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    SubjectRe: bonnie and 2.3.8
    On Thu, Jun 24, 1999 at 12:34:40AM +0200, Guest section DW wrote:
    dwguest> > 03:01: rw=0, want=2138996093, limit=2015968
    dwguest>
    dwguest> We might want to add
    dwguest>
    dwguest> printk(KERN_INFO "dev %s blksize=%d blocknr=%d sector=%d size=%d count=%d\n",
    dwguest> kdevname(bh->b_dev),
    dwguest> blksize_size[major][MINOR(bh->b_dev)],
    dwguest> bh->b_blocknr, bh->b_rsector, bh->b_size, bh->b_count);
    dwguest>
    dwguest> after the printk(KERN_INFO "%s: rw=%d, want=%d, limit=%d\n", ... b_rdev)]);
    dwguest> in make_request() in ll_rw_blk.c - just to make sure that all is OK
    dwguest> (no buffer_head corruption) and only b_blocknr is ridiculous.
    dwguest>
    dwguest> As far as I recall, this kind of messages has mostly been reported by people
    dwguest> using FAT, where it may be [have been] a fs problem, and by people who
    dwguest> got this error together with other SCSI-related error messages.

    I've added the printk:

    Jun 24 14:57:10 Cnn kernel: attempt to access beyond end of device
    Jun 24 14:57:10 Cnn kernel: 03:01: rw=0, want=656811301, limit=2015968
    Jun 24 14:57:10 Cnn kernel: dev 03:01 blksize=1024 blocknr=656811300 sector=1313622600 size=1024 count=1

    the numbers look ok - b_blocknr is too large.

    this happens with:
    - kernel 2.3.9-pre1 (also with 2.3.8-pre2, 2.3.8)
    - ide drive (03:01), ext2 root partition (not fat)

    [root@Cnn]:bonnie/:# ./bonnie
    File './Bonnie.893', size: 104857600
    Writing with putc()...done
    Rewriting...^C

    as soon as bonnie gets to the `rewriting' part the errors appear.

    --
    Catalin Muresan
    CODEC Electronic Products
    Internet Services Department
    699389.26 632110.85

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