Jack2 Issue

[Marco Castorina]

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Hi,
 first of all thank you for your hard work on developing advanced musical tools for ubuntu.
I just installed Jack2 (1.9.2) because i wanted to test it. Everything was ok when compiling and installing, but when i try to run Jackd, i get this error:
jackd: symbol lookup error: jackd: undefined symbol: jackctl_server_create
I'm sending you log of entire process:
./waf configure --dbus --enable-pkg-config-dbus-service-dir
Linux detected
Checking for program g++                 : ok /usr/bin/g++
Checking for compiler version            : ok 4.3.3
Checking for program cpp                 : ok /usr/bin/cpp
Checking for program ar                  : ok /usr/bin/ar
Checking for program ranlib              : ok /usr/bin/ranlib
Checking for g++                         : ok 
Checking for program gcc                 : ok /usr/bin/gcc
Checking for compiler version            : ok 4.3.3
Checking for program ar                  : ok /usr/bin/ar
Checking for program ranlib              : ok /usr/bin/ranlib
Checking for gcc                         : ok 
Checking for header samplerate.h         : ok
Checking for alsa >= 1.0.0               : ok
Checking for libfreebob >= 1.0.0         : Package "libfreebob (>= 1.0.0)" could not be found or the found version is too old.
Checking for libffado >= 1.999.17        : Package "libffado (>= 1.999.17)" could not be found or the found version is too old.
Checking for dbus-1 >= 1.0.0             : ok
Checking for dbus-1 flags                : ok
Checking for header expat.h              : ok
Checking for header sndfile.h            : ok
Checking for header ncurses.h            : ok
Checking for library readline            : ok

==================                     
JACK 1.9.2 exported from r3454M
Build with a maximum of 64 JACK clients
Build with a maximum of 1024 ports
Install prefix                           : /usr/local
Library directory                        : /usr/local/lib/
Drivers directory                        : /usr/local/lib/jack
Build doxygen documentation              : no
Build with engine profiling              : no
Build with ALSA support                  : yes
Build with FireWire (FreeBob) support    : no
Build with FireWire (FFADO) support      : no
Build D-Bus JACK (jackdbus)              : yes
D-Bus service install directory          : /usr/share/dbus-1/services
Configuration finished successfully (00:00:00); project is now ready to build.

.

