kernel November 2011

kernel@lists.fedoraproject.org

15 participants
12 discussions

fedora 14 kernel performance with ip forwarding workload
by Jesse Brandeburg 04 Jun '15

04 Jun '15

The other day I was running the stock fedora kernel on my ip forwarding setup, to see what the performance was, and the performance wasn't very good. system is S5520HC dual socket 2.93GHz Xeon 5570 (Nehalem) with 3 quad port 82580 adapters (12 ports). Traffic is bidirectional 64 byte packets being forwarded and received on each port, basically port to port routing. I am only using 12 flows currently. The driver is igb, and I am using an affinity script that lines up each pair of ports that are forwarding traffic into optimal configurations for cache locality. I am also disabling remote_node_defrag_ratio to stop cross node traffic. With the fedora default kernel from F14 it appears that CONFIG_NETFILTER=y means that I cannot unload all of netfilter even if I stop iptables service. perf showed netfilter being prominent, and removing it gives me much higher throughput. Is there a reason CONFIG_NETFILTER=y ? Isn't it a good thing to be able to disable netfilter if you want to? Jesse

5 9

[PATCHSET] utrace for 3.1 kernel
by Oleg Nesterov 07 Feb '12

07 Feb '12

Hello. utrace patches for 3.1 kernel. Untested, will try to do some tests tomorrow. I do not want to spam you all and the lists, please look at git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc.git utrace-3.1 Oleg Nesterov (29): utrace: add utrace_init_task/utrace_free_task calls tracehooks: add utrace hooks tracehooks: reintroduce tracehook_consider_fatal_signal() add utrace hooks into sig_ignored() and recalc_sigpending() restore the EXEC/EXIT/CLONE utrace hooks utrace: utrace_report_death() can use task_utrace_struct() restore the DEATH/REAP utrace hooks utrace: remove jobctl bits ptrace: take ->siglock around s/TRACED/RUNNING/ introduce wake_up_quiescent() introduce ptrace_signal_wake_up() wait_task_inactive: treat task->state and match_state as bitmasks introduce TASK_UTRACED state utrace: use TASK_UTRACED instead of TASK_TRACED reintroduce tracehook_finish_jctl() as utrace_end_stop() teach wake_up_quiescent() to do "selective" wake_up ptrace_stop: do not assume the task is running after wake_up_quiescent() get_signal_to_deliver: restore/restructure utrace/ptrace signal reporting utrace_get_signal: s/JOBCTL_STOP_PENDING/JOBCTL_PENDING_MASK/ introduce ptrace_set_syscall_trace() introduce PT_SYSCALL_TRACE flag utrace: don't clear TIF_SYSCALL_TRACE if it is needed by ptrace introduce task_utrace_lock/task_utrace_unlock teach ptrace_set_syscall_trace() to play well with utrace introduce PT_SINGLE_STEP and PT_SINGLE_BLOCK utrace: finish_resume_report: don't do user_xxx_step() if ptrace_wants_step() ptrace: shift user_*_step() from ptrace_resume() to ptrace_stop() ptrace_disable: no need to disable stepping ptrace_report_syscall: check TIF_SYSCALL_EMU Roland McGrath (1): utrace core Documentation/DocBook/Makefile | 2 +- Documentation/DocBook/utrace.tmpl | 589 +++++++++ arch/s390/kernel/traps.c | 4 +- arch/x86/kernel/ptrace.c | 1 - fs/exec.c | 5 +- fs/proc/array.c | 14 +- include/linux/ptrace.h | 7 + include/linux/sched.h | 25 +- include/linux/signal.h | 2 + include/linux/tracehook.h | 53 +- include/linux/utrace.h | 773 ++++++++++++ init/Kconfig | 9 + kernel/Makefile | 1 + kernel/exit.c | 5 + kernel/fork.c | 9 + kernel/ptrace.c | 57 +- kernel/sched.c | 2 +- kernel/signal.c | 97 ++- kernel/utrace.c | 2461 +++++++++++++++++++++++++++++++++++++ 19 files changed, 4062 insertions(+), 54 deletions(-) create mode 100644 Documentation/DocBook/utrace.tmpl create mode 100644 include/linux/utrace.h create mode 100644 kernel/utrace.c

