From mboxrd@z Thu Jan 1 00:00:00 1970 References: <6cfeccb2-b3f6-dbd0-f5b8-b5e79a25baf8@strike.wu.ac.at> From: "Alexander 'Leo' Bergolth" Message-ID: <64e349d5-51b1-4704-8c2d-ac038929d7e4@strike.wu.ac.at> Date: Thu, 16 Nov 2017 12:02:58 +0100 MIME-Version: 1.0 In-Reply-To: Content-Language: de-AT Content-Transfer-Encoding: 7bit Subject: Re: [linux-lvm] LVM hangs Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: Zdenek Kabelac , LVM general discussion and development On 2017-11-13 15:51, Zdenek Kabelac wrote: > Dne 13.11.2017 v 14:41 Alexander 'Leo' Bergolth napsal(a): >> I have a EL7 desktop box with two sata harddisks and two ssds in a >> LVM raid1 - thin pool - cache configuration. (Just migrated to this >> setup a few weeks ago.) >> >> After some days, individual processes start to block in disk wait. >> I don't know if the problem resides in the cache-, thin- or raid1-layer >> but the underlying block-devices are fully responsive. >> > It would be probably nice to see the result of 'dmsetup status' > > I'd have guessed you are probably hitting 'frozen' raid state > which is unfortunate existing upstream bug. As it just happened again, I have collected some additional info like dmsetup status dmsetup info -c (do the event counts look suspicious?) https://leo.kloburg.at/tmp/lvm-blocks/2017-11-16/ I don't see any volume in "frozen" state. I haven't rebooted the box yet. Maybe I provide some more info? Cheers, --leo -- e-mail ::: Leo.Bergolth (at) wu.ac.at fax ::: +43-1-31336-906050 location ::: IT-Services | Vienna University of Economics | Austria