Re: Doubt about sensors

Actually i have gkrelmms but the freeze happens even when im not running it.
And its really almost 2 seconds.
Im using mbmon solution. Thanks.

On 4/24/06, Bill WIlson <[email protected]> wrote:
>
> On Mon, 24 Apr 2006 18:42:42 -0300
> "Salatiel Filho" <[email protected]> wrote:
>
> > I'm having a problem.
> > I have an ASUS A7N8X-E DELUXE that uses ASB100 sensor module.
> > But all the time i try to  use gkrellm sensors, when it updates values
> > gkrellm locks for about 2 seconds. This is really annoying
> > cause all panels freezes.
> > Any help ?
>
> Oh wow, you got a good one!  It so happens that up until a while back
> I had been using that same motherboard on a firewall box.  But I had
> never noticed any problem like that, so I pulled the machine out and
> poked around a bit.  Sure enough, I reproduced your problem (only with
> a shorter less than a second delay) but only when the gkrelmms plugin
> was running.  Are you running that?
>
> Anyway, assuming you are using the gkrellmms plugin (and if not I'll bet
> there's another plugin you are using that is doing something similar)
> here's what's up:
>
> Gkrellm collects sensor data in a thread just so that slow reading of
> sensors won't cause gkrellm freezes (and yes, the ASB100 is one of
> those slow chips).
>
> I ran in gdb and got a stacktrace while gkrellm was in a frozen state:
>
> Program received signal SIGINT, Interrupt.
> 0xb793094b in __nptl_setxid () from /lib/tls/libpthread.so.0
> (gdb) bt
> #0  0xb793094b in __nptl_setxid () from /lib/tls/libpthread.so.0
> #1  0xb78870cc in setuid () from /lib/tls/libc.so.6
> #2  0xb74128ae in xmms_connect_to_session () from /usr/lib/libxmms.so.1
> #3  0xb7412b4d in xmms_connect_to_session () from /usr/lib/libxmms.so.1
> #4  0xb75c9fda in update_playlist () from /ram/gkrellmms.so
> #5  0xb75c4b98 in update_gkrellmms () from /ram/gkrellmms.so
> #6  0x0805a5ff in update_monitors ()
> #7  0xb798df16 in g_main_context_is_owner () from /usr/lib/libglib-
> 2.0.so.0
> #8  0xb798c11c in g_main_context_dispatch () from /usr/lib/libglib-
> 2.0.so.0
> #9  0xb798f5ab in g_main_context_check () from /usr/lib/libglib-2.0.so.0
> #10 0xb798f907 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
> #11 0xb7def2a1 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
> #12 0x0805cd8f in main ()
>
> So the freeze is when the gkrellmms plugin calls libxmms functions that
> call xmms_connect_to_session(), which in turn calls setuid which in
> turn calls the libc6 __nptl_setxid().  Now here's the problem,
> __nptl_setxid()
> walks though the list of threads (gkrellm's threads) so that each thread
> can be
> sent a SIGSETXID signal so all threads can notice a setuid is being done.
> But gkrellm's sensor reading thread is slow for the ASB100, so that thread
> hangs for a bit.  Then, the main gkrellm thread also hangs when the
> libxmms
> functions try to do a setuid() which hangs on the child sensor reading
> thread.
>
> I don't think this is something that can be fixed in gkrellm (it's
> extremely unlikely
> the gkrellmms plugin would be changed to a threaded interface to libxmms
> and
> probably a waste of time to look into why libxmms needs to setuid at every
> call),
> so the only workaround I can think of is for you to not directly access
> the
> ASB100 sensor data.  Instead I suggest you install mbmon201 from:
>
>     http://www.nt.phys.kyushu-u.ac.jp/shimizu/download/download.html
>
> Then you can configure the gkrellm sensor monitor to read mbmon data
> which is collected in a separate process and so won't have the freeze
> issue.
> Mbmon is installed on my A7N8X-E DELUXE and when I enabled
> reading the mbmon data and disabled all the temp, fan, and voltage
> ASB100 sensors, the problem went away.
>
> Bill
>
>
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>



--
[]'s
Salatiel

"O maior prazer do inteligente é bancar o  idiota
   diante de um  idiota que banca o inteligente".

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