Kernel panic - not syncing: hung_task: blocked tasks: khugepaged holds read lock on mmap_sem during whole huge page allocation
Issue
- A kernel panic occurred since the hung task detector thread (i.e.
khungtaskd) noticed that a task was blocked too long andkhugepagedis found to be the owner of the contended resource:mmap_sem
Environment
- Red Hat Enterprise Linux 6.7
- Red Hat Enterprise Linux 7.2
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