On Wed, Dec 10, 2025 at 06:13:17PM +0900, Ard Biesheuvel wrote: > On Wed, 10 Dec 2025 at 17:41, kernel test robot <[email protected]> wrote: > > > > > > > > Hello, > > > > kernel test robot noticed > > "WARNING:at_kernel/locking/rwsem.c:#__down_write_trylock" on: > > > > commit: 6f473fefec79a8ba24013a5676a93934ee5ac922 ("[PATCH] efi: pstore: > > Support late setup with TEE-backed efivars ops") > > url: > > https://github.com/intel-lab-lkp/linux/commits/Val-Packett/efi-pstore-Support-late-setup-with-TEE-backed-efivars-ops/20251203-123406 > > base: https://git.kernel.org/cgit/linux/kernel/git/kees/linux.git > > for-next/pstore > > patch link: > > https://lore.kernel.org/all/[email protected]/ > > patch subject: [PATCH] efi: pstore: Support late setup with TEE-backed > > efivars ops > > > > in testcase: boot > > > > config: i386-randconfig-015-20251207 > > compiler: clang-20 > > test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G > > > > (please refer to attached dmesg/kmsg for entire log/backtrace) > > > > > > +---------------------------------------------------------+------------+------------+ > > | | b692553573 | > > 6f473fefec | > > +---------------------------------------------------------+------------+------------+ > > | WARNING:at_kernel/locking/rwsem.c:#__down_write_trylock | 0 | 18 > > | > > | EIP:__down_write_trylock | 0 | 18 > > | > > | WARNING:at_kernel/locking/rwsem.c:#up_write | 0 | 18 > > | > > | EIP:up_write | 0 | 18 > > | > > +---------------------------------------------------------+------------+------------+ > > > > This seems to be a non-EFI boot, in which case the notifier chain is > never initialized. > > Kees, can you drop this from your branch so we can get it fixed? I > also had some review feedback that hasn't been taken into account yet.
I didn't take it -- this appears to be patch-based 0day randconfig. (I'd rather it went via EFI anyway, too.) -Kees -- Kees Cook
