[PATCH 1/1] powerpc/eeh: differentiate duplicate detection message

[PATCH 1/1] powerpc/eeh: differentiate duplicate detection message

[Sam Bobroff]

Currently when an EEH error is detected, the system log receives the
same (or almost the same) message twice:

EEH: PHB#0 failure detected, location: N/A
EEH: PHB#0 failure detected, location: N/A
or
EEH: eeh_dev_check_failure: Frozen PHB#0-PE#0 detected
EEH: Frozen PHB#0-PE#0 detected

This looks like a bug, but in fact the messages are from different
functions and mean slightly different things.  So keep both but change
one of the messages slightly, so that it's clear they are different:

EEH: PHB#0 failure detected, location: N/A
EEH: Recovering PHB#0, location: N/A
or
EEH: eeh_dev_check_failure: Frozen PHB#0-PE#0 detected
EEH: Recovering PHB#0-PE#0

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
---
 arch/powerpc/kernel/eeh_driver.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index d9279d0ee9f5..c031be8d41ff 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -897,12 +897,12 @@ void eeh_handle_normal_event(struct eeh_pe *pe)
 
 	/* Log the event */
 	if (pe->type & EEH_PE_PHB) {
-		pr_err("EEH: PHB#%x failure detected, location: %s\n",
+		pr_err("EEH: Recovering PHB#%x, location: %s\n",
 			pe->phb->global_number, eeh_pe_loc_get(pe));
 	} else {
 		struct eeh_pe *phb_pe = eeh_phb_pe_get(pe->phb);
 
-		pr_err("EEH: Frozen PHB#%x-PE#%x detected\n",
+		pr_err("EEH: Recovering PHB#%x-PE#%x\n",
 		       pe->phb->global_number, pe->addr);
 		pr_err("EEH: PE location: %s, PHB location: %s\n",
 		       eeh_pe_loc_get(pe), eeh_pe_loc_get(phb_pe));
-- 
2.22.0.216.g00a2a96fc9

Re: [PATCH 1/1] powerpc/eeh: differentiate duplicate detection message

[Michael Ellerman]

On Thu, 2019-10-17 at 04:59:37 UTC, Sam Bobroff wrote:
> Currently when an EEH error is detected, the system log receives the
> same (or almost the same) message twice:
> 
> EEH: PHB#0 failure detected, location: N/A
> EEH: PHB#0 failure detected, location: N/A
> or
> EEH: eeh_dev_check_failure: Frozen PHB#0-PE#0 detected
> EEH: Frozen PHB#0-PE#0 detected
> 
> This looks like a bug, but in fact the messages are from different
> functions and mean slightly different things.  So keep both but change
> one of the messages slightly, so that it's clear they are different:
> 
> EEH: PHB#0 failure detected, location: N/A
> EEH: Recovering PHB#0, location: N/A
> or
> EEH: eeh_dev_check_failure: Frozen PHB#0-PE#0 detected
> EEH: Recovering PHB#0-PE#0
> 
> Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/de84ffc3ccbeec3678f95a3d898fc188efa0d9c5

cheers