kernel June 2014

kernel@lists.fedoraproject.org

20 participants
22 discussions

fedora 14 kernel performance with ip forwarding workload
by Jesse Brandeburg 05 Jun '15

05 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

debug_dma_assert_idle - snd_hda_intel - cpu touching an active dma mapped cacheline
by poma 18 Sep '14

18 Sep '14

Sound whispers, WARNING: CPU: 3 PID: 900 at lib/dma-debug.c:593 debug_dma_assert_idle+0x159/0x1d0() snd_hda_intel 0000:00:07.0: DMA-API: cpu touching an active dma mapped cacheline [cln=0x03014000] CPU: 3 PID: 900 Comm: chronyd Not tainted 3.15.0-0.rc1.git1.1.fc21.i686 #1 Call Trace: [<c0ae256d>] dump_stack+0x48/0x60 [<c0454402>] warn_slowpath_common+0x82/0xa0 [<c0750b69>] ? debug_dma_assert_idle+0x159/0x1d0 [<c0750b69>] ? debug_dma_assert_idle+0x159/0x1d0 [<c045445e>] warn_slowpath_fmt+0x3e/0x60 [<c0750b69>] debug_dma_assert_idle+0x159/0x1d0 [<c05860b9>] ? anon_vma_prepare+0x29/0x140 [<c057a4ee>] do_wp_page+0xce/0x890 [<c0500045>] ? auditsc_get_stamp+0x45/0x70 [<c057caf2>] handle_mm_fault+0x662/0xb70 [<c0500045>] ? auditsc_get_stamp+0x45/0x70 [<c0aee507>] __do_page_fault+0x1a7/0x5d0 [<c040ace8>] ? sched_clock+0x8/0x10 [<c040ace8>] ? sched_clock+0x8/0x10 [<c04ab036>] ? lock_release_holdtime.part.28+0x96/0xf0 [<c0aee930>] ? __do_page_fault+0x5d0/0x5d0 [<c0aee94a>] do_page_fault+0x1a/0x20 [<c0aeb344>] error_code+0x6c/0x74 [<c07334b6>] ? __put_user_4+0x1a/0x24 [<c048d280>] ? schedule_tail+0x60/0xa0 [<c0af3746>] ret_from_fork+0x6/0x20 ---[ end trace d31d73481e988403 ]--- Mapped at: [<c074ec12>] debug_dma_alloc_coherent+0x22/0x70 [<f812de90>] snd_dma_alloc_pages+0x170/0x260 [snd_pcm] [<f812dfe2>] snd_dma_alloc_pages_fallback+0x62/0x90 [snd_pcm] [<f812e3b0>] snd_malloc_sgbuf_pages+0xf0/0x211 [snd_pcm] [<f812df23>] snd_dma_alloc_pages+0x203/0x260 [snd_pcm] https://bugzilla.redhat.com/show_bug.cgi?id=1087565 poma

3 11

[PATCH] Bump CMA to 64M by default as found in 3.15 multi_v7_defconfig
by Nicolas Chauvet 13 Aug '14

13 Aug '14

--- config-arm-generic | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/config-arm-generic b/config-arm-generic index c1bc653..27df69b 100644 --- a/config-arm-generic +++ b/config-arm-generic @@ -150,7 +150,7 @@ CONFIG_THERMAL_GOV_USER_SPACE=y CONFIG_CMA=y CONFIG_DMA_CMA=y # CONFIG_CMA_DEBUG is not set -CONFIG_CMA_SIZE_MBYTES=16 +CONFIG_CMA_SIZE_MBYTES=64 CONFIG_CMA_SIZE_SEL_MBYTES=y # CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set # CONFIG_CMA_SIZE_SEL_MIN is not set -- 1.7.2.1

