On Fri, 21 Dec 2007 17:18:52 -0500
David Dillow <[email protected]> wrote:
>
> On Fri, 2007-12-21 at 16:52 -0500, David Dillow wrote:
> > I'm getting the following oops when doing the following commands:
> >
> > modprobe ib_srp
> > <add targets(s) to ib_srp using sysfs>
> > rmmod ib_srp
> > modprobe ib_srp
> > <OOPS>
> >
> > I'm going to try and track down how the list is getting corrupted; it
> > looks like attribute_container_list in
> > drivers/base/attribute_container.c is the one getting corrupted.
>
> Ok, found the culprit, now to figure out the motive and fix it.
>
> ib_srp's srp_cleanup_module calls srp_release_transport(), which calls
> transport_container_unregister() for the rport_attr_cont member of
> struct srp_internal.
>
> That last unregister call is returning -EBUSY, but it gets ignored, and
> the list node gets erased (or just reused) when the module's text/memory
> is free'd.
transport_container_unregister(&i->rport_attr_cont) should not fail here.
It fails because there is still a srp rport.
I think that as Pete pointed out, srp_remove_one needs to call
srp_remove_host.
Can you try this?
Thanks,
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 950228f..bdb6f85 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2053,6 +2053,7 @@ static void srp_remove_one(struct ib_device *device)
list_for_each_entry_safe(target, tmp_target,
&host->target_list, list) {
+ srp_remove_host(target->scsi_host);
scsi_remove_host(target->scsi_host);
srp_disconnect_target(target);
ib_destroy_cm_id(target->cm_id);
--
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