Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 4 Apr 2012 07:58:35 +0000
From:      Chris Rees <utisoft@gmail.com>
To:        Julian Elischer <julian@freebsd.org>
Cc:        freebsd-hackers@freebsd.org, hackers@freebsd.org, Yuri <yuri@rawbw.com>
Subject:   Re: Is there any modern alternative to pstack?
Message-ID:  <CADLo83832hFWMRYK4VYtx_0JTXRT8-2tFyUmbSwe%2Bv2n8%2BhTfg@mail.gmail.com>
In-Reply-To: <4F7BDF06.8000104@freebsd.org>
References:  <4F775DF5.1020704@rawbw.com> <201204020831.09253.jhb@freebsd.org> <4F79D63E.7010200@rawbw.com> <201204021312.36568.jhb@freebsd.org> <4F7BDF06.8000104@freebsd.org>

next in thread | previous in thread | raw e-mail | index | archive | help
On 4 Apr 2012 06:41, "Julian Elischer" <julian@freebsd.org> wrote:
>
> On 4/2/12 10:12 AM, John Baldwin wrote:
>>
>> On Monday, April 02, 2012 12:39:26 pm Yuri wrote:
>>>
>>> On 04/02/2012 05:31, John Baldwin wrote:
>>>>
>>>> Hmm, I don't know if the port has it, but I did some work on pstack a
while
>>>> ago to make it work with libthread_db so it at least handles i386 ok.
 It
>>>> needs to be modified to use something like libunwind though or some
other
>>>> unwinder.  And possibly it should use libelf instead of its own
ELF-parsing
>>>> code.
>>>
>>> I see pstack -1.2_1 failing even on i386:
>>>
>>> pstack: cannot read context for thread 0x1879f
>>> pstack: failed to read more threads
>>
>> Yes, threads don't work for modern binaries (newer than 4.x) without my
changes
>> to make it use libthread_db.  You can find the patch I used for this at
>> http://www.freebsd.org/~jhb/patches/pstack_threads.patch
>
>
> should be in ports?
>
>

I'm on it.

Chris



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CADLo83832hFWMRYK4VYtx_0JTXRT8-2tFyUmbSwe%2Bv2n8%2BhTfg>