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Message-ID: <202212061448.geUzzh7d-lkp@intel.com>
Date: Tue, 6 Dec 2022 15:00:31 +0800
From: kernel test robot <lkp@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Borislav Petkov <bp@...e.de>,
Josh Poimboeuf <jpoimboe@...nel.org>
Subject: vmlinux.o: warning: objtool: xen_hypercall_iret+0x0: RET before
UNTRAIN
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: bce9332220bd677d83b19d21502776ad555a0e73
commit: a09a6e2399ba0595c3042b3164f3ca68a3cff33e objtool: Add entry UNRET validation
date: 5 months ago
config: x86_64-randconfig-a012-20221205
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/torvalds/linux.git/commit/?id=a09a6e2399ba0595c3042b3164f3ca68a3cff33e
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout a09a6e2399ba0595c3042b3164f3ca68a3cff33e
# save the config file
mkdir build_dir && cp config build_dir/.config
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@...el.com>
All warnings (new ones prefixed by >>):
ld: warning: arch/x86/lib/retpoline.o: missing .note.GNU-stack section implies executable stack
ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
vmlinux.o: warning: objtool: cdce925_regmap_i2c_write+0xdb: stack state mismatch: cfa1=4+120 cfa2=5+40
>> vmlinux.o: warning: objtool: xen_hypercall_iret+0x0: RET before UNTRAIN
objdump-func vmlinux.o xen_hypercall_iret:
0000 00000000000002e0 <xen_hypercall_iret>:
0000 2e0: c3 ret
0001 2e1: cc int3
0002 2e2: cc int3
0003 2e3: cc int3
0004 2e4: cc int3
0005 2e5: cc int3
0006 2e6: cc int3
0007 2e7: cc int3
0008 2e8: cc int3
0009 2e9: cc int3
000a 2ea: cc int3
000b 2eb: cc int3
000c 2ec: cc int3
000d 2ed: cc int3
000e 2ee: cc int3
000f 2ef: cc int3
0010 2f0: cc int3
0011 2f1: cc int3
0012 2f2: cc int3
0013 2f3: cc int3
0014 2f4: cc int3
0015 2f5: cc int3
0016 2f6: cc int3
0017 2f7: cc int3
0018 2f8: cc int3
0019 2f9: cc int3
001a 2fa: cc int3
001b 2fb: cc int3
001c 2fc: cc int3
001d 2fd: cc int3
001e 2fe: cc int3
001f 2ff: cc int3
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config" of type "text/plain" (170606 bytes)
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