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Diffstat (limited to 'arch/x86/kernel/cpu')
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index d2c611699cd9..323e02c658af 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -311,7 +311,7 @@ static void wait_for_panic(void)
panic("Panicing machine check CPU died");
}
-static void mce_panic(char *msg, struct mce *final, char *exp)
+static void mce_panic(const char *msg, struct mce *final, char *exp)
{
int i, apei_err = 0;
@@ -735,7 +735,7 @@ static atomic_t mce_callin;
/*
* Check if a timeout waiting for other CPUs happened.
*/
-static int mce_timed_out(u64 *t)
+static int mce_timed_out(u64 *t, const char *msg)
{
/*
* The others already did panic for some reason.
@@ -750,8 +750,7 @@ static int mce_timed_out(u64 *t)
goto out;
if ((s64)*t < SPINUNIT) {
if (mca_cfg.tolerant <= 1)
- mce_panic("Timeout synchronizing machine check over CPUs",
- NULL, NULL);
+ mce_panic(msg, NULL, NULL);
cpu_missing = 1;
return 1;
}
@@ -867,7 +866,8 @@ static int mce_start(int *no_way_out)
* Wait for everyone.
*/
while (atomic_read(&mce_callin) != cpus) {
- if (mce_timed_out(&timeout)) {
+ if (mce_timed_out(&timeout,
+ "Timeout: Not all CPUs entered broadcast exception handler")) {
atomic_set(&global_nwo, 0);
return -1;
}
@@ -892,7 +892,8 @@ static int mce_start(int *no_way_out)
* only seen by one CPU before cleared, avoiding duplicates.
*/
while (atomic_read(&mce_executing) < order) {
- if (mce_timed_out(&timeout)) {
+ if (mce_timed_out(&timeout,
+ "Timeout: Subject CPUs unable to finish machine check processing")) {
atomic_set(&global_nwo, 0);
return -1;
}
@@ -936,7 +937,8 @@ static int mce_end(int order)
* loops.
*/
while (atomic_read(&mce_executing) <= cpus) {
- if (mce_timed_out(&timeout))
+ if (mce_timed_out(&timeout,
+ "Timeout: Monarch CPU unable to finish machine check processing"))
goto reset;
ndelay(SPINUNIT);
}
@@ -949,7 +951,8 @@ static int mce_end(int order)
* Subject: Wait for Monarch to finish.
*/
while (atomic_read(&mce_executing) != 0) {
- if (mce_timed_out(&timeout))
+ if (mce_timed_out(&timeout,
+ "Timeout: Monarch CPU did not finish machine check processing"))
goto reset;
ndelay(SPINUNIT);
}