Hi,
I'm trying to port fiasco.oc to i.MX7d. It works, but I cannot start second
core. I set trampoline addr into corresponding GPR and enables CORE1. But
nothing happens. I saw that trampoline assembler code enables SCU through
external registers. But with cortex a7, SCU hasn't got external registe
platform_control-arm-imx7.cpp
<https://drive.google.com/file/d/0B-saTZBWGyq0REtsNVdEdzhqcmZHeXk5OWhCSkNrUXJVM19j/view?usp=drivesdk>
Hi Adam :)
Le samedi 8 octobre 2016, Adam Lackorzynski > a écrit :
> Hi,
>
> On Wed Oct 05, 2016 at 19:50:45 +0200, Marc CHALAND wrote:
>
>
Le mercredi 12 octobre 2016, Adam Lackorzynski > a écrit :
>
> I do not see anything obviously wrong right away. I assume it passes the
> while loop?
>
Yes, the while loop exits. In fact, I think uboot powers up core1. I saw
some piece of code. So I asserted that core1 starts on tramp func and I s
OK, I see. My #ifndef was not good. Seems to work now. I've got the CPU[1]
goes to idle loop :). If you wish, I can send to you the patch to get it
work ?
Marc
Le jeudi 13 octobre 2016, Adam Lackorzynski a
écrit :
> Hi Marc,
>
> On Wed Oct 12, 2016 at 11:17:36 +0200, Marc CHALAND
Hi,
I'm doing a study to port old software on top of Fiasco.OC. This soft uses
routines which blocks thread scheduling between EnterRegion and LeaveRegion
call. Is there any equivalent on TUDOS ? Did somebody already get this
challenge ?
I would like to know if L4Linux uses Fiasco.OC scheduler or a
Le mer. 22 mars 2017 à 00:59, Adam Lackorzynski
a écrit :
On Tue Mar 21, 2017 at 08:31:06 +0100, Marc CHALAND wrote:
> I'm doing a study to port old software on top of Fiasco.OC. This soft uses
> routines which blocks thread scheduling between EnterRegion and
LeaveRegion
> call
Hi,
2017-03-22 23:45 GMT+01:00 Adam Lackorzynski :
>
> Basically the vCPU model is an asynchronous execution model, that is
> very similar to an actual CPU. I.e. you have vCPU that executes code and
> that has an entry vector that is being jumped to whenever the vCPU shall
> get an event (both as
Hi
Le mer. 22 mars 2017 à 00:59, Adam Lackorzynski
a écrit :
>
> With a i.MX7d you have hardware support for virtualization, so what
> about using that, i.e. running normal Linux in a VM? Getting an L4Linux
> for an older version is of course possible but a bit of work.
Do you have any sample
Le lun. 27 mars 2017 à 15:59, Christian Ludwig
a écrit :
Hi,
On Monday, 27. March 2017, 15:24:59 Matthias Lange wrote:
> On 03/27/2017 03:12 PM, Marc CHALAND wrote:
> > mailto:a...@os.inf.tu-dresden.de>> a écrit :
> > With a i.MX7d you have hardware support for vi
Le lun. 27 mars 2017 à 15:59, Christian Ludwig
a écrit :
I guess the question was more about running umodified Linux in a VM on top
of
Fiasco. In this scenario, Fiasco acts as the hypervisor only. There is the
'uvmm' package that implements a virtual machine monitor, which sets up a
hardware-lik
Le jeu. 30 mars 2017 à 23:54, Adam Lackorzynski
a écrit :
>
> > a7 hangs exactly at that
> > point. Any idea to fix this ?
>
> Multiple. You need to make sure that u-boot boots you non-secure
> (there's no hyp-mode on the secure side). u-boot needs to be enabled for
> that functionality. It hopef
Hi everybody,
I did some experiments with ORe. I played with arping and I modified
it to reply to ICMP from windows.
I also added one option to ORe to prevent promiscuous mode when not necessary.
cf attachment
Best Regards
ore.070622.patch
Description: Binary data
___
Hello,
I encounter strange problems with semaphore library from l4env. I use
a vanillia revision 230 on an intel PIII architecture. After some
debugging and tracing, I get the following scenarion :
1. thread 03 of my process calls a semaphore down timed which then
calls BLOCKTIMED IPC to semaphor
from Bjoern Doebel :
> Are you just having a problem understanding the observed values or is there
> a real problem that you are running into? If the latter, could you provide
> a small example program so that we can reproduce it here?
