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- As with stray vector interrupts limit the reporting of stray level

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interrupts. Bringup on additional machine models repeatedly reveals
  firmware that enables interrupts behind our back, causing the console
  to be flooded otherwise.
- As with the regular interrupt counters using uint16_t instead of
  u_long for counting the stray vector interrupts should be more than
  sufficient.
- Cache the interrupt vector in intr_stray_vector().
This commit is contained in:
marius 2011-06-18 11:27:44 +00:00
parent 44781533ff
commit 3d7e5c6374
1 changed files with 19 additions and 8 deletions
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27
sys/sparc64/sparc64/intr_machdep.c
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@ -83,10 +83,11 @@ CTASSERT((1 << IV_SHIFT) == sizeof(struct intr_vector));
ih_func_t *intr_handlers[PIL_MAX];
uint16_t pil_countp[PIL_MAX];
static uint16_t pil_stray_count[PIL_MAX];
struct intr_vector intr_vectors[IV_MAX];
uint16_t intr_countp[IV_MAX];
static u_long intr_stray_count[IV_MAX];
static uint16_t intr_stray_count[IV_MAX];
static const char *const pil_names[] = {
"stray",
@ -199,22 +200,32 @@ intr_setup(int pri, ih_func_t *ihf, int vec, iv_func_t *ivf, void *iva)
static void
intr_stray_level(struct trapframe *tf)
{
uint64_t level;
printf("stray level interrupt %ld\n", tf->tf_level);
level = tf->tf_level;
if (pil_stray_count[level] < MAX_STRAY_LOG) {
printf("stray level interrupt %ld\n", level);
pil_stray_count[level]++;
if (pil_stray_count[level] >= MAX_STRAY_LOG)
printf("got %d stray level interrupt %ld's: not "
"logging anymore\n", MAX_STRAY_LOG, level);
}
}
static void
intr_stray_vector(void *cookie)
{
struct intr_vector *iv;
u_int vec;
iv = cookie;
if (intr_stray_count[iv->iv_vec] < MAX_STRAY_LOG) {
printf("stray vector interrupt %d\n", iv->iv_vec);
intr_stray_count[iv->iv_vec]++;
if (intr_stray_count[iv->iv_vec] >= MAX_STRAY_LOG)
printf("got %d stray interrupt %d's: not logging "
"anymore\n", MAX_STRAY_LOG, iv->iv_vec);
vec = iv->iv_vec;
if (intr_stray_count[vec] < MAX_STRAY_LOG) {
printf("stray vector interrupt %d\n", vec);
intr_stray_count[vec]++;
if (intr_stray_count[vec] >= MAX_STRAY_LOG)
printf("got %d stray vector interrupt %d's: not "
"logging anymore\n", MAX_STRAY_LOG, vec);
}
}