Cc: Bartlomiej Zolnierkiewicz <bzolnier@...>, Rafael J. Wysocki <rjw@...>, Jens Axboe <jens.axboe@...>, Ingo Molnar <mingo@...>, Linux Kernel Mailing List <linux-kernel@...>
Can you try to sprinkle printk's around to see where it actually ends up
stopping?
Since all special commands should now go through the taskfile interface
(Bartlomiej - correct?), I guess just a printk() at the top of
do_rw_taskfile() should at least get the ball rolling. Even something that
just prints out task->data_phase and tf->command would start to unravel at
least what the last command is before it hangs..
Linus
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