Corey Minyard wrote:
martin rogers wrote:
Corey Minyard wrote:
I don't know of any leak. Those things are counted and checked at
module unload time. If you unload the ipmi_msghandler module, it should
give you some idea if there's a leak.
-Corey
No such luck -it prints nothing.
Lots of memory free after unloading though...
Maybe you are sending lots of messages and not receiving the responses
and not closing the fd? Maybe killing a process frees the memory? There
are no limits on the receive queue, but the queues will be cleaned up
when you close fds.
No fds- this is all in kernel space. My kernel module is calling the
OpenIPMI
kernel module's ipmi_smi_msg_received() function.
I'm not worried about ipmi_msghandler freeing pointers, passed to it by
ipmi_smi_msg_received(), when it's unloaded; I'm wondering what frees
this
memory during normal opreation.
Where do msgs go that are passed in by ipmi_smi_msg_received() ?
The upper layer handling should free the message. For instance, in
ipmi_devintf (the user interface), the receive handler throws it into a
queue and ioctl that reads the message will pull it from the queue free
it (look for ipmi_free_recv_msg).
Sounds like what I suspect- no user space program is doing the necessary
accesses
into OpenIPMI userspace library to free the msgs.
I just wish I knew of one I could use to test my theory, because
hpiel/hpigetevents
don't seem to affect memory usage.
Martin
-Corey
Martin Rogers
martin rogers wrote:
All,
I have a kernel module that is calling into OpenIPMI, and memory is
being consumed (kmalloc'd) without being freed.
I'm wondering what API, if any, might be involved in freeing the memory
being allocated.
Without going into too much detail, we do:
struct ipmi_smi_msg smiMsg = ipmi_alloc_smi_msg();
.. fill in some stuff in smiMsg...
ipmi_smi_msg_received(smi_intf, smiMsg);
where smi_intf was gotten from ipmi_register_smi(...).
The only user space programs we're running are hpiel/hpigetevents, and
these
don't seem to free the memory allocated by ipmi_alloc_smi_msg().
Is there a userspace API that consumes the memory kmalloc'd by
ipmi_alloc_smi_msg/ipmi_smi_msg_received ?
I don't know what ipmi_smi_msg_received does, so I'm lost..
Thanks in advance for any help or pointers...
Using OpenIpmi 1.3.18, kernel 2.6.10.
Martin Rogers
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