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2020-12-30standard: include clear warn once featureBruce Ashfield
Here is an extension to a lesser known feature - making it easier to use in the case of pre-canned kernels and rootfs as we'd typically find in tmp/deploy/images from Yocto. Have you've ever looked at a WARN_ONCE() or a printk_once() and wondered "How would I know if that really just happened as a fluke, or happens every 3am when cron runs, but I just only hear about it once?" Well, the answer was added around v4.15 - in the form of a little known /sys/kernel/debug/clear_warn_once feature that lets you reset state to "freshly booted" for all the "once" type instances, in order to see if they happen again. The problem is, that you need debugfs enabled/mounted, and you need to be able to ssh onto the target to reset. Or you have to re-spin your rootfs to contain an rc.local to periodically reset for a rootfs that doesn't support interactive logins (as is fairly common for Yocto targets). Here, we add an in-kernel timer based reset, and provide access to arming it with a kernel boot arg, so that it doesn't require kernel rebuilds, or rootfs image alterations. In addition, the boot arg doesn't depend on debugfs, which is likely disabled to reduce the size and attack surface of embedded deployments. I should note that this was sent to the printk maintainer recently, but he declined to merge it. I won't try and summarize the reasons given here - but if people are at all interested in using this, I strongly suggest you go read the 0/3 thread and decide for yourself from the discussion on how many of the possible concerns floated are valid and worthy of consideration for your use case, or just in general. https://lore.kernel.org/r/20201126063029.2030-1-paul.gortmaker@windriver.com/ That said, I think it is still useful for the kinds of deployments we see in Yocto, and indeed the request for something like this came from users of Yocto, hence why I'm offering it for inclusion in the Yocto kernels regardless. There are two minor changes in the code here vs. that original posting. 1) Make the user facing timer value minute based, instead of seconds. 2) Make the boot arg use the same name as used in /sys/kernel/debug for consistency and ease of use. I've tested on standard/base + defconfig on v5.4.82 in linux-yocto, and the rolling v5.10 baseline of linux-yocto-dev. As it turns out, the git am of the v5.10 patches is hands free on the the v5.4 baseline, so there is no need to send two versions, and it also speaks to a minimal carrying cost going forward Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-12-17base: make fw_loader moduleBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-12-17meta: update hardware and non-hardware buckets for 5.10Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-08-285.9-rcX preparationBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-08-24nfs: allow udp based NFSBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-08-23linux-yocto/rt: enable kprobes by defaultBruce Ashfield
Traditionally kprobes and -rt haven't mixed well, but recent -rt kernels support kprobes without issues. lttng now requires kprobes to be enabled, or the following error is thrown: | build/tmp/work/qemux86_64-poky-linux/lttng-modules/2.12.2-r0/lttng-modules-2.12.2/wrapper/kallsyms.c:20:3: error: #error "LTTng-modules requires CONFIG_KPROBES on kernels >= 5.7.0" | 20 | # error "LTTng-modules requires CONFIG_KPROBES on kernels >= 5.7.0" | | ^~~~~ | make[3]: *** [build/tmp/work-shared/qemux86-64/kernel-source/scripts/Makefile.build:280: build/tmp/work/qemux86_64-poky-linux/lttng-modules/2.12.2-r0/lttng-modules-2.12.2/wrapper/kallsyms.o] Error 1 By including the kprobes fragment into the -rt kernel by default, we fix the issue. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-08-07v5.8 mismatch fixupsBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-08-07meta: update hardware and non-hardware buckets for 5.8Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-05-06kernel/features: remove uptime restrictionsBruce Ashfield
The uptime feature was specifically requested in the early days of linux-yocto. It is no longer useful, and is causing build issues, so we remove it completely. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-03-09kver: update -dev to v5.6-rc5Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-02-06standard.cfg: enable RAID 4/5/6Alexander Kanavin
This in particular allows testing mdraid inside qemu as it expects RAID 4/5/6 to be available. Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-01-15v5.5: cleanupsBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-01-13rt: config: tweak CONFIG_PREEMPT_RT_FULL to CONFIG_PREEMPT_RTBruce Ashfield
