From: Mike Snitzer <snitzer@redhat.com>
To: John Stoffel <john@stoffel.org>
Cc: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] cache on SSD makes system unresponsive
Date: Fri, 20 Oct 2017 23:05:57 -0400 [thread overview]
Message-ID: <20171021030557.GE31049@redhat.com> (raw)
In-Reply-To: <23018.20452.919839.109594@quad.stoffel.home>
On Fri, Oct 20 2017 at 3:35pm -0400,
John Stoffel <john@stoffel.org> wrote:
> >>>>> "Oleg" == Oleg Cherkasov <o1e9@member.fsf.org> writes:
>
> I think you're running into a RedHat bug at this point. I'd probably
> move to Debian and run my own kernel with the latest patches for MD, etc.
There is no reason to think this is a "RedHat bug".. verdict is very much
still out (but yes the kernel core is very different in RHEL7 than
upstream Linux.. though we have no details to suggest _where_ the issue
lies.. if it is a pathologicl dm-cache code issue then RHEL7.4 and
upstream Linux should both see the problem).
Moving distros is a waste of time given that RHEL7.4 and Centos7.4 have
the latest dm-cache code. The issue is likely DM-cache specific (not
RHEL7.4 specific).
In general: RHEL7 or Centos7 will provide the best support of DM-cache.
All developers invested in DM-cache work for Red Hat.
Mike
next prev parent reply other threads:[~2017-10-21 3:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-19 17:54 [linux-lvm] cache on SSD makes system unresponsive Oleg Cherkasov
2017-10-19 18:13 ` Xen
2017-10-20 10:21 ` Oleg Cherkasov
2017-10-20 10:38 ` Xen
2017-10-20 11:41 ` Oleg Cherkasov
2017-10-19 18:49 ` Mike Snitzer
2017-10-20 11:07 ` Joe Thornber
2017-10-19 19:09 ` John Stoffel
2017-10-19 19:46 ` Xen
2017-10-19 21:14 ` John Stoffel
2017-10-20 6:42 ` Xen
2017-10-19 21:59 ` Oleg Cherkasov
2017-10-20 19:35 ` John Stoffel
2017-10-21 3:05 ` Mike Snitzer [this message]
2017-10-21 14:33 ` Oleg Cherkasov
2017-10-23 10:58 ` Zdenek Kabelac
2017-10-21 2:55 ` Mike Snitzer
2017-10-21 14:10 ` Oleg Cherkasov
2017-10-23 20:45 ` John Stoffel
2017-10-20 16:20 ` lejeczek
2017-10-20 16:48 ` Xen
2017-10-20 17:02 ` Bernd Eckenfels
2017-10-24 14:51 ` lejeczek
[not found] <640472762.2746512.1508882485777.ref@mail.yahoo.com>
2017-10-24 22:01 ` matthew patton
2017-10-24 23:10 ` Chris Friesen
[not found] <1928541660.2031191.1508802005006.ref@mail.yahoo.com>
2017-10-23 23:40 ` matthew patton
2017-10-24 15:36 ` Xen
[not found] <1714773615.1945146.1508792555922.ref@mail.yahoo.com>
2017-10-23 21:02 ` matthew patton
2017-10-23 21:54 ` Xen
2017-10-24 2:51 ` John Stoffel
[not found] <1540708205.1077645.1508602122091.ref@mail.yahoo.com>
2017-10-21 16:08 ` matthew patton
[not found] <1244564108.1073508.1508601932111.ref@mail.yahoo.com>
2017-10-21 16:05 ` matthew patton
2017-10-24 18:09 ` Oleg Cherkasov
[not found] <541215543.377417.1508458336923.ref@mail.yahoo.com>
2017-10-20 0:12 ` matthew patton
2017-10-20 6:46 ` Xen
2017-10-20 9:59 ` Oleg Cherkasov
-- strict thread matches above, loose matches on Subject: below --
2017-10-19 10:05 Oleg Cherkasov
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