* [peterz-queue:x86/core 6/6] vmlinux.o: warning: objtool: __switch_to_asm+0x22: stack layout conflict in alternatives
@ 2023-02-10 15:28 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-02-10 15:28 UTC (permalink / raw)
To: Peter Zijlstra; +Cc: oe-kbuild-all
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/core
head: cc1feb4e38be192cd99f7598777ff691f8a8a20e
commit: cc1feb4e38be192cd99f7598777ff691f8a8a20e [6/6] x86: Tweak FILL_RETURN_BUFFER some more
config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20230210/202302102356.cpei3tyE-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=cc1feb4e38be192cd99f7598777ff691f8a8a20e
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue x86/core
git checkout cc1feb4e38be192cd99f7598777ff691f8a8a20e
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 olddefconfig
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302102356.cpei3tyE-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> vmlinux.o: warning: objtool: __switch_to_asm+0x22: stack layout conflict in alternatives
objdump-func vmlinux.o __switch_to_asm:
0000 0000000000003cc0 <__switch_to_asm>:
0000 3cc0: f3 0f 1e fa endbr64
0004 3cc4: 55 push %rbp
0005 3cc5: 53 push %rbx
0006 3cc6: 41 54 push %r12
0008 3cc8: 41 55 push %r13
000a 3cca: 41 56 push %r14
000c 3ccc: 41 57 push %r15
000e 3cce: 48 89 a7 58 25 00 00 mov %rsp,0x2558(%rdi)
0015 3cd5: 48 8b a6 58 25 00 00 mov 0x2558(%rsi),%rsp
001c 3cdc: 90 nop
001d 3cdd: 90 nop
001e 3cde: 90 nop
001f 3cdf: 90 nop
0020 3ce0: 90 nop
0021 3ce1: 90 nop
0022 3ce2: 90 nop
0023 3ce3: 90 nop
0024 3ce4: 90 nop
0025 3ce5: 90 nop
0026 3ce6: 90 nop
0027 3ce7: 90 nop
0028 3ce8: 90 nop
0029 3ce9: 90 nop
002a 3cea: 90 nop
002b 3ceb: 90 nop
002c 3cec: 90 nop
002d 3ced: 90 nop
002e 3cee: 90 nop
002f 3cef: 90 nop
0030 3cf0: 90 nop
0031 3cf1: 90 nop
0032 3cf2: 90 nop
0033 3cf3: 90 nop
0034 3cf4: 90 nop
0035 3cf5: 90 nop
0036 3cf6: 90 nop
0037 3cf7: 90 nop
0038 3cf8: 90 nop
0039 3cf9: 90 nop
003a 3cfa: 90 nop
003b 3cfb: 41 5f pop %r15
003d 3cfd: 41 5e pop %r14
003f 3cff: 41 5d pop %r13
0041 3d01: 41 5c pop %r12
0043 3d03: 5b pop %rbx
0044 3d04: 5d pop %rbp
0045 3d05: e9 00 00 00 00 jmp 3d0a <__switch_to_asm+0x4a> 3d06: R_X86_64_PLT32 __switch_to-0x4
004a 3d0a: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1)
0055 3d15: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1)
0060 3d20: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1)
006b 3d2b: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1)
0076 3d36: 66 2e 0f 1f 84 00 00 00 00 00 cs nopw 0x0(%rax,%rax,1)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
^ permalink raw reply [flat|nested] 2+ messages in thread* [peterz-queue:x86/core 6/6] vmlinux.o: warning: objtool: __switch_to_asm+0x22: stack layout conflict in alternatives
@ 2023-02-10 14:46 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-02-10 14:46 UTC (permalink / raw)
Cc: oe-kbuild-all, llvm
TO: Peter Zijlstra <peterz@infradead.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/core
head: cc1feb4e38be192cd99f7598777ff691f8a8a20e
commit: cc1feb4e38be192cd99f7598777ff691f8a8a20e [6/6] x86: Tweak FILL_RETURN_BUFFER some more
config: x86_64-randconfig-a001 (https://download.01.org/0day-ci/archive/20230210/202302102228.sghZkWJW-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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=cc1feb4e38be192cd99f7598777ff691f8a8a20e
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue x86/core
git checkout cc1feb4e38be192cd99f7598777ff691f8a8a20e
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302102228.sghZkWJW-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> vmlinux.o: warning: objtool: __switch_to_asm+0x22: stack layout conflict in alternatives
vmlinux.o: warning: objtool: sync_regs+0x23: call to memcpy() leaves .noinstr.text section
vmlinux.o: warning: objtool: fixup_bad_iret+0x25: call to memset() leaves .noinstr.text section
vmlinux.o: warning: objtool: __ct_user_enter+0x76: call to __kasan_check_write() leaves .noinstr.text section
vmlinux.o: warning: objtool: __ct_user_exit+0x4b: call to __kasan_check_write() leaves .noinstr.text section
objdump-func vmlinux.o __switch_to_asm:
0000 0000000000002910 <__switch_to_asm>:
0000 2910: f3 0f 1e fa endbr64
0004 2914: 55 push %rbp
0005 2915: 53 push %rbx
0006 2916: 41 54 push %r12
0008 2918: 41 55 push %r13
000a 291a: 41 56 push %r14
000c 291c: 41 57 push %r15
000e 291e: 48 89 a7 d8 23 00 00 mov %rsp,0x23d8(%rdi)
0015 2925: 48 8b a6 d8 23 00 00 mov 0x23d8(%rsi),%rsp
001c 292c: 90 nop
001d 292d: 90 nop
001e 292e: 90 nop
001f 292f: 90 nop
0020 2930: 90 nop
0021 2931: 90 nop
0022 2932: 90 nop
0023 2933: 90 nop
0024 2934: 90 nop
0025 2935: 90 nop
0026 2936: 90 nop
0027 2937: 90 nop
0028 2938: 90 nop
0029 2939: 90 nop
002a 293a: 90 nop
002b 293b: 90 nop
002c 293c: 90 nop
002d 293d: 90 nop
002e 293e: 90 nop
002f 293f: 90 nop
0030 2940: 90 nop
0031 2941: 90 nop
0032 2942: 90 nop
0033 2943: 90 nop
0034 2944: 90 nop
0035 2945: 90 nop
0036 2946: 90 nop
0037 2947: 90 nop
0038 2948: 90 nop
0039 2949: 90 nop
003a 294a: 90 nop
003b 294b: 41 5f pop %r15
003d 294d: 41 5e pop %r14
003f 294f: 41 5d pop %r13
0041 2951: 41 5c pop %r12
0043 2953: 5b pop %rbx
0044 2954: 5d pop %rbp
0045 2955: e9 00 00 00 00 jmp 295a <__switch_to_asm+0x4a> 2956: R_X86_64_PLT32 __switch_to-0x4
004a 295a: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
^ permalink raw reply [flat|nested] 2+ messages in thread
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