Luca Scamoni wrote:

Howard Chu ha scritto:

...

In frame 1 print *ap

p *ap $1 = {a_desc = 0x0, a_vals = 0x0, a_nvals = 0x0, a_numvals = 0, a_flags = 0, a_next = 0x54149adc}

Your frame 1 is pretty much impossible - you have oldattrs == newattrs, but in frame 2 the attr list was replaced by a duplicate (using attrs_dup, modify.c:94). Perhaps you've got a compiler bug.