public inbox for [email protected]
 help / color / mirror / Atom feed
From: "Paul E. McKenney" <[email protected]>
To: kernel test robot <[email protected]>
Cc: [email protected],
	GNU/Weeb Mailing List <[email protected]>,
	[email protected]
Subject: Re: [ammarfaizi2-block:paulmck/linux-rcu/fastexp.2022.04.01a 136/158] WARNING: modpost: vmlinux.o(.text+0x28d3a): Section mismatch in reference from the function cpu_in_idle() to the variable .init.text:.LVL79
Date: Sun, 3 Apr 2022 20:41:51 -0700	[thread overview]
Message-ID: <20220404034151.GS4285@paulmck-ThinkPad-P17-Gen-1> (raw)
In-Reply-To: <[email protected]>

On Mon, Apr 04, 2022 at 08:18:59AM +0800, kernel test robot wrote:
> tree:   https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/fastexp.2022.04.01a
> head:   d9f3e7d671416fdf5b61f094765754269b652db0
> commit: 4a8d065a72d07894b2d9f976ffa9ee4ab1f8abb4 [136/158] refscale: Allow refscale without RCU Tasks
> config: riscv-randconfig-r002-20220403 (https://download.01.org/0day-ci/archive/20220404/[email protected]/config)
> compiler: riscv32-linux-gcc (GCC) 11.2.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/ammarfaizi2/linux-block/commit/4a8d065a72d07894b2d9f976ffa9ee4ab1f8abb4
>         git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
>         git fetch --no-tags ammarfaizi2-block paulmck/linux-rcu/fastexp.2022.04.01a
>         git checkout 4a8d065a72d07894b2d9f976ffa9ee4ab1f8abb4
>         # save the config file to linux build tree
>         mkdir build_dir
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <[email protected]>
> 
> All warnings (new ones prefixed by >>, old ones prefixed by <<):
> 
> >> WARNING: modpost: vmlinux.o(.text+0x28d3a): Section mismatch in reference from the function cpu_in_idle() to the variable .init.text:.LVL79
> The function cpu_in_idle() references
> the variable __init .LVL79.
> This is often because cpu_in_idle lacks a __init
> annotation or the annotation of .LVL79 is wrong.

This added information is much nicer, thank you!

But I cannot make cpu_in_idle()  as __init because it is invoked at
runtime by nmi_cpu_backtrace().

Also, I do not see any .LVL79.  Might this be a compiler temporary?

And I cannot see how this patch could have affected cpu_in_idle().

Might this instead be a false positive caused by the fact that
cpu_in_idle() references __cpuidle_text_start and __cpuidle_text_end,
both of which are defined in vmlinux.lds.h?

							Thanx, Paul

> --
> >> WARNING: modpost: vmlinux.o(.text+0x81fe66): Section mismatch in reference from the function pccard_sysfs_remove_socket() to the variable .init.text:.LVL163
> The function pccard_sysfs_remove_socket() references
> the variable __init .LVL163.
> This is often because pccard_sysfs_remove_socket lacks a __init
> annotation or the annotation of .LVL163 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0x967e84): Section mismatch in reference from the function rproc_report_crash() to the variable .init.text:.L0
> The function rproc_report_crash() references
> the variable __init .L0 .
> This is often because rproc_report_crash lacks a __init
> annotation or the annotation of .L0 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0x97395c): Section mismatch in reference from the function sdw_debugfs_exit() to the variable .init.text:.L0
> The function sdw_debugfs_exit() references
> the variable __init .L0 .
> This is often because sdw_debugfs_exit lacks a __init
> annotation or the annotation of .L0 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0xa3373a): Section mismatch in reference from the function snd_pcm_period_elapsed() to the variable .init.text:.L0
> The function snd_pcm_period_elapsed() references
> the variable __init .L0 .
> This is often because snd_pcm_period_elapsed lacks a __init
> annotation or the annotation of .L0 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0xb54e76): Section mismatch in reference from the function br_vlan_tunnel_info() to the variable .init.text:.L0
> The function br_vlan_tunnel_info() references
> the variable __init .L0 .
> This is often because br_vlan_tunnel_info lacks a __init
> annotation or the annotation of .L0 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0xbd1d50): Section mismatch in reference from the function batadv_v_mesh_free() to the variable .init.text:.L0
> The function batadv_v_mesh_free() references
> the variable __init .L0 .
> This is often because batadv_v_mesh_free lacks a __init
> annotation or the annotation of .L0 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0xd24c8): Section mismatch in reference from the function wb_wakeup_delayed() to the variable .exit.text:.L0
> The function wb_wakeup_delayed() references a variable in an exit section.
> Often the variable .L0 has valid usage outside the exit section
> and the fix is to remove the __exit annotation of .L0 .
> --
> >> WARNING: modpost: vmlinux.o(.text+0x378a4a): Section mismatch in reference from the function drm_mode_equal() to the variable .init.text:.LBB506
> The function drm_mode_equal() references
> the variable __init .LBB506.
> This is often because drm_mode_equal lacks a __init
> annotation or the annotation of .LBB506 is wrong.
> --
> >> WARNING: modpost: vmlinux.o(.text+0x378a54): Section mismatch in reference from the function drm_mode_equal_no_clocks() to the variable .init.text:.LBB506
> The function drm_mode_equal_no_clocks() references
> the variable __init .LBB506.
> This is often because drm_mode_equal_no_clocks lacks a __init
> annotation or the annotation of .LBB506 is wrong.
> 
> Note: the below error/warnings can be found in parent commit:
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> << WARNING: modpost: vmlinux.o(.text+0x17f74): Section mismatch in reference from the function wq_watchdog_touch() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x2ad3a): Section mismatch in reference from the function calc_load_nohz_stop() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x1816f8): Section mismatch in reference from the function autofs_clean_ino() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x26987c): Section mismatch in reference from the function zstd_find_frame_compressed_size() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x477170): Section mismatch in reference from the function radeon_audio_init() to the variable .init.text:.LVL153
> << WARNING: modpost: vmlinux.o(.text+0x6a44d4): Section mismatch in reference from the function gf100_gr_wait_idle() to the variable .init.text:.LBB317
> << WARNING: modpost: vmlinux.o(.text+0x96a4ee): Section mismatch in reference from the function rpmsg_create_channel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a502): Section mismatch in reference from the function rpmsg_release_channel() to the variable .init.text:.L6
> << WARNING: modpost: vmlinux.o(.text+0x96a51a): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L13
> << WARNING: modpost: vmlinux.o(.text+0x96a660): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L25
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://01.org/lkp

      reply	other threads:[~2022-04-04  3:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-04  0:18 [ammarfaizi2-block:paulmck/linux-rcu/fastexp.2022.04.01a 136/158] WARNING: modpost: vmlinux.o(.text+0x28d3a): Section mismatch in reference from the function cpu_in_idle() to the variable .init.text:.LVL79 kernel test robot
2022-04-04  3:41 ` Paul E. McKenney [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220404034151.GS4285@paulmck-ThinkPad-P17-Gen-1 \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox