On Mon, Apr 04, 2022 at 12:20:22AM +0800, kernel test robot wrote:
> tree: https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/fastexp.2022.04.01a
> head: d9f3e7d671416fdf5b61f094765754269b652db0
> commit: c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba [109/158] rcu: Add polled expedited grace-period primitives
> 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/c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba
> 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 c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba
> # 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+0xbcac06): Section mismatch in reference from the function ieee802154_iface_init() to the variable .init.text:.L0
> The function ieee802154_iface_init() references
> the variable __init .L0 .
> This is often because ieee802154_iface_init lacks a __init
> annotation or the annotation of .L0 is wrong.
>
> Note: the below error/warnings can be found in parent commit:
> << WARNING: modpost: vmlinux.o(.text+0x432e6): Section mismatch in reference from the function dma_get_required_mask() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0xe35ca): Section mismatch in reference from the function mlock_page_drain() to the variable .init.text:.LVL125
> << WARNING: modpost: vmlinux.o(.text+0x96a46e): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a5b4): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a5c0): Section mismatch in reference from the function rpmsg_send() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a5d4): Section mismatch in reference from the function rpmsg_sendto() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a5e8): Section mismatch in reference from the function rpmsg_send_offchannel() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a5fc): Section mismatch in reference from the function rpmsg_trysend() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a610): Section mismatch in reference from the function rpmsg_trysendto() to the variable .init.text:.L0
> << WARNING: modpost: vmlinux.o(.text+0x96a624): Section mismatch in reference from the function rpmsg_poll() to the variable .init.text:.L0
I freely confess that I have no idea what any of these error messages
are trying to tell me. What is ".init.txt.L0"? How did my patch affect
ieee802154_iface_init() or the register_netdevice_notifier() function
that it invokes? For that matter, how did my patch cause an access to
be made to __init data from a non-__init function?
Thanx, Paul
On 4/4/2022 2:30 AM, Paul E. McKenney wrote:
> On Mon, Apr 04, 2022 at 12:20:22AM +0800, kernel test robot wrote:
>> tree: https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/fastexp.2022.04.01a
>> head: d9f3e7d671416fdf5b61f094765754269b652db0
>> commit: c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba [109/158] rcu: Add polled expedited grace-period primitives
>> config: (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/c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba
>> 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 c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba
>> # 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+0xbcac06): Section mismatch in reference from the function ieee802154_iface_init() to the variable .init.text:.L0
>> The function ieee802154_iface_init() references
>> the variable __init .L0 .
>> This is often because ieee802154_iface_init lacks a __init
>> annotation or the annotation of .L0 is wrong.
>>
>> Note: the below error/warnings can be found in parent commit:
>> << WARNING: modpost: vmlinux.o(.text+0x432e6): Section mismatch in reference from the function dma_get_required_mask() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0xe35ca): Section mismatch in reference from the function mlock_page_drain() to the variable .init.text:.LVL125
>> << WARNING: modpost: vmlinux.o(.text+0x96a46e): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a5b4): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a5c0): Section mismatch in reference from the function rpmsg_send() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a5d4): Section mismatch in reference from the function rpmsg_sendto() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a5e8): Section mismatch in reference from the function rpmsg_send_offchannel() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a5fc): Section mismatch in reference from the function rpmsg_trysend() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a610): Section mismatch in reference from the function rpmsg_trysendto() to the variable .init.text:.L0
>> << WARNING: modpost: vmlinux.o(.text+0x96a624): Section mismatch in reference from the function rpmsg_poll() to the variable .init.text:.L0
>
> I freely confess that I have no idea what any of these error messages
> are trying to tell me. What is ".init.txt.L0"? How did my patch affect
> ieee802154_iface_init() or the register_netdevice_notifier() function
> that it invokes? For that matter, how did my patch cause an access to
> be made to __init data from a non-__init function?
>
> Thanx, Paul
Hi Paul,
Sorry for the inconvenience, only below warning was triggered by the commit:
>> All warnings (new ones prefixed by >>, old ones prefixed by <<):
>>
>>>> WARNING: modpost: vmlinux.o(.text+0xbcac06): Section mismatch in
reference from the function ieee802154_iface_init() to the variable
.init.text:.L0
the others are for reference only:
>> Note: the below error/warnings can be found in parent commit
The problem has existed for some time before your patch, we'll add it to
ignore list to avoid noise.
Best Regards,
Rong Chen
On Wed, Apr 06, 2022 at 07:11:27PM +0800, Chen, Rong A wrote:
>
>
> On 4/4/2022 2:30 AM, Paul E. McKenney wrote:
> > On Mon, Apr 04, 2022 at 12:20:22AM +0800, kernel test robot wrote:
> > > tree: https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/fastexp.2022.04.01a
> > > head: d9f3e7d671416fdf5b61f094765754269b652db0
> > > commit: c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba [109/158] rcu: Add polled expedited grace-period primitives
> > > config: (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/c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba
> > > 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 c1468fd1496363a0b2b2cb89e8ec2ba5e1dce9ba
> > > # 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+0xbcac06): Section mismatch in reference from the function ieee802154_iface_init() to the variable .init.text:.L0
> > > The function ieee802154_iface_init() references
> > > the variable __init .L0 .
> > > This is often because ieee802154_iface_init lacks a __init
> > > annotation or the annotation of .L0 is wrong.
> > >
> > > Note: the below error/warnings can be found in parent commit:
> > > << WARNING: modpost: vmlinux.o(.text+0x432e6): Section mismatch in reference from the function dma_get_required_mask() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0xe35ca): Section mismatch in reference from the function mlock_page_drain() to the variable .init.text:.LVL125
> > > << WARNING: modpost: vmlinux.o(.text+0x96a46e): Section mismatch in reference from the function rpmsg_create_ept() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a5b4): Section mismatch in reference from the function rpmsg_destroy_ept() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a5c0): Section mismatch in reference from the function rpmsg_send() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a5d4): Section mismatch in reference from the function rpmsg_sendto() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a5e8): Section mismatch in reference from the function rpmsg_send_offchannel() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a5fc): Section mismatch in reference from the function rpmsg_trysend() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a610): Section mismatch in reference from the function rpmsg_trysendto() to the variable .init.text:.L0
> > > << WARNING: modpost: vmlinux.o(.text+0x96a624): Section mismatch in reference from the function rpmsg_poll() to the variable .init.text:.L0
> >
> > I freely confess that I have no idea what any of these error messages
> > are trying to tell me. What is ".init.txt.L0"? How did my patch affect
> > ieee802154_iface_init() or the register_netdevice_notifier() function
> > that it invokes? For that matter, how did my patch cause an access to
> > be made to __init data from a non-__init function?
> >
> > Thanx, Paul
>
> Hi Paul,
>
> Sorry for the inconvenience, only below warning was triggered by the commit:
>
> >> All warnings (new ones prefixed by >>, old ones prefixed by <<):
> >>
> >>>> WARNING: modpost: vmlinux.o(.text+0xbcac06): Section mismatch in
> reference from the function ieee802154_iface_init() to the variable
> .init.text:.L0
>
> the others are for reference only:
> >> Note: the below error/warnings can be found in parent commit
>
> The problem has existed for some time before your patch, we'll add it to
> ignore list to avoid noise.
Thank you for getting back to me.
Very well, I will ignore subsequent errors that look like this. ;-)
Thanx, Paul