From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F462403E8C; Thu, 13 Aug 2026 10:06:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786615581; cv=none; b=e7BVf+LU/1bRavunRcRmbJDxG8V/wdRyFPJdo1rTIAxAC7TYhzUuH5rHrtx8yFmUFGf2eIltIfgq65YPGsBYGFQDRK61aDZJyu+pYN3TLvyKEbJ1698uxQfzwuGg+hdQBjEQS5MQc+ezWtnmHWoYubjEDwif92ttUoYLCRLAjHU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786615581; c=relaxed/simple; bh=2P8K0JgMNBWtXc57+p/ZgJ8iI2aes7ITu9MvY9vpDwc=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=k1UVDCWTFr7YzXS7G9uM3KNcPG6TV1zmJFN2lrXthx0bmFKsKhot92fbvcEjdPZEaFb8fsxfmmkA7puNb9i7DFV0QpeuOJinpjJdMCLAkd4GLxWggxcUAKj4T5sXji+69vBol45RfdmeJlJaBaSK7YHdKGnjpxlaomQPvFL5sGQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=casper.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=lYoeQgox; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=casper.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="lYoeQgox" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=2P8K0JgMNBWtXc57+p/ZgJ8iI2aes7ITu9MvY9vpDwc=; b=lYoeQgoxMQigwx47UEVc6WIzz4 4oU643SQexdZfiVUpykRAZ7MNcrVESCDDJcuQrDOGFfXkxI860fOLEG7n1pP4z+T3PMnVrbYyjQqk orepq91nz6X6fu304elvf5V6SCZUnHqkGGmn+r5sE/aFvZXcTrdnKR3hlAQXVweR2kuJIrx0WjoBr 6vh9n/ayR75IORwnE1Ec9SdeUjKkZcaEEnhZhMNkCq/SCjtEWolUPWNHPmDqgGLB6bETdGoRrHp4O f7aoQfLTxknJ9t3iV1dA1D2uCIa9oFcpLCaNBLouPkGPaS4BTPsaL1CtigKuYYeXrFDg+6kN4wAB8 BPhqYPZA==; Received: from [2001:8b0:10b:5:9e94:e235:608c:ebeb] (helo=u09cd745991455d.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuSK6-00000003OqJ-1FPA; Thu, 13 Aug 2026 10:06:06 +0000 Message-ID: <8ba4860fec45afeaa305bcb011d732ef0da302d6.camel@infradead.org> Subject: Re: [PATCH] mm/mmu_notifier: Remove non_block_start/end() from notifier invocation From: David Woodhouse To: Jason Gunthorpe Cc: Michal Hocko , Steven Rostedt , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Sebastian Andrzej Siewior , Clark Williams , Simona Vetter , =?ISO-8859-1?Q?J=E9r=F4me?= Glisse , Christian =?ISO-8859-1?Q?K=F6nig?