4 39

[RFC PATCH] Add modules-extra subpackage
by Josh Boyer 02 Dec '11

02 Dec '11

Below is the first swag at a kernel-modules-extra package. It seems to do the proper thing, and move the listed modules to the /lib/modules/`uname -r`/extra/ directory[1], and then package those up into a kernel-<flavor>-modules-extra subpackage. I have a scratch build with this change here: http://koji.fedoraproject.org/koji/taskinfo?taskID=3523738 The macros the define the kernel-modules-extra subpackage and %files sections look nasty, but they are required for when we build multiple kernel flavors (e.g. PAE, debug, etc) so we get the proper per-flavor subpackage. The mod-extra.list file is the configuration file for which modules should be put into the modules-extra subpackage. This isn't a fully comprehensive list of exactly what will wind up in the subpackage. Instead, it is a somewhat higher level list and the code will go through and also put anything with a dependency[2] on one of these modules into the subpackage as well (e.g. listing wimax.ko will also get wimax/i2400m/i2400m.ko pulled in). Comments welcome. josh [1] The extra/ directory already exists and is set aside for "out of tree" modules, so we're slightly overriding the intention by sticking modules that are built in-tree there. However, we do consider these modules _extra_ and it seemed silly to create yet another directory for this purpose. [2] The dependency stuff is a poor-man's depmod, which isn't run until after the kernel package is installed. It's a best effort really, not 100% comprehensive but it seems to catch most things. We could run depmod here and then use those results to catch everything but I wasn't sure if that was desired or required. --- kernel.spec | 69 ++++++++++++++++++++++- mod-extra.list | 170 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 238 insertions(+), 1 deletions(-) create mode 100644 mod-extra.list diff --git a/kernel.spec b/kernel.spec index b72afb3..9eadbb1 100644 --- a/kernel.spec +++ b/kernel.spec @@ -548,6 +548,7 @@ Source1: compat-wireless-%{cwversion}.tar.bz2 Source11: genkey Source14: find-provides Source15: merge.pl +Source16: mod-extra.list Source19: Makefile.release Source20: Makefile.config @@ -902,6 +903,24 @@ against the %{?2:%{2} }kernel package.\ %{nil} # +# This macro creates a kernel-<subpackage>-modules-extra package. +# %%kernel_modules-extra_package <subpackage> <pretty-name> +# +%define kernel_modules-extra_package() \ +%package %{?1:%{1}-}modules-extra\ +Summary: Extra kernel modules to match the %{?2:%{2} }kernel\ +Group: System Environment/Kernel\ +Provides: kernel%{?1:-%{1}}-modules-extra-%{_target_cpu} = %{version}-%{release}\ +Provides: kernel-modules-extra-%{_target_cpu} = %{version}-%{release}%{?1:.%{1}}\ +Provides: kernel-modules-extra = %{version}-%{release}%{?1:.%{1}}\ +Provides: kernel-modules-extra-uname-r = %{KVERREL}%{?1:.%{1}}\ +Requires: kernel%{?1:-%{1}}-%{_target_cpu} = %{version}-%{release}%{?1:.%{1}}\ +AutoReqProv: no\ +%description -n kernel%{?variant}%{?1:-%{1}}-modules-extra\ +This package provides less commonly used kernel modules for the %{?2:%{2} }kernel package.\ +%{nil} + +# # This macro creates a kernel-<subpackage> and its -devel and -debuginfo too. # %%define variant_summary The Linux kernel compiled for <configuration> # %%kernel_variant_package [-n <pretty-name>] <subpackage> @@ -912,12 +931,14 @@ Summary: %{variant_summary}\ Group: System Environment/Kernel\ %kernel_reqprovconf\ %{expand:%%kernel_devel_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\ +%{expand:%%kernel_modules-extra_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\ %{expand:%%kernel_debuginfo_package %1}\ %{nil} # First the auxiliary packages of the main kernel package. %kernel_devel_package +%kernel_modules-extra_package %kernel_debuginfo_package @@ -1645,6 +1666,50 @@ BuildKernel() { rm -f modinfo modnames + pushd $RPM_BUILD_ROOT/lib/modules/$KernelVer/ + rm -rf modnames + find . -name "*.ko" -type f > modnames + # Look through all of the modules, and throw any that have a dependency in + # our list into the list as well. + rm -rf dep.list dep2.list + cp %{SOURCE16} . + for dep in `cat modnames` + do + depends=`modinfo $dep | grep depends| cut -f2 -d":" | sed -e 's/^[ \t]*//'` + [ -z "$depends" ] && continue; + for mod in `echo $depends | sed -e 's/,/ /g'` + do + match=`grep "^$mod.ko" mod-extra.list` ||: + if [ -z "$match" ] + then + continue + else + echo $dep >> dep.list + fi + done + done + + for mod in `cat mod-extra.list` + do + # get the path for the module + modpath=`grep /$mod modnames` + [ -z "$modpath" ] && continue; + echo $modpath >> dep.list + done + + sort -u dep.list > dep2.list + + # now move the modules into the extra/ directory + for mod in `cat dep2.list` + do + newpath=`dirname $mod | sed -e 's/kernel\//extra\//'` + mkdir -p $newpath + mv $mod $newpath + done + + rm modnames mod-extra.list dep.list dep2.list + popd + # remove files that will be auto generated by depmod at rpm -i time for i in alias alias.bin builtin.bin ccwmap dep dep.bin ieee1394map inputmap isapnpmap ofmap pcimap seriomap symbols symbols.bin usbmap do @@ -2061,7 +2126,6 @@ fi /lib/modules/%{KVERREL}%{?2:.%{2}}/kernel\ /lib/modules/%{KVERREL}%{?2:.%{2}}/build\ /lib/modules/%{KVERREL}%{?2:.%{2}}/source\ -/lib/modules/%{KVERREL}%{?2:.%{2}}/extra\ /lib/modules/%{KVERREL}%{?2:.%{2}}/updates\ %if %{with_backports}\ /lib/modules/%{KVERREL}%{?2:.%{2}}/backports\ @@ -2075,6 +2139,9 @@ fi %{expand:%%files %{?2:%{2}-}devel}\ %defattr(-,root,root)\ /usr/src/kernels/%{KVERREL}%{?2:.%{2}}\ +%{expand:%%files %{?2:%{2}-}modules-extra}\ +%defattr(-,root,root)\ +/lib/modules/%{KVERREL}%{?2:.%{2}}/extra\ %if %{with_debuginfo}\ %ifnarch noarch\ %{expand:%%files -f debuginfo%{?2}.list %{?2:%{2}-}debuginfo}\ diff --git a/mod-extra.list b/mod-extra.list new file mode 100644 index 0000000..faec1d8 --- /dev/null +++ b/mod-extra.list @@ -0,0 +1,170 @@ +aer_inject.ko +yenta_socket.ko +tcp_bic.ko +tcp_westwood.ko +tcp_htcp.ko +tcp_highspeed.ko +tcp_hybla.ko +tcp_vegas.ko +tcp_scalable.ko +tcp_lp.ko +tcp_veno.ko +tcp_yeah.ko +tcp_illinois.ko +dccp_diag.ko +dccp_ipv4.ko +dccp_ipv6.ko +dccp.ko +dccp_probe.ko +sctp.ko +sctp_probe.ko +rds.ko +rds_rdma.ko +rds_tcp.ko +atm.ko +br2684.ko +clip.ko +lec.ko +pppoatm.ko +l2tp_core.ko +l2tp_debugfs.ko +l2tp_eth.ko +l2tp_ip.ko +l2tp_netlink.ko +l2tp_ppp.ko +8021q.ko +llc.ko +ipx.ko +appletalk.ko +ipddp.ko +wanrouter.ko +phonet.ko +pn_pep.ko +af_802154.ko +ieee802154.ko +sch_atm.ko +sch_cbq.ko +sch_choke.ko +sch_drr.ko +sch_dsmark.ko +sch_gred.ko +sch_hfsc.ko +sch_htb.ko +sch_ingress.ko +sch_mqprio.ko +sch_multiq.ko +sch_netem.ko +sch_prio.ko +sch_qfq.ko +sch_red.ko +sch_sfb.ko +sch_sfq.ko +sch_tbf.ko +sch_teql.ko +ax25.ko +netrom.ko +rose.ko +6pack.ko +baycom_par.ko +baycom_ser_fdx.ko +baycom_ser_hdx.ko +bpqether.ko +hdlcdrv.ko +mkiss.ko +yam.ko +can.ko +can-raw.ko +can-bcm.ko +can-dev.ko +slcan.ko +vcan.ko +c_can.ko +c_can_platform.ko +ems_pci.ko +kvaser_pci.ko +plx_pci.ko +sja1000.ko +sja1000_platform.ko +softing_cs.ko +softing.ko +ems_usb.ko +esd_usb2.ko +wimax.ko +nfc.ko +nci.ko +mtd.ko +mptbase.ko +mptctl.ko +mptfc.ko +i2400m.ko +hisax.ko +hysdn.ko +isdn.ko +mISDN_core.ko +mISDN_dsp.ko +capi.ko +dss1_divert.ko +bas_gigaset.ko +gigaset.ko +avm_cs.ko +b1.ko +diva_idi.ko +divas.ko +avmfritz.ko +hfcpci.ko +hfcmulti.ko +netjet.ko +w6692.ko +avma1_cs.ko +elsa_cs.ko +hfc4s8s_l1.ko +joydev.ko +a3d.ko +adi.ko +analog.ko +cobra.ko +db9.ko +gamecon.ko +gf2k.ko +grip.ko +grip_mp.ko +guillemot.ko +iforce.ko +interact.ko +joydump.ko +magellan.ko +sidewinder.ko +spaceball.ko +spaceorb.ko +stinger.ko +tmdc.ko +turbografx.ko +twidjoy.ko +walkera0701.ko +warrior.ko +xpad.ko +zhenhua.ko +trancevibrator.ko +umc.ko +uwb.ko +whci.ko +hwa-rc.ko +uio.ko +uio_aec.ko +uio_pci_generic.ko +jfs.ko +gfs2.ko +ocfs2.ko +ocfs2_stackglue.ko +ocfs2_dlm.ko +cuse.ko +affs.ko +befs.ko +jffs2.ko +ubifs.ko +sysv.ko +ufs.ko +ncpfs.ko +coda.ko +9p.ko +9pnet.ko -- 1.7.7.1