2 3

Remove ppc32 support
by Josh Boyer 10 Jul '14

10 Jul '14

The powerpc secondary arch team has disabled all ppc32 builds in koji for F21 and beyond: https://lists.fedoraproject.org/pipermail/ppc/2014-May/002801.html There's little point in keeping support for ppc32 support in the kernel package when it will never be built. This also removes the -smp variant and with_smp* support, as that was only used on ppc32. --- Makefile.config | 12 +--- config-powerpc32-generic | 180 ----------------------------------------------- config-powerpc32-smp | 3 - filter-ppc.sh | 14 ---- kernel.spec | 72 +++---------------- 5 files changed, 10 insertions(+), 271 deletions(-) delete mode 100644 config-powerpc32-generic delete mode 100644 config-powerpc32-smp delete mode 100644 filter-ppc.sh diff --git a/Makefile.config b/Makefile.config index 3483968..63549f6 100644 --- a/Makefile.config +++ b/Makefile.config @@ -11,11 +11,10 @@ CONFIGFILES = \ $(CFG)-s390x.config \ $(CFG)-armv7hl.config $(CFG)-armv7hl-lpae.config \ $(CFG)-aarch64.config \ - $(CFG)-ppc.config $(CFG)-ppc-smp.config \ $(CFG)-ppc64.config $(CFG)-ppc64p7.config $(CFG)-ppc64-debug.config \ $(CFG)-ppc64le.config -PLATFORMS = x86 x86_64 powerpc powerpc32 powerpc64 s390x arm arm64 +PLATFORMS = x86 x86_64 powerpc powerpc64 s390x arm arm64 TEMPFILES = $(addprefix temp-, $(addsuffix -generic, $(PLATFORMS))) configs: $(CONFIGFILES) @@ -81,9 +80,6 @@ temp-powerpc-generic: config-powerpc-generic temp-generic temp-powerpc-debug-generic: config-powerpc-generic temp-debug-generic perl merge.pl $^ > $@ -temp-powerpc32-generic: config-powerpc32-generic temp-powerpc-generic - perl merge.pl $^ > $@ - temp-powerpc64-generic: config-powerpc64 temp-powerpc-generic perl merge.pl $^ > $@ @@ -134,9 +130,3 @@ $(CFG)-armv7hl-lpae.config: /dev/null temp-armv7-lpae $(CFG)-aarch64.config: /dev/null temp-arm64 perl merge.pl $^ arm64 > $@ - -$(CFG)-ppc.config: /dev/null temp-powerpc32-generic - perl merge.pl $^ powerpc > $@ - -$(CFG)-ppc-smp.config: config-powerpc32-smp temp-powerpc32-generic - perl merge.pl $^ powerpc > $@ diff --git a/config-powerpc32-generic b/config-powerpc32-generic deleted file mode 100644 index 10e02fb..0000000 --- a/config-powerpc32-generic +++ /dev/null @@ -1,180 +0,0 @@ -# CONFIG_SMP is not set -CONFIG_PPC32=y -# CONFIG_PPC64 is not set -# CONFIG_RTAS_PROC is not set -# CONFIG_PCMCIA_M8XX is not set -# CONFIG_HOTPLUG_PCI is not set -CONFIG_CPU_FREQ_PMAC=y -CONFIG_PPC_CHRP=y -CONFIG_PPC_PMAC=y -# CONFIG_PPC_MPC52xx is not set -CONFIG_PPC_PREP=y - -# CONFIG_PPC_MPC5200_SIMPLE is not set -# CONFIG_SATA_FSL is not set -# CONFIG_SATA_NV is not set - -# busted in .28git1 -# ERROR: "cacheable_memzero" [drivers/net/gianfar_driver.ko] undefined! -# CONFIG_GIANFAR is not set -# CONFIG_USB_EHCI_FSL is not set - -CONFIG_PMAC_APM_EMU=y -CONFIG_PMAC_BACKLIGHT=y - -CONFIG_HIGHMEM=y -# CONFIG_HIGHMEM_START_BOOL is not set -# CONFIG_LOWMEM_SIZE_BOOL is not set -# CONFIG_TASK_SIZE_BOOL is not set -# CONFIG_KERNEL_START_BOOL is not set -# CONFIG_PPC601_SYNC_FIX is not set -CONFIG_ADVANCED_OPTIONS=y -CONFIG_SCSI_MESH=m -CONFIG_SCSI_MESH_SYNC_RATE=5 -CONFIG_SCSI_MESH_RESET_DELAY_MS=4000 - -CONFIG_LBDAF=y - -CONFIG_SCSI_MAC53C94=m -CONFIG_ADB_CUDA=y -CONFIG_ADB_MACIO=y -CONFIG_INPUT_ADBHID=y -CONFIG_ADB_PMU_LED=y -CONFIG_ADB_PMU_LED_IDE=y - -CONFIG_PMAC_MEDIABAY=y -CONFIG_NET_VENDOR_APPLE=y -CONFIG_BMAC=m -CONFIG_MACE=m -# CONFIG_MACE_AAUI_PORT is not set -# CONFIG_MV643XX_ETH is not set -CONFIG_I2C_HYDRA=m -CONFIG_I2C_MPC=m -CONFIG_THERM_WINDTUNNEL=m -CONFIG_THERM_ADT746X=m -# CONFIG_ANSLCD is not set - -CONFIG_FB_PLATINUM=y -CONFIG_FB_VALKYRIE=y -CONFIG_FB_CT65550=y -# CONFIG_BDI_SWITCH is not set - -CONFIG_MAC_FLOPPY=m -# CONFIG_BLK_DEV_FD is not set - -CONFIG_FB_ATY128=y -CONFIG_FB_ATY=y -CONFIG_FB_MATROX=y -# CONFIG_KEXEC is not set - -# CONFIG_HVC_RTAS is not set - -# CONFIG_UDBG_RTAS_CONSOLE is not set -CONFIG_BRIQ_PANEL=m - -# CONFIG_ATA_PIIX is not set -# CONFIG_PATA_AMD is not set -# CONFIG_PATA_ATIIXP is not set -# CONFIG_PATA_MPC52xx is not set -# CONFIG_PATA_MPIIX is not set -# CONFIG_PATA_OLDPIIX is not set -# CONFIG_PATA_OPTI is not set -# CONFIG_PATA_SERVERWORKS is not set - -# CONFIG_SERIAL_MPC52xx is not set -# CONFIG_MPC5200_WDT is not set -CONFIG_8xxx_WDT=m -CONFIG_GEF_WDT=m - -# CONFIG_PPC_MPC5200_BUGFIX is not set -# CONFIG_NET_VENDOR_FREESCALE is not set -#CHECK: This may later become a tristate. -CONFIG_MDIO_GPIO=m - -CONFIG_SERIAL_OF_PLATFORM=y -CONFIG_DEBUG_STACKOVERFLOW=y - -# CONFIG_EMBEDDED6xx is not set - -# CONFIG_BLK_DEV_PLATFORM is not set -# CONFIG_BLK_DEV_4DRIVES is not set -# CONFIG_BLK_DEV_ALI14XX is not set -# CONFIG_BLK_DEV_DTC2278 is not set -# CONFIG_BLK_DEV_HT6560B is not set -# CONFIG_BLK_DEV_QD65XX is not set -# CONFIG_BLK_DEV_UMC8672 is not set - -# CONFIG_VIRQ_DEBUG is not set - -CONFIG_PPC_BESTCOMM_ATA=m -CONFIG_PPC_BESTCOMM_FEC=m -CONFIG_PPC_BESTCOMM_GEN_BD=m - -CONFIG_FORCE_MAX_ZONEORDER=11 -# CONFIG_PAGE_OFFSET_BOOL is not set -# CONFIG_FB_FSL_DIU is not set -CONFIG_IRQSTACKS=y -CONFIG_VIRTUALIZATION=y - -# CONFIG_DEBUG_GPIO is not set -# CONFIG_GPIO_PCA953X is not set -# CONFIG_GPIO_PCF857X is not set -# CONFIG_HTC_EGPIO is not set - -# CONFIG_TIFM_CORE is not set - -# CONFIG_BLK_CPQ_CISS_DA is not set -# CONFIG_CISS_SCSI_TAPE is not set - -# CONFIG_I2C_NFORCE2 is not set - -# CONFIG_SND_INTEL8X0 is not set -# CONFIG_SND_INTEL8X0M is not set - -# CONFIG_MEMSTICK is not set - -# CONFIG_IPMI_HANDLER is not set - -# PPC gets sad with debug alloc (bz 448598) -# CONFIG_DEBUG_PAGEALLOC is not set - -CONFIG_CRYPTO_DEV_TALITOS=m - -# CONFIG_FSL_EMB_PERFMON is not set -# CONFIG_MPC8272_ADS is not set -# CONFIG_PQ2FADS is not set -# CONFIG_EP8248E is not set -# CONFIG_MPC830x_RDB is not set -# CONFIG_MPC831x_RDB is not set -# CONFIG_MPC832x_MDS