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From: Neil Brown <neilb@cse.unsw.edu.au>
To: Simon Kirby <sim@netnation.com>
Date: Tue, 18 Mar 2003 16:38:42 +1100
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Message-ID: <15990.45282.847803.279070@notabene.cse.unsw.edu.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [2.5.65] MD RAID1 weirdness
In-Reply-To: message from Simon Kirby on Monday March 17
References: <20030318053335.GA673@netnation.com>
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On Monday March 17, sim@netnation.com wrote:
> Just booted from 2.5.65-BK6 to 2.5.65 after an unexpected lockup in X,
> and found weird MD messages at boot followed by an amazingly fast
> (broken :)) resync.  /proc/mdstat now reports:

Sorry 'bout that.

Should be fixed by following patch.

NeilBrown


diff ./drivers/md/raid1.c~current~ ./drivers/md/raid1.c
--- ./drivers/md/raid1.c~current~	2003-03-15 14:40:12.000000000 +1100
+++ ./drivers/md/raid1.c	2003-03-17 09:39:57.000000000 +1100
@@ -840,7 +840,8 @@ static void sync_request_write(mddev_t *
 			 * we read from here, no need to write
 			 */
 			continue;
-		if (conf->mirrors[i].rdev->in_sync && mddev->in_sync)
+		if (conf->mirrors[i].rdev->in_sync && 
+			r1_bio->sector + (bio->bi_size>>9) <= mddev->recovery_cp)
 			/*
 			 * don't need to write this we are just rebuilding
 			 */



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