On Sun, Nov 22, 2009 at 8:20 AM, Ofer Heifetz <oferh@xxxxxxxxxxx> wrote:
> Hi Eric,
> I have tried the patch you advised and still get the same error using
> 126.96.36.199, xfs version 2.10.2 on Ubuntu 9.04.
> Any other suggestions you think that might help me with this?
If it is a Marvell chip, we eventually found that we had to add
flush_icache_range, although we were doing that in our SCSI_LLD.
> -----Original Message-----
> From: Eric Sandeen [mailto:sandeen@xxxxxxxxxxx]
> Sent: Wednesday, November 18, 2009 6:04 PM
> To: Ofer Heifetz
> Cc: xfs@xxxxxxxxxxx
> Subject: Re: XFS support for ARMv5
> oferh@xxxxxxxxxxx wrote:
>> I have noticed that XFS on ARMv5TE with latest kernel (188.8.131.52)
>> fails to mount after copying some data and reboot the system.
>> I get "mount: /dev/sda1: can't read superblock", I understand that
>> there were some problems with virtual aliasing that was added to XFS
>> some time ago but ARM arch has not dealt with this properly.
> when you get that error from mount, look at dmesg to see what really went
> wrong ...
>> Is there any patch for this bug?
> This is a big-hammer approach for the aliasing problem:
> Index: linux-2.6.25-rc1/fs/xfs/linux-2.6/xfs_buf.c
> --- linux-2.6.25-rc1.orig/fs/xfs/linux-2.6/xfs_buf.c
> +++ linux-2.6.25-rc1/fs/xfs/linux-2.6/xfs_buf.c
> @@ -1172,6 +1172,7 @@ _xfs_buf_ioapply(
> bio->bi_end_io = xfs_buf_bio_end_io;
> bio->bi_private = bp;
> + flush_dcache_page(bp->b_pages);
> bio_add_page(bio, bp->b_pages, PAGE_CACHE_SIZE, 0);
> size = 0;
> @@ -1198,6 +1199,7 @@ next_chunk:
> if (nbytes > size)
> nbytes = size;
> + flush_dcache_page(bp->b_pages[map_i]);
> rbytes = bio_add_page(bio, bp->b_pages[map_i], nbytes, offset);
> if (rbytes < nbytes)
>> xfsprogs version used: 2.10.2
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