With the latest preempt-rt, we use juse CONFIG_PREEMPT_RT and not CONFIG_PREEMPT_RT_FULL. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-01-12v5.5: patch prepBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2020-01-09ktypes/base: make v5.5 branch pointBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2019-10-07meta: add SPDX License Identifier and updates 00-README with License policyYann CARDAILLAC
Signed-off-by: Yann CARDAILLAC <ycnakajsph@gmail.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2019-07-22config: set CONFIG_LIBCRC32C=yBruce Ashfield
Since commit d5178578bcd461cc79118c7a139882350fe505aa Author: Johannes Thumshirn <jthumshirn@suse.de> Date: Mon Jun 3 16:58:57 2019 +0200 btrfs: directly call into crypto framework for checksumming We now have a dependency on crc32 in crypto, and it must be built into the kernel to avoid: | x86_64-poky-linux-ld.bfd: fs/btrfs/super.o: in function `btrfs_mount_root': | super.c:(.text+0xb9b6): undefined reference to `crc32c_impl' | x86_64-poky-linux-ld.bfd: fs/btrfs/super.o: in function `init_btrfs_fs': | super.c:(.init.text+0x362b): undefined reference to `crc32c_impl' | x86_64-poky-linux-ld.bfd: fs/btrfs/extent-tree.o: in function `hash_extent_data_ref': | extent-tree.c:(.text+0xdfa): undefined reference to `crc32c' | x86_64-poky-linux-ld.bfd: extent-tree.c:(.text+0xe13): undefined reference to `crc32c' | x86_64-poky-linux-ld.bfd: extent-tree.c:(.text+0xe27): undefined reference to `crc32c' | x86_64-poky-linux-ld.bfd: fs/btrfs/dir-item.o: in function `btrfs_insert_xattr_item': | dir-item.c:(.text+0x286): undefined reference to `crc32c' So we set our defaults to cover the btrfs build cases without error. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2019-06-01features: move ftrace to before arch/armBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2019-03-05meta: update hardware and non-hardware buckets for 5.0Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2019-03-05iosched: remove configs for removed legacy io schedulesBruce Ashfield
As per commit f382fb0bce [block: remove legacy IO schedulers], the legacy CFQ schedulers have been dropped from the kernel. So we drop them from our base configuration. Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
2019-01-10v5.0: kernel patch prepBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-11-29standard/preempt-rt.cfg: remove CONFIG_CIFS_STATSAnuj Mittal
This is always enabled now starting 4.19. https://github.com/torvalds/linux/commit/fcabb89299d79010eb923afdd26de04afcc0527f Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-11-28base: add placeholder branchingBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-09-06preempt-rt: remove entry for aufsAnuj Mittal
The preempt-rt config explicitly disables aufs which can result in config warnings for kernels where the aufs patches aren't applied. Since default state of aufs is 'n', there's no need to disable it explicitly here. For BSPs relying on aufs, they should enable it by including features/aufs/aufs-enable.scc. Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-08-22rt: drop obselete configuration optionsBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-08-16fragments: drop invalid/obselete optinosBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-08-15meta: update hardware and non-hardware buckets for 4.18Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-07-25standard: add bfp configs by defaultBruce Ashfield
Userspace functionality that requires BPF is becoming more common (even systemd is looking for it), so we globally enable these configs in the standard configuration. Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2018-07-13tiny: Remove CONFIG_TINY_RCUHe Zhe
Currently CONFIG_SMP and CONFIG_PREEMPT are enabled for tiny by default which prevents CONFIG_TINY_RCU from being enabled and causes the follow warning. When CONFIG_SMP and CONFIG_PREEMPT are disabled, like when building UP kernel, CONFIG_TINY_RCU will be selected by default. So this removal fixes the warning and is harmless. ---------- CONFIG_TINY_RCU ----------------- Config: CONFIG_TINY_RCU From: kernel-source/.kernel-meta/configs/VERSION/standard/tiny/ktypes/tiny/tiny.cfg Requested value: CONFIG_TINY_RCU=y Actual value: Signed-off-by: He Zhe <zhe.he@windriver.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2017-11-01edac: split scc into enablement and patching (for treegen)Paul Gortmaker
