[Xenomai] Failed testsuite/latency

[Xenomai] Failed testsuite/latency

[Michael Smith]

Hi.
I'm getting an error when trying to run the latency test in Xenomai 3.0.
All the other tests seems fine.

My output:

== Sampling period: 100 us
== Test mode: periodic user-mode task
== All results in microseconds
warming up...
latency: failed to set periodic, code 9

My architechture is Intel iCore 5.
The GIT revision: 52fb91e..
Linux kernel: 3.14.28
The kernel have been built for architecture i686.

Regards
Michael

Re: [Xenomai] Failed testsuite/latency

[Gilles Chanteperdrix]

On Mon, Feb 23, 2015 at 02:30:42PM +0200, Michael Smith wrote:
> Hi.
> I'm getting an error when trying to run the latency test in Xenomai 3.0.
> All the other tests seems fine.
> 
> My output:
> 
> == Sampling period: 100 us
> == Test mode: periodic user-mode task
> == All results in microseconds
> warming up...
> latency: failed to set periodic, code 9
> 
> My architechture is Intel iCore 5.
> The GIT revision: 52fb91e..
> Linux kernel: 3.14.28
> The kernel have been built for architecture i686.

Any error on the kernel console ?

-- 
					    Gilles.

Re: [Xenomai] Failed testsuite/latency

[Michael Smith]

On Mon, Feb 23, 2015 at 2:38 PM, Gilles Chanteperdrix
<gilles.chanteperdrix@xenomai.org> wrote:
> On Mon, Feb 23, 2015 at 02:30:42PM +0200, Michael Smith wrote:
>> Hi.
>> I'm getting an error when trying to run the latency test in Xenomai 3.0.
>> All the other tests seems fine.
>>
>> My output:
>>
>> == Sampling period: 100 us
>> == Test mode: periodic user-mode task
>> == All results in microseconds
>> warming up...
>> latency: failed to set periodic, code 9
>>
>> My architechture is Intel iCore 5.
>> The GIT revision: 52fb91e..
>> Linux kernel: 3.14.28
>> The kernel have been built for architecture i686.
>
> Any error on the kernel console ?
>
> --
>                                             Gilles.

No oddly enough there is no extra error messages with dmesg

Michael

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 02/23/2015 01:30 PM, Michael Smith wrote:
> Hi.
> I'm getting an error when trying to run the latency test in Xenomai 3.0.
> All the other tests seems fine.
> 
> My output:
> 
> == Sampling period: 100 us
> == Test mode: periodic user-mode task
> == All results in microseconds
> warming up...
> latency: failed to set periodic, code 9
> 
> My architechture is Intel iCore 5.
> The GIT revision: 52fb91e..
> Linux kernel: 3.14.28
> The kernel have been built for architecture i686.
> 

The strace output for the failing latency run may help.

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Bart Vissers]

Hi,

I ran into the exact same error. My setup:
- xenomai_3.0rc3
- Linux kernel 3.16.7 with ipipe-core-3.16-x86-2.patch
I only deviated from the default build guide to build debian packages.

Attached, is the kernel config, dmesg log (no errors) and strace output.

Best regards,
Bart
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Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 02/24/2015 02:28 PM, Bart Vissers wrote:
> Hi,
> 
> I ran into the exact same error. My setup:
> - xenomai_3.0rc3
> - Linux kernel 3.16.7 with ipipe-core-3.16-x86-2.patch
> I only deviated from the default build guide to build debian packages.
> 
> Attached, is the kernel config, dmesg log (no errors) and strace output.
> 

I can't reproduce it, so I will need more information.

Could you send the output of the following command on your target?

# xeno-config --info

I would also need a portion of the namelist of the latency binary, e.g.

$ nm $XENOMAI_ROOT/bin/latency | grep __wrap
         U __wrap_clock_gettime
         U __wrap_close
         U __wrap_fclose
         U __wrap_fprintf
         U __wrap_free
         U __wrap_fwrite
         U __wrap_ioctl
         U __wrap_kill
         U __wrap_open
         U __wrap_printf
         U __wrap_pthread_create
         U __wrap_pthread_join
         U __wrap_pthread_setname_np
         U __wrap_puts
         U __wrap_read
         U __wrap_sem_close
         U __wrap_sem_open
         U __wrap_sem_post
         U __wrap_sem_unlink
         U __wrap_sem_wait
         U __wrap_time
         U __wrap_timerfd_create
         U __wrap_timerfd_settime
         U __wrap_write

