有时dump_stack()会在函数名称中添加后缀“.cold”和“.part”，例如，这里是[1]中的部分行，
[ 638.115912][ C0] Call Trace:
[ 638.115986][ C0] ? kasan_set_free_info+0x1b/0x30
[ 638.115990][ C0] ? __kasan_slab_free+0xd8/0x120
[ 638.115995][ C0] ? kmem_cache_free.part.0+0x67/0x1f0
[ 638.115999][ C0] ? __put_cred+0x1de/0x250
[ 638.116004][ C0] ? revert_creds+0x1a8/0x1f0
[ 638.116008][ C0] ? do_faccessat+0x2ca/0x820
[ 638.116013][ C0] ? do_syscall_64+0x2d/0x70
[ 638.116017][ C0] ? find_held_lock+0x2d/0x110
[ 638.116022][ C0] ? lock_acquire+0x1f1/0xad0
[ 638.116027][ C0] ? debug_check_no_obj_freed+0xc7/0x41c
[ 638.116031][ C0] ? find_held_lock+0x2d/0x110
[ 638.116036][ C0] ? debug_check_no_obj_freed+0x20c/0x41c
[ 638.116041][ C0] ? lock_downgrade+0x830/0x830
[ 638.116045][ C0] ? lockdep_hardirqs_off+0x89/0xc0
[ 638.116050][ …kernel ×1