According to drivers/scsi/dpt_i2o.c, the kernel module may sleep in the
interrupt handler.
The function call path is:
adpt_isr (interrupt handler)
adpt_send_nop
schedule_timeout_uninterruptible --> may sleep
A possible fixing is to replace "schedule_timeout_uninterruptible" with
"mdelay".
If this fixing is correct, I can send a patch.
This possible is found by my static analysis tool (DSAC) and checked by
my code review.
Thanks,
Jia-Ju Bai