From: Ondrej Kozina <okozina@redhat.com>
To: Matthias Dahl <ml_linux-dm-devel@binary-island.eu>, dm-devel@redhat.com
Subject: Re: [4.4, 4.5, 4.6] Regression: encrypted swap (dm-crypt) freezes system while under memory pressure and swapping
Date: Wed, 27 Apr 2016 17:13:24 +0200 [thread overview]
Message-ID: <5720D714.9010504@redhat.com> (raw)
In-Reply-To: <f42fde0f-fb4c-89a5-6199-bf7dd42c97d0@binary-island.eu>
On 04/27/2016 02:44 PM, Matthias Dahl wrote:
> Hello @all,
>
> since I haven't seen any replies to this so far, is there anything else
> I can do to help track this bug down?
>
> I have posted the original message to both the lkml as well as dm-devel
> lists, by the way, without much luck. ;-)
>
> Thanks in advance -- and sorry for kind of re-posting the issue.
>
> So long,
> Matthias
>
Hi Matthias,
I observe that putting swap on top of dm-crypt (tested in current 4.6-rc
kernel) have some unexpected side effects. Most notably it seems to me
that oom killer joins the party quite prematurely even when there
remains plenty of free swap space (almost all). But I didn't experience
any permanent system freeze or crash. Just, let us dig deeper for a while...
Thank you for the report!
O.
next prev parent reply other threads:[~2016-04-27 15:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-18 15:41 [4.4, 4.5, 4.6] Regression: encrypted swap (dm-crypt) freezes system while under memory pressure and swapping Matthias Dahl
2016-04-27 12:44 ` Matthias Dahl
2016-04-27 15:13 ` Ondrej Kozina [this message]
2016-04-28 9:04 ` Matthias Dahl
2016-04-28 9:24 ` Matthias Dahl
2016-04-27 12:44 ` Matthias Dahl
-- strict thread matches above, loose matches on Subject: below --
2016-04-21 7:48 Matthias Dahl
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