That's a real problem. I use several producer (08 and others)
Alexander Boettcher <[EMAIL PROTECTED]>:
> Marc CHALAND wrote:
> > 2. thread 08 calls semaphore_up inline assembler code. Before IPC
> > call, the semaphore structure is as follow :
> > counter = 0
> > pending = 0
> > queue = 03
> >
> 2.1 N
Alexander Boettcher <[EMAIL PROTECTED]>:
>
> There is one tricky situation if the wakeup message for a semaphore is
> received before the block message. This might happen if the thread
> waiting on that semaphore is preemted by the thread releasing the
> semaphore before it can send the message to
Hi
I use Nitpicker with dope applications. Sometimes, mouse cursor
becomes mad: it goes from right to the left or up to the down. On
serial console, I get the following message :
nitpicke| serio: i8042 AUX port at 0x60,0x64 irq 12
nitpicke| serio: i8042 KBD port at 0x60,0x64 irq 1
...
nitpicke| c
2007/11/5, Christian Helmuth <[EMAIL PROTECTED]>:
> Hi Marc,
Hi
> Did you start L4Linux too?
I don't start L4Linux.
> I think a complete Fiasco bootlog
> and L4Linux configuration file may help to expose the culprit.
I joined bootlog as attachment.
> BTW: Does our demo CD from http://demo.tud
2007/11/6, Christian Helmuth <[EMAIL PROTECTED]>:
>
> I think your recent super-duper mouse is not well supported by the used
> Linux 2.6.11 input drivers, sorry. I skimmed through a diff against 2.6.23
> and there changed a lot. So, backporting the fixups is no option.
Yes, I've seen.
> You coul
2007/11/6, Christian Helmuth <[EMAIL PROTECTED]>:
>
> I think your recent super-duper mouse is not well supported by the used
> Linux 2.6.11 input drivers, sorry. I skimmed through a diff against 2.6.23
> and there changed a lot. So, backporting the fixups is no option.
Yes, I've seen.
> You coul
Hi,
With Nitpicker, I try to start X server with ovlscreen driver. After a
little while, I get the following message :
l4lx| l4x_hybrid_return: Invalid hybrid return for 23.00 (0x0688d570, e, 0,
l4lx: -1, f0020d5d)!
l4lx| l4x_hybrid_return: Currently running: 00.00
After some debuggi
Hi,
I added into l4linux a feature that seems to me interesting. With the
following patch, it is possible to hide linux console window with the
following linux command:
echo N > /sys/module/l4fb/parameters/console_visible
The console can be shown with the following command :
echo Y > /sys/module/l
Marc CHALAND <[EMAIL PROTECTED]>:
> - one PS/2 which looses sync without usbhid task, but works perfectly
> when usbhid task is started
Sorry, this info is not right. After some testing, sync is also lost
but very less often than without usbhid task.
2007/11/7, Christian Helmuth <[EMAIL PROTECTED]>:
>
> sorry for the delay ;)
No problem :). sometimes, I make mistakes with my mailbox :/.
I've found a mouse which perfectly works ;).
> The package was missing from our remotely available SVN repository, but
> Adam added it today (will be availabl
2007/11/7, Christian Helmuth <[EMAIL PROTECTED]>:
> On Wed, Nov 07, 2007 at 03:09:24PM +0100, Marc CHALAND wrote:
> > I've found a mouse which perfectly works ;).
>
> So, you use a working PS/2 mouse now?
Yes, I've got 3 mice :
- one PS/2 which works
- one PS/2 w
Hi
Christian Helmuth <[EMAIL PROTECTED]>:
>
> Hm, sounds strange... maybe your BIOS's USB legacy support interferes with
> the PS/2 mouse - just a guess.
Even with USB legacy disabled, this happens.
But now, I am not blocked. I think usbhid should be used as most of
recent hardware use USB keyboa
2007/11/7, Adam Lackorzynski <[EMAIL PROTECTED]>:
>
> I've just tried to reproduce something like this but I had no 'luck'. I
> also do not understand how the code path can be taken with the given
> values. I suppose your sources are up to date? Is this reliably
> reproducible?
Yes, I have latest
2007/11/8, Adam Lackorzynski <[EMAIL PROTECTED]>:
>
> What I'd like to have is a setup that I can run in Qemu. I know it's not
> easy with X in a ramdisk etc but maybe you have this already?
Sorry, we don't have a Qemu setup. However, we plan to do one...
Marc
___
Some news about my problem.
Fiasco catches an exception (it seems to be a page fault) into
Thread::do_ipc function (do_ipc + 0xbd). As there are many inline
functions, I decided to remove INLINE option to fiasco kernel. And...
no more exception :/.
Now ovlscreen driver works perfectly.
It seems t
2007/11/18, Adam Lackorzynski <[EMAIL PROTECTED]>:
>
> You did use gcc-4.1.1-something, right? Could you use some recent
> gcc-4.2 and retest? That would be interesting.
