Run KTS test sysrq and kernel crash. Core dump below: [12160.254145] sysrq: SysRq : Show Regs [12160.257760] BUG: using __this_cpu_read() in preemptible [00000000 00000000] code: runtest.sh/26060 [12160.257775] caller is __this_cpu_preempt_check+0x1c/0x20 [12160.257784] CPU: 11 PID: 26060 Comm: runtest.sh Tainted: G C O 4.1.21-rt13-wrl800.20_1.78_2 #1 [12160.257787] Hardware name: LSI Axxia [12160.257806] [<c0419864>] (unwind_backtrace) from [<c04143dc>] (show_stack+0x20/0x24) [12160.257819] [<c04143dc>] (show_stack) from [<c096e99c>] (dump_stack+0x94/0xac) [12160.257829] [<c096e99c>] (dump_stack) from [<c06e1b9c>] (check_preemption_disabled+0x178/0x17c) [12160.257838] [<c06e1b9c>] (check_preemption_disabled) from [<c06e1be0>] (__this_cpu_preempt_check+0x1c/0x20) [12160.257849] [<c06e1be0>] (__this_cpu_preempt_check) from [<c073ba1c>] (sysrq_handle_showregs+0x20/0x44) [12160.257859] [<c073ba1c>] (sysrq_handle_showregs) from [<c073c358>] (__handle_sysrq+0xb8/0x180) [12160.257868] [<c073c358>] (__handle_sysrq) from [<c073c8c4>] (write_sysrq_trigger+0x48/0x58) [12160.257880] [<c073c8c4>] (write_sysrq_trigger) from [<c059ba08>] (proc_reg_write+0x6c/0x94) [12160.257891] [<c059ba08>] (proc_reg_write) from [<c05430b0>] (__vfs_write+0x28/0x48) [12160.257900] [<c05430b0>] (__vfs_write) from [<c05438d4>] (vfs_write+0xa0/0x17c) [12160.257909] [<c05438d4>] (vfs_write) from [<c054416c>] (SyS_write+0x54/0xb0) [12160.257919] [<c054416c>] (SyS_write) from [<c040fdc0>] (ret_fast_syscall+0x0/0x3c) There was Call Trace/BUG information during the testing
