Messages in this thread Patch in this message | | | Date | Mon, 27 Jan 2003 12:30:02 +0100 | From | Jens Axboe <> | Subject | Re: Solved 2.4.21-pre3aa1 and RAID-0 issue (was: Re: 2.4.21-pre3aa1 and RAID0 issue] |
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On Mon, Jan 27 2003, Srihari Vijayaraghavan wrote: > Hello Andrea, > > On Thursday 23 January 2003 01:02, Srihari Vijayaraghavan wrote: > > ... > > Ok. I did some more testing, and this is what happens: > > /sbin/raidstart /dev/md0 executes and exits fine under 2.4.21-pre3. Where > > as under 2.4.21-pre3aa1 it starts executing but _never_ exits (I waited for > > few minutes). I had to kill it using alt + sysrq + k. > > ... > > The 9985_blk-atomic-aa5 patch is causing this regression. Backing this patch > out of 2.4.21-pre3aa1 makes it to work nicely with Software RAID-0.
Could you please try this patch on top of 2.4.21-pre3aa1 instead of backing out blk-atomic? Does that work, too? Thanks!
===== drivers/md/md.c 1.38 vs edited ===== --- 1.38/drivers/md/md.c Thu Jan 16 00:15:01 2003 +++ edited/drivers/md/md.c Mon Jan 27 12:23:41 2003 @@ -494,6 +494,7 @@ bh.b_page = page; bh.b_reqnext = NULL; bh.b_data = page_address(page); + bh.b_elv_sequence = 0; generic_make_request(rw, &bh); run_task_queue(&tq_disk); ===== drivers/md/raid1.c 1.15 vs edited ===== --- 1.15/drivers/md/raid1.c Sat Aug 31 02:20:48 2002 +++ edited/drivers/md/raid1.c Mon Jan 27 12:27:44 2003 @@ -686,6 +686,7 @@ mbh->b_list = BUF_LOCKED; mbh->b_end_io = raid1_end_request; mbh->b_private = r1_bh; + mbh->b_elv_sequence = bh->b_elv_sequence; mbh->b_next = r1_bh->mirror_bh_list; r1_bh->mirror_bh_list = mbh; @@ -1456,6 +1457,7 @@ bh->b_private = r1_bh; bh->b_blocknr = sector_nr; bh->b_rsector = sector_nr; + bh->b_elv_sequence = 0; init_waitqueue_head(&bh->b_wait); generic_make_request(READ, bh); -- Jens Axboe
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