I've been using Antti's fix for a while, it seems to be working fine.
Any chance of getting it pushed into the main repository?
Cheers,
Tim.
Removing of unnecessary spinlock
Based on the discussion on linux-dvb it seems that ISR:s are already
serialized by the linux kernel and thus
mp3geek wrote:
safe to use this directly on the 2.6.20.x source?
The fix is valid but the patch I posted won't apply to 2.6.20. Use this
one instead.
--
Antti Seppälä
--- linux-2.6.20/drivers/media/dvb/b2c2/flexcop-pci.c~ 2007-02-04 20:44:54.0 +0200
+++
Antti Seppälä wrote:
Removing of unnecessary spinlock
Based on the discussion on linux-dvb it seems that ISR:s are already
serialized by the linux kernel and thus drivers won't have to specify
their own facilities for ISR serialization.
There is a good summary of concurrency and ISRs on page
Tim Small wrote:
There is a good summary of concurrency and ISRs on page 268 Linux
Device Drivers 3rd Edition:
http://lwn.net/images/pdf/LDD3/ch10.pdf
Sorry, I should also have referenced this:
http://lwn.net/Kernel/LDD3/
Cheers,
Tim.
___
Patrick Boettcher wrote:
On Fri, 6 Apr 2007, Antti Seppälä wrote:
Patrick Boettcher wrote:
Someone outthere with a SMP-system and a flexcop who could see if e.g.
dvbscan or dvbtraffic is killing the system/flexcop when removing the
irq_lock?
Patrick.
I've now been torturing my SMP box for
safe to use this directly on the 2.6.20.x source?
I've created a patch for removing the spinlock from latest v4l-dvb -tree:
Removing of unnecessary spinlock
Based on the discussion on linux-dvb it seems that ISR:s are already
serialized by the linux kernel and thus drivers won't have to
On Thu, 5 Apr 2007, Trent Piepho wrote:
On Thu, 5 Apr 2007, Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Sepp?l?:
Actually, looking at the code I cannot figure out why there has to be a
spinlock in the first
Patrick Boettcher wrote:
Someone outthere with a SMP-system and a flexcop who could see if e.g.
dvbscan or dvbtraffic is killing the system/flexcop when removing the
irq_lock?
Patrick.
I've now been torturing my SMP box for over three hours with various dvb
-related activities
On Fri, 6 Apr 2007, Antti Seppälä wrote:
Patrick Boettcher wrote:
Someone outthere with a SMP-system and a flexcop who could see if e.g.
dvbscan or dvbtraffic is killing the system/flexcop when removing the
irq_lock?
Patrick.
I've now been torturing my SMP box for over three
On Fri, 6 Apr 2007, Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Trent Piepho wrote:
On Thu, 5 Apr 2007, Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Sepp?l?:
Actually, looking at the code I cannot figure
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Seppälä:
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Actually, looking at the code I cannot figure out why there has to be a
spinlock in the first place.
The lock is
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Seppälä:
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Actually, looking at the code I cannot figure out why there has to be a
Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Seppälä:
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Actually, looking at the code I cannot figure out why there has to
Michael Krufky wrote:
Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Seppälä:
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Actually, looking at the code I cannot figure
Em Qua, 2007-04-04 às 15:28 +0200, P. van Gaans escreveu:
I've got a Technisat Airstar USB that doesn't lock, so I'd like to try
the patch whatever it's for. How do I apply it?
I've just commited Hendrik's patch at v4l-dvb tree. So, you can just do:
hg clone
Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Seppälä:
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Actually, looking at the code I cannot figure out why there has to be
On Thu, 5 Apr 2007, Patrick Boettcher wrote:
On Thu, 5 Apr 2007, Borgi2008 wrote:
Am Mittwoch, den 04.04.2007, 23:29 +0300 schrieb Antti Sepp?l?:
Actually, looking at the code I cannot figure out why there has to be a
spinlock in the first place.
The lock is only taken in the
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
flexcop-lockdep.patch
Description: application/mbox
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I've got a Technisat Airstar USB that doesn't lock, so I'd like to try
the patch whatever it's for. How do I apply it?
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Borgi2008 wrote:
Hello,
i've created a bugfixes. Hope it could helps you.
Hendrik Borghorst
Actually, looking at the code I cannot figure out why there has to be a
spinlock in the first place.
The lock is only taken in the interrupt handler which already runs in
atomic context so there is
Using hg from last night, with 2.6.21-rc4, I get:
Mar 22 08:34:46 192.168.222.2 b2c2-flexcop: B2C2 FlexcopII/II(b)/III
digital TV receiver chip loaded successfully
Mar 22 08:34:52 192.168.222.2 flexcop-pci: will use the HW PID filter.
Mar 22 08:34:52 192.168.222.2 flexcop-pci: card revision 2
BTW, the non-static key message is from linux-2.6.21-rc4/kernel/lockdep.c.
Tim.
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Hi,
using a very recent hg pull I can see in the logs the following
message (tuning and receiving work fine)
BUG: at kernel/lockdep.c:1860 trace_hardirqs_on()
[c010318c] show_trace_log_lvl+0x19/0x2e
[c0103285] show_trace+0x12/0x14
[c010329b] dump_stack+0x14/0x16
[c012c573]
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