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Message-ID: <ZVEUKK2sMgEZsmO_@mtj.duckdns.org>
Date:   Sun, 12 Nov 2023 12:06:32 -0600
From:   Tejun Heo <tj@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     torvalds@...ux-foundation.org, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vschneid@...hat.com, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, martin.lau@...nel.org,
        joshdon@...gle.com, brho@...gle.com, pjt@...gle.com,
        derkling@...gle.com, haoluo@...gle.com, dvernet@...a.com,
        dschatzberg@...a.com, dskarlat@...cmu.edu, riel@...riel.com,
        changwoo@...lia.com, himadrics@...ia.fr, memxor@...il.com,
        oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org, kernel-team@...a.com
Subject: Re: [PATCH 13/36] sched_ext: Add scx_simple and scx_example_qmap
 example schedulers

On Sun, Nov 12, 2023 at 12:17:07PM +0800, kernel test robot wrote:
> Hi Tejun,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on linux/master]
> [also build test ERROR on linus/master next-20231110]
> [cannot apply to tip/sched/core tj-cgroup/for-next v6.6]
> [If your patch is applied to the wrong git tree, kindly drop us a note.

The patches are on top of bpf-next:

 git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master

> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]

Will do.

> url:    https://github.com/intel-lab-lkp/linux/commits/Tejun-Heo/sched-Restructure-sched_class-order-sanity-checks-in-sched_init/20231111-145751
> base:   linux/master
> patch link:    https://lore.kernel.org/r/20231111024835.2164816-14-tj%40kernel.org
> patch subject: [PATCH 13/36] sched_ext: Add scx_simple and scx_example_qmap example schedulers
> reproduce: (https://download.01.org/0day-ci/archive/20231112/202311121239.GTR1obNe-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202311121239.GTR1obNe-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
> >> Makefile:83: *** Cannot find a vmlinux for VMLINUX_BTF at any of "  ../../vmlinux /sys/kernel/btf/vmlinux /boot/vmlinux-5.9.0-0.bpo.2-amd64".  Stop.

The example schedulers need the following options enabled.

  CONFIG_BPF=y
  CONFIG_SCHED_CLASS_EXT=y
  CONFIG_BPF_SYSCALL=y
  CONFIG_BPF_JIT=y
  CONFIG_DEBUG_INFO_BTF=y
  CONFIG_BPF_JIT_ALWAYS_ON=y
  CONFIG_BPF_JIT_DEFAULT_ON=y

Thanks.

-- 
tejun

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