3 4

Fedora 16: elantech patch
by JJ Ding 30 Nov '11

30 Nov '11

Hi Josh, I just updated one of my work machine to kernel-3.1.2-1.fc16.i386 and touchpad stopped working. I checked and realized that you applied my elantech patches upstreamed for 3.2. But since you backported there is one more fix you missed, which is also upstreamed now. It's commit 3940d6185a982a970ff562e085caccbdd62f40bb in Linus' latest tree. Please also take this patch for Fedora 16's kernel, thanks a lot. br, jj

2 1

[PATCH 0/33] utrace for 3.2 kernel
by Oleg Nesterov 21 Nov '11

21 Nov '11

4 38

Proposal to add build of kernel-backports package to kernel.spec
by John W. Linville 16 Nov '11

16 Nov '11

So, I have a little proposal for the Fedora kernel SRPM... TL;DR -- I want to create a kernel-backports package that includes the output of building compat-wireless against the corresponding kernel. A version of this package will automatically be built for every kernel RPM built. Why? Hardware enablement is an endless treadmill. As Fedora has matured, the delta between current Fedora kernels and current upstream kernels has tended to widen (at least for older releases e.g. F14). This can cause problems both for users needing cutting-edge hardware support and for developers trying to diagnose problems in Fedora kernels that may have already been fixed upstream. Creating a seperate package allows both of the above situations to be addressed while allowing "normal" users to use the base kernel without unnecessary risk of destabilization. Integrating the build of that package with the kernel build ensures that every new kernel automatically has a kernel-backports package built without need of human intervention or creative scripting. How does this proposal look? I have a scratch F14 kernel build available here: http://koji.fedoraproject.org/koji/taskinfo?taskID=3404605 You will also need an updated module-init-tools package: http://koji.fedoraproject.org/koji/taskinfo?taskID=3404725 When you install the kernel-backports package, modinfo for an affected driver (e.g. iwlagn) will show that the driver chosen by depmod will change. Removing kernel-backports will point you back to the version from the base kernel. What is in the kernel-backports package? At present, a stable release of the compat-wireless project would be included in the kernel-backports package: http://www.linuxwireless.org/en/users/Download The compat-wireless project contains backports of sources from current upstream kernels. These are not out-of-tree drivers in the traditional sense. These drivers are in-tree -- just a later version of the tree. As such, the compat-wireless sources follow the same license as the upstream Linux kernel (i.e. GPLv2). The compat-* project is expected/intended to expand to include wired networking drivers and more in the future. As that happens, those new compat-* drivers will be included in the kernel-backports package as well. Isn't this just a big kmod package? No, or at least not exactly. Existing kmod package standards require a separate kmod build for every kernel build. Most (or all?) of them require complex versioning to distinquish between versions of the kmod package and versions of the target kernel. They are a nightmare to maintain. Worse, they require multiple kmod packages for multiple drivers, multiplying the maintenance burden. This proposal minimizes the maintenance required while maximizing the coverage of driver upates. A single compat-wireless package update will suffice to update a full suite of drivers all at once. Isn't this too "bleeding edge" for non-rawhide Fedora? Perhaps so, at least for many people. That is the advantage of having a separate kernel-backports package. Those that don't want to use the cutting-edge hardware support will simply not install the package. Those who want or need that support will have it easily available. Why not just use Rawhide? Rawhide might have even more "bleeding" edge hardware support than the kernel-backports package would get. Plus, Rawhide kernels will have less mature core kernel changes as well. Keeping a stable