* [linux-stable-rc:linux-4.19.y 1181/1498] ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
@ 2021-08-05 20:23 kernel test robot
2021-08-05 23:23 ` Nick Desaulniers
0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2021-08-05 20:23 UTC (permalink / raw)
To: Nick Desaulniers
Cc: clang-built-linux, kbuild-all, linux-kernel, Greg Kroah-Hartman,
Andrew Morton, Linux Memory Management List
[-- Attachment #1: Type: text/plain, Size: 1483 bytes --]
Hi Nick,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
head: 7457eed4b647560ae1b1800c295efc5f1db22e4b
commit: 7c29fd831799d09474dfdae556207b7102647a45 [1181/1498] lib/string.c: implement stpcpy
config: x86_64-randconfig-r024-20210805 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 31a71a393f65d9e07b5b0756fef9dd16690950ee)
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/stable/linux-stable-rc.git/commit/?id=7c29fd831799d09474dfdae556207b7102647a45
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc linux-4.19.y
git checkout 7c29fd831799d09474dfdae556207b7102647a45
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
---
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: 32095 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-stable-rc:linux-4.19.y 1181/1498] ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
2021-08-05 20:23 [linux-stable-rc:linux-4.19.y 1181/1498] ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined! kernel test robot
@ 2021-08-05 23:23 ` Nick Desaulniers
2021-08-06 0:11 ` Nathan Chancellor
0 siblings, 1 reply; 4+ messages in thread
From: Nick Desaulniers @ 2021-08-05 23:23 UTC (permalink / raw)
To: kernel test robot
Cc: clang-built-linux, kbuild-all, linux-kernel, Greg Kroah-Hartman,
Andrew Morton, Linux Memory Management List
On Thu, Aug 5, 2021 at 1:24 PM kernel test robot <lkp@intel.com> wrote:
>
> Hi Nick,
>
> First bad commit (maybe != root cause):
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> head: 7457eed4b647560ae1b1800c295efc5f1db22e4b
> commit: 7c29fd831799d09474dfdae556207b7102647a45 [1181/1498] lib/string.c: implement stpcpy
> config: x86_64-randconfig-r024-20210805 (attached as .config)
> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 31a71a393f65d9e07b5b0756fef9dd16690950ee)
> 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/stable/linux-stable-rc.git/commit/?id=7c29fd831799d09474dfdae556207b7102647a45
> git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> git fetch --no-tags linux-stable-rc linux-4.19.y
> git checkout 7c29fd831799d09474dfdae556207b7102647a45
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
> >> ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
^ I'm actively trying to improve these diagnostics in LLVM at the
moment. Hopefully that will make this report clearer!
https://reviews.llvm.org/D106030
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
--
Thanks,
~Nick Desaulniers
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-stable-rc:linux-4.19.y 1181/1498] ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
2021-08-05 23:23 ` Nick Desaulniers
@ 2021-08-06 0:11 ` Nathan Chancellor
2021-08-06 4:34 ` Greg Kroah-Hartman
0 siblings, 1 reply; 4+ messages in thread
From: Nathan Chancellor @ 2021-08-06 0:11 UTC (permalink / raw)
To: Nick Desaulniers, Greg Kroah-Hartman, Sasha Levin
Cc: kernel test robot, clang-built-linux, kbuild-all, linux-kernel,
Andrew Morton, Linux Memory Management List, stable
On Thu, Aug 05, 2021 at 04:23:40PM -0700, Nick Desaulniers wrote:
> On Thu, Aug 5, 2021 at 1:24 PM kernel test robot <lkp@intel.com> wrote:
> >
> > Hi Nick,
> >
> > First bad commit (maybe != root cause):
> >
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> > head: 7457eed4b647560ae1b1800c295efc5f1db22e4b
> > commit: 7c29fd831799d09474dfdae556207b7102647a45 [1181/1498] lib/string.c: implement stpcpy
> > config: x86_64-randconfig-r024-20210805 (attached as .config)
> > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 31a71a393f65d9e07b5b0756fef9dd16690950ee)
> > 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/stable/linux-stable-rc.git/commit/?id=7c29fd831799d09474dfdae556207b7102647a45
> > git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> > git fetch --no-tags linux-stable-rc linux-4.19.y
> > git checkout 7c29fd831799d09474dfdae556207b7102647a45
> > # save the attached .config to linux build tree
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@intel.com>
> >
> > All errors (new ones prefixed by >>):
> >
> > >> ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
>
> ^ I'm actively trying to improve these diagnostics in LLVM at the
> moment. Hopefully that will make this report clearer!