Calling out the existing edac.scc via KERNEL_FEATURES_append will fail since it contains patch commands, and the patches will unconditionally be queued for application. Split it so instead it can use KERNEL_FEATURES_append += "features/edac/edac-enable.scc" in templates/configuration files external to the kernel-cache. Note that we also hook the remaining patch chunk into the standard ktype so that "rebase" branches (when created) will faithfully mirror the content merged into the fast forward branches. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2017-08-30ktypes/standard: enable CONFIG_CRYPTO_CCM and GCMMikko Ylinen
In order to build backport-iwlwifi driver (meta-intel has the recipe) that ships its own MAC80211 and to use the crypto drivers from the targeted kernel for it, CONFIG_CRYPTO_CCM must be enabled. backport-iwlwifi does have a compat implementation of crypto-ccm.c too that would be used if CONFIG_CRYPTO_CCM is not set but that currently fails to build (implicit function declaration). Therefore, just enable CRYPTO_CCM. And while we're at it, enable all crypto drivers that are needed by MAC80211. Signed-off-by: Mikko Ylinen <mikko.ylinen@linux.intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2017-07-26meta: update hardware and non-hardware buckets for 4.13Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2017-06-01ktypes/developer: Enable CONFIG_KEXEC in configAníbal Limón
The oe-core provides kexec-tools recipe, since we don't have a manner to enable automatically a kernel feature by recipe request, this is the best place to enable it in a kernel developer mode. Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
2017-01-29Filesystem encryption supportJussi Laako
This patch enables ext4 filesystem encryption and also layered filesystem encryption. Signed-off-by: Jussi Laako <jussi.laako@linux.intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2016-10-24preempt-rt: remove extra 'base' branchBruce Ashfield
A stray 'branch base' crept into the preempt-rt meta-data. This isnt needed, since the tools can detect when to create a 'base' branch on their own. The extra branch command was clearing the patch queue, which prevented preempt-rt patches from being applied during treegen. Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2016-09-074.8: sync missing 4.4 meta-dataBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2016-08-30preempt-rt: force preempt-rt/base to always be createdBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2016-07-27base: disable legacy PTYSBruce Ashfield
Legacy PTY support adds overhead to the kernel and delays to the boot process. So we disable it by default. Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2016-04-12ktypes/tiny/tiny.cfg: support /proc/sysRobert Yang
Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2016-03-21ktypes/standard: Add tmpfs-posix-acl featureCalifornia Sullivan
Fixes [YOCTO #9269] Signed-off-by: California Sullivan <california.l.sullivan@intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-07-09meta: update hardware and non-hardware buckets for 4.1Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-06-16cfg/fs: remove MINUX and REISER modulesBruce Ashfield
The users of minux and reiser fs are few and far between. We don't need these modules built (and deployed) all the time, so we disable them by default. The few users of these FSs can enable them in fragments. Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-06-16cfg/fs: only enable EXT4Bruce Ashfield
ext4 is compatble with ext2/3 filesystems, so we should streamline our config and only enable ext4. Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-05-19criu: move to opt-in vs opt-outBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-05-19standard: fix incorrect criu includeBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-05-19ktypes: add criu to preempt-rt and standardBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-03-18tiny.cfg: Enable BINFMT_SCRIPTDarren Hart
Tiny kernels currently fail to run /init from tiny-init, a #!/bin/sh script as the kernel is missing BINFMT_SCRIPT. Add this to the tiny.cfg fragment. Developed on 3.19, applied and verified on 3.14. Signed-off-by: Darren Hart <dvhart@linux.intel.com> Cc: Richard Purdie <richard.purdie@linuxfoundation.org> Cc: Saul Wold <sgw@linux.intel.com> Cc: Eduard Bartosh <eduard.bartosh@intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-02-18kconf: give main Kconfig to non-hardware designationBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-02-18meta: remove obselete/invalid optionsBruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
2015-02-12meta: update hardware and non-hardware buckets for 3.19Bruce Ashfield
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-03 10:38:02 +0000