And finally, could you patch this snippet into the target kernel, then
report any message that might appear in the log once latency has exited
on failure?

diff --git a/kernel/cobalt/rtdm/fd.c b/kernel/cobalt/rtdm/fd.c
index 7f35ea3..a65f6a0 100644
--- a/kernel/cobalt/rtdm/fd.c
+++ b/kernel/cobalt/rtdm/fd.c
@@ -210,6 +210,8 @@ struct rtdm_fd *rtdm_fd_get(int ufd, unsigned int magic)
 	xnlock_get_irqsave(&fdtree_lock, s);
 	fd = fetch_fd(p, ufd);
 	if (fd == NULL || (magic != 0 && fd->magic != magic)) {
+		printk(XENO_WARNING "%s: bad ufd=%d, magic=%#x\n",
+		       __func__, ufd, fd ? fd->magic : 0xfefefefe);
 		fd = ERR_PTR(-EBADF);
 		goto out;
 	}

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Bart Vissers]

Hi Philippe,

Before making any changes, I ran xeno-config --info:
Xenomai version: Xenomai/cobalt v3.0-rc3 --
Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
i686 GNU/Linux
Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
I-pipe release #2 detected
Cobalt core 3.0-rc3 detected
Build args: --prefix=/usr --includedir=/usr/include/xenomai
--mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
--build i486-linux-gnu build_alias=i486-linux-gnu

namelist did not work, as latency does not contain any symbols. How
can I include these when building debian packages?

Unfortunately, I got compilation errors after applying the patch to
xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
function)
So I decided to repeat my steps with the git next branch, 52fb91e...
So, same linux kernel, i-pipe patch and kernel config. Also included
the printk patch. Output:

== Sampling period: 100 us
== Test mode: periodic user-mode task
== All results in microseconds
warming up...
latency: failed to set periodic, code 9
^C---|-----------|-----------|-----------|--------|------|-------------------------
RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26

Notice the ^C. I killed it because it was running indefinitely. This
was also the case in my previous attempts.


Best regards,
Bart

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 02/25/2015 09:33 AM, Bart Vissers wrote:
> Hi Philippe,
> 
> Before making any changes, I ran xeno-config --info:
> Xenomai version: Xenomai/cobalt v3.0-rc3 --
> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
> i686 GNU/Linux
> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
> I-pipe release #2 detected
> Cobalt core 3.0-rc3 detected
> Build args: --prefix=/usr --includedir=/usr/include/xenomai
> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
> --build i486-linux-gnu build_alias=i486-linux-gnu
> 
> namelist did not work, as latency does not contain any symbols. How
> can I include these when building debian packages?

I don't have much knowledge of the Debian pkg system, but the way I used
to do this was:

export DEB_BUILD_OPTIONS="debug nostrip"

before building the package, maybe adding "noopt" if you also want to
disable the optimizer, although this is not required for keeping the
namelist. Gilles certainly has more on this.

This said, at this stage you may want to build the user-space code
manually, leaving aside the debian pkg builder. It would be much easier
to control the build configuration process, at least for me:

http://xenomai.org/installing-xenomai-3-x/#Building_the_x86_libraries_3264bit

> Unfortunately, I got compilation errors after applying the patch to
> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
> function)

Yes, I'm always referring to the current development tip in this discussion.

> So I decided to repeat my steps with the git next branch, 52fb91e...
> So, same linux kernel, i-pipe patch and kernel config. Also included
> the printk patch. Output:
> 
> == Sampling period: 100 us
> == Test mode: periodic user-mode task
> == All results in microseconds
> warming up...
> latency: failed to set periodic, code 9
> ^C---|-----------|-----------|-----------|--------|------|-------------------------
> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
> 
> Notice the ^C. I killed it because it was running indefinitely. This

That is expected, the main thread just hangs paused in this case. If you
don't hit ^C, the real-time core should report two cobalt threads as
follows:

~ # cat /proc/xenomai/sched/threads
CPU  PID    CLASS  TYPE      PRI   TIMEOUT       STAT       NAME
  0  0      idle   core       -1   -             R          [ROOT]
  0  1206   rt     cobalt      0   -             X          latency
  0  1208   rt     cobalt      0   -             W          display-1206

Do you confirm this on your end? If so, then can you look a bit further,
listing the file descriptors currently open for the main thread, e.g. in
my case:

~ # ls -l /proc/1206/fd
total 0
lrwx------    1 root     root            64 Feb 25 09:21 0 -> /dev/pts/0
lrwx------    1 root     root            64 Feb 25 09:21 1 -> /dev/pts/0
lrwx------    1 root     root            64 Feb 25 09:21 2 -> /dev/pts/0
lrwx------    1 root     root            64 Feb 25 09:21 3 ->
anon_inode:[cobalt-timerfd]

I'm interested to know whether you can see the last one.

