From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Anholt Subject: Re: [BISECTED] vc4: f309946 crashes the kernel if vc4 can't allocate buffers Date: Wed, 02 Aug 2017 12:23:33 -0700 Message-ID: <87wp6l93ka.fsf@eliezer.anholt.net> References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0791080485==" Return-path: Received: from anholt.net (anholt.net [50.246.234.109]) by gabe.freedesktop.org (Postfix) with ESMTP id 2427589F4A for ; Wed, 2 Aug 2017 19:23:36 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Noralf =?utf-8?Q?Tr=C3=B8nnes?= Cc: DRI Development List-Id: dri-devel@lists.freedesktop.org --===============0791080485== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Noralf Tr=C3=B8nnes writes: > The following commit crashes the kernel if vc4 can't allocate buffers: > > drm/vc4: Add an ioctl for labeling GEM BOs for summary stats > > It boots fine if I give it enough memory: cma=3D128M > I'm doing this on a Pi1 with bcm2835_defconfig. I'm successfully reproducing issues, even without the patch. I've reverted it locally and I'm chewing through kmalloc debug stuff, then I'll unrevert and see what I can find. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE/JuuFDWp9/ZkuCBXtdYpNtH8nugFAlmCJrUACgkQtdYpNtH8 nui/vA/8Cmt1mmD94XI/gydTU8XxjEjkyIYY3efYq2DYs6QYDWNRgw5PGu0Zl8QW eWFSW65j4axqZGFniy5k4pEYcL6MQWpaxhTQ2uLAwak8hBCmJAuyti8KMYH9cc22 F7xrQ9ZaqX3W/9+TfLTXQ+VUzUK7uVRfvf7Wor+BfpiR92g7v41NEBJjgAY8MDt6 P7Hg04LHgIBC2RxFH22T7LIYDV4m/2BjUruLnVNJjCqFFalo+dJKEcWg90Fmb14L w2lLLAmYcwy0mPUUZ5zFgDzAngQThv3g9ZS2v4vfrNVAKUG8IECYb88xUU/hB3Mj 8sgod1JbPf16Z2eBOjh71yX71dAUenZS5/fE8FDW8K5bFMfgCW6L113PnoHk9z4O JpZ+aupZg9yLcJnjT8klL9E8G94DroDclXBpnW5fM6E/8zrf7ZMR2uswTPlwpq/s pBNazrO9DYLQf2fneKRtCY7wrLRhAZ/2lVEthIW3goZTAQBNWfKM1GDUdxFqqGIT Me8ojXdp8fBWszeLBka4L8/wak/jdM0aeB02k1MAJQYqEMq/6MyFl8lzGxySkhsK s98wuhYOAg034vL9K0rzwYe7ZNOJQHiVCqdYQPKqdRJczs1OeygE1YNgbo5TG4A5 9bCCVHsL21owEJJIbinhO4XrgCyRifs+LrYd1DSJ5/fIS1ekNl8= =xEN0 -----END PGP SIGNATURE----- --=-=-=-- --===============0791080485== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0791080485==--