sudo ./waf install
[sudo] password for marco:
* installing common/jack/systemdeps.h as /usr/local/include/jack/systemdeps.h
* installing common/jack/jslist.h as /usr/local/include/jack/jslist.h
* installing common/jack/control.h as /usr/local/include/jack/control.h
* symlink /usr/local/bin/jack_disconnect (-> jack_connect)
* installing example-clients/jack_control as /usr/local/bin/jack_control
* installing build/default/jack.pc as /usr/local/lib//pkgconfig/jack.pc
* installing build/default/dbus/org.jackaudio.service as /usr/share/dbus-1/services/org.jackaudio.service
* installing build/default/common/libjackserver.so as /usr/local/lib//libjackserver.so.0.1.0
* symlink /usr/local/lib//libjackserver.so.0 (-> libjackserver.so.0.1.0)
* symlink /usr/local/lib//libjackserver.so (-> libjackserver.so.0.1.0)
* installing build/default/common/libjack.so as /usr/local/lib//libjack.so.0.1.0
* symlink /usr/local/lib//libjack.so.0 (-> libjack.so.0.1.0)
* symlink /usr/local/lib//libjack.so (-> libjack.so.0.1.0)
* installing build/default/common/netmanager.so as /usr/local/lib/jack/netmanager.so
* installing build/default/common/profiler.so as /usr/local/lib/jack/profiler.so
* installing build/default/common/netadapter.so as /usr/local/lib/jack/netadapter.so
* installing build/default/common/audioadapter.so as /usr/local/lib/jack/audioadapter.so
* installing build/default/linux/jackd as /usr/local/bin/jackd
* installing build/default/linux/jack_dummy.so as /usr/local/lib/jack/jack_dummy.so
* installing build/default/linux/jack_alsa.so as /usr/local/lib/jack/jack_alsa.so
* installing build/default/linux/jack_net.so as /usr/local/lib/jack/jack_net.so
* installing build/default/example-clients/jack_load as /usr/local/bin/jack_load
* installing build/default/example-clients/jack_freewheel as /usr/local/bin/jack_freewheel
* installing build/default/example-clients/jack_simple_client as /usr/local/bin/jack_simple_client
* installing build/default/example-clients/jack_showtime as /usr/local/bin/jack_showtime
* installing build/default/example-clients/jack_cpu_load as /usr/local/bin/jack_cpu_load
* installing build/default/example-clients/jack_metro as /usr/local/bin/jack_metro
* installing build/default/example-clients/jack_evmon as /usr/local/bin/jack_evmon
* installing build/default/example-clients/jack_midiseq as /usr/local/bin/jack_midiseq
* installing build/default/example-clients/jack_zombie as /usr/local/bin/jack_zombie
* installing build/default/example-clients/jack_connect as /usr/local/bin/jack_connect
* installing build/default/example-clients/jack_monitor_client as /usr/local/bin/jack_monitor_client
* installing build/default/example-clients/jack_bufsize as /usr/local/bin/jack_bufsize
* installing build/default/example-clients/jack_lsp as /usr/local/bin/jack_lsp
* installing build/default/example-clients/jack_alias as /usr/local/bin/jack_alias
* installing build/default/example-clients/jack_thru as /usr/local/bin/jack_thru
* installing build/default/example-clients/jack_midisine as /usr/local/bin/jack_midisine
* installing build/default/example-clients/jack_unload as /usr/local/bin/jack_unload
* installing build/default/example-clients/jack_server_control as /usr/local/bin/jack_server_control
* installing build/default/tests/jack_test as /usr/local/bin/jack_test
* installing build/default/tests/jack_cpu as /usr/local/bin/jack_cpu
* installing build/default/tests/jack_delay as /usr/local/bin/jack_delay
* installing build/default/tests/jack_multiple_metro as /usr/local/bin/jack_multiple_metro
* installing build/default/example-clients/jack_rec as /usr/local/bin/jack_rec
* installing build/default/example-clients/inprocess.so as /usr/local/lib/jack/inprocess.so
* installing build/default/dbus/jackdbus as /usr/local/bin/jackdbus
Compilation and installation finished successfully (00:00:00)

Thank you very much guys; i'm new to development and understanding of Linux Audio and i will make my best to help the community.

Cheers,

 

Marco

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[Stéphane Letz]

Le 22 juin 09 à 18:57, Marco Castorina a écrit :

>
> Hi,
>  first of all thank you for your hard work on developing advanced  
> musical tools for ubuntu.
> I just installed Jack2 (1.9.2) because i wanted to test it.  
> Everything was ok when compiling and installing, but when i try to  
> run Jackd, i get this error:
> jackd: symbol lookup error: jackd: undefined symbol:  
> jackctl_server_create
> I'm sending you log of entire process:

"sudo ldconfig" then starting again should solve the problem.

Stephane
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[James Warden]

another issue. This is more for your information, I think jack2 is not to be blamed at all but some ppl may experience some weird stuff, as described below.

I upgraded xorg to version 7.4 in order to catch up on more recent updates (KDE 4.2, etc). I also upgraded the intel video driver to version 2.7.99 for my intel IGP.
Well, looks all nice but jack2 does not like it very much and produces clicks and pops (not logged as xruns though).

Things that changed compared to my previous setup

1- xorg 7.4 requires hal to work. I always had hal disabled, had no need of it. But now, I must have it otherwise, no mouse, no keyboard running at X startup.

2- with the normal video driver setup (2D accel, and DRI stuff), I get kernel bugs. I don't have a trace to provide now but it looks quite ugly. Disabling 2D acc and DRI stops the kernel bugs but jack2 still craps out some clicks and pops.

Remedy:
I am using jack1 as a fallback and things seem stable again. But this xorg development really sucks.