> was also the case in my previous attempts.
> 

So you received no message visible from dmesg?

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Gilles Chanteperdrix]

On Wed, Feb 25, 2015 at 10:24:30AM +0100, Philippe Gerum wrote:
> On 02/25/2015 09:33 AM, Bart Vissers wrote:
> > Hi Philippe,
> > 
> > Before making any changes, I ran xeno-config --info:
> > Xenomai version: Xenomai/cobalt v3.0-rc3 --
> > Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
> > i686 GNU/Linux
> > Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
> > root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
> > I-pipe release #2 detected
> > Cobalt core 3.0-rc3 detected
> > Build args: --prefix=/usr --includedir=/usr/include/xenomai
> > --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
> > --build i486-linux-gnu build_alias=i486-linux-gnu
> > 
> > namelist did not work, as latency does not contain any symbols. How
> > can I include these when building debian packages?
> 
> I don't have much knowledge of the Debian pkg system, but the way I used
> to do this was:
> 
> export DEB_BUILD_OPTIONS="debug nostrip"
> 
> before building the package, maybe adding "noopt" if you also want to
> disable the optimizer, although this is not required for keeping the
> namelist. Gilles certainly has more on this.

We separate packages on 2.6 with only the debug symbols, named
xenomai-runtime-debg and libxenomai1-dbg, you need to install them
to have the debug symbols. But I do not think you need the debug
symbols to list the dynamic symbols of a binary, the dynamic symbol
tables is not remove by the stripping process. Simply run:

nm -D /path/to/latency


-- 
					    Gilles.

Re: [Xenomai] Failed testsuite/latency

[Michael Smith]

On Wed, Feb 25, 2015 at 11:32 AM, Gilles Chanteperdrix
<gilles.chanteperdrix@xenomai.org> wrote:
> On Wed, Feb 25, 2015 at 10:24:30AM +0100, Philippe Gerum wrote:
>> On 02/25/2015 09:33 AM, Bart Vissers wrote:
>> > Hi Philippe,
>> >
>> > Before making any changes, I ran xeno-config --info:
>> > Xenomai version: Xenomai/cobalt v3.0-rc3 --
>> > Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
>> > i686 GNU/Linux
>> > Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
>> > root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
>> > I-pipe release #2 detected
>> > Cobalt core 3.0-rc3 detected
>> > Build args: --prefix=/usr --includedir=/usr/include/xenomai
>> > --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
>> > --build i486-linux-gnu build_alias=i486-linux-gnu
>> >
>> > namelist did not work, as latency does not contain any symbols. How
>> > can I include these when building debian packages?
>>
>> I don't have much knowledge of the Debian pkg system, but the way I used
>> to do this was:
>>
>> export DEB_BUILD_OPTIONS="debug nostrip"
>>
>> before building the package, maybe adding "noopt" if you also want to
>> disable the optimizer, although this is not required for keeping the
>> namelist. Gilles certainly has more on this.
>
> We separate packages on 2.6 with only the debug symbols, named
> xenomai-runtime-debg and libxenomai1-dbg, you need to install them
> to have the debug symbols. But I do not think you need the debug
> symbols to list the dynamic symbols of a binary, the dynamic symbol
> tables is not remove by the stripping process. Simply run:
>
> nm -D /path/to/latency
>
>
> --
>                                             Gilles.


I just want to confirm my system is also built with Debian packaging
method. I am running Ubuntu 14.04.

