From: Vlastimil Babka <vbabka@suse.cz>
To: Hugh Dickins <hughd@google.com>, "Shi, Yang" <yang.shi@linaro.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
sfr@canb.auug.org.au, LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: [BUG linux-next] Kernel panic found with linux-next-20160414
Date: Wed, 27 Apr 2016 10:51:20 +0200 [thread overview]
Message-ID: <57207D88.4000508@suse.cz> (raw)
In-Reply-To: <alpine.LSU.2.11.1604270029350.7066@eggly.anvils>
On 04/27/2016 10:14 AM, Hugh Dickins wrote:
> It's rather horrible that compaction.c uses functions in page_alloc.c
> which skip doing some of the things we expect to be done: the non-debug
> preparation tends to get noticed, but the debug options overlooked.
> We can expect more problems of this kind in future: someone will add
> yet another debug prep line in page_alloc.c, and at first nobody will
> notice that it's also needed in compaction.c.
Point taken, I'll try to come up with more maintainable solution next
time I attempt the isolate_freepages_direct() approach. Sorry about the
troubles.
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WARNING: multiple messages have this Message-ID (diff)
From: Vlastimil Babka <vbabka@suse.cz>
To: Hugh Dickins <hughd@google.com>, "Shi, Yang" <yang.shi@linaro.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
sfr@canb.auug.org.au, LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: [BUG linux-next] Kernel panic found with linux-next-20160414
Date: Wed, 27 Apr 2016 10:51:20 +0200 [thread overview]
Message-ID: <57207D88.4000508@suse.cz> (raw)
In-Reply-To: <alpine.LSU.2.11.1604270029350.7066@eggly.anvils>
On 04/27/2016 10:14 AM, Hugh Dickins wrote:
> It's rather horrible that compaction.c uses functions in page_alloc.c
> which skip doing some of the things we expect to be done: the non-debug
> preparation tends to get noticed, but the debug options overlooked.
> We can expect more problems of this kind in future: someone will add
> yet another debug prep line in page_alloc.c, and at first nobody will
> notice that it's also needed in compaction.c.
Point taken, I'll try to come up with more maintainable solution next
time I attempt the isolate_freepages_direct() approach. Sorry about the
troubles.
next prev parent reply other threads:[~2016-04-27 8:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-19 23:43 [BUG linux-next] Kernel panic found with linux-next-20160414 Shi, Yang
2016-04-19 23:43 ` Shi, Yang
2016-04-20 7:42 ` Vladimir Murzin
2016-04-20 7:42 ` Vladimir Murzin
2016-04-20 7:42 ` Vladimir Murzin
2016-04-20 8:01 ` Hugh Dickins
2016-04-20 8:01 ` Hugh Dickins
2016-04-20 16:11 ` Shi, Yang
2016-04-20 16:11 ` Shi, Yang
2016-04-27 8:14 ` Hugh Dickins
2016-04-27 8:14 ` Hugh Dickins
2016-04-27 8:51 ` Vlastimil Babka [this message]
2016-04-27 8:51 ` Vlastimil Babka
2016-04-28 18:21 ` Shi, Yang
2016-04-28 18:21 ` Shi, Yang
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