From: Michael Ellerman <mpe@ellerman.id.au>
To: linuxppc-dev@ozlabs.org
Cc: npiggin@gmail.com
Subject: [PATCH 1/3] powerpc/watchdog: Tweak watchdog printks
Date: Thu, 12 Oct 2017 15:44:32 +1100 [thread overview]
Message-ID: <1507783474-28210-1-git-send-email-mpe@ellerman.id.au> (raw)
Use pr_fmt() in the watchdog code, so we don't have to say "Watchdog"
so many times.
Rather than "CPU:%d" just spell it "CPU %d", "Hard" doesn't need a
capital in the middle of a sentence, and "LOCKUP other CPUS" should be
"LOCKUP on other CPUS".
Also make it clear when a CPU self detects a lockup by spelling it
out.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/kernel/watchdog.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
index 15e209a37c2d..937cb92374c7 100644
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@@ -5,6 +5,9 @@
*
* This uses code from arch/sparc/kernel/nmi.c and kernel/watchdog.c
*/
+
+#define pr_fmt(fmt) "watchdog: " fmt
+
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
@@ -89,7 +92,7 @@ static inline void wd_smp_unlock(unsigned long *flags)
static void wd_lockup_ipi(struct pt_regs *regs)
{
- pr_emerg("Watchdog CPU:%d Hard LOCKUP\n", raw_smp_processor_id());
+ pr_emerg("CPU %d Hard LOCKUP\n", raw_smp_processor_id());
print_modules();
print_irqtrace_events(current);
if (regs)
@@ -130,8 +133,8 @@ static void watchdog_smp_panic(int cpu, u64 tb)
if (cpumask_weight(&wd_smp_cpus_pending) == 0)
goto out;
- pr_emerg("Watchdog CPU:%d detected Hard LOCKUP other CPUS:%*pbl\n",
- cpu, cpumask_pr_args(&wd_smp_cpus_pending));
+ pr_emerg("CPU %d detected hard LOCKUP on other CPUs %*pbl\n",
+ cpu, cpumask_pr_args(&wd_smp_cpus_pending));
if (!sysctl_hardlockup_all_cpu_backtrace) {
/*
@@ -174,7 +177,7 @@ static void wd_smp_clear_cpu_pending(int cpu, u64 tb)
if (unlikely(cpumask_test_cpu(cpu, &wd_smp_cpus_stuck))) {
unsigned long flags;
- pr_emerg("Watchdog CPU:%d became unstuck\n", cpu);
+ pr_emerg("CPU %d became unstuck\n", cpu);
wd_smp_lock(&flags);
cpumask_clear_cpu(cpu, &wd_smp_cpus_stuck);
wd_smp_unlock(&flags);
@@ -232,7 +235,7 @@ void soft_nmi_interrupt(struct pt_regs *regs)
}
set_cpu_stuck(cpu, tb);
- pr_emerg("Watchdog CPU:%d Hard LOCKUP\n", cpu);
+ pr_emerg("CPU %d self-detected hard LOCKUP\n", cpu);
print_modules();
print_irqtrace_events(current);
if (regs)
@@ -388,7 +391,7 @@ int __init watchdog_nmi_probe(void)
"powerpc/watchdog:online",
start_wd_on_cpu, stop_wd_on_cpu);
if (err < 0) {
- pr_warn("Watchdog could not be initialized");
+ pr_warn("could not be initialized");
return err;
}
return 0;
--
2.7.4
next reply other threads:[~2017-10-12 4:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-12 4:44 Michael Ellerman [this message]
2017-10-12 4:44 ` [PATCH 2/3] powerpc/watchdog: regs can't be null in soft_nmi_interrupt() Michael Ellerman
2017-10-12 4:44 ` [PATCH 3/3] powerpc/watchdog: Print the NIP " Michael Ellerman
2017-10-12 8:18 ` Nicholas Piggin
2017-10-12 12:01 ` Michael Ellerman
2018-01-29 4:13 ` [1/3] powerpc/watchdog: Tweak watchdog printks Michael Ellerman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1507783474-28210-1-git-send-email-mpe@ellerman.id.au \
--to=mpe@ellerman.id.au \
--cc=linuxppc-dev@ozlabs.org \
--cc=npiggin@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).