Here are the outputs on my system, with:  xeno-config --info

Xenomai version: Xenomai/cobalt v3.0-rc3 --
Linux acs1-marlin 3.14.28-xenomai-3.0-rc3-52fb91e #1 SMP Mon Feb 23
09:56:59 SAST 2015 i686 i686 i686 GNU/Linux
Kernel parameters: BOOT_IMAGE=/vmlinuz-3.14.28-xenomai-3.0-rc3-52fb91e
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
I-pipe release #7 detected
Cobalt core 3.0-rc3 detected
Build args: --prefix=/usr --includedir=/usr/include/xenomai
--mandir=/usr/share/man
--with-testdir=/usr/lib/xenomai/testsuite --build i686-linux-gnu
build_alias=i686-linux-gnu

Then I ran:

sudo nm -D ./latency  | grep __wrap

And got:

         U __wrap_clock_gettime
         U __wrap_close
         U __wrap_fclose
         U __wrap___fprintf_chk
         U __wrap_free
         U __wrap_fwrite
         U __wrap_ioctl
         U __wrap_kill
         U __wrap_open
         U __wrap___printf_chk
         U __wrap_pthread_create
         U __wrap_pthread_join
         U __wrap_pthread_setname_np
         U __wrap_puts
         U __wrap_read
         U __wrap_sem_close
         U __wrap_sem_open
         U __wrap_sem_post
         U __wrap_sem_unlink
         U __wrap_sem_wait
         U __wrap_time
         U __wrap_timerfd_create
         U __wrap_timerfd_settime
         U __wrap_write

Regards
Michael

Re: [Xenomai] Failed testsuite/latency

[Michael Smith]

On Wed, Feb 25, 2015 at 11:24 AM, Philippe Gerum <rpm@xenomai.org> wrote:
> On 02/25/2015 09:33 AM, Bart Vissers wrote:
>> Hi Philippe,
>>
>> Before making any changes, I ran xeno-config --info:
>> Xenomai version: Xenomai/cobalt v3.0-rc3 --
>> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
>> i686 GNU/Linux
>> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
>> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
>> I-pipe release #2 detected
>> Cobalt core 3.0-rc3 detected
>> Build args: --prefix=/usr --includedir=/usr/include/xenomai
>> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
>> --build i486-linux-gnu build_alias=i486-linux-gnu
>>
>> namelist did not work, as latency does not contain any symbols. How
>> can I include these when building debian packages?
>
> I don't have much knowledge of the Debian pkg system, but the way I used
> to do this was:
>
> export DEB_BUILD_OPTIONS="debug nostrip"
>
> before building the package, maybe adding "noopt" if you also want to
> disable the optimizer, although this is not required for keeping the
> namelist. Gilles certainly has more on this.
>
> This said, at this stage you may want to build the user-space code
> manually, leaving aside the debian pkg builder. It would be much easier
> to control the build configuration process, at least for me:
>
> http://xenomai.org/installing-xenomai-3-x/#Building_the_x86_libraries_3264bit
>
>> Unfortunately, I got compilation errors after applying the patch to
>> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
>> function)
>
> Yes, I'm always referring to the current development tip in this discussion.
>
>> So I decided to repeat my steps with the git next branch, 52fb91e...
>> So, same linux kernel, i-pipe patch and kernel config. Also included
>> the printk patch. Output:
>>
>> == Sampling period: 100 us
>> == Test mode: periodic user-mode task
>> == All results in microseconds
>> warming up...
>> latency: failed to set periodic, code 9
>> ^C---|-----------|-----------|-----------|--------|------|-------------------------
>> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
>>
>> Notice the ^C. I killed it because it was running indefinitely. This
>
> That is expected, the main thread just hangs paused in this case. If you
> don't hit ^C, the real-time core should report two cobalt threads as
> follows:

On my side, when running without hitting ^C, the console output:

== Sampling period: 100 us
== Test mode: periodic user-mode task
== All results in microseconds
warming up...
latency: failed to set periodic, code 9

>
> ~ # cat /proc/xenomai/sched/threads
> CPU  PID    CLASS  TYPE      PRI   TIMEOUT       STAT       NAME
>   0  0      idle   core       -1   -             R          [ROOT]
>   0  1206   rt     cobalt      0   -             X          latency
>   0  1208   rt     cobalt      0   -             W          display-1206
>

Console output for this:

CPU  PID    CLASS  TYPE      PRI   TIMEOUT       STAT       NAME
  0  0      idle   core       -1   -             R          [ROOT/0]
  1  0      idle   core       -1   -             R          [ROOT/1]
  2  0      idle   core       -1   -             R          [ROOT/2]
  3  0      idle   core       -1   -             R          [ROOT/3]
  2  541    rt     core       98   -             W          [rtnet-stack]
  3  542    rt     core        0   -             W          [rtnet-rtpc]
  0  2959   rt     cobalt      0   -             X          latency
  0  2961   rt     cobalt      0   -             W          display-2959


