diff options
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index f2ae9cb57ff0..a17b6efb8bfe 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -330,6 +330,7 @@ void show_regs(struct pt_regs *regs) void show_registers(struct pt_regs *regs) { const int field = 2 * sizeof(unsigned long); + mm_segment_t old_fs = get_fs(); __show_regs(regs); print_modules(); @@ -344,9 +345,13 @@ void show_registers(struct pt_regs *regs) printk("*HwTLS: %0*lx\n", field, tls); } + if (!user_mode(regs)) + /* Necessary for getting the correct stack content */ + set_fs(KERNEL_DS); show_stacktrace(current, regs); show_code((unsigned int __user *) regs->cp0_epc); printk("\n"); + set_fs(old_fs); } static int regs_to_trapnr(struct pt_regs *regs) @@ -1488,10 +1493,14 @@ int register_nmi_notifier(struct notifier_block *nb) void __noreturn nmi_exception_handler(struct pt_regs *regs) { + char str[100]; + raw_notifier_call_chain(&nmi_chain, 0, regs); bust_spinlocks(1); - printk("NMI taken!!!!\n"); - die("NMI", regs); + snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n", + smp_processor_id(), regs->cp0_epc); + regs->cp0_epc = read_c0_errorepc(); + die(str, regs); } #define VECTORSPACING 0x100 /* for EI/VI mode */ |