AttributeError: 'NoneType' object has no attribute 'value'

[yang-datong]

错误在File "~/slabdbg/slabdbg.py", line 495, in

[aftermathdigital]

gef➤ source ~/tools/slabdbg-master/slabdbg.py
Traceback (most recent call last):
File "/home/user/tools/slabdbg-master/slabdbg.py", line 493, in
Slab()
File "/home/user/tools/slabdbg-master/slabdbg.py", line 98, in init
self.memstart_addr = gdb.lookup_global_symbol("memstart_addr").value()
AttributeError: 'NoneType' object has no attribute 'value'
gef➤ info sym memstart_addr
No symbol "memstart_addr" in current context.

Likewise

[fidgetingbits]

what kernel version?

[NeatMonster]

Sorry, I haven't been maintaining this project for a long time now.

You should probably use one of these alternatives instead: libslub, pwndbg, or drgn.

[fidgetingbits]

fwiw I think this likely affects libslub as well (I'm one of the developers), so you can feel free to post a new issue there with the affected kernel version and I'll hopefully get some time to look at it.