> https://reviews.llvm.org/D106030
It does help :)
drivers/gpu/drm/i915/intel_engine_cs.c:466:2: error: call to '__compiletime_assert_491' declared with attribute error: BUILD_BUG_ON failed: (execlists_num_ports(execlists)) == 0 || (((execlists_num_ports(execlists)) & ((execlists_num_ports(execlists)) - 1)) != 0)
BUILD_BUG_ON_NOT_POWER_OF_2(execlists_num_ports(execlists));
^
include/linux/build_bug.h:21:2: note: expanded from macro 'BUILD_BUG_ON_NOT_POWER_OF_2'
BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0))
^
include/linux/build_bug.h:69:2: note: expanded from macro 'BUILD_BUG_ON'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^
include/linux/build_bug.h:45:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler.h:336:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler.h:329:4: note: expanded from macro '__compiletime_assert'
prefix ## suffix(); \
^
<scratch space>:83:1: note: expanded from here
__compiletime_assert_491
^
4 warnings and 1 error generated.
As it turns out, this has come up before and it was fixed by commit
410ed5731a65 ("drm/i915: Ensure intel_engine_init_execlist() builds with
Clang").
Greg and Sasha, could this be picked up for 4.19?
Cheers,
Nathan
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-stable-rc:linux-4.19.y 1181/1498] ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
2021-08-06 0:11 ` Nathan Chancellor
@ 2021-08-06 4:34 ` Greg Kroah-Hartman
0 siblings, 0 replies; 4+ messages in thread
From: Greg Kroah-Hartman @ 2021-08-06 4:34 UTC (permalink / raw)
To: Nathan Chancellor
Cc: Nick Desaulniers, Sasha Levin, kernel test robot,
clang-built-linux, kbuild-all, linux-kernel, Andrew Morton,
Linux Memory Management List, stable
On Thu, Aug 05, 2021 at 05:11:10PM -0700, Nathan Chancellor wrote:
> On Thu, Aug 05, 2021 at 04:23:40PM -0700, Nick Desaulniers wrote:
> > On Thu, Aug 5, 2021 at 1:24 PM kernel test robot <lkp@intel.com> wrote:
> > >
> > > Hi Nick,
> > >
> > > First bad commit (maybe != root cause):
> > >
> > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y
> > > head: 7457eed4b647560ae1b1800c295efc5f1db22e4b
> > > commit: 7c29fd831799d09474dfdae556207b7102647a45 [1181/1498] lib/string.c: implement stpcpy
> > > config: x86_64-randconfig-r024-20210805 (attached as .config)
> > > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 31a71a393f65d9e07b5b0756fef9dd16690950ee)
> > > 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/stable/linux-stable-rc.git/commit/?id=7c29fd831799d09474dfdae556207b7102647a45
> > > git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> > > git fetch --no-tags linux-stable-rc linux-4.19.y
> > > git checkout 7c29fd831799d09474dfdae556207b7102647a45
> > > # save the attached .config to linux build tree
> > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
> > >
> > > If you fix the issue, kindly add following tag as appropriate
> > > Reported-by: kernel test robot <lkp@intel.com>
> > >
> > > All errors (new ones prefixed by >>):
> > >
> > > >> ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined!
> >
> > ^ I'm actively trying to improve these diagnostics in LLVM at the
> > moment. Hopefully that will make this report clearer!
> > https://reviews.llvm.org/D106030
>
> It does help :)
>
> drivers/gpu/drm/i915/intel_engine_cs.c:466:2: error: call to '__compiletime_assert_491' declared with attribute error: BUILD_BUG_ON failed: (execlists_num_ports(execlists)) == 0 || (((execlists_num_ports(execlists)) & ((execlists_num_ports(execlists)) - 1)) != 0)
> BUILD_BUG_ON_NOT_POWER_OF_2(execlists_num_ports(execlists));
> ^
> include/linux/build_bug.h:21:2: note: expanded from macro 'BUILD_BUG_ON_NOT_POWER_OF_2'
> BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0))
> ^
> include/linux/build_bug.h:69:2: note: expanded from macro 'BUILD_BUG_ON'
> BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
> ^
> include/linux/build_bug.h:45:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
> #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> ^
> note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
> include/linux/compiler.h:336:2: note: expanded from macro '_compiletime_assert'
> __compiletime_assert(condition, msg, prefix, suffix)
> ^
> include/linux/compiler.h:329:4: note: expanded from macro '__compiletime_assert'
> prefix ## suffix(); \
> ^
> <scratch space>:83:1: note: expanded from here
> __compiletime_assert_491
> ^
> 4 warnings and 1 error generated.
>
> As it turns out, this has come up before and it was fixed by commit
> 410ed5731a65 ("drm/i915: Ensure intel_engine_init_execlist() builds with
> Clang").
>
> Greg and Sasha, could this be picked up for 4.19?
Now queued up, thanks.
greg k-h
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-08-06 4:35 UTC | newest]
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2021-08-05 20:23 [linux-stable-rc:linux-4.19.y 1181/1498] ERROR: "__compiletime_assert_491" [drivers/gpu/drm/i915/i915.ko] undefined! kernel test robot
2021-08-05 23:23 ` Nick Desaulniers
2021-08-06 0:11 ` Nathan Chancellor
2021-08-06 4:34 ` Greg Kroah-Hartman
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