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| author | Min Zhang <mzhang@mvista.com> | 2008-01-30 13:32:11 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:32:11 +0100 |
| commit | 9e8b6d90ac973939c4605236d140ae64d459622b (patch) | |
| tree | fb568a0eacf4a972bb58646eb8f29280063dfe9d /arch/x86/kernel/cpu/mcheck/p4.c | |
| parent | 8b2cb7a8f531d6ca72a8aff873b9bb1c6b3122ba (diff) | |
| download | kernel_samsung_tuna-9e8b6d90ac973939c4605236d140ae64d459622b.zip kernel_samsung_tuna-9e8b6d90ac973939c4605236d140ae64d459622b.tar.gz kernel_samsung_tuna-9e8b6d90ac973939c4605236d140ae64d459622b.tar.bz2 | |
arch/x86/kernel/cpu/mcheck/p4.c: cleanups
SMP, the machine check exception dispatches all logical processors within a
physical package to the machine-check exception handler, so the printk
within each handler outputs concurrently and makes the output unreadable.
Refer to Intel system programming guide Part 1 Section 7.8.5
http://developer.intel.com/design/processor/manuals/253668.pdf
Signed-off-by: Min Zhang <mzhang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/p4.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/p4.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c index 16a6238..cb03a1b 100644 --- a/arch/x86/kernel/cpu/mcheck/p4.c +++ b/arch/x86/kernel/cpu/mcheck/p4.c @@ -158,32 +158,35 @@ static void intel_machine_check(struct pt_regs * regs, long error_code) if (mce_num_extended_msrs > 0) { struct intel_mce_extended_msrs dbg; intel_get_extended_msrs(&dbg); - printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n", - smp_processor_id(), dbg.eip, dbg.eflags); - printk (KERN_DEBUG "\teax: %08x ebx: %08x ecx: %08x edx: %08x\n", - dbg.eax, dbg.ebx, dbg.ecx, dbg.edx); - printk (KERN_DEBUG "\tesi: %08x edi: %08x ebp: %08x esp: %08x\n", + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" + "\teax: %08x ebx: %08x ecx: %08x edx: %08x\n" + "\tesi: %08x edi: %08x ebp: %08x esp: %08x\n", + smp_processor_id(), dbg.eip, dbg.eflags, + dbg.eax, dbg.ebx, dbg.ecx, dbg.edx, dbg.esi, dbg.edi, dbg.ebp, dbg.esp); } for (i=0; i<nr_mce_banks; i++) { rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high); if (high & (1<<31)) { + char misc[20]; + char addr[24]; + misc[0] = addr[0] = '\0'; if (high & (1<<29)) recover |= 1; if (high & (1<<25)) recover |= 2; - printk (KERN_EMERG "Bank %d: %08x%08x", i, high, low); high &= ~(1<<31); if (high & (1<<27)) { rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh); - printk ("[%08x%08x]", ahigh, alow); + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); } if (high & (1<<26)) { rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh); - printk (" at %08x%08x", ahigh, alow); + snprintf (addr, 24, " at %08x%08x", ahigh, alow); } - printk ("\n"); + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", + smp_processor_id(), i, high, low, misc, addr); } } |