sporadic system freeze when using sched_deadline
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Description
**Issue description:**
Using three dl tasks (5ms, 25ms and 200ms) along with a SCHED_FIFO class task with the highest FIFO priority the kernel gets trapped into "BUG_ON(!p->dl.dl_boosted || flags != ENQUEUE_REPLENISH);"
**Environment description:**
**Machine:** 6th gen Mobile Intel Xeon Quad-core (8-thread) E3-1505M v5 at 2.8 GHz
**Operating System:** Poky 3.1.17 intel-core-i7-64
**Kernel:** 5.4/preempt-rt
Any kind of help would be appreciated!
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