From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jes.Sorensen@redhat.com Subject: [PATCH 0/1] IMSM do not assume prev + current map in same state means reshape Date: Mon, 17 Oct 2011 22:40:14 +0200 Message-ID: <1318884015-14749-1-git-send-email-Jes.Sorensen@redhat.com> Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: neilb@suse.de, dledford@redhat.com, lukasz.dorau@intel.com, adam.kwolek@intel.com, Marcin.Labun@intel.com List-Id: linux-raid.ids From: Jes Sorensen Hi, I believe there is a bug in the current IMSM code. It makes the assumption that if the state of the previous map and the current map are the same, it means we are trying to reshape the array. However if you have a large array and just installed on it, and it was still resyncing when you rebooted, it will come up in the same state and 'mdadm -Aa' will fail with an error that it is lacking a resync file. This is what prevents an update Fedora 15 system from booting, such as https://bugzilla.redhat.com/show_bug.cgi?id=736387 If I am missing something here, I'd appreciate to hear about it. Thanks, Jes Jes Sorensen (1): IMSM only run reshape if number of disks has changed super-intel.c | 13 ++++--------- 1 files changed, 4 insertions(+), 9 deletions(-) -- 1.7.6.4