kernel June 2008

kernel@lists.fedoraproject.org

36 participants
19 discussions

Firmware
by David Woodhouse 15 Jul '08

15 Jul '08

Been playing with how I'd make the kernel package deal with the new 'make firmware_install' stuff. Currently looks something like this. I suspect that (for now) we should make the kernel binary packages depend on kernel-firmware? Should the package own the /lib/firmware/ directory? Ideally we'll want kernel-firmware to be a .noarch.rpm, but we can't get that until we start to build it from a separate srpm. Other comments? (the patch is from git.infradead.org/users/dwmw2/firmware-2.6.git) Index: config-generic =================================================================== RCS file: /cvs/pkgs/rpms/kernel/devel/config-generic,v retrieving revision 1.109 diff -u -p -r1.109 config-generic --- config-generic 4 Jun 2008 00:22:50 -0000 1.109 +++ config-generic 9 Jun 2008 09:59:12 -0000 @@ -2479,9 +2479,9 @@ CONFIG_SND_ICE1724=m CONFIG_SND_INTEL8X0=m CONFIG_SND_INTEL8X0M=m CONFIG_SND_KORG1212=m -CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL=y +# CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL is not set CONFIG_SND_MAESTRO3=m -CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL=y +# CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL is not set CONFIG_SND_MIRO=m CONFIG_SND_MIXART=m CONFIG_SND_NM256=m @@ -2502,7 +2502,7 @@ CONFIG_SND_VIA82XX_MODEM=m CONFIG_SND_VIRTUOSO=m CONFIG_SND_VX222=m CONFIG_SND_YMFPCI=m -CONFIG_SND_YMFPCI_FIRMWARE_IN_KERNEL=y +# CONFIG_SND_YMFPCI_FIRMWARE_IN_KERNEL is not set # # ALSA USB devices @@ -3536,3 +3536,14 @@ CONFIG_SOC_CAMERA_MT9M001=m CONFIG_SOC_CAMERA_MT9V022=m # MT9V022_PCA9536_SWITCH is not set +CONFIG_BUILTIN_FIRMWARE="" +# CONFIG_USB_KAWETH_FIRMWARE is not set +# CONFIG_DVB_TTUSB_BUDGET_FIRMWARE is not set +# CONFIG_USB_SERIAL_WHITEHEAT_FIRMWARE is not set +# CONFIG_USB_SERIAL_KEYSPAN_PDA_FIRMWARE is not set +# CONFIG_USB_SERIAL_TI_3410_FIRMWARE is not set +# CONFIG_USB_SERIAL_TI_5052_FIRMWARE is not set +# CONFIG_USB_SERIAL_XIRCOM_FIRMWARE is not set +# CONFIG_USB_EMI62_FIRMWARE is not set +# CONFIG_USB_EMI26_FIRMWARE is not set + Index: kernel.spec =================================================================== RCS file: /cvs/pkgs/rpms/kernel/devel/kernel.spec,v retrieving revision 1.679 diff -u -p -r1.679 kernel.spec --- kernel.spec 7 Jun 2008 01:48:53 -0000 1.679 +++ kernel.spec 9 Jun 2008 09:59:13 -0000 @@ -76,6 +76,8 @@ Summary: The Linux kernel (the core of t %define with_doc %{?_without_doc: 0} %{?!_without_doc: 1} # kernel-headers %define with_headers %{?_without_headers: 0} %{?!_without_headers: 1} +# kernel-firmware +%define with_firmware %{?_without_firmware: 0} %{?!_without_firmware: 1} # kernel-debuginfo %define with_debuginfo %{?_without_debuginfo: 0} %{!?_without_debuginfo: 1} # kernel-bootwrapper (for creating zImages from kernel + initrd) @@ -565,6 +567,7 @@ Patch07: linux-2.6-compile-fixes.patch #Patch08: linux-2.6-compile-fix-gcc-43.patch %if !%{nopatches} +Patch5: linux-2.6-firmware.patch Patch10: linux-2.6-hotfixes.patch @@ -693,6 +696,14 @@ header files define structures and const building most standard programs and are also needed for rebuilding the glibc package. +%package firmware +Summary: Firmware files used by the Linux kernel +Group: Development/System +License: Redistributable +%description firmware +Kernel-firmware includes firmware files required for some devices to +operate. + %package bootwrapper Summary: Boot wrapper files for generating combined kernel + initrd images Group: Development/System @@ -992,6 +1003,7 @@ fi %if !%{nopatches} +ApplyPatch linux-2.6-firmware.patch ApplyPatch linux-2.6-hotfixes.patch # Roland's utrace ptrace replacement. @@ -1581,6 +1593,10 @@ rm -f $RPM_BUILD_ROOT/usr/include/asm*/i rm -f $RPM_BUILD_ROOT/usr/include/asm*/irq.h %endif +%if %{with_firmware} +make INSTALL_FW_PATH=$RPM_BUILD_ROOT/lib/firmware firmware_install +%endif + %if %{with_bootwrapper} make DESTDIR=$RPM_BUILD_ROOT bootwrapper_install WRAPPER_OBJDIR=%{_libdir}/kernel-wrapper WRAPPER_DTSDIR=%{_libdir}/kernel-wrapper/dts %endif @@ -1690,6 +1706,12 @@ fi /usr/include/* %endif +%if %{with_firmware} +%files firmware +%defattr(-,root,root) +/lib/firmware/* +%endif + %if %{with_bootwrapper} %files bootwrapper %defattr(-,root,root) -- dwmw2

