Comments (4)
Hey!
Sorry, I can't help you without any information whatsoever.
Could you please follow the advice from this video?
https://www.youtube.com/watch?v=53zkBvL4ZB4
kind regards :)
from liveoverflow_youtube.
I am running Ubuntu (xenial)
$ uname -a
Linux localhost 3.18.0-17028-g3f022007a1b8 #1 SMP PREEMPT Tue May 29 21:57:58 PDT 2018 x86_64 x86_64 x86_64 GNU/Linux
Also, while following the tutorial, ltrace, doesn't do what yours does.
from liveoverflow_youtube.
never had this issue before. My thinking right now is: gdb and ltrace modify code and inject int3
for breakpoints. And for whatever reason it looks like they didn't do it properly, or loose track of that, or can't catch the signal and then it crashes. For example the crash in gdb is at 0x4005fc
. That's obviously not a valid instruction address from the original code. And it happens because gdb inserted a breakpoint at 0x4005fb
, which destroys the first byte of the instruction. That shouldn't be a problem, but for some reason gdb couldn't handle the SIGTRAP signal and thus couldn't restore the original instruction/state.
So I wonder if there is something preventing regular applications to catch this signal?
Could you please try this on a clean install of this linux image, because I have no clue what you did to your system. If the issue persists with said image, please share which image it is, because then I can reproduce it.
from liveoverflow_youtube.
Okay, thanks.
from liveoverflow_youtube.
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