able to hijack 1.9?

[rdp]

this hijack attempt fails, either because the process is always stuck in GC, or because it's 1.9.1?

rdp       1880 32308 93 16:41 pts/0    01:46:04 ruby multiple_runs_same_setting_grapher.rb yanc_30mb_3_url_use_bittorrent_atfalse
rdp       7126 23734  0 13:26 pts/6    00:00:07 ruby /home/rdp/go/src/mongrel_dir_handler_current_dir.rb
rdp       9177  9053  0 18:35 pts/5    00:00:00 grep ruby
[27:1835][rdp@ilab1:~]$ hijack 1880
=> Hijacking...
=> 1880 doesn't appear to be a Ruby process!

[ileitch]

it may well be 1.9.1 as I haven't tried 1.9 yet. Could you attach the output of the 'bt' command when you attach to the process directly with gdb? Thanks

[pcboy]

Is there anything new related to this issue after two years?

I'm still trying to use hijack on 1.9.3 and it doesn't work.
Same issue. "XXXX doesn't appear to be a Ruby process!"

[ileitch]

Please try 0.2.1.

[e0da]

No luck with hijack 0.2.1 against ruby 1.9.3

[ileitch]

What kind of process are you trying to hijack?

[jfirebaugh]

I'm trying to hijack a sidekiq process on 1.9.3. I got the "XXXX doesn't appear to be a Ruby process" error message, but it was because the process to which I was trying to attach was running as a different user. When I ran sudo hijack, I got "WARNING: Did not detect a safe frame on which to set a breakpoint, hijack may fail." Then it just hangs.

Here's the output from --debug: https://gist.github.com/3361940

[ileitch]

Debug symbols for your Ruby are missing. There's not much hijack can do in this case...

[jfirebaugh]

I installed ubuntu's libruby1.9.1-dbg package. Now it looks like GDB is straight up crashing: https://gist.github.com/3361996

So, I think I'm going to back out of this rabbit hole.