release kernel with a kernel-backports package offers an intermediate step towards cutting-edge hardware support while maintaining a stable core kernel. Who will maintain it? For now, I will. When I am old and gone, my successor will only have to update the compat-wireless bits once per upstream kernel release and perhaps add a few Fedora-specific compat-wireless patches as things are backported to the Fedora base kernel that conflict with the compat layer in compat-wireless. Can we turn it off easily? Yes. The spec file changes are all bracketed by a "with_backports" symbol already. In fact, with_backports will have to be turned-off in Rawhide and in any other Fedora releases where the kernel version is the same or newer than the latest compat-wireless stable release. What do the changes look like? I'll paste the kernel.spec file changes for F14 below. I'll attach the required module-init-tools.spec file patch to this email for reference as well. Conclusion So, there is my proposal. What are the objections? Once any major objections are addressed, I'll pursue any required Fedora project management items required (e.g. a Feature page). John --- diff --git a/kernel.spec b/kernel.spec index cc12bce..b96c348 100644 --- a/kernel.spec +++ b/kernel.spec @@ -25,6 +25,7 @@ Summary: The Linux kernel # # % define buildid .local ################################################################### +%define buildid .1.compat # The buildid can also be specified on the rpmbuild command line # by adding --define="buildid .whatever". If both the specfile and @@ -147,6 +148,10 @@ Summary: The Linux kernel # should we do C=1 builds with sparse %define with_sparse %{?_with_sparse: 1} %{?!_with_sparse: 0} +# Include driver backports (e.g. compat-wireless) in the kernel build. +# This builds a separate kernel-backports package. +%define with_backports %{?_with_backports: 1} %{?!_with_backports: 0} + # Set debugbuildsenabled to 1 for production (build separate debug kernels) # and 0 for rawhide (all kernels are debug kernels). # See also 'make debug' and 'make release'. @@ -531,6 +536,9 @@ BuildRequires: rpm-build >= 4.4.2.1-4 %endif Source0: ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-%{kversion}.tar.bz2 +%if %{with_backports} +Source1: compat-wireless-3.0-2.tar.bz2 +%endif Source11: genkey Source14: find-provides @@ -864,6 +872,10 @@ Patch14050: x86-PCI-don-t-use-native-Broadcom-CNB20LE-driver-whe.patch # RHBZ #648571 Patch14051: modules-Fix-module_bug_list-list-corruption-race.patch +%if %{with_backports} +Patch20000: compat-wireless-vzalloc.patch +%endif + %endif BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root @@ -1042,6 +1054,37 @@ It should only be installed when trying to gather additional information on kernel bugs, as some of these options impact performance noticably. +%if %{with_backports} + +# +# This macro creates a kernel-backports-<subpackage>. +# %%kernel_variant_backports_package <condition> <subpackage> +# +%define kernel_variant_backports_package() \ +%if %{1}\ +%package %{?2:%{2}-}backports\ +Summary: Drivers backported from later versions of the Linux kernel\ +Group: System Environment/Kernel\ +License: GPLv2\ +Requires: kernel = %{rpmversion}-%{pkg_release}\ +Requires(post): module-init-tools >= 3.11.1-6.1.compat\ +%description %{?2:%{2}-}backports\ +This package provies pre-compiled drivers backported from later versions\ +of the Linux kernel. This package contains drivers from the upstream\ +Linux kernel exclusively. Out-of-tree drivers are not provided.\ +This version matches the kernel%{?2:-%{2}} package.