is not set -# CONFIG_MPC832x_RDB is not set -# CONFIG_MPC834x_MDS is not set -# CONFIG_MPC834x_ITX is not set -# CONFIG_MPC836x_MDS is not set -# CONFIG_MPC836x_RDK is not set -# CONFIG_MPC837x_MDS is not set -# CONFIG_MPC837x_RDB is not set -# CONFIG_SBC834x is not set -# CONFIG_ASP834x is not set -# CONFIG_KMETER1 is not set -# CONFIG_MPC8641_HPCN is not set -# CONFIG_SBC8641D is not set -# CONFIG_MPC8610_HPCD is not set -# CONFIG_FSL_LBC is not set -# CONFIG_MTD_NAND_FSL_UPM is not set - -# CONFIG_USB_MUSB_HDRC is not set - -# busted in 2.6.27 -# drivers/mtd/maps/sbc8240.c: In function 'init_sbc8240_mtd': -# drivers/mtd/maps/sbc8240.c:172: warning: passing argument 1 of 'simple_map_init' from incompatible pointer type -# drivers/mtd/maps/sbc8240.c:177: error: 'struct mtd_info' has no member named 'module' - -CONFIG_RCU_FANOUT=32 - -CONFIG_KVM_BOOK3S_32=m - -# CONFIG_SCSI_QLA_ISCSI is not set - -CONFIG_BATTERY_PMU=m - diff --git a/config-powerpc32-smp b/config-powerpc32-smp deleted file mode 100644 index 5dbe87f..0000000 --- a/config-powerpc32-smp +++ /dev/null @@ -1,3 +0,0 @@ -# CONFIG_HOTPLUG_CPU is not set -CONFIG_NR_CPUS=4 -# CONFIG_BATTERY_PMU is not set diff --git a/filter-ppc.sh b/filter-ppc.sh deleted file mode 100644 index 8ff7a3b..0000000 --- a/filter-ppc.sh +++ /dev/null @@ -1,14 +0,0 @@ -#! /bin/bash - -# This is the ppc override file for the core/drivers package split. The -# module directories listed here and in the generic list in filter-modules.sh -# will be moved to the resulting kernel-modules package for this arch. -# Anything not listed in those files will be in the kernel-core package. -# -# Please review the default list in filter-modules.sh before making -# modifications to the overrides below. If something should be removed across -# all arches, remove it in the default instead of per-arch. - -driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn leds media memstick message mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb" - -singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject" diff --git a/kernel.spec b/kernel.spec index 11352bc..d460254 100644 --- a/kernel.spec +++ b/kernel.spec @@ -84,8 +84,6 @@ Summary: The Linux kernel # # standard kernel %define with_up %{?_without_up: 0} %{?!_without_up: 1} -# kernel-smp (only valid for ppc 32-bit) -%define with_smp %{?_without_smp: 0} %{?!_without_smp: 1} # kernel PAE (only valid for i686 (PAE) and ARM (lpae)) %define with_pae %{?_without_pae: 0} %{?!_without_pae: 1} # kernel-debug @@ -109,8 +107,6 @@ Summary: The Linux kernel # # Only build the base kernel (--with baseonly): %define with_baseonly %{?_with_baseonly: 1} %{?!_with_baseonly: 0} -# Only build the smp kernel (--with smponly): -%define with_smponly %{?_with_smponly: 1} %{?!_with_smponly: 0} # Only build the pae kernel (--with paeonly): %define with_paeonly %{?_with_paeonly: 1} %{?!