* Scott Hess <[EMAIL PROTECTED]> [000126 10:08] wrote:
> Since nobody here seems to be able to figure it out... I wrote a program to
> play around with aio_read(), and it ran stellarly well on my
> FreeBSD3.4-release system using EIDE hard drives. But, when I tried to run
> it on a system using our production kernel with Adaptec SCSI controllers,
> it locked the kernel up HARD. No console messages, no Ctrl-Alt-Del, had to
> push the hard reset switch.
>
> The kernel in question is a FreeBSD3.4-release kernel compiled with a
> different set of options (lots of mbufs, etc, etc). I can't find anything
> in it that seems at all related to async I/O. The appropriate sysctl
> values all seem the same between the systems. And the fact that it locks
> the system up instead of saying ENOTSUPP or "async I/O not compiled in"
> concerns me greatly.
>
> Any ideas on why this might be happening?
No, please provide a debug traceback and file a PR, see:
http://www.freebsd.org/handbook/kerneldebug.html
thanks,
-Alfred
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