Another annoyance: even if you disable the KDE sound server (using gstreamer and PA in 4.2), you have knotify4 running and busying the sound device. You either have to kill the bugger or disable it in system settings.

I believe, I will have to trim all this "shiny" new stuff to the bare minimum and use openbox or fluxbox again. The desktop and windows managers tend to be more and more invasive these days ...

Sorry if I sound a little pissed-off.

J.

--- On Mon, 6/22/09, Stéphane Letz <letz@...> wrote:

> From: Stéphane Letz <letz@...>
> Subject: Re: [Jack-Devel] Jack2 Issue
> To: "Marco Castorina" <marco.castorina@...>
> Cc: "JACK Developers" <jack-devel@...>
> Date: Monday, June 22, 2009, 1:31 PM
>
> Le 22 juin 09 à 18:57, Marco Castorina a écrit :
>
> >
> > Hi,
> >  first of all thank you for your hard work on
> developing advanced musical tools for ubuntu.
> > I just installed Jack2 (1.9.2) because i wanted to
> test it. Everything was ok when compiling and installing,
> but when i try to run Jackd, i get this error:
> > jackd: symbol lookup error: jackd: undefined symbol:
> jackctl_server_create
> > I'm sending you log of entire process:
>
>
> "sudo ldconfig" then starting again should solve the
> problem.
>
> Stephane_______________________________________________
> Jack-Devel mailing list
> Jack-Devel@...
> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>

     
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Jack-Devel@...
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[Stéphane Letz]

Le 23 juin 09 à 11:31, James Warden a écrit :

>
> another issue. This is more for your information, I think jack2 is  
> not to be blamed at all but some ppl may experience some weird  
> stuff, as described below.
>
> I upgraded xorg to version 7.4 in order to catch up on more recent  
> updates (KDE 4.2, etc). I also upgraded the intel video driver to  
> version 2.7.99 for my intel IGP.
> Well, looks all nice but jack2 does not like it very much and  
> produces clicks and pops (not logged as xruns though).
>
> Things that changed compared to my previous setup
>
> 1- xorg 7.4 requires hal to work. I always had hal disabled, had no  
> need of it. But now, I must have it otherwise, no mouse, no keyboard  
> running at X startup.
>
> 2- with the normal video driver setup (2D accel, and DRI stuff), I  
> get kernel bugs. I don't have a trace to provide now but it looks  
> quite ugly. Disabling 2D acc and DRI stops the kernel bugs but jack2  
> still craps out some clicks and pops.
>
> Remedy:
> I am using jack1 as a fallback and things seem stable again. But  
> this xorg development really sucks.

Since JACK1 seems to works better (and JACK1/JACK2 share the same ALSA  
backend code) could you possibly try JACK2 in "synchronous" mode? (-S  
in command line) and see if it helps?

Thanks

Stéphane
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Jack-Devel@...
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[James Warden]

Stephane,

I always use the -S option because I occasionally use a netjack client. Nope, that did not help.

But let me come back with a more explicit description of the symptoms. I had no time to be systematic in my observations, I just wanted my system back to normal because I had some stuff to finish. Upgrading in the middle of this has been a mistake from my part. I hope to find time during the week-end for a more systematic approach of the problem.

J.

--- On Tue, 6/23/09, Stéphane Letz <letz@...> wrote:

