Hi,all We encountered the following panic in 2.6.32 and 3.10.0:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 IP: [] rb_next+0x1/0x50 Call Trace: ? pick_next_task_fair+0x129/0x1d0 [] __schedule+0x12a/0x910 [] schedule+0x29/0x70 [] futex_wait_queue_me+0xc4/0x120 [] futex_wait+0x179/0x280 [] ? hrtimer_get_res+0x50/0x50 [] ? futex_wait_queue_me+0xa2/0x120 [] do_futex+0xfe/0x5b0 [] ? blk_finish_plug+0x14/0x40 [] ? SyS_madvise+0x3c5/0x820 [] SyS_futex+0x80/0x180 [] system_call_fastpath+0x16/0x1b It seems that after passing the check "if (!cfs_rq->nr_running)" , __pick_first_entity sometimes still return NULL, then leads to panic. Would you please give any advise? Thanks a lot. Best regards.
