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Jones" , Mark W , regressions@lists.linux.dev, Yosry Ahmed Subject: Re: [REGRESSION] Null pointer dereference while shrinking zswap Message-ID: <4c3ppfjxnrqx6g52qvvhqzcc4pated2q5g4mi32l22nwtrkqfq@a4lk6s5zcwvb> References: <3iccc6vjl5gminut3lvpl4va2lbnsgku5ei2d7ylftoofy3n2v@gcfdvtsq6dx2> <246c1f4d-af13-40fa-b968-fbaf36b8f91f@linux.dev> <20240417143324.GA1055428@cmpxchg.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="mhle3o7wggiemwna" Content-Disposition: inline In-Reply-To: <20240417143324.GA1055428@cmpxchg.org> X-Provags-ID: V03:K1:Hu6ARFsvvVHgCkcwEkS9dXvP2UmstGEy2G9caQYE9YebRql4Ioi N7LDq1Yi0B+vKFg6TUC+HnqNoStiFDWhQ0aSP9KKOCC+t7e9okgOcramfuLyMNric1ngQOC EDFRZdBTy6G4a0a7OCuNQ3blKaPXdGd2hHy6td15wwnlO5YjXHrEFqSf8M6vcd0pFMpze9J PSy4lUQwsoY2cjzDsADBQ== UI-OutboundReport: notjunk:1;M01:P0:KftjsT67wLs=;cYmqR3MuM/YVoPw5qeslynROzWr tn09wZkFB1HdkJglMFSSINo64c4U37AxnR7c2/QTJN6VKWXi0t0wc5JU/x8XnyTOvssrndZ5B QliJu5O6E0gl9N+I6qo5tr3z5L0D/Im8WkCN4YAwP83yKRQNDOtFJ2RDh9U8U2ElG60FPInod fFbPZuRzTJQF672qgMk7BgP+FTalyKayMlIpAeyWiUNAMttZPC89jr2Bufcc3KoIhjWl0HoK/ b12VPUHFKH36yhaL8D/1r1krTusoDYgcGlWnNdAj2e+cL8h/+xVVQdH/Prn7M+C6FsZgGrDmP polU0gmCo2NSQowUGCvge+KCZY5Fovua38Aoj28ldPalCG6JXyyu3Wh1ZSxbTYtT2N/o2p8Dg QJhPmSfPrwYG0GD1S5K8B7PfJ9lGDf/8/rSuwI72AzhnqFVy+9BLsxVOJa5s4pettAb23iSsr gztsflrO7B0+NkUfZeRZO9ebH4iuvnBPoRPpLC1P74EO5XDDTve/dH1L87vnCW8p6fcKyVeOJ 9vhn2QN4vceIuzsy7vmiKH8CbkwIvnjzgAm+OrvFh/Ngf3POc1t10iBrPyKzf9ui8hzm/Vacg 2d69VOUUNDwz5ADqkbU06RlyvkTM9AA2JCVTLqhAVBo+cEJTg/74DV2JScGZSo7YbePashWTm 7FUKmBLAXkC+gSeorAN0Js+R9u92pyNZCc+GMQvLmpZKVjFzxKHAf/gcJUf5NAgzARRCCUMDC ZT+g1PXnHeGZMkmhUQ4ifm8In4Az9OznrDwx6Y5iS/5EOOydQ7h5z8= X-Stat-Signature: wiojademzjyyozmz9egtwuxne39ersc7 X-Rspamd-Queue-Id: C904140006 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1713374300-36308 X-HE-Meta: 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 80V5K03c FARQL8NhIgD7x5TuCxXikfTPNVsIIqLg3TAOWaVM8lRCLYF3W94YdHU3C98IXeJLiBW34eC2RgJLZUhhOMuV7DZ+gzjVr/XRg0iTDk64U3IzFWDS7WsKbSeuUxyCVA6QsTP8JZcoLy4VPitHl7kB04cCs9kyzUFiRQvypLmEME2PsIXWN2IdMc+wNcru2XdQ7hN6LCDwMDaHA160xvkPo18CWpFJPybjBfCVYoyIjYn9jCS4dYnPW02OmzzUZqRtaWu61sqs96qlLgG2Snk/oRDbeqUOJK9kGiR1j3hexnHu6aOOCBFdNyC//TsYRDGKUUt9Ix+ETxSIMMQWyR+ksvBWzgZkdQOQxcpQh2a6NeFehdjXH54vDkHtQpBpwRv62n22smtUl3dF7xcZKaFoK4Vb79/Fqp3I9f+/VoxJPxaehysxa6aeMX+1zT1UAhghjST2FObx5nj3x15+6omxufdTSzA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --mhle3o7wggiemwna Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 24/04/17 10:33AM, Johannes Weiner wrote: > > Christian, can you please test the below patch on top of current > upstream? > Hey Johannes, I have applied your patch on top of 6.9-rc4 and it did solve the crash for me, thanks for hacking together a fix so quickly! =F0=9F=A4=97 Tested-By: Christian Heusel Cheers, Christian --mhle3o7wggiemwna Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEb3ea3iR6a4oPcswTwEfU8yi1JYUFAmYgBFYACgkQwEfU8yi1 JYUKdBAA4Fyzs10M1Ur29NG5u2SyE4mvONWC/sTTbVYJq/8EZgEunaQPmb7adXxl xo1uqgxGFpGHSKzSqobkPnBWiVdabsHyWvOEZjtZ+r4IdF5dvPk5YNsgIK+I5JsZ ulfwgtnAoDwF8AbgvELX4+SHm0Cm2fnzuZxW60AgNGVPXae7/TOoCE2Ex0Eu+gFq k8grFw8zzvziyFEGcB7p5UQ+XSZZfb4LnHAcP88fqKSLON+nKfjTO8qze2cOzR3Y ziv5IrhXLnjl/aXzood4pNsLJgR3p2FzpMTwBsXHvtUevYw6+gNYOE+3qtyjftfP 9nt12VSJUgTDDrLhQv4XPQDyHS8cqehPW75YmCnSktjpeGjmrTbKXmbQ4bh0bYRl 9df/G4yGefcCeLnt6eD8l4KgfRmyLepIS2BxwVnIVlK35Bj93kbey0LXrsFRL784 PCS/2FskmbC6DwDyfhcYrzt0OvUxcQWUJxgvD0qumE+WvyJcF6DmfN3yy3nSL6en WHb68SYfB4edj6dNwVE0KtcR7EZFBi5/ETgBeHUTM99B6lcTElmCtG29qvj/nBYs y9mUHFm8fFk1NWOcSFJYEadA/Zf4sw5e8JY4fAF4WbLMkpkKUm7bz1V/vfdyriaJ vycgvzV9Q8nD2ccTY/3WYX5ePaiSLFdxbswqFnbDs09tcjHx/ro= =ryG3 -----END PGP SIGNATURE----- --mhle3o7wggiemwna--