_with_paeonly: 0} # Only build the debug kernel (--with dbgonly): @@ -193,14 +189,6 @@ Summary: The Linux kernel # if requested, only build base kernel %if %{with_baseonly} -%define with_smp 0 -%define with_pae 0 -%define with_debug 0 -%endif - -# if requested, only build smp kernel -%if %{with_smponly} -%define with_up 0 %define with_pae 0 %define with_debug 0 %endif @@ -208,7 +196,6 @@ Summary: The Linux kernel # if requested, only build pae kernel %if %{with_paeonly} %define with_up 0 -%define with_smp 0 %define with_debug 0 %endif @@ -218,7 +205,6 @@ Summary: The Linux kernel %define with_up 0 %define with_pae 0 %endif -%define with_smp 0 %define with_pae 0 %define with_tools 0 %define with_perf 0 @@ -228,16 +214,11 @@ Summary: The Linux kernel %if %{with_vdso_install} # These arches install vdso/ directories. -%define vdso_arches %{all_x86} x86_64 ppc ppc64 ppc64p7 s390 s390x aarch64 ppc64le +%define vdso_arches %{all_x86} x86_64 ppc64 ppc64p7 s390 s390x aarch64 ppc64le %endif # Overrides for generic default options -# only ppc needs a separate smp kernel -%ifnarch ppc -%define with_smp 0 -%endif - # don't do debug builds on anything but i686 and x86_64 %ifnarch i686 x86_64 %define with_debug 0 @@ -253,12 +234,12 @@ Summary: The Linux kernel %endif # bootwrapper is only on ppc -%ifnarch ppc ppc64 ppc64p7 ppc64le +%ifnarch ppc64 ppc64p7 ppc64le %define with_bootwrapper 0 %endif # sparse blows up on ppc64 and sparc64 -%ifarch ppc64 ppc ppc64p7 ppc64le +%ifarch ppc64 ppc64p7 ppc64le %define with_sparse 0 %endif @@ -311,16 +292,6 @@ Summary: The Linux kernel %define with_tools 0 %endif -%ifarch ppc -%define asmarch powerpc -%define hdrarch powerpc -%define all_arch_configs kernel-%{version}-ppc{-,.}*config -%define image_install_path boot -%define make_target vmlinux -%define kernel_image vmlinux -%define kernel_image_elf 1 -%endif - %ifarch %{arm} %define all_arch_configs kernel-%{version}-arm*.config %define image_install_path boot @@ -368,7 +339,6 @@ Summary: The Linux kernel %ifarch %nobuildarches %define with_up 0 -%define with_smp 0 %define with_pae 0 %define with_debuginfo 0 %define with_perf 0 @@ -382,7 +352,7 @@ Summary: The Linux kernel %endif # Architectures we build tools/cpupower on -%define cpupowerarchs %{ix86} x86_64 ppc ppc64 ppc64p7 %{arm} aarch64 ppc64le +%define cpupowerarchs %{ix86} x86_64 ppc64 ppc64p7 %{arm} aarch64 ppc64le # # Packages that need to be installed before the kernel is, because the %%post @@ -400,7 +370,7 @@ Version: %{rpmversion} Release: %{pkg_release} # DO NOT CHANGE THE 'ExclusiveArch' LINE TO TEMPORARILY EXCLUDE AN ARCHITECTURE BUILD. # SET %%nobuildarches (ABOVE) INSTEAD -ExclusiveArch: %{all_x86} x86_64 ppc ppc64 ppc64p7 s390 s390x %{arm} aarch64 ppc64le +ExclusiveArch: %{all_x86} x86_64 ppc64 ppc64p7 s390 s390x %{arm} aarch64 ppc64le ExclusiveOS: Linux Requires: kernel-%{?variant:%{variant}-}core-uname-r = %{KVERREL}%{?variant} Requires: