Hello, Please note my CPU is this. Intel(R) Xeon(R) CPU E5-4650 v2 @ 2.40GHz stepping 04 From: Giridhara RP (grp) Sent: Tuesday, January 27, 2015 5:37 AM To: kernelnewbies@kernelnewbies.org Subject: Kernel 2.6.32.60 64bit Crash/Hung Hi, I am facing crash/hang with 2.6.32.60 Kernel (64bit). My maxcpus (CONFIG_NR_CPUS) count is 64 and below is the call trace. I see log saying "BUG: spinlock lockup on CPU#74". Is it a known bug? If its fixed let me know the patch. Any pointers really appreciated. Please note, if I change maxcpus=8 kernel boots successfully. Thanks Giri