On Mon, Nov 24, 2025 at 08:15:46PM +0100, Thomas Gleixner wrote: > On Tue, Nov 25 2025 at 01:37, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git > > core/rseq > > head: 21782b3a5cd40892cb2995aa1ec3e74dd1112f1d > > commit: abc850e7616c91ebaa3f5ba3617ab0a104d45039 [25/39] rseq: Provide and > > use rseq_update_user_cs() > > config: powerpc-randconfig-002-20251124 > > (https://download.01.org/0day-ci/archive/20251125/[email protected]/config) > > compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project > > 7cbf1a2591520c2491aa35339f227775f4d3adf6) > > reproduce (this is a W=1 build): > > (https://download.01.org/0day-ci/archive/20251125/[email protected]/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 <[email protected]> > > | Closes: > > https://lore.kernel.org/oe-kbuild-all/[email protected]/ > > > > All errors (new ones prefixed by >>): > > > > In file included from kernel/rseq.c:75: > >>> include/linux/rseq_entry.h:132:3: error: invalid operand for instruction > > unsafe_get_user(start_ip, &ucs->start_ip, efault); > > ^ > > include/linux/uaccess.h:606:2: note: expanded from macro > > 'unsafe_get_user' > > arch_unsafe_get_user(x, ptr, local_label); \ > > ^ > > arch/powerpc/include/asm/uaccess.h:458:2: note: expanded from macro > > 'arch_unsafe_get_user' > > __get_user_size_goto(__gu_val, __gu_addr, sizeof(*(p)), e); \ > > ^ > > arch/powerpc/include/asm/uaccess.h:282:2: note: expanded from macro > > '__get_user_size_goto' > > __get_user_size_allowed(x, ptr, size, __gus_retval); \ > > ^ > > arch/powerpc/include/asm/uaccess.h:273:10: note: expanded from macro > > '__get_user_size_allowed' > > case 8: __get_user_asm2(x, (u64 __user *)ptr, retval); break; \ > > ^ > > arch/powerpc/include/asm/uaccess.h:256:4: note: expanded from macro > > '__get_user_asm2' > > " li %1+1,0\n" \ > > ^ > > <inline asm>:7:5: note: instantiated into assembly here > > li 31+1,0 > > Definitely not a problem of tip core/rseq. It just ends up in > __get_user_asm2() and then the compiler gets unhappy about the PowerPC > inline assembly for whatever reason.
Thanks, got it, I will configure the bot to avoid sending further report for this. > > Thanks, > > tglx > > >
