Re: Linux 5.5 Breaks Raid1 on Device instead of Partition, Unusable I/O

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To: "David C. Rankin" <drankinatty@xxxxxxxxxxxxxxxxxx>
Subject: Re: Linux 5.5 Breaks Raid1 on Device instead of Partition, Unusable I/O
From: Chris Murphy <lists@xxxxxxxxxxxxxxxxx>
Date: Mon, 2 Mar 2020 00:08:11 -0700
Cc: mdraid <linux-raid@xxxxxxxxxxxxxxx>
In-reply-to: <c5d8e6d2-a572-5602-6562-795ea52168ac@suddenlinkmail.com>
References: <e46b2ae7-3b88-05f2-58d7-94ee3df449e4@suddenlinkmail.com> <20200302102542.309e2d19@natsu> <920df583-1d9e-6037-1d61-cbd5e1133d4d@suddenlinkmail.com> <20200302115141.1e796b7c@natsu> <c5d8e6d2-a572-5602-6562-795ea52168ac@suddenlinkmail.com>

smart also reports for /de/sdc

  40 53 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455


So I'm suspicious of timeout mismatch as well.
https://raid.wiki.kernel.org/index.php/Timeout_Mismatch


Chris Murphy

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