kernel-%{?variant:%{variant}-}modules-uname-r = %{KVERREL}%{?variant} @@ -452,7 +422,6 @@ Source90: filter-x86_64.sh Source91: filter-armv7hl.sh Source92: filter-i686.sh Source93: filter-aarch64.sh -Source94: filter-ppc.sh Source95: filter-ppc64.sh Source96: filter-ppc64le.sh Source97: filter-s390x.sh @@ -473,8 +442,6 @@ Source32: config-x86-32-generic Source40: config-x86_64-generic Source50: config-powerpc-generic -Source51: config-powerpc32-generic -Source52: config-powerpc32-smp Source53: config-powerpc64 Source54: config-powerpc64p7 Source55: config-powerpc64le @@ -923,15 +890,6 @@ Provides: kernel-%{?1:%{1}-}core-uname-r = %{KVERREL}%{?1:+%{1}}\ # Now, each variant package. -%define variant_summary The Linux kernel compiled for SMP machines -%kernel_variant_package -n SMP smp -%description smp-core -This package includes a SMP version of the Linux kernel. It is -required only on machines with two or more CPUs as well as machines with -hyperthreading technology. - -Install the kernel-smp package if your machine uses two or more CPUs. - %ifnarch armv7hl %define variant_summary The Linux kernel compiled for PAE capable machines %kernel_variant_package %{pae} @@ -995,13 +953,6 @@ exit 1 %endif %endif -%if %{with_smponly} -%if !%{with_smp} -echo "Cannot build --with smponly, smp build is disabled" -exit 1 -%endif -%endif - %if "%{baserelease}" == "0" echo "baserelease must be greater than zero" exit 1 @@ -1588,7 +1539,7 @@ BuildKernel() { fi rm -f $RPM_BUILD_ROOT/lib/modules/$KernelVer/build/scripts/*.o rm -f $RPM_BUILD_ROOT/lib/modules/$KernelVer/build/scripts/*/*.o -%ifarch ppc ppc64 ppc64p7 +%ifarch ppc64 ppc64p7 cp -a --parents arch/powerpc/lib/crtsavres.[So] $RPM_BUILD_ROOT/lib/modules/$KernelVer/build/ %endif if [ -d arch/%{asmarch}/include ]; then @@ -1773,10 +1724,6 @@ BuildKernel %make_target %kernel_image %{pae} BuildKernel %make_target %kernel_image %endif -%if %{with_smp} -BuildKernel %make_target %kernel_image smp -%endif - %global perf_make \ make -s %{?cross_opts} %{?_smp_mflags} -C tools/perf V=1 WERROR=0 NO_LIBUNWIND=1 HAVE_CPLUS_DEMANGLE=1 NO_GTK2=1 NO_LIBNUMA=1 NO_STRLCPY=1 NO_BIONIC=1 prefix=%{_prefix} %if %{with_perf} @@ -2062,9 +2009,6 @@ fi}\ %kernel_variant_preun %kernel_variant_post -r kernel-smp -%kernel_variant_preun smp -%kernel_variant_post -v smp - %kernel_variant_preun %{pae} %kernel_variant_post -v %{pae} -r (kernel|kernel-smp) @@ -2217,7 +2161,6 @@ fi %kernel_variant_files %{with_up} -%kernel_variant_files %{with_smp} smp %kernel_variant_files %{with_debug} debug %kernel_variant_files %{with_pae} %{pae} %kernel_variant_files %{with_pae_debug} %{pae}debug @@ -2236,6 +2179,9 @@ fi # ||----w | # || || %changelog +* Fri May 16 2014 Josh Boyer <jwboyer(a)fedoraproject.org> +- Remove ppc32 support + * Thu May 15 2014 Josh Boyer <jwboyer(a)fedoraproject.org> - 3.15.0-0.rc5.git2.9 - Fix build fail on s390x -- 1.9.0

