* [peterz-queue:locking/core 21/21] WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
@ 2021-07-14 1:08 ` kernel test robot
0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2021-07-14 1:08 UTC (permalink / raw)
To: Mark Rutland; +Cc: kbuild-all, linux-kernel, Peter Zijlstra
[-- Attachment #1: Type: text/plain, Size: 2620 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
head: ceb71d863ae0bfca14303c189bbf5903a02ff95a
commit: ceb71d863ae0bfca14303c189bbf5903a02ff95a [21/21] locking/atomic: add generic arch_*() bitops
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=ceb71d863ae0bfca14303c189bbf5903a02ff95a
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue locking/core
git checkout ceb71d863ae0bfca14303c189bbf5903a02ff95a
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
>> WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
The function __set_bit() references
the variable __initdata initcall_level_names.
This is often because __set_bit lacks a __initdata
annotation or the annotation of initcall_level_names is wrong.
The below error/warnings are from parent commit:
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x24a10): Section mismatch in reference from the function bfq_pos_tree_add_move() to the variable .init.data:initcall_level_names
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x24f84): Section mismatch in reference from the function bitmap_equal() to the variable .init.rodata:__setup_str_initcall_blacklist
<< WARNING: modpost: vmlinux.o(.data+0x15ebc68): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:__setup_str_initcall_blacklist
<< WARNING: modpost: vmlinux.o(.data+0x15f67f0): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:__setup_str_initcall_blacklist
<< WARNING: modpost: vmlinux.o(.data+0x15ebb70): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:__setup_str_initcall_blacklist
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 67906 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* [peterz-queue:locking/core 21/21] WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
@ 2021-07-14 1:08 ` kernel test robot
0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2021-07-14 1:08 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2657 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
head: ceb71d863ae0bfca14303c189bbf5903a02ff95a
commit: ceb71d863ae0bfca14303c189bbf5903a02ff95a [21/21] locking/atomic: add generic arch_*() bitops
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=ceb71d863ae0bfca14303c189bbf5903a02ff95a
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue locking/core
git checkout ceb71d863ae0bfca14303c189bbf5903a02ff95a
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
>> WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
The function __set_bit() references
the variable __initdata initcall_level_names.
This is often because __set_bit lacks a __initdata
annotation or the annotation of initcall_level_names is wrong.
The below error/warnings are from parent commit:
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x24a10): Section mismatch in reference from the function bfq_pos_tree_add_move() to the variable .init.data:initcall_level_names
<< WARNING: modpost: vmlinux.o(.text.unlikely+0x24f84): Section mismatch in reference from the function bitmap_equal() to the variable .init.rodata:__setup_str_initcall_blacklist
<< WARNING: modpost: vmlinux.o(.data+0x15ebc68): Section mismatch in reference from the variable qed_mfw_ext_maps to the variable .init.rodata:__setup_str_initcall_blacklist
<< WARNING: modpost: vmlinux.o(.data+0x15f67f0): Section mismatch in reference from the variable qede_forced_speed_maps to the variable .init.rodata:__setup_str_initcall_blacklist
<< WARNING: modpost: vmlinux.o(.data+0x15ebb70): Section mismatch in reference from the variable qed_mfw_legacy_maps to the variable .init.rodata:__setup_str_initcall_blacklist
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 67906 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [peterz-queue:locking/core 21/21] WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
2021-07-14 1:08 ` kernel test robot
@ 2021-07-14 19:55 ` Mark Rutland
-1 siblings, 0 replies; 4+ messages in thread
From: Mark Rutland @ 2021-07-14 19:55 UTC (permalink / raw)
To: kernel test robot; +Cc: kbuild-all, linux-kernel, Peter Zijlstra
Hi,
On Wed, Jul 14, 2021 at 09:08:08AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
> head: ceb71d863ae0bfca14303c189bbf5903a02ff95a
> commit: ceb71d863ae0bfca14303c189bbf5903a02ff95a [21/21] locking/atomic: add generic arch_*() bitops
> config: xtensa-allyesconfig (attached as .config)
> compiler: xtensa-linux-gcc (GCC) 9.3.0
> 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://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=ceb71d863ae0bfca14303c189bbf5903a02ff95a
> git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
> git fetch --no-tags peterz-queue locking/core
> git checkout ceb71d863ae0bfca14303c189bbf5903a02ff95a
> # save the attached .config to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>, old ones prefixed by <<):
>
> >> WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
> The function __set_bit() references
> the variable __initdata initcall_level_names.
