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Date: Wed, 15 Jul 2020 16:37:14 +0200 From: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de> To: Geert Uytterhoeven <geert@...ux-m68k.org> Cc: Rich Felker <dalias@...c.org>, Christoph Hellwig <hch@....de>, Yoshinori Sato <ysato@...rs.sourceforge.jp>, Linux-sh list <linux-sh@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: ioremap and dma cleanups and fixes for superh (2nd resend) Hi Geert! On 7/15/20 10:27 AM, John Paul Adrian Glaubitz wrote: >> Lemme gues: does commit 002ae7057069538a ("mm, dump_page(): do not crash >> with invalid mapping pointer") in v5.8-rc1 help? > > Hmm, it seems I already have that patch (I'm using Linus' main tree): > > commit 002ae7057069538aa3afd500f6f60a429cb948b2 > Author: Vlastimil Babka <vbabka@...e.cz> > Date: Mon Jun 1 21:46:03 2020 -0700 > > mm, dump_page(): do not crash with invalid mapping pointer Okay, kernel 5.0.0 does not suffer from this bug. So I should be able to bisect this particular issue. I'm glad I don't have to start bisecting with earlier kernels because these won't build easily with my current toolchain based on gcc-9. Will report once I found the bad commit that introduced the problem. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@...ian.org `. `' Freie Universitaet Berlin - glaubitz@...sik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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