From: Yang Shi <yang.shi@linux.alibaba.com>
To: Qian Cai <cai@lca.pw>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk()
Date: Mon, 27 Jan 2020 11:57:17 -0800 [thread overview]
Message-ID: <d6c1a434-8670-97f4-345c-28c8007a25ce@linux.alibaba.com> (raw)
In-Reply-To: <1221B3C6-6A3B-4427-92DD-25AD54FF6BB5@lca.pw>
On 1/27/20 10:17 AM, Qian Cai wrote:
>
>> On Jan 15, 2020, at 1:09 AM, Yang Shi <yang.shi@linux.alibaba.com> wrote:
>>
>> The VM_BUG_ON() is already used by queue_pages_test_walk(), it sounds
>> better to dump more debug information by using VM_BUG_ON_VMA() to help
>> debugging.
> What’s the problem this is trying to resolve? Was there an existing bug would trigger this?
Dumping more information to help debugging. I don't run into related bug
personally.
next prev parent reply other threads:[~2020-01-27 19:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 6:09 [PATCH] mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk() Yang Shi
[not found] ` <2020011520081970082765@gmail.com>
2020-01-15 17:27 ` Yang Shi
[not found] ` <20200116235250155994144@gmail.com>
2020-01-27 16:59 ` Yang Shi
2020-01-27 18:17 ` Qian Cai
2020-01-27 19:57 ` Yang Shi [this message]
2020-01-27 20:23 ` Qian Cai
2020-02-14 5:26 ` Andrew Morton
2020-02-14 12:24 ` Qian Cai
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