\ +%{nil}\ +%endif + +%kernel_variant_backports_package %{with_up} +%kernel_variant_backports_package %{with_smp} smp +%kernel_variant_backports_package %{with_debug} debug +%kernel_variant_backports_package %{with_pae} PAE +%kernel_variant_backports_package %{with_pae_debug} PAEdebug + +%endif + + %prep # do a few sanity-checks for --with *only builds %if %{with_baseonly} @@ -1670,6 +1713,16 @@ find . $ -name "*.orig" -o -name "*~" $ -exec rm -f {} \; >/dev/null cd .. +%if %{with_backports} + +# Extract the compat-wireless bits +%setup -q -n kernel-%{kversion}%{?dist} -T -D -a 1 + +cd compat-wireless-3.0-2 +%patch20000 -p1 + +%endif + ### ### build ### @@ -1787,6 +1840,9 @@ BuildKernel() { # dirs for additional modules per module-init-tools, kbuild/modules.txt mkdir -p $RPM_BUILD_ROOT/lib/modules/$KernelVer/extra mkdir -p $RPM_BUILD_ROOT/lib/modules/$KernelVer/updates +%if %{with_backports} + mkdir -p $RPM_BUILD_ROOT/lib/modules/$KernelVer/backports +%endif # first copy everything cp --parents `find -type f -name "Makefile*" -o -name "Kconfig*"` $RPM_BUILD_ROOT/lib/modules/$KernelVer/build cp Module.symvers $RPM_BUILD_ROOT/lib/modules/$KernelVer/build @@ -1886,6 +1942,23 @@ BuildKernel() { mkdir -p $RPM_BUILD_ROOT/usr/src/kernels mv $RPM_BUILD_ROOT/lib/modules/$KernelVer/build $RPM_BUILD_ROOT/$DevelDir ln -sf ../../..$DevelDir $RPM_BUILD_ROOT/lib/modules/$KernelVer/build + +%if %{with_backports} + + cd ../compat-wireless-3.0-2/ + make clean + + make KLIB_BUILD=../linux-%{kversion}.%{_target_cpu} \ + KMODPATH_ARG="INSTALL_MOD_PATH=$RPM_BUILD_ROOT" \ + KMODDIR="backports" install-modules + + # mark modules executable so that strip-to-file can strip them + find $RPM_BUILD_ROOT/lib/modules/$KernelVer/backports -name "*.ko" \ + -type f | xargs --no-run-if-empty chmod u+x + + cd - + +%endif } ### @@ -2103,6 +2176,54 @@ fi}\ %kernel_variant_post -v PAEdebug -r (kernel|kernel-smp) %kernel_variant_preun PAEdebug +%if %{with_backports} + +# +# This macro defines a depmod operation for install/remove of backports. +# %%kernel_variant_backports_depmod [-v <subpackage>] +# +%define kernel_variant_backports_depmod(v:) \ +%{expand:\ +/sbin/depmod -ae -F /boot/System.map-%{KVERREL}%{?-v:.%{-v*}} || exit $?\ +}\ +%{nil} + +# +# This macro defines a %%post script for a kernel backports package. +# %%kernel_variant_backports_post <condition> <subpackage> +# +%define kernel_variant_backports_post() \ +%if %{1}\ +%{expand:%%post %{?2:%{2}-}backports}\ +%{expand:%%kernel_variant_backports_depmod %{?2:-v %{2}}}\ +%endif\ +%{nil} + +# +# This macro defines a %%postun script for a kernel backports package. +# %%kernel_variant_backports_postun <condition> <subpackage> +# +%define kernel_variant_backports_postun() \ +%if %{1}\ +%{expand:%%postun %{?2:%{2}-}backports}\ +%{expand:%%kernel_variant_backports_depmod %{?2:-v %{2}}}\ +%endif\ +%{nil} + +%kernel_variant_backports_post %{with_up} +%kernel_variant_backports_post %{with_smp} smp +%kernel_variant_backports_post %{with_debug} debug +%kernel_variant_backports_post %{with_pae} PAE +%kernel_variant_backports_post %{with_pae_debug} PAEdebug + +%kernel_variant_backports_postun %{with_up} +%kernel_variant_backports_postun %{with_smp} smp +%kernel_variant_backports_postun %{with_debug} debug +%kernel_variant_backports_postun %{with_pae} PAE +%kernel_variant_backports_postun %{with_pae_debug} PAEdebug + +%endif + if [ -x /sbin/ldconfig ] then /sbin/ldconfig -X || exit $? @@ -2209,10 +2330,39 @@ fi %kernel_variant_files %{with_pae} PAE %kernel_variant_files %{with_pae_debug} PAEdebug + +%if %{with_backports} + +# +# This macro defines the %%files sections for a kernel-backports +# package. +# %%kernel_variant_backports_files <condition> <subpackage> +# +%define kernel_variant_backports_files() \ +%if %{1}\ +%{expand:%%files %{?2:%{2}-}backports}\ +%defattr(-,root,root)\ +/lib/modules/%{KVERREL}%{?2:.%{2}}/backports\ +%endif\ +%{nil} + +%kernel_variant_backports_files %{with_up} +%kernel_variant_backports_files %{with_smp} smp +%kernel_variant_backports_files %{with_debug} debug +%kernel_variant_backports_files %{with_pae} PAE +%kernel_variant_backports_files %{with_pae_debug} PAEdebug + +%endif + + # plz don't put in a version string unless you're going to tag # and build. %changelog +* Tue Oct 4 2011 John W. Linville <linville(a)redhat.com> +- Add infrastructure for kernel-backports package +- Include compat-wireless project in package above + * Mon Sep 12 2011 Josh Boyer <jwboyer(a)redhat.com> - Backport 5336377d to fix RHBZ #648571 -- John W. Linville The water won't run clean until you get linville(a)redhat.com the pigs out of the creek.