I tried gcc-4.2.2 and result is the same.
I also tried to push some 0xdeadbeef into the stack of calling ipc
(code of l4_ipc_cal
Hi
The problem is solved : I upgraded gcc 4.2 and binutils 2.18. I also
had to completely purge build directory of fiasco. ovlscreen_drv works
as no assembler ipc shortcut. Thank you Adam for your help.
Regards
Marc
___
l4-hackers mailing list
l4-hacke
Hi,
I've found that when an ORe client finishes, ORe doesn't stop
associated worker thread. Context is correctly freed but not thread.
This may lead a lack of thread when several clients finishes and
restart several times. Here is a little patch to fix this.
Regards
Marc
ore.r238.071206.patch
D
Hello,
Sorry for my last patch. I did some more testing after sending it (I
know, it's bad) and I've found some problems in some cases :
- error when the device is not found
- normal close (thread is killed twice)
So I propose the following patch which is applicable to r250. I tested
it this morn
Hi,
I tried to use fiasco without jdb. It works fine, but, at boot time,
sigma0 issues an int 3. After some analysis, int 3 is generated by
init_memory in init_mem_v2.cc. It calls fiasco_get_status_phys(). If I
comment this, everything is then fine. Why this call is for ?
Regards
Marc
__
Hi,
I got an application which crashes into slab_alloc (slab.c:358). After
some investigation, I've found the faulty slab : l4rm_region_cache.
slabs_part != NULL, free_objs == NULL and num_free == 2.
My first question is : do you agree this state should not happen ?
If yes, I've got the followin
Adam Lackorzynski <[EMAIL PROTECTED]>:
>
> By any chance, can you provide a small test case which triggers this?
This is quite difficult to produce. I guessed that this was due to
memory leek and I've found some. So it would be easy to make a sample
by allocating memory in a same manner. Tomorow,
After more investigation, I've found that slab_alloc and slab_free on
l4rm_region_cache are not all into a critical section (for example:
l4rm_attach may be called by several threads). At first, I though
region_list_lock aimed at that, but in fact, this is not the case.
My first idea is to put sla
Hi,
Sometimes, I get the following message :
semaphore/lib/src/semaphore.c:167:__enqueue_thread():
Error : l4semahore: failed to get priority of thread 17.08: invalid
argument (-3)
Into sources, the comment says that thread has not been created by
l4thread or is dead.
But all threads are create
2008/1/22, Adam Lackorzynski <[EMAIL PROTECTED]>:
>
> The thread should exist, looking at the code path in the semaphore lib.
> The thread_id used for the prio-get is coming fron an ipc-wait so the
> thread should be there (in the sense there's a thread at all). The
> thread-lib might have some oth
Here is some more info about this log :
Each time this log appears, the state of the thread into jdb is, for example :
17.0d (deleted)a0 17.01 rcv,ipc_progr
Backtrace of each thread is mainly :
l4rm_detach
l4th_pages_free
__do_cleanup_and_block
We observed one thread with the f
2008/1/22, Adam Lackorzynski <[EMAIL PROTECTED]>:
> You're right that the slab objects themselves were not locked. The fix
> was not as easy as proposed but I think I have fixed this (update l4env
> and l4rm packages). I hope this fixes your issue.
Thank you for this patch. We will test it this a
2008/1/24, Adam Lackorzynski <[EMAIL PROTECTED]>:
> No, the thread is still alive, the '(deleted)' just means that it has
> already been unregistered at the name service.
Name service data is stored into fiasco data to be shown into jdb ?
> Could you verify the theory that the threadlib has some
Hi,
The patch fixes the crash. Test ran all night without any problem.
Thank you Adam.
I will try to get testing machine to get more info about semaphore log.
Regards
Marc
___
l4-hackers mailing list
l4-hackers@os.inf.tu-dresden.de
http://os.inf.tu-dr
Hi,
I made a svn up into l4linux-2.6, made an oldconfig and encountered
some problems with lxevent and... cron (???). Problem with lxevent,
was into rmgr_init_ping_call: _dice_msg_buffer was NULL.
So I decided to purge all build directories (fiasco, build dir,
install dir and l4linux). I edited a
Sorry Adam, I think I have trouble with my ISP. I didn't get your mail.
>From Adam Lackorzynski
> I think it has nothing to do with CONFIG_EMBEDDED.
Thank you for this info. So you confirm, to build l4linux with L4con,
EMBEDDED should be set on version 2.6.24 ?
