a7y18lte-ubports/android_kernel_samsung_universal7885
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[IA64] MCA: print messages in MCA handler

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Print a message identifying the monarch MCA handler.  Print a summary
of the status of the slave MCA cpus.

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Keith Owens 2006-02-08 13:40:59 +11:00 committed by Tony Luck
parent f564c5fe29
commit 9336b0836b
1 changed files with 23 additions and 2 deletions
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25
arch/ia64/kernel/mca.c
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@ -908,7 +908,7 @@ no_mod:
static void static void
ia64_wait_for_slaves(int monarch) ia64_wait_for_slaves(int monarch)
{ {
int c, wait = 0; int c, wait = 0, missing = 0;
for_each_online_cpu(c) { for_each_online_cpu(c) {
if (c == monarch) if (c == monarch)
continue; continue;
@ -919,15 +919,32 @@ ia64_wait_for_slaves(int monarch)
} }
} }
if (!wait) if (!wait)
return; goto all_in;
for_each_online_cpu(c) { for_each_online_cpu(c) {
if (c == monarch) if (c == monarch)
continue; continue;
if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE) { if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE) {
udelay(5*1000000); /* wait 5 seconds for slaves (arbitrary) */ udelay(5*1000000); /* wait 5 seconds for slaves (arbitrary) */
if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE)
missing = 1;
break; break;
} }
} }
if (!missing)
goto all_in;
printk(KERN_INFO "OS MCA slave did not rendezvous on cpu");
for_each_online_cpu(c) {
if (c == monarch)
continue;
if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE)
printk(" %d", c);
}
printk("\n");
return;
all_in:
printk(KERN_INFO "All OS MCA slaves have reached rendezvous\n");
return;
} }
/* /*
@ -953,6 +970,10 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
task_t *previous_current; task_t *previous_current;
oops_in_progress = 1; /* FIXME: make printk NMI/MCA/INIT safe */ oops_in_progress = 1; /* FIXME: make printk NMI/MCA/INIT safe */
console_loglevel = 15; /* make sure printks make it to console */
printk(KERN_INFO "Entered OS MCA handler. PSP=%lx cpu=%d monarch=%ld\n",
sos->proc_state_param, cpu, sos->monarch);
previous_current = ia64_mca_modify_original_stack(regs, sw, sos, "MCA"); previous_current = ia64_mca_modify_original_stack(regs, sw, sos, "MCA");
monarch_cpu = cpu; monarch_cpu = cpu;
if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, 0, 0, 0) if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, 0, 0, 0)