWtlbHkg Z290IGNsb3NlciB0byB0aGUgd2FybmluZwpsaW1pdCBiZWNhdXNlIG9mIHRoZSBpbmhlcmVudCBv dmVyaGVhZCBpbiBLQVNBTiwgYnV0IHRoZSBwcm9ibGVtCndpdGggdGhlIHVuYWxpZ25lZCBiaXRm aWVsZHMgd2FzIHNvbWV0aGluZyB0aGF0IEkgY291bGQgbGF0ZXIKcmVwcm9kdWNlIHdpdGhvdXQg S0FTQU4sIG9uIEFSTXY1IGFuZCBNSVBTMzJyMi4KClRoaXMgaXMgc29tZXRoaW5nIHdlIHNob3Vs ZCBmaXggaW4gY2xhbmcuCiAKPj4gTWFyayBzZXRfZmllbGRfb3JkZXJfY250KCkgYXMgbm9pbmxp bmVfZm9yX3N0YWNrLCBhbmQgc3BsaXQgb3V0Cj4+IHRoZSBmb2xsb3dpbmcgYWNjZXNzZXMgaW4g YXNzZW1ibGVfaHdfcHBzKCkgaW50byBhbm90aGVyIG5vaW5saW5lCj4+IGZ1bmN0aW9uLCBib3Ro IG9mIHdoaWNoIG5vdyB1c2luZyBhcm91bmQgODAwIGJ5dGVzIG9mIHN0YWNrIGluIHRoZQo+PiBz YW1lIGNvbmZpZ3VyYXRpb24uCj4+IAo+PiBUaGVyZSBpcyBjbGVhcmx5IHN0aWxsIHNvbWV0aGlu ZyB3cm9uZyB3aXRoIGNsYW5nIGhlcmUsIGJ1dAo+PiBzcGxpdHRpbmcgaXQgaW50byBtdWx0aXBs ZSBmdW5jdGlvbnMgcmVkdWNlcyB0aGUgcmlzayBvZiBzdGFjawo+PiBvdmVyZmxvdy4KPgo+IFdl J3ZlIHRyaWVkIHJlYWxseSBoYXJkIHRvIGF2b2lkIHRoaXMgbm9uaW5saW5lX2Zvcl9zdGFjayBq dXN0IGJlY2F1c2UgY29tcGlsZXJzCj4gYXJlIGJ1Z2d5LiBJJ2xsIGhhdmUgYSBsb29rIGFnYWlu IGluIGNhc2UgSSBmaW5kIHNvbWUgaWRlYXMsIGJ1dCBtZWFud2hpbGUsIHdpdGgKPiBmYWlsaW5n IGFyY2hpdGVjdHVyZSBpbiB0aGUgY29tbWl0IG1lc3NhZ2U6Cj4KPiBSZXZpZXdlZC1ieTogTmlj b2xhcyBEdWZyZXNuZSA8bmljb2xhcy5kdWZyZXNuZUBjb2xsYWJvcmEuY29tPgoKVGhhbmtzIQoK ICAgICBBcm5kCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpMaW51eC1yb2NrY2hpcCBtYWlsaW5nIGxpc3QKTGludXgtcm9ja2NoaXBAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LXJvY2tjaGlwCg==