3 10

Fwd: [Intel-gfx] [PATCH 0/5] drm/i915: Fix backlight regression caused by misconfigured VBT
by Hans de Goede 02 Jul '14

02 Jul '14

Hi All, This patch series (which I'm forwarding from the intel-gfx mailing list) fixes a bunch of backlight regressions in 3.15+ and as such should probably be added to the stabilization branch. I expect these to land in 3.16 soon enough, but just to be sure we should keep an eye on that too. Regards, Hans

2 1

Would building netconsole in for debug kernels make sense?
by Bruno Wolff III 02 Jul '14

02 Jul '14

If netconsole is built as a module, you can't use it to capture output before the module gets loaded. Rebuilding Fedora srpms (to get Fedora patches) takes pretty long, which makes testing slow. I have something particular I am testing now (probably a nouveau related crash) that crashes for netconsole gets loaded (though I tried to add it to the initramfs to get it loaded fairly early). I am not sure if it will be early enough even if it is built in. I won't know until sometime tomorrow. But if it does get loaded early enough to handle video card related stuff, it seems like it be worth having built into debug kernels.

4 10

console font
by poma 01 Jul '14

01 Jul '14

On 25.06.2014 20:49, poma wrote: > On 25.06.2014 20:10, Felix Miata wrote: >> On 2014-06-25 10:05 (GMT-0700) Adam Williamson composed: >> >>> So...these are three different machines? >> >> 3 out of 14 on which Rawhide is currently installed (test machines total 20+) >> here, among which are represented various flavors of MGA (400 & 550), SiS >> (Z7/Z9 XG20 core), Intel (810, 815, 845, 865, 915, 945, 965, 3100, 4100), ATI >> (rv200, rv250, rv370, rv380, rv516) & NVidia for video. >> >>> I'm curious: why are you passing video= parameters on each one? Do >>> any/all of them work if you don't pass that parameter? >> >> Most of my test machines get used most of the time with a '21"' CRT with >> preferred mode 1600x1200 reported as preferred mode 1280x1024 used at >> approximately 175% of normal viewing distance. Avoiding eyestrain requires >> 1152x864 or lower on the vttys unless I want to monkey with terminal font >> reconfiguration from default. >> >> My second most used test machine display is a 19" LCD TV with native mode >> 1440x900 that reports preferred 1280x1024 but supports 4:3 modes up to >> 1792x1344. It is used at similar distance, so also needs 1024x768 on the >> vttys for the same reason as the CRT. >> >> I also have 2 15" 1024x768, 17" & 19" 1280x1024 and 20" 1600x1200 LCD puter >> displays, 2 31.5" TVs, and an abundance of other CRTs to use as test >> conditions require, in addition to the LCDs used for my 24/7 systems that can >> be briefly pressed into test service when necessary. >> > > # yum install terminus-fonts-console > > - permanent system wide > /etc/vconsole.conf > FONT=<Big mama font> > > e.g. 'latarcyrheb-sun32' or 'ter-v32b' > > - runtime local > $ setfont latarcyrheb-sun32 > $ setfont ter-v32b systemd-214-5.fc21.x86_64 kernel-3.16.0-0.rc3.git0.1.fc21.x86_64 It seems this kernel? bug is still present[2]. "rd.vconsole.font=ter-v32b" also fails to subsist due to "fb: switching to nouveaufb from VESA VGA". - journal systemd-vconsole-setup systemd[1]: Starting Setup Virtual Console... systemd-vconsole-setup[347]: putfont: KDFONTOP: Invalid argument systemd-vconsole-setup[347]: /usr/bin/setfont failed with error code 71. systemd[1]: Started Setup Virtual Console. I've found so far that this can only be overcome with these two almost identical solutions; When I thought of 'actual-vconsole-setup-start' I did not know that Yegor already done it. Saṃsāra. Yegor's solution[1]: # cp /usr/lib/systemd/system/systemd-vconsole-setup.service /etc/systemd/system/ # diff /etc/systemd/system/systemd-vconsole-setup.service \ > /usr/lib/systemd/system/systemd-vconsole-setup.service 13,14c13,14 < After=sysinit.target < Before=shutdown.target --- > After=systemd-readahead-collect.service systemd-readahead-replay.service > Before=sysinit.target shutdown.target or even simpler - leave 'systemd-vconsole-setup.service' as is, and make this one /etc/systemd/system/actual-vconsole-setup-start.service: # Actual Virtual Console Setup Start [Unit] Description=Actual Virtual Console Setup Start [Service] Type=forking ExecStart=/usr/lib/systemd/systemd-vconsole-setup [Install] WantedBy=rescue.target multi-user.target # systemctl enable actual-vconsole-setup-start.service and now you have appropriate font size for 1920x1080, no need to lower resolution via "video=<xres>x<yres>". Perhaps '32' is too large, so choose <= '28', e.g. ter-v28b or ter-v24b. /usr/share/doc/terminus-fonts-console/README[.fedora] poma [1] systemd-vconsole-setup: /usr/bin/setfont failed with error code 71 http://lists.freedesktop.org/archives/systemd-devel/2011-June/002562.html [2] Can not change console font via /etc/vconsole.conf https://bugzilla.redhat.com/show_bug.cgi?id=1074113 The keyboard layout for the virtual console cannot be changed using “localectl set-keymap <map>; dracut -f; reboot;” https://bugzilla.redhat.com/show_bug.cgi?id=1033250 font settings are lost when kernel fb drivers are changed https://bugzilla.redhat.com/show_bug.cgi?id=892340 Kernel drivers lose console font settings https://bugzilla.redhat.com/show_bug.cgi?id=1074624

