analyse core file using pmap and pstack Post: 302429259

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Operating Systems Solaris analyse core file using pmap and pstack Post 302429259 by KiranBangalore on Monday 14th of June 2010 12:20:01 AM

06-14-2010

Registered User

Thanks for the reply.
They have given core file and binary + so files.

By using dbx I got the following output.

Code:

(dbx) threads
       t@74  a l@74   ?()   LWP suspended in  __pollsys()
     t@75  a l@75   ?()   LWP suspended in  __pollsys()
o   t@145  a l@145   NdbThread_set_shm_sigmask()   signal SIGABRT in  __lwp_kill()
    t@152  a l@152   ?()   sleep on 0xae3b88  in  __lwp_park()



(dbx) thread t@145
t@145 (l@145) stopped in __lwp_kill at 0xfeb4c5f8
0xfeb4c5f8: __lwp_kill+0x0008:  bcc,a,pt  %icc,__lwp_kill+0x18  ! 0xfeb4c608
(dbx) where
current thread: t@145
=>[1] __lwp_kill(0x0, 0x6, 0xf87a4444, 0xeeb60, 0xfebb33d8, 0x0), at 0xfeb4c5f8
  [2] raise(0x6, 0x0, 0xfebb5258, 0xfed30b00, 0xffffffff, 0x6), at 0xfeae5a5c
  [3] abort(0x0, 0x1, 0xf87a4444, 0xeeb60, 0xfebb33d8, 0x0), at 0xfeac194c
  [4] free(0x129a030, 0x129b2d0, 0x0, 0x40, 0x1, 0x40000000), at 0xfed30b00
  [5] NdbThread_Destroy(0xcfe080, 0xfda97e6c, 0xdcec, 0xdcec, 0xdcec, 0xdcec), at 0xf87a4444
  [6] TransporterRegistry::stop_clients(0xcfe068, 0x1, 0x1109d7c, 0xffffffff, 0x1, 0x1109d6c), at 0xf87dac70
  [7] TransporterFacade::threadMainSend(0x10fc078, 0x1, 0xdcec, 0xdcec, 0xdcec, 0xdcec), at 0xf87b5e00
  [8] runSendRequest_C(0x10fc078, 0xfda97f90, 0x0, 0xfc6bfa00, 0xfebb03a8, 0x1), at 0xf87b5d08
  [9] 0xf87a4260(0xcfe680, 0x0, 0x0, 0x0, 0xf87b5d04, 0x1), at 0xf87a4260
(dbx)

I think was it using some third party libraries. How to find the function calls, return value etc.

KiranBangalore

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pstack

pstack(1)						      General Commands Manual							 pstack(1)

NAME

       pstack - print a stack trace for each LWP in each process and core file

SYNOPSIS


DESCRIPTION

       prints a stack trace (hex+symbolic) for each LWP (Lightweight Process) in each process and core file.

       Given  the  pid of a running process or the full path of a core file, prints the stack trace for each LWP thread in the process.  To obtain
       symbol information, searches load modules (executable and shared libraries) in the current directory, and You can  specify  the	executable
       path  with the pid/corepath, separated by a colon character.  If cannot find a load module, symbol information for frames in that module is
       not displayed.

       works by attaching to the running process and reading its registers, memory, and stack.	 Mismatch  between  executable	and  corefile  may
       result in unpredictable behavior.

   Options
       supports the following option:

	      Prints the usage menu.

   Operand
       supports the following operand:
	      pid identifies a running process, with an optional execpath, the full executable path.

		     corepath is the full path name of the specified executable.

RETURN VALUES

       returns the following values:

	      Successful completion.
	      Failure.
		      An error has occurred.

SEE ALSO

       ldd(1), pldd(1).

Itanium(R)-based Systems Only														 pstack(1)

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