> Do you confirm this on your end? If so, then can you look a bit further,
> listing the file descriptors currently open for the main thread, e.g. in
> my case:
>
> ~ # ls -l /proc/1206/fd
> total 0
> lrwx------    1 root     root            64 Feb 25 09:21 0 -> /dev/pts/0
> lrwx------    1 root     root            64 Feb 25 09:21 1 -> /dev/pts/0
> lrwx------    1 root     root            64 Feb 25 09:21 2 -> /dev/pts/0
> lrwx------    1 root     root            64 Feb 25 09:21 3 ->
> anon_inode:[cobalt-timerfd]
>

And for this:
# ls -l /proc/2959/fd

total 0
lrwx------ 1 root root 64 Feb 26 08:13 0 -> /dev/pts/1
lrwx------ 1 root root 64 Feb 26 08:13 1 -> /dev/pts/1
lrwx------ 1 root root 64 Feb 26 08:13 2 -> /dev/pts/1
lrwx------ 1 root root 64 Feb 26 08:13 3 -> anon_inode:[cobalt-timerfd]


> I'm interested to know whether you can see the last one.
>
>> was also the case in my previous attempts.
>>
>
> So you received no message visible from dmesg?
>

Also checked dmesg, no extra outputs relating to the latency program.
Michael

> --
> Philippe.

Re: [Xenomai] Failed testsuite/latency

[Michael Smith]

On Wed, Feb 25, 2015 at 10:33 AM, Bart Vissers
<bvissers@e2mtechnologies.eu> wrote:
> Hi Philippe,
>
> Before making any changes, I ran xeno-config --info:
> Xenomai version: Xenomai/cobalt v3.0-rc3 --
> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
> i686 GNU/Linux
> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
> I-pipe release #2 detected
> Cobalt core 3.0-rc3 detected
> Build args: --prefix=/usr --includedir=/usr/include/xenomai
> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
> --build i486-linux-gnu build_alias=i486-linux-gnu
>
> namelist did not work, as latency does not contain any symbols. How
> can I include these when building debian packages?
>
> Unfortunately, I got compilation errors after applying the patch to
> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
> function)
> So I decided to repeat my steps with the git next branch, 52fb91e...
> So, same linux kernel, i-pipe patch and kernel config. Also included
> the printk patch. Output:
>
> == Sampling period: 100 us
> == Test mode: periodic user-mode task
> == All results in microseconds
> warming up...
> latency: failed to set periodic, code 9
> ^C---|-----------|-----------|-----------|--------|------|-------------------------
> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
>
> Notice the ^C. I killed it because it was running indefinitely. This
> was also the case in my previous attempts.
>
>
> Best regards,
> Bart

Just to confirm my output screen pretty much looks identical, after I hit
Ctrl-C.

Michael

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 02/25/2015 09:33 AM, Bart Vissers wrote:
> Hi Philippe,
> 
> Before making any changes, I ran xeno-config --info:
> Xenomai version: Xenomai/cobalt v3.0-rc3 --
> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
> i686 GNU/Linux
> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
> I-pipe release #2 detected
> Cobalt core 3.0-rc3 detected
> Build args: --prefix=/usr --includedir=/usr/include/xenomai
> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
> --build i486-linux-gnu build_alias=i486-linux-gnu
> 
> namelist did not work, as latency does not contain any symbols. How
> can I include these when building debian packages?
> 
> Unfortunately, I got compilation errors after applying the patch to
> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
> function)
> So I decided to repeat my steps with the git next branch, 52fb91e...
> So, same linux kernel, i-pipe patch and kernel config. Also included
> the printk patch. Output:
> 
> == Sampling period: 100 us
> == Test mode: periodic user-mode task
> == All results in microseconds
> warming up...
> latency: failed to set periodic, code 9
> ^C---|-----------|-----------|-----------|--------|------|-------------------------
> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
> 
> Notice the ^C. I killed it because it was running indefinitely. This
> was also the case in my previous attempts.
> 
> 

Can any of you send me the generated debian package privately? I would
also need to know the gcc version used.