> From: Stéphane Letz <letz@...>
> Subject: Re: [Jack-Devel] Jack2 Issue
> To: "James Warden" <warjamy@...>
> Cc: "JACK Developers" <jack-devel@...>
> Date: Tuesday, June 23, 2009, 5:35 AM
>
> Le 23 juin 09 à 11:31, James Warden a écrit :
>
> >
> > another issue. This is more for your information, I
> think jack2 is not to be blamed at all but some ppl may
> experience some weird stuff, as described below.
> >
> > I upgraded xorg to version 7.4 in order to catch up on
> more recent updates (KDE 4.2, etc). I also upgraded the
> intel video driver to version 2.7.99 for my intel IGP.
> > Well, looks all nice but jack2 does not like it very
> much and produces clicks and pops (not logged as xruns
> though).
> >
> > Things that changed compared to my previous setup
> >
> > 1- xorg 7.4 requires hal to work. I always had hal
> disabled, had no need of it. But now, I must have it
> otherwise, no mouse, no keyboard running at X startup.
> >
> > 2- with the normal video driver setup (2D accel, and
> DRI stuff), I get kernel bugs. I don't have a trace to
> provide now but it looks quite ugly. Disabling 2D acc and
> DRI stops the kernel bugs but jack2 still craps out some
> clicks and pops.
> >
> > Remedy:
> > I am using jack1 as a fallback and things seem stable
> again. But this xorg development really sucks.
>
> Since JACK1 seems to works better (and JACK1/JACK2 share
> the same ALSA backend code) could you possibly try JACK2 in
> "synchronous" mode? (-S in command line) and see if it
> helps?
>
> Thanks
>
> Stéphane

     
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Jack-Devel@...
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[James Warden]

that's the kind of debug trace you get from the kernel :

 BUG: using smp_processor_id() in preemptible [00000000] code: Xorg/4002
caller is iounmap_atomic+0xb/0x46
Pid: 4002, comm: Xorg Not tainted 2.6.29.4-rt15 #1
Call Trace:
[<c01f2af6>] ? debug_smp_processor_id+0xa2/0xb4
[<c01180b5>] ? iounmap_atomic+0xb/0x46
[<f89d0fb4>] ? i915_gem_pwrite_ioctl+0x244/0x367 [i915]
[<c0174655>] ? _slab_irq_disable+0x22/0x42
[<f85f47d2>] ? drm_ioctl+0x1a8/0x21a [drm]
[<f89d0d70>] ? i915_gem_pwrite_ioctl+0x0/0x367 [i915]
[<c0183390>] ? vfs_ioctl+0x47/0x5d
[<c0183931>] ? do_vfs_ioctl+0x4b3/0x4e9
[<c01368d6>] ? hrtimer_start+0xd/0x11
[<c01270bd>] ? do_setitimer+0x165/0x2b7
[<c0179580>] ? vfs_read+0xe3/0xf4
[<c01839a8>] ? sys_ioctl+0x41/0x58
[<c0102904>] ? sysenter_do_call+0x12/0x26


It litters the syslog. When I disable 2D acc and DRI from xorg.conf, these kernel bugs disappear.

J.

--- On Tue, 6/23/09, James Warden <warjamy@...> wrote:

> From: James Warden <warjamy@...>
> Subject: Re: [Jack-Devel] Jack2 Issue
> To: "Stéphane Letz" <letz@...>
> Cc: "JACK Developers" <jack-devel@...>
> Date: Tuesday, June 23, 2009, 5:48 AM
>
> Stephane,
>
> I always use the -S option because I occasionally use a
> netjack client. Nope, that did not help.
>
> But let me come back with a more explicit description of
> the symptoms. I had no time to be systematic in my
> observations, I just wanted my system back to normal because
> I had some stuff to finish. Upgrading in the middle of this
> has been a mistake from my part. I hope to find time during
> the week-end for a more systematic approach of the problem.
>
> J.
>
> --- On Tue, 6/23/09, Stéphane Letz <letz@...>
> wrote:
>
> > From: Stéphane Letz <letz@...>
> > Subject: Re: [Jack-Devel] Jack2 Issue
> > To: "James Warden" <warjamy@...>
> > Cc: "JACK Developers" <jack-devel@...>
> > Date: Tuesday, June 23, 2009, 5:35 AM
> >
> > Le 23 juin 09 à 11:31, James Warden a écrit :
> >
> > >
> > > another issue. This is more for your information,
> I
> > think jack2 is not to be blamed at all but some ppl
> may
> > experience some weird stuff, as described below.
> > >
> > > I upgraded xorg to version 7.4 in order to catch
> up on
> > more recent updates (KDE 4.2, etc). I also upgraded
> the
> > intel video driver to version 2.7.99 for my intel
> IGP.
> > > Well, looks all nice but jack2 does not like it
> very
> > much and produces clicks and pops (not logged as
> xruns
> > though).
> > >
> > > Things that changed compared to my previous
> setup
> > >
> > > 1- xorg 7.4 requires hal to work. I always had
> hal
> > disabled, had no need of it. But now, I must have it
> > otherwise, no mouse, no keyboard running at X
> startup.
> > >
> > > 2- with the normal video driver setup (2D accel,
> and
> > DRI stuff), I get kernel bugs. I don't have a trace
> to
> > provide now but it looks quite ugly. Disabling 2D acc
> and
> > DRI stops the kernel bugs but jack2 still craps out
> some
> > clicks and pops.
> > >
> > > Remedy:
> > > I am using jack1 as a fallback and things seem
> stable
> > again. But this xorg development really sucks.
> >
> > Since JACK1 seems to works better (and JACK1/JACK2
> share
> > the same ALSA backend code) could you possibly try
> JACK2 in
> > "synchronous" mode? (-S in command line) and see if
> it
> > helps?
> >
> > Thanks
> >
> > Stéphane
>
>
>      
> _______________________________________________
> Jack-Devel mailing list
> Jack-Devel@...
> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>

