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| Rev 3386 | Rev 4153 | ||
|---|---|---|---|
| Line 74... | Line 74... | ||
| 74 | */ |
74 | */ |
| 75 | #ifdef CONFIG_DEBUG_SPINLOCK |
75 | #ifdef CONFIG_DEBUG_SPINLOCK |
| 76 | void spinlock_lock_debug(spinlock_t *sl) |
76 | void spinlock_lock_debug(spinlock_t *sl) |
| 77 | { |
77 | { |
| 78 | count_t i = 0; |
78 | count_t i = 0; |
| 79 | char *symbol; |
- | |
| 80 | bool deadlock_reported = false; |
79 | bool deadlock_reported = false; |
| 81 | 80 | ||
| 82 | preemption_disable(); |
81 | preemption_disable(); |
| 83 | while (test_and_set(&sl->val)) { |
82 | while (test_and_set(&sl->val)) { |
| 84 | 83 | ||
| Line 104... | Line 103... | ||
| 104 | #ifdef CONFIG_FB |
103 | #ifdef CONFIG_FB |
| 105 | if (sl == &fb_lock) |
104 | if (sl == &fb_lock) |
| 106 | continue; |
105 | continue; |
| 107 | #endif |
106 | #endif |
| 108 | if (i++ > DEADLOCK_THRESHOLD) { |
107 | if (i++ > DEADLOCK_THRESHOLD) { |
| 109 | printf("cpu%u: looping on spinlock %" PRIp ":%s, caller=%" PRIp, |
108 | printf("cpu%u: looping on spinlock %" PRIp ":%s, " |
| 110 | CPU->id, sl, sl->name, CALLER); |
109 | "caller=%" PRIp "(%s)", CPU->id, sl, sl->name, |
| 111 | symbol = get_symtab_entry(CALLER); |
110 | CALLER, symtab_fmt_name_lookup(CALLER)); |
| 112 | if (symbol) |
111 | |
| 113 | printf("(%s)", symbol); |
- | |
| 114 | printf("\n"); |
- | |
| 115 | i = 0; |
112 | i = 0; |
| 116 | deadlock_reported = true; |
113 | deadlock_reported = true; |
| 117 | } |
114 | } |
| 118 | } |
115 | } |
| 119 | 116 | ||