Thanks,

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 03/02/2015 03:56 PM, Philippe Gerum wrote:
> On 02/25/2015 09:33 AM, Bart Vissers wrote:
>> Hi Philippe,
>>
>> Before making any changes, I ran xeno-config --info:
>> Xenomai version: Xenomai/cobalt v3.0-rc3 --
>> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
>> i686 GNU/Linux
>> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
>> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
>> I-pipe release #2 detected
>> Cobalt core 3.0-rc3 detected
>> Build args: --prefix=/usr --includedir=/usr/include/xenomai
>> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
>> --build i486-linux-gnu build_alias=i486-linux-gnu
>>
>> namelist did not work, as latency does not contain any symbols. How
>> can I include these when building debian packages?
>>
>> Unfortunately, I got compilation errors after applying the patch to
>> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
>> function)
>> So I decided to repeat my steps with the git next branch, 52fb91e...
>> So, same linux kernel, i-pipe patch and kernel config. Also included
>> the printk patch. Output:
>>
>> == Sampling period: 100 us
>> == Test mode: periodic user-mode task
>> == All results in microseconds
>> warming up...
>> latency: failed to set periodic, code 9
>> ^C---|-----------|-----------|-----------|--------|------|-------------------------
>> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
>>
>> Notice the ^C. I killed it because it was running indefinitely. This
>> was also the case in my previous attempts.
>>
>>
> 
> Can any of you send me the generated debian package privately? I would
> also need to know the gcc version used.
> 

Never mind, I could reproduce this bug eventually. This issue is due to
some register trashing at work in the pipeline code, not to the Xenomai
core. More later.

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 03/03/2015 04:29 PM, Philippe Gerum wrote:
> On 03/02/2015 03:56 PM, Philippe Gerum wrote:
>> On 02/25/2015 09:33 AM, Bart Vissers wrote:
>>> Hi Philippe,
>>>
>>> Before making any changes, I ran xeno-config --info:
>>> Xenomai version: Xenomai/cobalt v3.0-rc3 --
>>> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
>>> i686 GNU/Linux
>>> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
>>> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
>>> I-pipe release #2 detected
>>> Cobalt core 3.0-rc3 detected
>>> Build args: --prefix=/usr --includedir=/usr/include/xenomai
>>> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
>>> --build i486-linux-gnu build_alias=i486-linux-gnu
>>>
>>> namelist did not work, as latency does not contain any symbols. How
>>> can I include these when building debian packages?
>>>
>>> Unfortunately, I got compilation errors after applying the patch to
>>> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
>>> function)
>>> So I decided to repeat my steps with the git next branch, 52fb91e...
>>> So, same linux kernel, i-pipe patch and kernel config. Also included
>>> the printk patch. Output:
>>>
>>> == Sampling period: 100 us
>>> == Test mode: periodic user-mode task
>>> == All results in microseconds
>>> warming up...
>>> latency: failed to set periodic, code 9
>>> ^C---|-----------|-----------|-----------|--------|------|-------------------------
>>> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
>>>
>>> Notice the ^C. I killed it because it was running indefinitely. This
>>> was also the case in my previous attempts.
>>>
>>>
>>
>> Can any of you send me the generated debian package privately? I would
>> also need to know the gcc version used.
>>
> 
> Never mind, I could reproduce this bug eventually. This issue is due to
> some register trashing at work in the pipeline code, not to the Xenomai
> core. More later.
>

This patch will fix this issue.

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 6e6b88a..e834437 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -517,6 +517,7 @@ sysenter_exit_fast:
 	jmp sysenter_exit
 sysenter_exit_root:
 	call __ipipe_root_sync
+	movl PT_EAX(%esp),%eax
 	jmp sysenter_exit_check
 #endif

