From: David Laight <David.Laight@ACULAB.COM>
To: 'Tony Luck' <tony.luck@intel.com>,
Shuai Xue <xueshuai@linux.alibaba.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>,
Naoya Horiguchi <naoya.horiguchi@nec.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Matthew Wilcox <willy@infradead.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Nicholas Piggin <npiggin@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
Dan Williams <dan.j.williams@intel.com>
Subject: RE: [PATCH v2] mm, hwpoison: Try to recover from copy-on write faults
Date: Fri, 21 Oct 2022 04:11:23 +0000 [thread overview]
Message-ID: <1643d19d795b4a8084228eab66a7db9f@AcuMS.aculab.com> (raw)
In-Reply-To: <Y1IbOAvpGzA8bst1@agluck-desk3.sc.intel.com>
From: Tony Luck
> Sent: 21 October 2022 05:08
....
> When we do return to user mode the task is going to be busy servicing
> a SIGBUS ... so shouldn't try to touch the poison page before the
> memory_failure() called by the worker thread cleans things up.
What about an RT process on a busy system?
The worker threads are pretty low priority.
David
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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2022-10-21 4:12 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <SJ1PR11MB60838C1F65CA293188BB442DFC289@SJ1PR11MB6083.namprd11.prod.outlook.com>
2022-10-19 17:08 ` [PATCH v2] mm, hwpoison: Try to recover from copy-on write faults Tony Luck
2022-10-19 17:45 ` Dan Williams
2022-10-19 20:30 ` Luck, Tony
2022-10-20 1:57 ` Shuai Xue
2022-10-20 20:05 ` Tony Luck
2022-10-21 1:38 ` Miaohe Lin
2022-10-21 3:57 ` Luck, Tony
2022-10-21 1:52 ` Shuai Xue
2022-10-21 4:08 ` Tony Luck
2022-10-21 4:11 ` David Laight [this message]
2022-10-21 4:41 ` Luck, Tony
2022-10-21 9:29 ` Shuai Xue
2022-10-21 16:30 ` Luck, Tony
2022-10-23 15:04 ` Shuai Xue
2022-10-21 6:57 ` Shuai Xue
2022-10-21 20:01 ` [PATCH v3 0/2] Copy-on-write poison recovery Tony Luck
2022-10-21 20:01 ` [PATCH v3 1/2] mm, hwpoison: Try to recover from copy-on write faults Tony Luck
2022-10-25 5:46 ` HORIGUCHI NAOYA(堀口 直也)
2022-10-28 2:11 ` Miaohe Lin
2022-10-28 16:09 ` Luck, Tony
2022-11-02 14:27 ` Alexander Potapenko
2022-11-02 14:30 ` Alexander Potapenko
2022-10-21 20:01 ` [PATCH v3 2/2] mm, hwpoison: When copy-on-write hits poison, take page offline Tony Luck
2022-10-28 2:28 ` Miaohe Lin
2022-10-28 16:13 ` Luck, Tony
2022-10-29 1:55 ` Miaohe Lin
2022-10-23 15:52 ` [PATCH v3 0/2] Copy-on-write poison recovery Shuai Xue
2022-10-26 5:19 ` Shuai Xue
2022-10-31 20:10 ` [PATCH v4 " Tony Luck
2022-10-31 20:10 ` [PATCH v4 1/2] mm, hwpoison: Try to recover from copy-on write faults Tony Luck
2022-10-31 20:10 ` [PATCH v4 2/2] mm, hwpoison: When copy-on-write hits poison, take page offline Tony Luck
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