6 18

Wacom Bluetooth patch
by Bastien Nocera 14 Nov '11

14 Nov '11

Heya, As I'm doing some work on the Wacom panel for GNOME's control-center, it would be really helpful if I didn't need to add this patch to my kernel builds to make my only Wacom tablet work :) http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h… E-mail discussion: http://thread.gmane.org/gmane.linux.kernel.input/21660/focus=21669 Can I haz patch included for the next F16 update? Cheers

2 3

Exclude plymouth from Kernel?
by Frank Murphy 14 Nov '11

14 Nov '11

How can I prevent plymouth from loading. Have tried *dracut -o blacklist plymouth* on it's own How can I set a test machine up so, yum update kernel doesn't build plymouth in. Without havin'g to manually rebuild each one. -- Regards, Frank Murphy UTF_8 Encoded Friend of fedoraproject.org

3 2

Re: fedora kernel question (and patch?)
by Brendan Jones 08 Nov '11

08 Nov '11

> I saw a bug comment go flying by pointing to this same patch, but I > can't recall what bug it was. Did you point to this in a bug, if so > which one? > > Since you're applying it locally, I'm wondering if you can let us know > if it solves that particular bug. > > josh Yeah I did, it was this one https://bugzilla.redhat.com/show_bug.cgi?id=527813 The reason I'm getting excited is I think there are a few issues at play here which are confusing us in userland. There was a problem with the 5 series laptops which caused the same problem both in linux and windows, whereas I think this particular patch is EHCI related and not hardware specific. More than happy/capable to test this... unfortunately just moved to Europe and my container is in UK customs as we speak - give me a week or so. More than happy to pass on any builds you do to the LAD/LAU/CCRMA guys. I guess what it comes down to is USB pro-audio is broken on linux laptops. This gives me hope. Will keep you posted. thanks Brendan

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rpmbuild of a f16 kernel drops core.
by Steve Dickson 08 Nov '11

08 Nov '11

Hey, I did the following that cause depmod.sh to drop core $ fedpkg --dist 16 srpm $ rpm -ihv kernel-3.1.0-10.idmap.fc17.src.rpm $ rpmbuild -bb --without tools --with firmware --target x86_64 kernel.spec which cause the following error: /home/src/f16/build/BUILD/kernel-3.1.fc15/linux-3.1.x86_64/scripts/depmod.sh: line 43: 10982 Segmentation fault (core dumped) "$DEPMOD" "$@" "$KERNELRELEASE" make: *** [_modinst_post] Error 139 error: Bad exit status from /var/tmp/rpm-tmp.JhZ0CH (%build) The entire log is at: http://people.redhat.com/steved/.tmp/build-coredump A known problem? steved.

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kernel November 2011