From: Keith Owens <kaos@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: [PATCH 2.6.16-rc2 1/3] MCA: print messages in MCA handler
Date: Wed, 08 Feb 2006 02:40:59 +0000 [thread overview]
Message-ID: <20060208024059.9264.4992.sendpatchset@kao2.melbourne.sgi.com> (raw)
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>
---
mca.c | 25 +++++++++++++++++++++++--
1 files changed, 23 insertions(+), 2 deletions(-)
Index: linux/arch/ia64/kernel/mca.c
=================================--- linux.orig/arch/ia64/kernel/mca.c 2006-02-08 11:41:55.494263795 +1100
+++ linux/arch/ia64/kernel/mca.c 2006-02-08 12:10:03.619783349 +1100
@@ -908,7 +908,7 @@ no_mod:
static void
ia64_wait_for_slaves(int monarch)
{
- int c, wait = 0;
+ int c, wait = 0, missing = 0;
for_each_online_cpu(c) {
if (c = monarch)
continue;
@@ -919,15 +919,32 @@ ia64_wait_for_slaves(int monarch)
}
}
if (!wait)
- return;
+ goto all_in;
for_each_online_cpu(c) {
if (c = monarch)
continue;
if (ia64_mc_info.imi_rendez_checkin[c] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE) {
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;
}
}
+ 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, s
task_t *previous_current;
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");
monarch_cpu = cpu;
if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, 0, 0, 0)
reply other threads:[~2006-02-08 2:40 UTC|newest]
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