[Crash-utility] Re: Fix irq_stack_size on ARM64

Hi Kuan-ying, After checking my crash code, I found that my vmlinux seems not contained "thread_union" symbols, so it cannot set irq_stack_size correctly. It can set machdep->stacksize correctly, but it set it by this branch in task_init(). | *else if (!VALID_SIZE(thread_union) && !VALID_SIZE(task_union)) { | * len = 0; | * if (kernel_symbol_exists("__start_init_stack") && | * ..... By the way, my kernel version is 5.15.137-android13. Thanks