On Tuesday 10 February 2009 21:41:47 Mauro Carvalho Chehab wrote: > On Tue, 10 Feb 2009 21:31:59 +0100 > > Hans Verkuil <hverkuil@xxxxxxxxx> wrote: > > On Tuesday 10 February 2009 19:47:40 Mauro Carvalho Chehab wrote: > > > On Tue, 10 Feb 2009 10:25:26 -0800 (PST) > > > > > > Trent Piepho <xyzzy@xxxxxxxxxxxxx> wrote: > > > > On Tue, 10 Feb 2009, Eduard Huguet wrote: > > > > > I don't have yet the buggy config, but the steps I was > > > > > following when I encounter the problem were the following: > > > > > · hg clone http://linuxtv.org/hg/v4l-dvb > > > > > · cd v4l-dvb > > > > > · make menuconfig > > > > > > > > This is what I did too. Just use the menuconfig or xconfig > > > > targets. Maybe the kernel kconfig behavior has changed? > > > > > > Hmm... I did a test here with RHEL 2.6.18 kernel: > > > > > > $ make menuconfig > > > make -C /home/v4l/master/v4l menuconfig > > > make[1]: Entrando no diretório `/home/v4l/master/v4l' > > > /usr/src/kernels/2.6.18-125.el5-x86_64//scripts/kconfig/mconf > > > ./Kconfig # > > > # configuration written to .config > > > # > > > > > > > > > *** End of Linux kernel configuration. > > > *** Execute 'make' to build the kernel or try 'make help'. > > > > > > $ grep CX88 v4l/.config > > > CONFIG_VIDEO_CX88=m > > > CONFIG_VIDEO_CX88_ALSA=m > > > CONFIG_VIDEO_CX88_BLACKBIRD=m > > > CONFIG_VIDEO_CX88_DVB=m > > > CONFIG_VIDEO_CX88_MPEG=y > > > CONFIG_VIDEO_CX88_VP3054=m > > > > > > So, I got the buggy .config > > > > > > Another test with 2.6.27: > > > > > > $ make menuconfig > > > make -C /home/v4l/master/v4l menuconfig > > > make[1]: Entrando no diretório `/home/v4l/master/v4l' > > > ./scripts/make_kconfig.pl /usr/src/kernels/v2.6.27.4/ > > > /usr/src/kernels/v2.6.27.4/ Preparing to compile for kernel version > > > 2.6.27 > > > VIDEO_PXA27x: Requires at least kernel 2.6.29 > > > USB_STV06XX: Requires at least kernel 2.6.28 > > > /usr/src/kernels/v2.6.27.4.i5400//scripts/kconfig/mconf ./Kconfig > > > # > > > # configuration written to .config > > > # > > > > > > > > > *** End of Linux kernel configuration. > > > *** Execute 'make' to build the kernel or try 'make help'. > > > > > > make[1]: Saindo do diretório `/home/v4l/master/v4l' > > > [v4l@pedra master]$ grep CX88 v4l/.config > > > CONFIG_VIDEO_CX88=m > > > CONFIG_VIDEO_CX88_ALSA=m > > > CONFIG_VIDEO_CX88_BLACKBIRD=m > > > CONFIG_VIDEO_CX88_DVB=m > > > CONFIG_VIDEO_CX88_MPEG=m > > > CONFIG_VIDEO_CX88_VP3054=m > > > > > > With 2.6.27, everything is OK. > > > > > > So, it seems that a fix at some kernel between 2.6.22 and 2.6.27 > > > changed (or fixed) the Kconfig behaviour. > > > > > > I suspect that the better fix for this would be to run something > > > like: > > > > > > cat .config|sed s,'=y','=m' > > > > > > For kernels older than 2.6.27. > > > > > > Maybe Hans can give us a hint on what kernel this issue were solved, > > > with his build environment. > > > > 2.6.21 is wrong, 2.6.22 is right. Cause: dependency on VIDEOBUF_DMA_SG, > > which has a dependency on CONFIG_HAS_DMA, which was apparently > > introduced in 2.6.22 and didn't exist in 2.6.21. > > > > This is fixed by the attached diff. > > No, it didn't fix. I'm still getting this issue with 2.6.18. > > Btw, on RHEL5 2.6.18 kernel, HAS_DMA does exist: > > $ grep CONFIG_HAS_DMA /usr/src/kernels/2.6.18-125.el5-x86_64/.config > CONFIG_HAS_DMA=y Oops, this fixes a different bug. It is still a bug fix, though, since it prevents CX88 from being build at all on any vanilla kernels < 2.6.22. Can you apply it? > Also, the original reporter were for an Ubuntu kernel 2.6.22. I did some more testing and the bug disappears in kernel 2.6.25. Also, if I just run 'make', then the .config file it produces is fine. I wonder if it isn't a bug in menuconfig itself. Regards, Hans > > > Signed-off-by: Hans Verkuil <hverkuil@xxxxxxxxx> > > > > BTW, all the scripts I use to setup and run the build environment are > > available here: http://www.xs4all.nl/%7Ehverkuil/logs/scripts.tar.bz2 > > > > Regards, > > > > Hans > > Cheers, > Mauro -- Hans Verkuil - video4linux developer - sponsored by TANDBERG -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
