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If run_interrupt_driven_config_hooks() waits 360 seconds and INVARIANTS

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is compiled into the kernel, then panic.

MFC after:	3 days
Discussed with:	scottl
This commit is contained in:
Robert Watson 2008-07-21 20:50:49 +00:00
parent 860c4e582a
commit 828e07694c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=180673
1 changed files with 15 additions and 10 deletions
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25
sys/kern/subr_autoconf.c
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@ -73,16 +73,21 @@ run_interrupt_driven_config_hooks_warning(int warned)
char namebuf[64];
long offset;
printf("run_interrupt_driven_hooks: still waiting after %d seconds "
"for", warned * WARNING_INTERVAL_SECS);
TAILQ_FOREACH(hook_entry, &intr_config_hook_list, ich_links) {
if (linker_search_symbol_name((caddr_t)hook_entry->ich_func,
namebuf, sizeof(namebuf), &offset) == 0)
printf(" %s", namebuf);
else
printf(" %p", hook_entry->ich_func);
if (warned < 6) {
printf("run_interrupt_driven_hooks: still waiting after %d "
"seconds for", warned * WARNING_INTERVAL_SECS);
TAILQ_FOREACH(hook_entry, &intr_config_hook_list, ich_links) {
if (linker_search_symbol_name(
(caddr_t)hook_entry->ich_func, namebuf,
sizeof(namebuf), &offset) == 0)
printf(" %s", namebuf);
else
printf(" %p", hook_entry->ich_func);
}
printf("\n");
}
printf("\n");
KASSERT(warned < 6,
("run_interrupt_driven_config_hooks: waited too long"));
}
static void
@ -104,7 +109,7 @@ run_interrupt_driven_config_hooks(dummy)
while (!TAILQ_EMPTY(&intr_config_hook_list)) {
if (msleep(&intr_config_hook_list, &intr_config_hook_lock,
PCONFIG, "conifhk", WARNING_INTERVAL_SECS * hz) ==
EWOULDBLOCK && warned < 5) {
EWOULDBLOCK) {
mtx_unlock(&intr_config_hook_lock);
warned++;
run_interrupt_driven_config_hooks_warning(warned);