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 03/03/2015 04:46 PM, Philippe Gerum wrote:
> On 03/03/2015 04:29 PM, Philippe Gerum wrote:
>> On 03/02/2015 03:56 PM, Philippe Gerum wrote:
>>> On 02/25/2015 09:33 AM, Bart Vissers wrote:
>>>> Hi Philippe,
>>>>
>>>> Before making any changes, I ran xeno-config --info:
>>>> Xenomai version: Xenomai/cobalt v3.0-rc3 --
>>>> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
>>>> i686 GNU/Linux
>>>> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
>>>> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
>>>> I-pipe release #2 detected
>>>> Cobalt core 3.0-rc3 detected
>>>> Build args: --prefix=/usr --includedir=/usr/include/xenomai
>>>> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
>>>> --build i486-linux-gnu build_alias=i486-linux-gnu
>>>>
>>>> namelist did not work, as latency does not contain any symbols. How
>>>> can I include these when building debian packages?
>>>>
>>>> Unfortunately, I got compilation errors after applying the patch to
>>>> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
>>>> function)
>>>> So I decided to repeat my steps with the git next branch, 52fb91e...
>>>> So, same linux kernel, i-pipe patch and kernel config. Also included
>>>> the printk patch. Output:
>>>>
>>>> == Sampling period: 100 us
>>>> == Test mode: periodic user-mode task
>>>> == All results in microseconds
>>>> warming up...
>>>> latency: failed to set periodic, code 9
>>>> ^C---|-----------|-----------|-----------|--------|------|-------------------------
>>>> RTS|  10000.000|      0.000| -10000.000|       0|     0|    00:03:26/00:03:26
>>>>
>>>> Notice the ^C. I killed it because it was running indefinitely. This
>>>> was also the case in my previous attempts.
>>>>
>>>>
>>>
>>> Can any of you send me the generated debian package privately? I would
>>> also need to know the gcc version used.
>>>
>>
>> Never mind, I could reproduce this bug eventually. This issue is due to
>> some register trashing at work in the pipeline code, not to the Xenomai
>> core. More later.
>>
> 
> This patch will fix this issue.
> 
> diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
> index 6e6b88a..e834437 100644
> --- a/arch/x86/kernel/entry_32.S
> +++ b/arch/x86/kernel/entry_32.S
> @@ -517,6 +517,7 @@ sysenter_exit_fast:
>  	jmp sysenter_exit
>  sysenter_exit_root:
>  	call __ipipe_root_sync
> +	movl PT_EAX(%esp),%eax
>  	jmp sysenter_exit_check
>  #endif
>

Now available from the download area:
http://download.gna.org/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch

and from the Xenomai GIT tree:
http://git.xenomai.org/xenomai-3.git/commit/?h=next&id=51680b1d9b3b1993011da1ddf56b54c12e59d49d

This patch is a drop in replacement for ipipe-core-3.16-x86-2 which is
broken in 32bit mode.

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Helder Daniel]

Hi,

I Tried to access the patch as I have the same problem when running latency
on cobalt:

http://download.gna.org/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch

but is not accessible:

You don't have permission to access
/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch on this server.


On 3 March 2015 at 19:18, Philippe Gerum <rpm@xenomai.org> wrote:

