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Tue, 19 May 2020 00:52:48 +0000 From: Song Liu To: Matthew Wilcox , Denis Lisov CC: Andrew Morton , "bugzilla-daemon@bugzilla.kernel.org" , "linux-mm@kvack.org" Subject: Re: [Bug 206569] BUG at mm/filemap.c:2529: VM_BUG_ON_PAGE(page_to_pgoff(page) != offset) Thread-Topic: [Bug 206569] BUG at mm/filemap.c:2529: VM_BUG_ON_PAGE(page_to_pgoff(page) != offset) Thread-Index: AQHV53Z0WBhX/cCyL0eNWJdGBp1eM6gjOYoAgAGKVoCAABjzgIAAfkQAgAjClgCAZdmEgIAbKYMA Date: Tue, 19 May 2020 00:52:48 +0000 Message-ID: References: <20200219144635.3b7417145de19b65f258c943@linux-foundation.org> <20200220002520.GT24185@bombadil.infradead.org> <367AD482-11D3-44D6-94DC-ED4D395084C8@fb.com> <20200501180513.GB29705@bombadil.infradead.org> In-Reply-To: <20200501180513.GB29705@bombadil.infradead.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3608.80.23.2.2) authentication-results: infradead.org; dkim=none (message not signed) header.d=none;infradead.org; 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However, you have CONFIG_DEBUG_VM enabled, so it > would have actually triggered the bug. >=20 > http://git.infradead.org/users/willy/linux-dax.git/commitdiff/2f864b6c27c= aa737ccfe65a86972f6b73a66a095 >=20 > I don't think anything else I've changed will fix this bug, whatever it i= s ;-( I am testing with 5.5.3. However, I still got no luck here. :( I haven't figured out how to build KDE in Gentoo. I tried to build kernel,= =20 many many times, without repro of the issue.=20 Denis, could you please share some information about your test system: 1. # of CPUs; 2. size of RAM; 3. size of swap, if any;=20 4. .config file of the kernel that repros the issue.=20 Thanks, Song