[jpoimboe:klp-build-arm64 14/35] vmlinux.o: warning: objtool: sync_regs+0x0: stack state mismatch: reg1[16]=-2-8 reg2[16]=-1+0

kernel test robot
2026-04-07T03:58:50Z

::::::
:::::: Manual check reason: "only suspicious fbc files changed"
::::::

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Josh Poimboeuf <jpoimboe@kernel.org>

tree: https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git klp-build-arm64
head: 96a27804fbb34c0e19f217848a8cbb91841bcc35
commit: 34289a9c265ced49097f0b40855c8b19a0cd62e9 [14/35] objtool: Don't copy insn->sym for alternative replacements
:::::: branch date: 6 hours ago
:::::: commit date: 6 hours ago
config: x86_64-randconfig-072-20260405 (https://download.01.org/0day-ci/archive/20260405/202604051228.dMiD9PgD-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.4.0-5) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260405/202604051228.dMiD9PgD-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202604051228.dMiD9PgD-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> vmlinux.o: warning: objtool: sync_regs+0x0: stack state mismatch: reg1[16]=-2-8 reg2[16]=-1+0

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