     
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[Marc-Olivier Barre-3]

On Tue, 23 Jun 2009 04:01:27 -0700 (PDT), James Warden <warjamy@...>
wrote:

> that's the kind of debug trace you get from the kernel :
>
>  BUG: using smp_processor_id() in preemptible [00000000] code: Xorg/4002
> caller is iounmap_atomic+0xb/0x46
> Pid: 4002, comm: Xorg Not tainted 2.6.29.4-rt15 #1
> Call Trace:
> [<c01f2af6>] ? debug_smp_processor_id+0xa2/0xb4
> [<c01180b5>] ? iounmap_atomic+0xb/0x46
> [<f89d0fb4>] ? i915_gem_pwrite_ioctl+0x244/0x367 [i915]
> [<c0174655>] ? _slab_irq_disable+0x22/0x42
> [<f85f47d2>] ? drm_ioctl+0x1a8/0x21a [drm]
> [<f89d0d70>] ? i915_gem_pwrite_ioctl+0x0/0x367 [i915]
> [<c0183390>] ? vfs_ioctl+0x47/0x5d
> [<c0183931>] ? do_vfs_ioctl+0x4b3/0x4e9
> [<c01368d6>] ? hrtimer_start+0xd/0x11
> [<c01270bd>] ? do_setitimer+0x165/0x2b7
> [<c0179580>] ? vfs_read+0xe3/0xf4
> [<c01839a8>] ? sys_ioctl+0x41/0x58
> [<c0102904>] ? sysenter_do_call+0x12/0x26
>
>
> It litters the syslog. When I disable 2D acc and DRI from xorg.conf,

these
> kernel bugs disappear.

Hi,

Disable GEM in your kernel and try again... And eventually, report a bug to
the guys working on the intel driver :)

Cheers,

--
Marc-Olivier Barre
XMPP ID : marco@...
www.MarcOChapeau.org
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[Marco Castorina]

Some parts of this message have been removed. Learn more about Nabble's security policy.

Dear guys,
 thanks to Stephane i solved this problem.
After running ldconfig, i solved the problem of undefined symbol but i got this problem (i'm using an external usb M-AUDIO card):
/usr/local/bin/jackd -R -P89 -t1000 -m -dalsa -r44100 -p128 -n3 -D -Chw:0,1 -Phw:0,0 -Xseq -H -M
.
.
.

Acquire audio card Audio0

Failed to acquire device: Input/output error

Error playback audio device hw:0,0 not available...

Cannot initialize driver

no message buffer overruns

JackServer::Open() failed with -1

Write server and clients timing data...

Failed to start server

Always thanks to Stephane, i installed the svn version and fixed also that problem. Now it works perfectly. I hope to help you in the future.

