Messages in this thread | | | From | Jia-Ju Bai <> | Subject | [BUG] mm/vmalloc: ___might_sleep is called under a spinlock in __purge_vmap_area_lazy | Date | Mon, 9 Oct 2017 12:00:33 +0800 |
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The ___might_sleep is called under a spinlock, and the function call graph is: __purge_vmap_area_lazy (acquire the spinlock) cond_resched_lock ___might_sleep
In this situation, ___might_sleep may prints error log message because a spinlock is held. A possible fix is to remove ___might_sleep in cond_resched_lock.
This bug is found by my static analysis tool and my code review.
Thanks, Jia-Ju Bai
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