panic: Inactive in scsi_request_queueable, SOLVED!

Dario_Ballabio (Dario_Ballabio@milano.europe.dg.com)
Mon, 4 May 1998 09:03:54 +0200

The problem shows up on single cpu systems too, with drivers
using the new scsi_eh_code (aha1542, u14-34f, eata).
The scsi_bottom_half_handler is broken, because it does
not use the io_request_lock to protect the interrupt
completion routine (scsi_finish_command, which calls rw_intr,
requeue_sd_request and finally the most critical part
scsi_request_queueable).
The fix could be as simple as calling spin_lock/unlock
before and after calling scsi_finish_command, but probably
all the lock design in this routine needs to be revisited.

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