[Libunwind-devel] remote unwinding and process detach?

[Raghavendra Rao Loka]

Hi,

 

 I'm trying to use libunwind to get the stack trace for a different

process (by doing a ptrace(PTRACE_ATTACH...)). And I'm doing

a ptrace(PTRACE_DETACH, ...) to let the "remote" process

continue. It works okay as long everything is normal. But I noticed

in some cases unw_init_remote fails, and  even though I do a

ptrace(PTRACE_DETACH ...) from the remote process, the remote

process still seems stuck.

 

 I'm wondering if I'm using the right approach, or if there is a problem

with my use of libunwind. Any help is appreciated.

 

   - Thanks,

    - Rao.