= , "Paul E. McKenney" , Sean Christopherson , Paolo Bonzini , linux-mm@kvack.org, kvm@vger.kernel.org, linux-rt-devel@lists.linux.dev, linux-kernel@vger.kernel.org Date: Thu, 13 Aug 2026 11:05:58 +0100 In-Reply-To: <9e65be44430e7d013fedf9a1626caba020ad6d94.camel@infradead.org> References: <20260811142730.GG544626@ziepe.ca> <20260811104229.72fdd928@gandalf.local.home> <37b83b429b9f14ea6ad4ca1c13cc8e565ec09033.camel@infradead.org> <44c51ace9b0dc44b795f6f48c91cda440eed910b.camel@infradead.org> <20260812122759.GA662699@ziepe.ca> <20260812134934.GC662699@ziepe.ca> <20260812142659.GD662699@ziepe.ca> <9e65be44430e7d013fedf9a1626caba020ad6d94.camel@infradead.org> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-eOe2XJemHWfQW7ObkaU0" User-Agent: Evolution 3.60.3-0ubuntu1~ppa9~24.04 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html --=-eOe2XJemHWfQW7ObkaU0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2026-08-12 at 15:38 +0100, David Woodhouse wrote: > On Wed, 2026-08-12 at 11:26 -0300, Jason Gunthorpe wrote: > > On Wed, Aug 12, 2026 at 03:05:43PM +0100, David Woodhouse wrote: > > > the non_block_{start,end} guards around the MMU notifiers, which are > > > basically never being called anyway and don't actually seem to protec= t > > > against any real bugs. > >=20 > > If you think this blocked stuff is dead code then lets remove it, but > > I'm pretty sure it is called and I remember seeing bug reports about > > it being triggered in the wild. Vetter certainly added it because > > their tests were actually triggering and they had bugs in their DRM > > stack directly connected to this. > >=20 > > It might not trigger for your hypervisor case but we aren't here just > > to make only kvm work now are we? >=20 > I'm sure there can be real-world use cases where it can trigger, but > when I was *trying* to exercise the code path, to validate my belief > (from source inspection) that even the plain spinlock would trigger the > splat, I ended up having to hack the kernel to do so: >=20 > https://lore.kernel.org/all/787aa26cf62dfd361eea8ed19f384fc517892501.came= l@infradead.org/ >=20 > Perhaps in the past it was easier to trigger 'naturally'? I did a bit more digging. On the one hand, I was wrong to claim that it never triggers =E2=80=94 there *are* a handful of reports; of my searches t= his was probably the most fruitful: https://lore.kernel.org/all/?q=3D%22non_block%3A+1%22 On the other hand, they are basically *all* false positives from the point of view of what the check was actually trying to do. And in KVM. It's causing more issues than it fixes. Including some bizarre MM gymnastics: https://lore.kernel.org/all/amMZFqs1smKmMuj5@lucifer/ At this point I don't think I even *care* whether we manage to do the atomic SRCU thing; I think this check should die *anyway*. --=-eOe2XJemHWfQW7ObkaU0 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCE8Ew ggWvMIIEl6ADAgECAhANkOKMSmGXhF5eMl0rsRhvMA0GCSqGSIb3DQEBDAUAMGUxCzAJBgNVBAYT AlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xJDAi BgNVBAMTG0RpZ2lDZXJ0IEFzc3VyZWQgSUQgUm9vdCBHMjAeFw0yNDAzMTMwMDAwMDBaFw0zNDAz MTIyMzU5NTlaMGIxCzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5EaWdpQ2VydCwgSW5jLjE6MDgGA1UE AxMxRGlnaUNlcnQgQXNzdXJlZCBHMiBTTUlNRSBSU0E0MDk2IFNIQTM4NCAyMDI0IENBMTCCAiIw DQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAOfSIeC0vv1xPQ+dgSxbIIrkaru6skAWJYaGFzmv q4Kq+2wU2jxhcWlJg/JeP5jEkq/LM3pn5aaLao79j+XRmS7J1ZpJKUODJVoM4s9MQJhTMvo4qS5Z S64g6QR7Obkz3I1Lr3aWeSBmDDEyzue+NKtuWZ1Cxy3RdXo/w5HgRc3l2AercOM3Gt1XonTzEtTb Z/Hwc0Sn9Gz8RmGRK6Ka4hVDl8q/2l110KaV233Kh5etP0csXS8MIMdVRfRu3sc5hp13DG7lCKzK 72a2GEpI8Wpl26G6I1/LMzz/98T+FqjTqxsdquk7Cj7m2vKGLW1BorpQH7WFGPdJQXJe1hfbfiZA CcVdCtl4nAacFacmsiArZBfX7AQGL7isvHUwwYFEtcApyGW4p2Lt+t8nvU0CANA6BHOpOz1xOP8W mAESbUriIjyuTUf3fJ9oDNCurVqhASMJCDaWI3lYX/QAoiAzt6akqbbZxo2ujW7mGGqc0KxqE2cs h2T79v7pC8aUtHBfwNrTR19GnZVxE0eQ7ViIQhR6mpSaUQFA9sG+cmD2G8TnCgYsLa0q8De6F61a CBevQGHNzrbZ3JAMneveYg/Jy1XxQHDRcvrMfWKe0jjcWbdKYlaGVPm5V1ILwYz7Yv5ewo3NUrxI GJiywe9qPhuJSDZs7VehTuI0FxGIsgKzVjgbAgMBAAGjggFcMIIBWDASBgNVHRMBAf8ECDAGAQH/ AgEAMB0GA1UdDgQWBBT3m6JO05fF9DQPQw6Bhc6RkzKv+TAfBgNVHSMEGDAWgBTOw0q5mVXyuNtg v6l+vVa1lzan1jAOBgNVHQ8BAf8EBAMCAYYwHQYDVR0lBBYwFAYIKwYBBQUHAwQGCCsGAQUFBwMC MHkGCCsGAQUFBwEBBG0wazAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEMG CCsGAQUFBzAChjdodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGlnaUNlcnRBc3N1cmVkSURS b290RzIuY3J0MEUGA1UdHwQ+MDwwOqA4oDaGNGh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdp Q2VydEFzc3VyZWRJRFJvb3RHMi5jcmwwEQYDVR0gBAowCDAGBgRVHSAAMA0GCSqGSIb3DQEBDAUA A4IBAQA+b8Uw53sDspdZgukU+qzLyyHkcjlxGGhHlP+zrmDLKm1wEFvCRS2pili3Hy67i8N4N5NU