Cheers,

Marco

---

Da: Stéphane Letz <letz@...>
A: Marco Castorina <marco.castorina@...>
Cc: JACK Developers <jack-devel@...>
Inviato: Lunedì 22 giugno 2009, 19:31:58
Oggetto: Re: [Jack-Devel] Jack2 Issue


Le 22 juin 09 à 18:57, Marco Castorina a écrit :

>
> Hi,
>  first of all thank you for your hard work on developing advanced musical tools for ubuntu.
> I just installed Jack2 (1.9.2) because i wanted to test it. Everything was ok when compiling and installing, but when i try to run Jackd, i get this error:
> jackd: symbol lookup error: jackd: undefined symbol: jackctl_server_create
> I'm sending you log of entire process:


"sudo ldconfig" then starting again should solve the problem.

Stephane

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Jack-Devel@...
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[James Warden]

I've read about GEM. That's not really a concern to me since I don't use 3D acc on my DAW PC, and the kernel bugs were about that.

I have found a fix to my 'hal' problem, for those who face a similar issue with xorg 7.4 and hal interaction. The following fix will emulate the old behavior so you won't need hald running at all (if you, like me, don't want it) :

in /etc/X11/xorg.conf, add this :

Section "ServerFlags"
        Option "DontZap"  "0"
        Option "AllowEmptyInput" "0"
        Option "AutoAddDevices"  "0"
        Option "AutoEnableDevices" "0"
EndSection

That's it. Now you can start X without hal running.
I reenabled 2D acc though. The CPU load was unacceptable when e.g mouse-scrolling a web page :)

Jack2 is happy again, and me too :)

Cheer!
J.


--- On Tue, 6/23/09, Marc-Olivier Barre <marco@...> wrote:

> From: Marc-Olivier Barre <marco@...>
> Subject: Re: [Jack-Devel] Jack2 Issue
> To: "James Warden" <warjamy@...>
> Cc: "Stéphane Letz" <letz@...>, "JACK Developers" <jack-devel@...>
> Date: Tuesday, June 23, 2009, 9:02 AM
> On Tue, 23 Jun 2009 04:01:27 -0700
> (PDT), James Warden <warjamy@...>
> wrote:
> > that's the kind of debug trace you get from the kernel
> :
> >
> >  BUG: using smp_processor_id() in preemptible
> [00000000] code: Xorg/4002
> > caller is iounmap_atomic+0xb/0x46
> > Pid: 4002, comm: Xorg Not tainted 2.6.29.4-rt15 #1
> > Call Trace:
> > [<c01f2af6>] ? debug_smp_processor_id+0xa2/0xb4
> > [<c01180b5>] ? iounmap_atomic+0xb/0x46
> > [<f89d0fb4>] ? i915_gem_pwrite_ioctl+0x244/0x367
> [i915]
> > [<c0174655>] ? _slab_irq_disable+0x22/0x42
> > [<f85f47d2>] ? drm_ioctl+0x1a8/0x21a [drm]
> > [<f89d0d70>] ? i915_gem_pwrite_ioctl+0x0/0x367
> [i915]
> > [<c0183390>] ? vfs_ioctl+0x47/0x5d
> > [<c0183931>] ? do_vfs_ioctl+0x4b3/0x4e9
> > [<c01368d6>] ? hrtimer_start+0xd/0x11
> > [<c01270bd>] ? do_setitimer+0x165/0x2b7
> > [<c0179580>] ? vfs_read+0xe3/0xf4
> > [<c01839a8>] ? sys_ioctl+0x41/0x58
> > [<c0102904>] ? sysenter_do_call+0x12/0x26
> >
> >
> > It litters the syslog. When I disable 2D acc and DRI
> from xorg.conf,
> these
> > kernel bugs disappear.
>
> Hi,
>
> Disable GEM in your kernel and try again... And eventually,
> report a bug to
> the guys working on the intel driver :)
>
> Cheers,
>
> --
> Marc-Olivier Barre
> XMPP ID : marco@...
> www.MarcOChapeau.org
>

     
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[James Warden]

ah sorry, the DontZap option need not be included if you want the Ctrl-Alt-Backspace to work (restart X). It has nothing to do with the rest.

