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From: Pete Zaitcev <zaitcev@redhat.com>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-mm@kvack.org, linux-usb@vger.kernel.org,
	zaitcev@redhat.com
Subject: Re: kernel BUG at ./include/linux/mm.h:LINE! (3)
Date: Sun, 7 Jan 2018 23:22:25 -0600	[thread overview]
Message-ID: <20180107232225.3b6a37ca@lembas.zaitcev.lan> (raw)
In-Reply-To: <20171229132420.jn2pwabl6pyjo6mk@node.shutemov.name>

On Fri, 29 Dec 2017 16:24:20 +0300
"Kirill A. Shutemov" <kirill@shutemov.name> wrote:

> Looks like MON_IOCT_RING_SIZE reallocates ring buffer without any
> serialization wrt mon_bin_vma_fault(). By the time of get_page() the page
> may be freed.

As an update: I tried to make a smaller test for this, but was unsuccessful
so far. I'll poke a bit at it later, but it may take me some time.

-- Pete

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      parent reply	other threads:[~2018-01-08  5:22 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-29  0:03 Fw: " Andrew Morton
2017-12-29 13:24 ` Kirill A. Shutemov
2018-01-03  7:02   ` Pete Zaitcev
2018-01-03  9:26     ` Kirill A. Shutemov
2018-01-03 21:04       ` Pete Zaitcev
2018-01-03 21:08         ` Matthew Wilcox
2018-01-04  0:42           ` Pete Zaitcev
2018-01-08 21:25       ` Pete Zaitcev
2018-01-08 21:46       ` [PATCH] The usbmon triggers a BUG in ./include/linux/mm.h Pete Zaitcev
2018-01-09 15:03         ` Greg Kroah-Hartman
2018-01-08  5:22   ` Pete Zaitcev [this message]

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