vw5Rg6kv3lxb9S9Rktxk43k+tvm68pl7OxQE55ZjVY87P0lUPGwEqOOwLLyH02ZQcsfq5p5LrOH9 0JvmvZ1yy73HS+VpDAqOlytE0NSvTIRqFFkKQGQwfjvtql9YflujuNNvJztjBaHKYZsnNSg+J38o jYq4TP3pSg3UdVH0PncVjPQyqxC9xef5Xae92Kbkzol3x7Nel3A1bwAkalrDMspvTHvey6LfiBks FIqviTnoy7fgjaRAJgHS+RXx/cmuRd3rUAclSVVrYu8RMIIHAzCCBOugAwIBAgIQAzUotrsybJHx HTjKOIVdIDANBgkqhkiG9w0BAQsFADBiMQswCQYDVQQGEwJVUzEXMBUGA1UEChMORGlnaUNlcnQs IEluYy4xOjA4BgNVBAMTMURpZ2lDZXJ0IEFzc3VyZWQgRzIgU01JTUUgUlNBNDA5NiBTSEEzODQg MjAyNCBDQTEwHhcNMjYwNzE4MDAwMDAwWhcNMjgwMTA0MjM1OTU5WjAeMRwwGgYDVQQDDBNkd213 MkBpbmZyYWRlYWQub3JnMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2pYux73kdbYX sWF8f1u6DJP91qcqaZetsyfPkZk0B+MmXmAEv0kVes5n15V2mbDThOnpoPFly0UugQO9JYqLfrtD tKD5yL58fgrDB9Dw+LQikgrHafl6YSCds5AvUu/8hw2J6noKrcOLJpKlKn9Fl/4IB9Q3JIdLx5aa EtTqMalIPqHFOlgrJ7s+aua8xbB8YQ9ahqYBXWRJNv3P/2b1DYtdrz1oqZPE3CcB8Pc6Gf2a1Tcm 6TAgtEx7Cf1BFcrsrMz7TWHmGQITieNb2r9UYWSc2Gp+GtYFNJCgT0JJXKUBIauPMKBLteYrL8Fo ff/uY44dC/mDWjdCP/5x0qelPQjlBvWdHL5zvBTOj06rJ0m3HNI/hnIcDh0Qu2j9reb9rLVcdym6 bWmBM4uDEB8Zv9Ph0KTBFSy1IosyakuD1j1Os30EzjGfbi0EUXIvnOcYbTBAbM5UAzrxEHMhBvoX Pvnx+OyvjJmc9tWxTX6AcSz+m40esbT17URBeZS18afgieiikm5TynlUYP1LciR3hSgGVzvGXnKO 02VDFR5itGWdRKZ2W5wIShNfWfhSa0D0K5UdIDt5Qc7sjzwK1Yb1sY5Tu0uA5mhIS82q1ov83uxB sFkriNnhGv/M1NCDVLBiOMsHu73qUM+yKmgKLwF9Hfn9WI25glbAMI4S5r3hYzcCAwEAAaOCAfcw ggHzMB8GA1UdIwQYMBaAFPebok7Tl8X0NA9DDoGFzpGTMq/5MB0GA1UdDgQWBBRcYhqbcGzn1jrT JOZaB8O7qllDpzAwBgNVHREEKTAngRNkd213MkBpbmZyYWRlYWQub3JngRBkYXZpZEB3b29kaG91 LnNlMBQGA1UdIAQNMAswCQYHZ4EMAQUBAjAOBgNVHQ8BAf8EBAMCBeAwHQYDVR0lBBYwFAYIKwYB BQUHAwIGCCsGAQUFBwMEMIGpBgNVHR8EgaEwgZ4wTaBLoEmGR2h0dHA6Ly9jcmwzLmRpZ2ljZXJ0 LmNvbS9EaWdpQ2VydEFzc3VyZWRHMlNNSU1FUlNBNDA5NlNIQTM4NDIwMjRDQTEuY3JsME2gS6BJ hkdodHRwOi8vY3JsNC5kaWdpY2VydC5jb20vRGlnaUNlcnRBc3N1cmVkRzJTTUlNRVJTQTQwOTZT SEEzODQyMDI0Q0ExLmNybDCBjQYIKwYBBQUHAQEEgYAwfjAkBggrBgEFBQcwAYYYaHR0cDovL29j c3AuZGlnaWNlcnQuY29tMFYGCCsGAQUFBzAChkpodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20v RGlnaUNlcnRBc3N1cmVkRzJTTUlNRVJTQTQwOTZTSEEzODQyMDI0Q0ExLmNydDANBgkqhkiG9w0B AQsFAAOCAgEAocabrh1cPd5s3vY5rnlBVQSTc7zs2ZWs67dAIltR+05WELrYClVzzUhMs/LOJPlr EUo45UDDomXq38DxFepaPd9+iNLjXfn33EX/IG44j04lU/oF/Rg9VeQILkYLbCZ/x9wOjNHZc4SN ydY7Dhvf/sT5aBz88u7D5+azZJ7Qf1U57wYseCH1Mt0nDrtr5y19IJ8D9xJJ33RFL6vfpHZBBAQ8 +3RqkKNxLoV2aFvQhxdhjNLDqTv3LjUIdicwPraN7JkxEu7CV2Lka7eRqJgkWL7SK0YmBjGpRafs +icP/ON5RCCKTTb6VlX8eTG2sJJfsFhvJNCCt6xexbWzWtIrfP7NvPBvwBB737AyEGBZkS5aNizT McURJGTv9UKvBh1LF/+tNhYtLvPCN7oecGzhCHht9jcwSkygTo3Y6YlK3QgOu+ncmiBbfeuwlLZ1 LxbYvG6hgNqXv7u6YyADbYajAQJXJ2OQen39pm3Q/AQSyLYG+B8lDglWsM8tYXPlEdrYJcksGK6F nqIX6Bumn43rBooLJdiZp4WmfWdL2pxe+LxRDjprmqu1WprixDxULSTOKJZoqTlugs6y3Bc+if+s gHnBBtz9WQ6MtPHkh7zONDAFIKcBmv8OqPQCx0F3Wv3OEybwMpXx0OsKgK8wLldaX1pXcMuyDgTL Sqs0AV0OHUgwggcDMIIE66ADAgECAhADNSi2uzJskfEdOMo4hV0gMA0GCSqGSIb3DQEBCwUAMGIx CzAJBgNVBAYTAlVTMRcwFQYDVQQKEw5EaWdpQ2VydCwgSW5jLjE6MDgGA1UEAxMxRGlnaUNlcnQg QXNzdXJlZCBHMiBTTUlNRSBSU0E0MDk2IFNIQTM4NCAyMDI0IENBMTAeFw0yNjA3MTgwMDAwMDBa Fw0yODAxMDQyMzU5NTlaMB4xHDAaBgNVBAMME2R3bXcyQGluZnJhZGVhZC5vcmcwggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDali7HveR1thexYXx/W7oMk/3Wpyppl62zJ8+RmTQH4yZe YAS/SRV6zmfXlXaZsNOE6emg8WXLRS6BA70liot+u0O0oPnIvnx+CsMH0PD4tCKSCsdp+XphIJ2z kC9S7/yHDYnqegqtw4smkqUqf0WX/ggH1Dckh0vHlpoS1OoxqUg+ocU6WCsnuz5q5rzFsHxhD1qG pgFdZEk2/c//ZvUNi12vPWipk8TcJwHw9zoZ/ZrVNybpMCC0THsJ/UEVyuyszPtNYeYZAhOJ41va v1RhZJzYan4a1gU0kKBPQklcpQEhq48woEu15isvwWh9/+5jjh0L+YNaN0I//nHSp6U9COUG9Z0c vnO8FM6PTqsnSbcc0j+GchwOHRC7aP2t5v2stVx3KbptaYEzi4MQHxm/0+HQpMEVLLUiizJqS4PW PU6zfQTOMZ9uLQRRci+c5xhtMEBszlQDOvEQcyEG+hc++fH47K+MmZz21bFNfoBxLP6bjR6xtPXt REF5lLXxp+CJ6KKSblPKeVRg/UtyJHeFKAZXO8Zeco7TZUMVHmK0ZZ1EpnZbnAhKE19Z+FJrQPQr lR0gO3lBzuyPPArVhvWxjlO7S4DmaEhLzarWi/ze7EGwWSuI2eEa/8zU0INUsGI4ywe7vepQz7Iq aAovAX0d+f1YjbmCVsAwjhLmveFjNwIDAQABo4IB9zCCAfMwHwYDVR0jBBgwFoAU95uiTtOXxfQ0 D0MOgYXOkZMyr/kwHQYDVR0OBBYEFFxiGptwbOfWOtMk5loHw7uqWUOnMDAGA1UdEQQpMCeBE2R3 bXcyQGluZnJhZGVhZC5vcmeBEGRhdmlkQHdvb2Rob3Uuc2UwFAYDVR0gBA0wCzAJBgdngQwBBQEC MA4GA1UdDwEB/wQEAwIF4DAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYBBQUHAwQwgakGA1UdHwSB oTCBnjBNoEugSYZHaHR0cDovL2NybDMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0QXNzdXJlZEcyU01J TUVSU0E0MDk2U0hBMzg0MjAyNENBMS5jcmwwTaBLoEmGR2h0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNv bS9EaWdpQ2VydEFzc3VyZWRHMlNNSU1FUlNBNDA5NlNIQTM4NDIwMjRDQTEuY3JsMIGNBggrBgEF BQcBAQSBgDB+MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wVgYIKwYBBQUH MAKGSmh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFzc3VyZWRHMlNNSU1FUlNB