Messages in this thread | | | Subject | BUG(?) read-ahead way past end of file? | From | Todd Sabin <> | Date | 16 Sep 1999 23:23:27 -0400 |
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Hi,
On 2.3.18, when copying files off of a CD, I get lots of
Sep 16 16:13:31 banzai3 kernel: _isofs_bmap: block >= EOF (1726, 3532800) Sep 16 16:13:31 banzai3 kernel: _isofs_bmap: block >= EOF (1727, 3532800) Sep 16 16:13:31 banzai3 kernel: _isofs_bmap: block >= EOF (1728, 3532800) [...] Sep 16 16:13:32 banzai3 kernel: _isofs_bmap: block >= EOF (1761, 3532800)
The messages come from a warning in fs/isofs/inode.c about trying to get a block beyond the end of the file. After looking through the code, it seems clear that this is caused by the read-ahead code in mm/filemap.c, which doesn't seem to pay enough attention to inode->i_size.
Of course, I can just delete the warning, but that's probably just fixing the symptom. I'm not at all familiar with the page-cache/read-ahead stuff, so I ask the gurus: is this supposed to be this way?
N.B., this doesn't seem to be isolated to isofs, it just so happens that isofs outputs a warning...
Todd
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