Hi guys,
I'm debugging a system here based on ICH7/ata_piix.
When we hot-pull a drive, it locks up solid.
That's fine, but I'd like to find/fix the lockup.
So as part of poking around, I rebuilt the kernel with frame pointers,
and inserted a WARN_ON(1) into ata_busy_sleep() to see who was calling it
just before things locked up.
Here's the result: http://rtr.ca/libata.png
Can anyone here make sense of that traceback??
Are we *really* recursing inside the EH code?
Thanks
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