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From: Matthew Wilcox <willy@infradead.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: syzbot <syzbot+57876cfc2dca0c6b2e6a@syzkaller.appspotmail.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	mike.kravetz@oracle.com, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] BUG: unable to handle kernel paging request in alloc_huge_page
Date: Sun, 15 Aug 2021 00:24:48 +0100	[thread overview]
Message-ID: <YRhQwOvZNBRZqk9O@casper.infradead.org> (raw)
In-Reply-To: <20210814150652.c61e3c09a58222260fa2d02d@linux-foundation.org>

On Sat, Aug 14, 2021 at 03:06:52PM -0700, Andrew Morton wrote:
> On Sat, 14 Aug 2021 04:07:23 -0700 syzbot <syzbot+57876cfc2dca0c6b2e6a@syzkaller.appspotmail.com> wrote:
> > HEAD commit:    92d00774360d Add linux-next specific files for 20210810
> > RIP: 0010:__list_add include/linux/list.h:71 [inline]
> > RIP: 0010:list_add include/linux/list.h:86 [inline]
> > RIP: 0010:alloc_huge_page+0xdcb/0x11b0 mm/hugetlb.c:2821
> 
> That appears to be
> 
> 		list_add(&page->lru, &h->hugepage_activelist);
> 
> I'm suspecting Mike's surplus page changes?

Is this not the same as
https://lore.kernel.org/linux-mm/846c4502-3332-0d25-87f5-cb3b71afc38f@quicinc.com/
which is already patched in your tree?


  reply	other threads:[~2021-08-14 23:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-14 11:07 [syzbot] BUG: unable to handle kernel paging request in alloc_huge_page syzbot
2021-08-14 22:06 ` Andrew Morton
2021-08-14 23:24   ` Matthew Wilcox [this message]
2021-08-15 18:17     ` Mike Kravetz
2021-08-16  7:47       ` Dmitry Vyukov
2021-08-16 17:00         ` Mike Kravetz

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