stan wrote:
Skunk Worx wrote:
Hello,
I asked over on 'users' a few days ago and no help yet. I hope you
don't mind my repeating the question here.
We're a small company using some altera-based boards and our own
driver to control them.
Fedora 7 was working well, but we are getting some unknown symbols
while evaluating an upgrade to F9.
Any help, comments, suggestions are greatly appreciated.
---
John
code and issues :
struct sched_param param = {70};
kernel_cap_t effective, inheritable, permitted, all;
cap_set_full(all); // be sure we have enough permissions to call
// sched_setscheduler.
// probably only need CAP_SYS_NICE, but let's be
// "(un)safe"
// save old permissions
cap_capget(current,&effective, &inheritable, &permitted);
// setup permissions to do this
cap_capset_set(current,&all, &all, &all);
// setup realtime priority
ret=sched_setscheduler(current,SCHED_RR,¶m);
// restore permissions
cap_capset_set(current,&effective, &inheritable, &permitted);
used to be able to do this in f7 / 2.6.23 kernel, now we get:
WARNING: "cap_capset_set" [/usr/CSM/src/ONI/oni_driver/oni.ko] undefined!
WARNING: "cap_capget" [/usr/CSM/src/ONI/oni_driver/oni.ko] undefined!
when building and of course:
oni: Unknown symbol cap_capget
oni: Unknown symbol cap_capset_set
when insmod'ing under f9 / 2.6.25
Now if you are writing drivers you are sophisticated users. I would
think you have already tried these, but just in case.
We write our own driver, there is no "oni.ko" in Fedora...we add it.
Have you looked on Fedora 7 kernel source to see if that module is there
and if it has those symbols. And read what they do.
Yes we are porting up from 2.6.23 which had them exported. They are
still defined in F9 but apparently no longer exported. I think this is
the right terminology.
I don't actually do the driver code, we have a VMS/*NIX system architect
and he requested that I ask Fedora/Redhat if they recognized this issue
or had recommendations.
Do a find from the top of the kernel source hierarchy on Fedora 9 to
see if oni is still there as a module, just a different path.
find /usr/src -iname "oni*"
It's our source code, part of our build, so we know where it is :-)
Do a search for ONI on the web with linux and kernel to see if you find
anything related to the change.
Heh, it might find our source but I doubt it.
The linux kernel lists are archived at gmane.org and you can search them
there. You might find messages as to why this was changed and what
replaced it or where it moved.
We've searched for the POSIX cap_* functions, and from what we can tell
they should be exported, but for some reason no longer appear to be. I
am not sure if this is the right language to explain the problem, but we
can't seem to get to the symbols any more.
Post a message on one of the linux kernel lists, preferably the one
relevant to your hardware, asking about this.
I think it's more the kernel API than the hardware, we had the card made
(actually about 100 of them) and are trying to jump from F7 to F9
(2.6.23 to 2.6.25) but something appears to have changed on the POSIX
API or perhaps we are doing something wrong.
If I don't see any more comments I'll have to migrate over the the
kernel lists, where they will probably ask me to go pester the distro!
Thanks Stan,
John
--
fedora-test-list mailing list
fedora-test-list@xxxxxxxxxx
To unsubscribe:
https://www.redhat.com/mailman/listinfo/fedora-test-list