I can reproduce this with the kernel.org cross toolchain:
https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/9.3.0/x86_64-gcc-9.3.0-nolibc-xtensa-linux.tar.gz
... but the warning looks to be bogus; __set_bit() doesn't use that
symbol, and where that symbol is defined it looks to be used safely.
On the prior commit there was a similarly bogus warning in place of this
one:
| WARNING: modpost: vmlinux.o(.text.unlikely+0x24a10): Section mismatch in reference from the function bfq_pos_tree_add_move() to the variable .init.data:initcall_level_names
| The function bfq_pos_tree_add_move() references
| the variable __initdata initcall_level_names.
| This is often because bfq_pos_tree_add_move lacks a __initdata
| annotation or the annotation of initcall_level_names is wrong.
... so I think there is a latent bug here with the section mismatch
warning, and this commit has simply changed the bogus symbol it reports.
Given that, I think we should ignore this.
Thanks,
Mark.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [peterz-queue:locking/core 21/21] WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
@ 2021-07-14 19:55 ` Mark Rutland
0 siblings, 0 replies; 4+ messages in thread
From: Mark Rutland @ 2021-07-14 19:55 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2626 bytes --]
Hi,
On Wed, Jul 14, 2021 at 09:08:08AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
> head: ceb71d863ae0bfca14303c189bbf5903a02ff95a
> commit: ceb71d863ae0bfca14303c189bbf5903a02ff95a [21/21] locking/atomic: add generic arch_*() bitops
> config: xtensa-allyesconfig (attached as .config)
> compiler: xtensa-linux-gcc (GCC) 9.3.0
> 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://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=ceb71d863ae0bfca14303c189bbf5903a02ff95a
> git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
> git fetch --no-tags peterz-queue locking/core
> git checkout ceb71d863ae0bfca14303c189bbf5903a02ff95a
> # save the attached .config to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>, old ones prefixed by <<):
>
> >> WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names
> The function __set_bit() references
> the variable __initdata initcall_level_names.
I can reproduce this with the kernel.org cross toolchain:
https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/9.3.0/x86_64-gcc-9.3.0-nolibc-xtensa-linux.tar.gz
... but the warning looks to be bogus; __set_bit() doesn't use that
symbol, and where that symbol is defined it looks to be used safely.
On the prior commit there was a similarly bogus warning in place of this
one:
| WARNING: modpost: vmlinux.o(.text.unlikely+0x24a10): Section mismatch in reference from the function bfq_pos_tree_add_move() to the variable .init.data:initcall_level_names
| The function bfq_pos_tree_add_move() references
| the variable __initdata initcall_level_names.
| This is often because bfq_pos_tree_add_move lacks a __initdata
| annotation or the annotation of initcall_level_names is wrong.
... so I think there is a latent bug here with the section mismatch
warning, and this commit has simply changed the bogus symbol it reports.
Given that, I think we should ignore this.
Thanks,
Mark.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-07-14 20:04 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2021-07-14 1:08 [peterz-queue:locking/core 21/21] WARNING: modpost: vmlinux.o(.text.unlikely+0x253ac): Section mismatch in reference from the function __set_bit() to the variable .init.data:initcall_level_names kernel test robot
2021-07-14 1:08 ` kernel test robot
2021-07-14 19:55 ` Mark Rutland
2021-07-14 19:55 ` Mark Rutland
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