>With 'sometimes', do you mean it
>From Ronald Aigner:
> The address of the UTCB is taken in the stub from the environment
> variable. This environment variable (_dice_corba_env->utcb) is set per
> default with l4sys_utcb_get which in turn does 'asm( "%gs:0" )'. The
> problem with Linux applications (running on L4Linux) is that th
>From Ronald Aigner:
> Now that really sounds strange. You say that the task is running as
> L4Env task? No L4Linux involved? Not even on the sender/receiver side of
> the IPC?
In that case, L4Linux is not even started. Client and server side are
pure L4env tasks. More strange : other IPC even fr
Hi,
I don't have time to do more checking on L4Linux. Today, I use dice
r238 of public repository of TUDOS. All my tasks are pure L4env ones.
I try to process an idl which is quite long. Here is a sample :
library myapp {
[uuid(2)]
interface connection {
int syn([out] u
>From Ronald Aigner:
> I build a test for the IDL you sent, but could
> not find any error. If the task using the IPC is really a pure L4Env
> task, then this IDL should work. Do you still see the error if you leave
> L4Linux out of the boot menu?
I still have a problem on that API with current ve
Hi,
I am back with my problem with UTCB IPC. To sum up the context :
I use pure l4env applications. Here is the scenario between my server
and my client :
1. client makes an UTCB IPC to manager. Manager does an
l4rm_area_reserve, creates a rcv_fpage, creates worker and sends back
worker thread id
>From Ronald Aigner :
> > 1. client makes an UTCB IPC to manager. Manager does an
> > l4rm_area_reserve, creates a rcv_fpage, creates worker and sends back
> > worker thread id to client.
> > 2. client allocates memory and associated flexpage and sends it to server.
> > 3. UTCB IPC is sent to worke
>From Ronald Aigner :
> Strange. How exactly do you set up the worker? Can you send that peace
> of code? Do you initialize (using dice_server_default_environment) the
> CORBA_Server_Environment for the worker after the worker thread is started?
That's it. In fact, server environment was not inite
>From Adam :
>
> > I updated last version of uclibc. It seems that bcmp, bcopy and bzero
> > disapeared, isn't it ?
> Yep, considered obsolete, so I just let it be this way. Replace with
> memcpy, memmove, memset (note the reversed arguement for memmove..).
That was just to confirm that change is
Hi,
I implemented an IDL with a allow_reply_only method : start. When client calls
this, it is blocked until server decides to send reply. This works fine in
general. But when client thread disapears after call, I cannot get error code
from reply function on server side. I tried to use error_funct
>From Ronald Aigner:
> When you add the error_function_server attribute to the respective
> interface, does the generated code for the reply function contain code
> that looks something like this?
OK, I've tried to put this on an inherited interface. If I put it on the right
interface, it's fine
>From Ronald Aigner:
> Before calling the reply function you could set the partner member of
> the CORBA_Server_Environment parameter. This environment is passed to
> the error function. In the error function you could then check the
> partner member.
Is it a good idea to use CORBA_server_excepti
Hi,
I get problem with our version of ubuntu to compile fiasco. date
doesn't work exactly in a same manner as gentoo and debian. It adds
"(+02.00)" at the end of output which disturbs make process. Here is
the patch that we use. It works on debian and gentoo also.
Regards
Marc
fiasco-ubun
2008/4/16, Adam Lackorzynski <[EMAIL PROTECTED]>:
> Hi Marc,
Hi Adam,
> Ok, the -R is probably a good thing to add but anyway I'd like to know
> where this happens but cannot see this behaviour in any Ubuntu version I
> tried. Which Ubuntu and maybe any 'strange' locale set?
Our version of ubu
Hi,
I've made a little test with ipcmon. This test is a simple application
launched by loader which makes an IPC to names (05) and to log server
(06).
With assembler IPC shortcut, I don't need to set an accept rule to
names. ipcmon doesn't handle requests to names. If I activate jdb IPC
monitorin
Hi guys,
Symptoms are: sem_timedwait behaves quite like sem_wait after
0x8000 usec system has been started.
Regards
Marc
diff --git a/src/l4/pkg/uclibc/lib/libpthread/src/restart.h
b/src/l4/pkg/uclibc/lib/libpthread/src/restart
index 26ae5ea..92b71d3 100644
--- a/src/l4/pkg/uclibc/lib/libpthre
Hi,
After some testing, I saw my patch is not complete. Here is the
complete version which works :).
Regards
Marc
diff --git a/src/l4/pkg/uclibc/lib/libpthread/src/restart.h
b/src/l4/pkg/uclibc/lib/libpthread/src/restart
index 26ae5ea..e4bc11b 100644
--- a/src/l4/pkg/uclibc/lib/libpthread/src/r
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