0xffffffffc1131d1d in ?? () Cannot find bounds of current function
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searchstar2021-01-23 00:38:06
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其实并不是崩了，只是gdb找不到目前在哪一行而已。为了验证，输入l命令打印附近的代码
(gdb) n Cannot find bounds of current function (gdb) l 221 unsigned long i; 222 int ret = 0; 223 224 while (a * 5 < (1 << max_bits_a)) { 225 a = a * 5; 226 ++thread_num; 227 } 228 thread_num = 1UL << floor_log_2(thread_num); 229 thread_num = NOVA_MIN(thread_num, sbi->cpus); 230 printk("Init blockmap using %lu threads\n", thread_num); (gdb) n Cannot find bounds of current function (gdb) l 231 data = kmalloc(thread_num * sizeof(struct do_init_blockmap_data), GFP_KERNEL); 232 if (data == NULL) { 233 ret = -ENOMEM; 234 goto out; 235 } 236 tasks = kzalloc(thread_num * sizeof(struct task_struct *), GFP_KERNEL); 237 if (tasks == NULL) { 238 ret = -ENOMEM; 239 goto out; 240 }