Re: 2.6.0-test6-mm4 - oops in __aio_run_iocbs()

[bill davidsen]

In article <20031009111624.GA11549@xxxxxxxxxx>,
Suparna Bhattacharya  <suparna@xxxxxxxxxx> wrote:
| On Wed, Oct 08, 2003 at 04:18:15PM -0700, Daniel McNeil wrote:
| 
| __aio_run_iocbs should have been called only for buffered i/o, 
| so this sounds like an O_DIRECT fallback to buffered i/o.
| Possibly after already submitting some blocks direct to BIO,
| the i/o completion path for which ends up calling aio_complete
| releasing the iocb. That could explain the use-after-free situation
| you see.
| 
| But, O_DIRECT write should fallback to buffered i/o only if it 
| encounters holes in the middle of the file, not for simple appends 
| as in your case. Need to figure out how this could have happened ...

Are the write kept ordered?
-- 
bill davidsen <davidsen@xxxxxxx>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.
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