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[PATCH F19 F20 Rawhide] Revert "Input: wacom - testing result shows get_report is unnecessary."
by Benjamin Tissoires 26 Jun '14

26 Jun '14

This reverts commit 1b2faaf7e219fc2905d75afcd4c815e5d39eda80. The Intuos4 series presents a bug in which it hangs if it receives a set feature command while switching to the enhanced mode. This bug is triggered when plugging an Intuos 4 while having a gnome user session up and running. Signed-off-by: Benjamin Tissoires <benjamin.tissoires(a)redhat.com> Signed-off-by: Aristeu Rozanski <aris(a)redhat.com> --- Hi, This patch is on its way upstream (it has been submitted to the list): http://www.spinics.net/lists/linux-input/msg31843.html I already received a complain from Bastien that his Wacom was broken in F20, so having this in F20 and rawhide would help the Intuos 4 users. The regression has been introduced in the kernel v3.12, so F19, F20 and rawhide are impacted. Cheers, Benjamin drivers/input/tablet/wacom_sys.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 852ce9d..afa4e8d 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -536,6 +536,9 @@ static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, report_id, rep_data, length, 1); + if (error >= 0) + error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, + report_id, rep_data, length, 1); } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); kfree(rep_data); -- 1.9.3

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Re: 3.16.x on i686
by poma 25 Jun '14

25 Jun '14

On 06/23/2014 06:28 AM, Adam Williamson wrote: > On Mon, 2014-06-23 at 05:03 +0200, poma wrote: > >> Not only LightDM, but all tested display managers refuse to work. >> There might be a general strike on i686 avenue. :) > > Already reported, diagnosed and fixed upstream. > https://bugzilla.redhat.com/show_bug.cgi?id=1110968 . I expect jwb will > backport the patch on Monday. > Thanks for info. Yeah, as Lubomir stated "vdso=0" works with broken ones, and 3.16.0-0.rc2.git0.3.fc21.i686 PASSED BTW, Adam, there are people running & testing Rawhide on i686! :) poma

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No 3.15.1 kernel builds are getting scarce
by poma 21 Jun '14

21 Jun '14

I was expecting to see 3.15.1 kernel show up with stable status in Fedora 20. But we haven't had one show up yet. We may need it for new features in it, since 3.14.x missing some of them. It is nice to have the 3.15.x for day to day use. FTL poma

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