* vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
@ 2021-08-22 5:39 ` kernel test robot
0 siblings, 0 replies; 8+ messages in thread
From: kernel test robot @ 2021-08-22 5:39 UTC (permalink / raw)
To: Borislav Petkov; +Cc: kbuild-all, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1855 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef
commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
date: 11 months ago
config: x86_64-buildonly-randconfig-r003-20210822 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 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 >>):
>> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section
vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
---
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: 35549 bytes --]
^ permalink raw reply [flat|nested] 8+ messages in thread* vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
@ 2021-08-22 5:39 ` kernel test robot
0 siblings, 0 replies; 8+ messages in thread
From: kernel test robot @ 2021-08-22 5:39 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 1887 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef
commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
date: 11 months ago
config: x86_64-buildonly-randconfig-r003-20210822 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 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 >>):
>> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section
vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 35549 bytes --]
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
2021-08-22 5:39 ` kernel test robot
@ 2021-09-02 19:35 ` Borislav Petkov
-1 siblings, 0 replies; 8+ messages in thread
From: Borislav Petkov @ 2021-09-02 19:35 UTC (permalink / raw)
To: kernel test robot; +Cc: kbuild-all, linux-kernel, x86-ml
On Sun, Aug 22, 2021 at 01:39:40PM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef
> commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
> date: 11 months ago
> config: x86_64-buildonly-randconfig-r003-20210822 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> reproduce (this is a W=1 build):
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> # save the attached .config to linux build tree
> mkdir build_dir
> make W=1 O=build_dir ARCH=x86_64 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 >>):
>
> >> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section
> vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section
> vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
The sanitizer stuff is being NOPed out with newer compilers, says
peterz. And I can confirm after testing with your .config and with
gcc-11.
The mce_panic() thing I'm working on.
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
@ 2021-09-02 19:35 ` Borislav Petkov
0 siblings, 0 replies; 8+ messages in thread
From: Borislav Petkov @ 2021-09-02 19:35 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2196 bytes --]
On Sun, Aug 22, 2021 at 01:39:40PM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef
> commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
> date: 11 months ago
> config: x86_64-buildonly-randconfig-r003-20210822 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> reproduce (this is a W=1 build):
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> # save the attached .config to linux build tree
> mkdir build_dir
> make W=1 O=build_dir ARCH=x86_64 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 >>):
>
> >> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section
> vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section
> vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
The sanitizer stuff is being NOPed out with newer compilers, says
peterz. And I can confirm after testing with your .config and with
gcc-11.
The mce_panic() thing I'm working on.
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
2021-09-02 19:35 ` Borislav Petkov
@ 2021-09-03 9:23 ` Peter Zijlstra
-1 siblings, 0 replies; 8+ messages in thread
From: Peter Zijlstra @ 2021-09-03 9:23 UTC (permalink / raw)
To: Borislav Petkov; +Cc: kernel test robot, kbuild-all, linux-kernel, x86-ml
On Thu, Sep 02, 2021 at 09:35:12PM +0200, Borislav Petkov wrote:
> On Sun, Aug 22, 2021 at 01:39:40PM +0800, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef
> > commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
> > date: 11 months ago
> > config: x86_64-buildonly-randconfig-r003-20210822 (attached as .config)
> > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> > reproduce (this is a W=1 build):
> > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> > # save the attached .config to linux build tree
> > mkdir build_dir
> > make W=1 O=build_dir ARCH=x86_64 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 >>):
> >
> > >> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
>
> The sanitizer stuff is being NOPed out with newer compilers, says
> peterz. And I can confirm after testing with your .config and with
> gcc-11.
So I was wondering why they'd show up in any case, since objtool is
supposed to NOP them, but then I remembered I still have this patch
pending:
https://lore.kernel.org/r/20210624095147.818783799@infradead.org
Which I suspect will cure that for older GCC.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
@ 2021-09-03 9:23 ` Peter Zijlstra
0 siblings, 0 replies; 8+ messages in thread
From: Peter Zijlstra @ 2021-09-03 9:23 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2430 bytes --]
On Thu, Sep 02, 2021 at 09:35:12PM +0200, Borislav Petkov wrote:
> On Sun, Aug 22, 2021 at 01:39:40PM +0800, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef
> > commit: e100777016fdf6ec3a9d7c1773b15a2b5eca6c55 x86/mce: Annotate mce_rd/wrmsrl() with noinstr
> > date: 11 months ago
> > config: x86_64-buildonly-randconfig-r003-20210822 (attached as .config)
> > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> > reproduce (this is a W=1 build):
> > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout e100777016fdf6ec3a9d7c1773b15a2b5eca6c55
> > # save the attached .config to linux build tree
> > mkdir build_dir
> > make W=1 O=build_dir ARCH=x86_64 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 >>):
> >
> > >> vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: do_machine_check()+0xe1a: call to mce_panic.isra.0() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: exc_machine_check()+0x1af: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: lock_is_held_type()+0x3c: call to check_flags() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: __context_tracking_enter()+0x9d: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
> > vmlinux.o: warning: objtool: __context_tracking_exit()+0x42: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
>
> The sanitizer stuff is being NOPed out with newer compilers, says
> peterz. And I can confirm after testing with your .config and with
> gcc-11.
So I was wondering why they'd show up in any case, since objtool is
supposed to NOP them, but then I remembered I still have this patch
pending:
https://lore.kernel.org/r/20210624095147.818783799(a)infradead.org
Which I suspect will cure that for older GCC.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section
2021-09-03 9:23 ` Peter Zijlstra
@ 2021-09-03 9:54 ` Borislav Petkov
-1 siblings, 0 replies; 8+ messages in thread
From: Borislav Petkov @ 2021-09-03 9:54 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Borislav Petkov, kernel test robot, kbuild-all, linux-kernel, x86-ml
On Fri, Sep 03, 2021 at 11:23:36AM +0200, Peter Zijlstra wrote:
> So I was wondering why they'd show up in any case, since objtool is
> supposed to NOP them, but then I remembered I still have this patch
> pending:
>
> https://lore.kernel.org/r/20210624095147.818783799@infradead.org
>
> Which I suspect will cure that for older GCC.
Yah, works with gcc-10 here too.
Tested-by: Borislav Petkov <bp@suse.de>
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2021-09-03 9:54 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-22 5:39 vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace_pc() leaves .noinstr.text section kernel test robot
2021-08-22 5:39 ` kernel test robot
2021-09-02 19:35 ` Borislav Petkov
2021-09-02 19:35 ` Borislav Petkov
2021-09-03 9:23 ` Peter Zijlstra
2021-09-03 9:23 ` Peter Zijlstra
2021-09-03 9:54 ` Borislav Petkov
2021-09-03 9:54 ` Borislav Petkov
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