Re: [kbuild-all] Re: [linux-next:master 7287/11993] s390x-linux-ld: topology.c:undefined reference to `__tsan_memcpy'

[Philip Li <philip.li@intel.com>]

On Mon, Oct 03, 2022 at 09:21:50AM -0700, Nathan Chancellor wrote:
> Hi Yury,
> 
> On Fri, Sep 30, 2022 at 06:24:47PM -0700, Yury Norov wrote:
> > On Sat, Oct 01, 2022 at 07:12:48AM +0800, kernel test robot wrote:
> > > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> > > head:   274d7803837da78dfc911bcda0d593412676fc20
> > > commit: aa47a7c215e79a2ade6916f163c5a17b561bce4f [7287/11993] lib/cpumask: deprecate nr_cpumask_bits
> > > config: s390-randconfig-r023-20220926
> > > compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
> > > 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
> > >         # install s390 cross compiling tool for clang build
> > >         # apt-get install binutils-s390x-linux-gnu
> > >         # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aa47a7c215e79a2ade6916f163c5a17b561bce4f
> > >         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > >         git fetch --no-tags linux-next master
> > >         git checkout aa47a7c215e79a2ade6916f163c5a17b561bce4f
> > >         # save the config file
> > >         mkdir build_dir && cp config build_dir/.config
> > >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
> > > 
> > > If you fix the issue, kindly add following tag where applicable
> > > | Reported-by: kernel test robot <lkp@intel.com>
> > > 
> > > All errors (new ones prefixed by >>):
> > > 
> > >    s390x-linux-ld: ipl.c:(.text+0x1004): undefined reference to `__tsan_memcpy'
> > >    s390x-linux-ld: ipl.c:(.text+0x1046): undefined reference to `__tsan_memset'
> > >    s390x-linux-ld: arch/s390/kernel/ipl.o: in function `reipl_fcp_scpdata_write':
> > 
> > I can't reproduce the bug. In fact, the build is broken for me on
> > next-20220930. To make the s390 image somehow building, I commented
> > out some functions that aren't found by the LD.
> 
> Sorry for the noise, this is not a kernel issue, it is a toolchain
> problem that will be fixed soon:
> 
> https://github.com/ClangBuiltLinux/linux/issues/1704
> https://lore.kernel.org/20220912094541.929856-1-elver@google.com/
> 
> I had asked the Intel folks to stop sending reports based on this build
> breakage a few times but it seems like their filter is not working
> still?

Sorry for this, we will correct the filter logic asap, it only ignores
__tsan_memset now, which should be mem* as mentioned in the link.

> 
> https://lore.kernel.org/Yx3HnuEDyFG0+G62@dev-arch.thelio-3990X/
> https://lore.kernel.org/Yy3PxL973jtEtEUK@dev-arch.thelio-3990X/
> 
> Cheers,
> Nathan
> 
> > Thanks,
> > Yury
> > 
> > diff --git a/drivers/irqchip/irq-al-fic.c b/drivers/irqchip/irq-al-fic.c
> > index 886de028a901..d696d78132a0 100644
> > --- a/drivers/irqchip/irq-al-fic.c
> > +++ b/drivers/irqchip/irq-al-fic.c
> > @@ -235,6 +235,7 @@ static struct al_fic *al_fic_wire_init(struct device_node *node,
> >         return ERR_PTR(ret);
> >  }
> > 
> > +void __iomem *of_iomap(struct device_node *np, int index);
> >  static int __init al_fic_init_dt(struct device_node *node,
> >                                  struct device_node *parent)
> >  {
> > @@ -249,7 +250,7 @@ static int __init al_fic_init_dt(struct device_node *node,
> >                 return -EINVAL;
> >         }
> > 
> > -       base = of_iomap(node, 0);
> > +       base = NULL;//of_iomap(node, 0);
> >         if (!base) {
> >                 pr_err("%s: fail to map memory\n", node->name);
> >                 return -ENOMEM;
> > diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
> > index 7633b227b2ca..4e4c9d9743bf 100644
> > --- a/drivers/net/ethernet/altera/altera_tse_main.c
> > +++ b/drivers/net/ethernet/altera/altera_tse_main.c
> > @@ -1122,8 +1122,8 @@ static int request_and_map(struct platform_device *pdev, const char *name,
> >                 return -EBUSY;
> >         }
> > 
> > -       *ptr = devm_ioremap(device, region->start,
> > -                                   resource_size(region));
> > +       *ptr = NULL;//devm_ioremap(device, region->start,
> > +               //                  resource_size(region));
> >         if (*ptr == NULL) {
> >                 dev_err(device, "ioremap of %s failed!", name);
> >                 return -ENOMEM;
> > diff --git a/fs/afs/dir.c b/fs/afs/dir.c
> > index 230c2d19116d..9f88be3c2b08 100644
> > --- a/fs/afs/dir.c
> > +++ b/fs/afs/dir.c
> > @@ -49,6 +49,7 @@ static bool afs_dir_dirty_folio(struct address_space *mapping,
> >                 struct folio *folio)
> >  {
> >         BUG(); /* This should never happen. */
> > +       return false;
> >  }
> > 
> >  const struct file_operations afs_dir_file_operations = {
> > 
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