Help/Support Debugserver cannot --attach

[Anonymonk 1.8k iPad Air 2 8-9-11]

hi everyone,

im trying to debug with lldb, but i cannot attach debugserver to any proccess,

error: failed to attach to process 669: unable to start the exception thread

Exiting.

 

i tried with osx 10.11, windows 10 and i always ends with the same error.

i had to pick up the debuserver inside xcode for ios8.4 because the debugserver provided by DiDa was giving the error: failed to attach to process named: "" (os/kern) invalid task

 

i also tried different process with same result

its set to 6755... 

 

any idea?

 

[xiaov 6.6k iPhone 6 8.3]

1 minute ago, Anonymonk said:

hi everyone,

im trying to debug with lldb, but i cannot attach debugserver to any proccess,

error: failed to attach to process 669: unable to start the exception thread

Exiting.

 

i tried with osx 10.11, windows 10 and i always ends with the same error.

i had to pick up the debuserver inside xcode for ios8.4 because the debugserver provided by DiDa was giving the error: failed to attach to process named: "" (os/kern) invalid task

 

i also tried different process with same result

its set to 6755... 

 

any idea?

 

IOS8 cant use lldb (my opinion)..

i'm using gdb on ios8, lldb on ios9

[Anonymonk 1.8k iPad Air 2 8-9-11]

well.. my gdb also doesn work but i didnt tried through ssh yet

got the osaki error...

[Anonymonk 1.8k iPad Air 2 8-9-11]

just got the first step working with another tuto

Spoiler

Admins-MBA:debug admin$ codesign -s - --entitlements entitlements.plist -f debugserver

debugserver: replacing existing signature

Admins-MBA:debug admin$ scp debugserver [email protected]:/var/root

[email protected]'s password: 

debugserver                                   100%   13MB   3.3MB/s   00:04    

Admins-MBA:debug admin$ ssh [email protected]

[email protected]'s password: 

1:~ root# ./debugserver *:1234 -a 501      

debugserver-@(#)PROGRAM:debugserver  PROJECT:debugserver-320.2.89

 for arm64.

Attaching to process 501...

Listening to port 1234 for a connection from *...

 

 

tuto source is here https://hirschmann.io/remote-ios-debugging/

[Anonymonk 1.8k iPad Air 2 8-9-11]

so... now, im stuck at the next step,

when i run in lldb, process connect connect://172.20.10.6:1234

it just hang there forever.. i have tried with a wrong ip and it does return error.. 

maybe thats just because i ssh over wifi

[i0s_tweak3r 12.3k iPhone X 13.5]

14 hours ago, Anonymonk said:

so... now, im stuck at the next step,

when i run in lldb, process connect connect://172.20.10.6:1234

it just hang there forever.. i have tried with a wrong ip and it does return error.. 

maybe thats just because i ssh over wifi

I believe Windows 10 requires USB port,  and setting up USB tunnel with iFunbox, but as was already said, I'm pretty sure it doesn't work on 8.4 anyway, or is very buggy at best. 

[Anonymonk 1.8k iPad Air 2 8-9-11]

i was doin ssh over wifi in mac.. as i couldnt find an easy way to make a usb tunnel...

but i just tried in windows with ifunbox tunnel .. and i got the same result..

i start to desperate to be abble to find offset in assassin creed unity... because i even tried to set gdb on my iphone running 9.3 and i got the same osabi #$$%## story than with my ipad

[Anonymonk 1.8k iPad Air 2 8-9-11]

ok, i success to find an offset using my iphone 6s ios9.3... but my ipad air 2 ios8.4 doesnt want to work, i can reach segmentation fault 11 ... tryed in safemode but i should have done a reboot before as it was not working.

lldb is quite picky.... doesnt want to attach process when i use the name but agree with pid