Messages in this thread | | | Date | Mon, 6 Aug 2007 02:21:55 +0800 | From | "Othello Reversi" <> | Subject | Calling add_disk() from a work_queue item |
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Hi List,
I would like to know why calling add_disk() from a kernel thread which is running from a work_queue would cause the work item to block with the "D" (disk wait) state at best under kernel 2.6.17 and cause a hard-lockup on kernel 2.6.22.1?
If I recall correctly, work items running on the work_queue are allowed to sleep, and add_disk() is known to sleep. Did I miss out some details such as a lock I have to acquire?
Hope to hear a reply soon.
Regards, Othello
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