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Subject[PATCH] mm, memory-failure: clarify error message
Date
Some user who install SIGBUS handler that does longjmp out
therefore keeping the process alive is confused by the error
message
"[188988.765862] Memory failure: 0x1840200: Killing
cellsrv:33395 due to hardware memory corruption"
Slightly modify the error message to improve clarity.

Signed-off-by: Jane Chu <jane.chu@oracle.com>
---
mm/memory-failure.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index fc8b517..14de5e2 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -216,10 +216,9 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
short addr_lsb = tk->size_shift;
int ret;

- pr_err("Memory failure: %#lx: Killing %s:%d due to hardware memory corruption\n",
- pfn, t->comm, t->pid);
-
if ((flags & MF_ACTION_REQUIRED) && t->mm == current->mm) {
+ pr_err("Memory failure: %#lx: Killing %s:%d due to hardware memory "
+ "corruption\n", pfn, t->comm, t->pid);
ret = force_sig_mceerr(BUS_MCEERR_AR, (void __user *)tk->addr,
addr_lsb, current);
} else {
@@ -229,6 +228,8 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
* This could cause a loop when the user sets SIGBUS
* to SIG_IGN, but hopefully no one will do that?
*/
+ pr_err("Memory failure: %#lx: Sending SIGBUS to %s:%d due to hardware "
+ "memory corruption\n", pfn, t->comm, t->pid);
ret = send_sig_mceerr(BUS_MCEERR_AO, (void __user *)tk->addr,
addr_lsb, t); /* synchronous? */
}
--
1.8.3.1
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