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[PATCH] ia64: export account_system_vtime
by Doug Chapman 30 Jun '08

30 Jun '08

This has been pushed and ACKed upstream on the linux-ia64 list. If possible I would like to get this pulled into Fedora now since it breaks Fedora ia64 kernel builds. thanks, - Doug ---------------------------- The symbol account_system_vtime is used by the kvm module but not exported. This breaks building with CONFIG_VIRT_CPU_ACCOUNTING and CONFIG_KVM=m. Signed-off-by: Doug Chapman <doug.chapman(a)hp.com> Acked-by: Hidetoshi Seto <seto.hidetoshi(a)jp.fujitsu.com> --- diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 8c73643..aad1b7b 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -117,6 +117,7 @@ void account_system_vtime(struct task_struct *tsk) local_irq_restore(flags); } +EXPORT_SYMBOL_GPL(account_system_vtime); /* * Called from the timer interrupt handler to charge accumulated user time

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kernel module options for cpufreq
by Richard Hughes 30 Jun '08

30 Jun '08

At the moment we set: # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=m CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=m CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m This is not ideal from a power-saving point of view. In an ideal world we would: * remove CONFIG_CPU_FREQ_GOV_CONSERVATIVE -- ondemand does a better job on all workloads * remove CONFIG_CPU_FREQ_GOV_USERSPACE -- we have nothing in userspace that needs this sort of control, and if we did, the latency would be horrible * remove CONFIG_CPU_FREQ_GOV_POWERSAVE -- ondemand automatically throttles down to lowest, and is just a hardcoded state * compile into the kernel CONFIG_CPU_FREQ_GOV_ONDEMAND -- we really want to be running this on all systems that support it * set ONDEMAND or PERFORMANCE to default as USERSPACE is just changed to something else by cpuspeed. You really don't want to be using USERSPACE at all. Matthew Garrett and I are working on a latency profile for power management, and having all these modules potentially loaded is bad. Comments? Richard.

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by Marcellina vetter 29 Jun '08

29 Jun '08

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silence sonde
by Zelko Avola 28 Jun '08

28 Jun '08

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revisit: turning some of the "always used" modules to built-in
by Arjan van de Ven 27 Jun '08

27 Jun '08

A few weeks ago the discussion about considering making some of the things in the fedora kernel not-a-module came up, but then died out. I'd like to revisit that discussion with a very specific proposal of things to turn into built-in. For me, there are 3 key reasons to make certain things not-a-module: 1) Built-in code is easier to debug/diagnose. This may sound weird, but really, things inside the vmlinux allow for much better automated bug diagnostics/analysis. ( and the www.kerneloops.org site uses these, but can only do the more advanced automatic analysis on the built-in oopses) 2) Built-in code tends to be smaller and faster; there is a space and TLB overhead associated with modules (several datastructures get rounded up to 4K boundaries, and modules are vmalloc'd which has TLB overhead) 3) A system with key functionality not-in-the-vmlinux is more fragile if something goes wrong With this in mind, I came up with the list below, I've split it into 4 categories. I would like to ask feedback on this list, with the goal of getting these changes made to fedora 10 asap to then get a wider audience input to see if anything breaks. Category 1: Always loaded anyway -------------------------------- Rationale: Since we load these always anyway, why bother making it modules - ata_generic, pata_acpi - libata - sg, sd_mod, scsi_mod - ext3, jbd, mbcache Category 2: Always loaded in default install -------------------------------------------- Rationale: yes you can turn off your firewall.. but nobody should do that. The others are default-loaded as well - ip_tables, iptable_filter - ip6_tables, ip6table_filter - dm_mod - ipv6 - battery, ac, button, video, output Category 3: popular/very common and makes the system more robust ---------------------------------------------------------------- Rationale: having these built in makes the system more robust, also in case of failure - ahci (default storage for all new systems; means that there the system always has the / device driver) - ehci_hcd (means you have a USB keyboard early) - cpufreq_ondemand (means the cpu can slow down for power/thermal) - acpi_cpufreq (means the cpu can slow down for power/thermal) Category 4: VERY popular ------------------------ Rationale: pretty much always loaded in default installs - snd_seq_dummy, snd_seq, snd_seq_device, snd_pcm, snd_timer, snd_page_alloc, snd

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(no subject)
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27 Jun '08

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Earth tremors in China is going on
by jvolxzn＠bugun.com.tr 26 Jun '08

26 Jun '08

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1 0

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24 Jun '08

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23 Jun '08

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kernel June 2008