> On 03/03/2015 04:46 PM, Philippe Gerum wrote:
> > On 03/03/2015 04:29 PM, Philippe Gerum wrote:
> >> On 03/02/2015 03:56 PM, Philippe Gerum wrote:
> >>> On 02/25/2015 09:33 AM, Bart Vissers wrote:
> >>>> Hi Philippe,
> >>>>
> >>>> Before making any changes, I ran xeno-config --info:
> >>>> Xenomai version: Xenomai/cobalt v3.0-rc3 --
> >>>> Linux rtpc 3.16.7-xenomai-3.0-rc3 #1 SMP Mon Feb 23 12:30:46 CET 2015
> >>>> i686 GNU/Linux
> >>>> Kernel parameters: BOOT_IMAGE=/boot/vmlinuz-3.16.7-xenomai-3.0-rc3
> >>>> root=UUID=0925426e-e058-4093-963c-8b7de072e229 ro quiet
> >>>> I-pipe release #2 detected
> >>>> Cobalt core 3.0-rc3 detected
> >>>> Build args: --prefix=/usr --includedir=/usr/include/xenomai
> >>>> --mandir=/usr/share/man --with-testdir=/usr/lib/xenomai/testsuite
> >>>> --build i486-linux-gnu build_alias=i486-linux-gnu
> >>>>
> >>>> namelist did not work, as latency does not contain any symbols. How
> >>>> can I include these when building debian packages?
> >>>>
> >>>> Unfortunately, I got compilation errors after applying the patch to
> >>>> xenomai-3.0-rc3: error: ‘XENO_WARNING’ undeclared (first use in this
> >>>> function)
> >>>> So I decided to repeat my steps with the git next branch, 52fb91e...
> >>>> So, same linux kernel, i-pipe patch and kernel config. Also included
> >>>> the printk patch. Output:
> >>>>
> >>>> == Sampling period: 100 us
> >>>> == Test mode: periodic user-mode task
> >>>> == All results in microseconds
> >>>> warming up...
> >>>> latency: failed to set periodic, code 9
> >>>>
> ^C---|-----------|-----------|-----------|--------|------|-------------------------
> >>>> RTS|  10000.000|      0.000| -10000.000|       0|     0|
> 00:03:26/00:03:26
> >>>>
> >>>> Notice the ^C. I killed it because it was running indefinitely. This
> >>>> was also the case in my previous attempts.
> >>>>
> >>>>
> >>>
> >>> Can any of you send me the generated debian package privately? I would
> >>> also need to know the gcc version used.
> >>>
> >>
> >> Never mind, I could reproduce this bug eventually. This issue is due to
> >> some register trashing at work in the pipeline code, not to the Xenomai
> >> core. More later.
> >>
> >
> > This patch will fix this issue.
> >
> > diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
> > index 6e6b88a..e834437 100644
> > --- a/arch/x86/kernel/entry_32.S
> > +++ b/arch/x86/kernel/entry_32.S
> > @@ -517,6 +517,7 @@ sysenter_exit_fast:
> >       jmp sysenter_exit
> >  sysenter_exit_root:
> >       call __ipipe_root_sync
> > +     movl PT_EAX(%esp),%eax
> >       jmp sysenter_exit_check
> >  #endif
> >
>
> Now available from the download area:
> http://download.gna.org/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch
>
> and from the Xenomai GIT tree:
>
> http://git.xenomai.org/xenomai-3.git/commit/?h=next&id=51680b1d9b3b1993011da1ddf56b54c12e59d49d
>
> This patch is a drop in replacement for ipipe-core-3.16-x86-2 which is
> broken in 32bit mode.
>
> --
> Philippe.
>
> _______________________________________________
> Xenomai mailing list
> Xenomai@xenomai.org
> http://www.xenomai.org/mailman/listinfo/xenomai
>



-- 
Helder Daniel
UALG - FCT
DEEI

http://w3.ualg.pt/~hdaniel

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 03/03/2015 08:29 PM, Helder Daniel wrote:
> Hi,
> 
> I Tried to access the patch as I have the same problem when running
> latency on cobalt:
> 
> http://download.gna.org/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch
> 
> but is not accessible:
> 
> You don't have permission to access
> /adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch on this server.
>

It should be accessible now.

-- 
Philippe.

Re: [Xenomai] Failed testsuite/latency

[Helder Daniel]

Just to confirm that latency executable is running on this new patch (even
in a VMWare image)

On 3 March 2015 at 19:43, Philippe Gerum <rpm@xenomai.org> wrote:

> On 03/03/2015 08:29 PM, Helder Daniel wrote:
> > Hi,
> >
> > I Tried to access the patch as I have the same problem when running
> > latency on cobalt:
> >
> >
> http://download.gna.org/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch
> >
> > but is not accessible:
> >
> > You don't have permission to access
> > /adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch on this server.
> >
>
> It should be accessible now.
>
> --
> Philippe.
>



-- 
Helder Daniel
UALG - FCT
DEEI

http://w3.ualg.pt/~hdaniel

Re: [Xenomai] Failed testsuite/latency

[Philippe Gerum]

On 03/05/2015 01:04 PM, Helder Daniel wrote:
> Just to confirm that latency executable is running on this new patch
> (even in a VMWare image)
> 

Ok, good to know. Thanks for reporting.

> On 3 March 2015 at 19:43, Philippe Gerum <rpm@xenomai.org
> <mailto:rpm@xenomai.org>> wrote:
> 
>     On 03/03/2015 08:29 PM, Helder Daniel wrote:
>     > Hi,
>     >
>     > I Tried to access the patch as I have the same problem when running
>     > latency on cobalt:
>     >
>     > http://download.gna.org/adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch
>     >
>     > but is not accessible:
>     >
>     > You don't have permission to access
>     > /adeos/patches/v3.x/x86/ipipe-core-3.16-x86-3.patch on this server.
>     >
> 
>     It should be accessible now.
> 
>     --
>     Philippe.
> 
> 
> 
> 
> -- 
> Helder Daniel
> UALG - FCT
> DEEI
> 
> http://w3.ualg.pt/~hdaniel


-- 
Philippe.