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Re: No output from trace file after a few hours
- From: Arkady <arkady dot miasnikov at gmail dot com>
- To: Daniel Doron <danielmeirdoron at gmail dot com>
- Cc: systemtap at sourceware dot org
- Date: Thu, 15 Jun 2017 11:18:07 +0300
- Subject: Re: No output from trace file after a few hours
- Authentication-results: sourceware.org; auth=none
- References: <CAFwN=+ywma7CvB6AajmEb99LKZkTg9fWP724to6r=FrKrB0stQ@mail.gmail.com> <CANA-60qKnB_x4UuPfej_H2ebkHNXepmqpE+dgnOT=kOV6MYbqw@mail.gmail.com> <CANA-60oP_i=0oCQ1e73B_96juT1gW10d2Q7yps_r-jPyo=AJKQ@mail.gmail.com> <CAFwN=+xs21q38vf_ZNN-QAr5-EOfSkoKUx-e3u8PaZ=GKOkkdA@mail.gmail.com> <CAFwN=+yn+TGsHKNmoCJBaqeJakRG=XS8uVGbN8a16a0z3UdXmQ@mail.gmail.com> <CAFwN=+xMd=iXUw79A0WkpjHY1Vii3tFzWh4=5vS7f9qdtfdSAQ@mail.gmail.com> <CAFwN=+x34nb0ZYBW1wYB=-4m-Ctyrd-tkT4wXS0bcDTdBNaOtg@mail.gmail.com>
How long time it runs for you?
On Thu, Jun 15, 2017 at 10:38 AM, Daniel Doron
<danielmeirdoron@gmail.com> wrote:
> Systemtap translator/driver (version 2.9/0.164, rpm 2.9-7.el6)
> Copyright (C) 2005-2015 Red Hat, Inc. and others
> This is free software; see the source for copying conditions.
> enabled features: AVAHI LIBRPM LIBSQLITE3 NLS NSS TR1_UNORDERED_MAP
>
> On Thu, Jun 15, 2017 at 10:37 AM, Daniel Doron
> <danielmeirdoron@gmail.com> wrote:
>> BTW kernel version: 2.6.32-431.el6.x86_64
>>
>> On Thu, Jun 15, 2017 at 10:36 AM, Daniel Doron
>> <danielmeirdoron@gmail.com> wrote:
>>> if you mean that the kernel version does not get upgraded, then yes.
>>>
>>> On Thu, Jun 15, 2017 at 10:34 AM, Daniel Doron
>>> <danielmeirdoron@gmail.com> wrote:
>>>> Sorry, I do not know what you mean by that...
>>>>
>>>> On Thu, Jun 15, 2017 at 10:32 AM, Arkady <arkady.miasnikov@gmail.com> wrote:
>>>>> Do you have the kernel version pinned?
>>>>>
>>>>> On Thu, Jun 15, 2017 at 10:12 AM, Arkady <arkady.miasnikov@gmail.com> wrote:
>>>>>> Please send the stap script
>>>>>>
>>>>>> On Thu, Jun 15, 2017 at 10:10 AM, Daniel Doron
>>>>>> <danielmeirdoron@gmail.com> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> I built my module to probe a few system calls and functions. Nothing
>>>>>>> fancy, no big work in it, just prints some data. Then I wrote a simple
>>>>>>> python script to read data directly off the
>>>>>>> /sys/kernel/debug/systemtap/mymodule/trace0 file (of course running as
>>>>>>> sudo)
>>>>>>> I run stap in Flight recorder mode.
>>>>>>> After a few hours (varies from 8 to 20) I stop getting any output from
>>>>>>> the module...
>>>>>>> Any idea how to check why that is?
>>>>>>> dmesg does not report anything unusual...
>>>>>>>
>>>>>>> Thanks.
>>>>>>> Daniel.