Sorry, there was actually a typo in that diff, although it was good enough to be a solution on my system.
A webrev also: http://cr.openjdk.java.net/~kevinw/7003789/webrev.00/ Thanks Kevin On 01/12/2010 16:01, Kevin Walls wrote: > Hi -- > > I've just been hitting that as well.... I think it needs to be dealt > with as a separate bug as there may be a few which are similar - and > 6359295 is marked fixed in 5.0 long ago... > > I just found your message after I'd done some investigating... The patch > I was working with is to split one of the existing "if defined" > statements, as currently the bug is: if we have PT_GETREGS defined, we > use PTRACE_GETREGS to define PTRACE_GETREGS_REQ... We soon realise that > may NOT be defined and give the "unsupported" message. So I can log and > bug and get this done if it sounds good: > > [ke...@oldbox make]$ hg diff ../src/os/linux/ps_proc.c > diff --git a/agent/src/os/linux/ps_proc.c b/agent/src/os/linux/ps_proc.c > --- a/agent/src/os/linux/ps_proc.c > +++ b/agent/src/os/linux/ps_proc.c > @@ -124,9 +124,9 @@ > #ifdef _LP64 > #ifdef PTRACE_GETREGS64 > #define PTRACE_GETREGS_REQ PTRACE_GETREGS64 > -#endif > -#else > -#if defined(PTRACE_GETREGS) || defined(PT_GETREGS) > +#elif defined(PTRACE_GETREGS) > +#define PTRACE_GETREGS_REQ PTRACE_GETREGS > +#elif defined (PT_GETREGS) > #define PTRACE_GETREGS_REQ PTRACE_GETREGS > #endif > #endif /* _LP64 */ > > > > Regards > Kevin > > > > On 15/11/2010 06:46, Yasumasa Suenaga wrote: >> Hi. >> >> I and co-worker use jstack for various trouble shooting. >> >> We mainly use Java on Linux with AMD64 architecture. >> However, jstack -F option doesn't work our platform. >> >> I ran jstack -F with LIBSAPROC_DEBUG=1 (environment variable), >> I got following messages: >> >> >> /***************/ >> Thread 31933: (state = BLOCKED) >> libsaproc DEBUG: ptrace(PTRACE_GETREGS, ...) not supported >> Error occurred during stack walking: >> sun.jvm.hotspot.debugger.DebuggerException: >> sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp >> /***************/ >> >> >> In order to fix this problem, I made a patch for preprocessor >> macro in "agent/src/os/linux/ps_proc.c" . >> The patch that attached this mail works well on Fedora 13 x86_64. >> >> Please merge this patch if you don't fix this problem yet. >> >> >> Best regards. >> >>
