Mailinglist Archive: opensuse-bugs (10046 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=231209

           Summary: OpenIPMI bug
           Product: openSUSE 10.2
           Version: RC 5
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Kernel
        AssignedTo: kernel-maintainers@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: zvika@xxxxxxxxxxxxxxx
         QAContact: qa@xxxxxxx


I am using the libipmi plugin. The IPMI driver is up and running along with the
openhpid daemon. When I use ipmitool to retrieve the sensors I get all the
sensors (about 28 of them). When I used the openhpi clients (such as hpisensor
etc), the count is 5. After turning on the debugging in the ipmi plugin, here
is what I noticed...

There are 28 entries of Entities ADDED (which matches with what ipmitool
returns). However, there are *ONLY* 5 entries of Entities which are marked
PRESENT. 
During ipmi_discover_resources, events will be sent to the infrastructure queue
for *ONLY* the entities that are marked *PRESENT*. Hence, hpisensor or any of
the hpi clients or even for that matter the apps that use SaHPI apis return
only 5 as these are the only ones that are inserted into the HPI data model.

I started looking at the openIPMI code (mainly entity.c and sensor.c) and
noticed the following:

1) ent_detect_presence is called to detect the presence of the entity
(following the IPMI spec). If neither the  Presence Sensor exists nor the
Presence Bit sensor is set, detect_no_presence_sensor_presence is called to try
and see if the sensors (try_presence_sensors), controls(try_presence_controls)
detect something.

2) In try_presence_sensors, sensor_detect_send is called.

3) sensor_detect_send checks if ignore_if_no_entity bit is set in the sensor
SDR. If this bit is SET, we do not ping the sensor. If the whole point is to
detect the presence of the entity and probing the sensor is required in order
to do that - should we still be checking this BIT ? I removed this check and
now I am able to retrieve all the sensors even with hpisensor client. But, want
to make sure that I am not missing something here...


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