NDA5NlNIQTM4NDIwMjRDQTEuY3J0MA0GCSqGSIb3DQEBCwUAA4ICAQChxpuuHVw93mze9jmueUFV BJNzvOzZlazrt0AiW1H7TlYQutgKVXPNSEyz8s4k+WsRSjjlQMOiZerfwPEV6lo9336I0uNd+ffc Rf8gbjiPTiVT+gX9GD1V5AguRgtsJn/H3A6M0dlzhI3J1jsOG9/+xPloHPzy7sPn5rNkntB/VTnv Bix4IfUy3ScOu2vnLX0gnwP3EknfdEUvq9+kdkEEBDz7dGqQo3EuhXZoW9CHF2GM0sOpO/cuNQh2 JzA+to3smTES7sJXYuRrt5GomCRYvtIrRiYGMalFp+z6Jw/843lEIIpNNvpWVfx5Mbawkl+wWG8k 0IK3rF7FtbNa0it8/s288G/AEHvfsDIQYFmRLlo2LNMxxREkZO/1Qq8GHUsX/602Fi0u88I3uh5w bOEIeG32NzBKTKBOjdjpiUrdCA676dyaIFt967CUtnUvFti8bqGA2pe/u7pjIANthqMBAlcnY5B6 ff2mbdD8BBLItgb4HyUOCVawzy1hc+UR2tglySwYroWeohfoG6afjesGigsl2JmnhaZ9Z0vanF74 vFEOOmuaq7VamuLEPFQtJM4olmipOW6CzrLcFz6J/6yAecEG3P1ZDoy08eSHvM40MAUgpwGa/w6o 9ALHQXda/c4TJvAylfHQ6wqArzAuV1pfWldwy7IOBMtKqzQBXQ4dSDGCBCAwggQcAgEBMHYwYjEL MAkGA1UEBhMCVVMxFzAVBgNVBAoTDkRpZ2lDZXJ0LCBJbmMuMTowOAYDVQQDEzFEaWdpQ2VydCBB c3N1cmVkIEcyIFNNSU1FIFJTQTQwOTYgU0hBMzg0IDIwMjQgQ0ExAhADNSi2uzJskfEdOMo4hV0g MA0GCWCGSAFlAwQCAQUAoIIBezAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJ BTEPFw0yNjA4MTMxMDA1NThaMC8GCSqGSIb3DQEJBDEiBCDhmHQLwZ22F0PmKs/1xrghdyZi2fNk YQv/AsjKPm4sNzCBhQYJKwYBBAGCNxAEMXgwdjBiMQswCQYDVQQGEwJVUzEXMBUGA1UEChMORGln aUNlcnQsIEluYy4xOjA4BgNVBAMTMURpZ2lDZXJ0IEFzc3VyZWQgRzIgU01JTUUgUlNBNDA5NiBT SEEzODQgMjAyNCBDQTECEAM1KLa7MmyR8R04yjiFXSAwgYcGCyqGSIb3DQEJEAILMXigdjBiMQsw CQYDVQQGEwJVUzEXMBUGA1UEChMORGlnaUNlcnQsIEluYy4xOjA4BgNVBAMTMURpZ2lDZXJ0IEFz c3VyZWQgRzIgU01JTUUgUlNBNDA5NiBTSEEzODQgMjAyNCBDQTECEAM1KLa7MmyR8R04yjiFXSAw DQYJKoZIhvcNAQEBBQAEggIAiDL7BkLCv2zc4truZ7NYFudjZfrUKSyfGMuZDDi4gUIwhGmBNvsu cVFmP6HNikjn78cdDDclL4e4BR42wldF+f7KjDVDOZnl0wrcZ74hazdCgNx0eMvHcjCYKVHXczxl 4bXExslfnHzzExyKaBakY+narTsB/TXLeM31alaZDkPpJdXozn71CR+BaToYIla95m9cnct7tAmZ i0zHZlOuNI+DlwBcMpVlKt9PFKbZdnyH5GKyIaaLCKwHyIXXcO3fFDhN8mTFz5AXKim5nzQSzJZq yF6ce02HU9IavwrWUoOwEs7mJANi+afHZNSEAK4wF2nG209EWGRaIM2sG4t/wm07IQTznXPh4Q9T U1zu0kDktpxpwV9XNUGNpZWXyEJqJTyS5BUFIVimNgJlOgYOgFQeM17ZqeKJSZKzr8pQcGeUVzX2 1vve1OYtEfM4Ja3xPOc1iAC1mXOTCrVoNKjh+HnkwqsFZ+3jYO/XeWEgQ57GHXsfwqmhXKaI2BEX /IrEWUw63XbqqiyBfg1IqMLCTxW2leutINIBxWZyayfmuE85XjBB7fSbvlawYAQNsl2pWClJSnzR 1DhPEIxrRX1Frp4r6A98yF2YdA1+yUFxZZbzufqKfU6AMFsovVag02eM0cEywZ7Qy1xref1TIAF8 5i0Yfu55bGt9qM5zRPcJmIkAAAAAAAA= --=-eOe2XJemHWfQW7ObkaU0--