J.

--- On Tue, 6/23/09, James Warden <warjamy@...> wrote:

> From: James Warden <warjamy@...>
> Subject: Re: [Jack-Devel] Jack2 Issue
> To: "Marc-Olivier Barre" <marco@...>
> Cc: "JACK Developers" <jack-devel@...>
> Date: Tuesday, June 23, 2009, 2:16 PM
>
> I've read about GEM. That's not really a concern to me
> since I don't use 3D acc on my DAW PC, and the kernel bugs
> were about that.
>
> I have found a fix to my 'hal' problem, for those who face
> a similar issue with xorg 7.4 and hal interaction. The
> following fix will emulate the old behavior so you won't
> need hald running at all (if you, like me, don't want it) :
>
> in /etc/X11/xorg.conf, add this :
>
> Section "ServerFlags"
>         Option "DontZap"  "0"
>         Option "AllowEmptyInput" "0"
>         Option "AutoAddDevices" 
> "0"
>         Option "AutoEnableDevices" "0"
> EndSection
>
> That's it. Now you can start X without hal running.
> I reenabled 2D acc though. The CPU load was unacceptable
> when e.g mouse-scrolling a web page :)
>
> Jack2 is happy again, and me too :)
>
> Cheer!
> J.
>
>
> --- On Tue, 6/23/09, Marc-Olivier Barre <marco@...>
> wrote:
>
> > From: Marc-Olivier Barre <marco@...>
> > Subject: Re: [Jack-Devel] Jack2 Issue
> > To: "James Warden" <warjamy@...>
> > Cc: "Stéphane Letz" <letz@...>,
> "JACK Developers" <jack-devel@...>
> > Date: Tuesday, June 23, 2009, 9:02 AM
> > On Tue, 23 Jun 2009 04:01:27 -0700
> > (PDT), James Warden <warjamy@...>
> > wrote:
> > > that's the kind of debug trace you get from the
> kernel
> > :
> > >
> > >  BUG: using smp_processor_id() in preemptible
> > [00000000] code: Xorg/4002
> > > caller is iounmap_atomic+0xb/0x46
> > > Pid: 4002, comm: Xorg Not tainted 2.6.29.4-rt15
> #1
> > > Call Trace:
> > > [<c01f2af6>] ?
> debug_smp_processor_id+0xa2/0xb4
> > > [<c01180b5>] ? iounmap_atomic+0xb/0x46
> > > [<f89d0fb4>] ?
> i915_gem_pwrite_ioctl+0x244/0x367
> > [i915]
> > > [<c0174655>] ? _slab_irq_disable+0x22/0x42
> > > [<f85f47d2>] ? drm_ioctl+0x1a8/0x21a [drm]
> > > [<f89d0d70>] ?
> i915_gem_pwrite_ioctl+0x0/0x367
> > [i915]
> > > [<c0183390>] ? vfs_ioctl+0x47/0x5d
> > > [<c0183931>] ? do_vfs_ioctl+0x4b3/0x4e9
> > > [<c01368d6>] ? hrtimer_start+0xd/0x11
> > > [<c01270bd>] ? do_setitimer+0x165/0x2b7
> > > [<c0179580>] ? vfs_read+0xe3/0xf4
> > > [<c01839a8>] ? sys_ioctl+0x41/0x58
> > > [<c0102904>] ? sysenter_do_call+0x12/0x26
> > >
> > >
> > > It litters the syslog. When I disable 2D acc and
> DRI
> > from xorg.conf,
> > these
> > > kernel bugs disappear.
> >
> > Hi,
> >
> > Disable GEM in your kernel and try again... And
> eventually,
> > report a bug to
> > the guys working on the intel driver :)
> >
> > Cheers,
> >
> > --
> > Marc-Olivier Barre
> > XMPP ID : marco@...
> > www.MarcOChapeau.org
> >
>
>
>      
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