Re: [PATCH 1/2] rust: kasan: do not pass -Zsanitizer-recover

[kernel test robot]

Hi Alice,

kernel test robot noticed the following build errors:

[auto build test ERROR on 1f318b96cc84d7c2ab792fcc0bfd42a7ca890681]

url:    https://github.com/intel-lab-lkp/linux/commits/Alice-Ryhl/rust-kasan-do-not-pass-Zsanitizer-recover/20260326-213339
base:   1f318b96cc84d7c2ab792fcc0bfd42a7ca890681
patch link:    https://lore.kernel.org/r/20260325-kasan-rust-sw-tags-v1-1-7d3a765a72aa%40google.com
patch subject: [PATCH 1/2] rust: kasan: do not pass -Zsanitizer-recover
config: x86_64-randconfig-071-20260327 (https://download.01.org/0day-ci/archive/20260327/202603271853.RhfDTdOp-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260327/202603271853.RhfDTdOp-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/r/202603271853.RhfDTdOp-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __asan_report_load8
   >>> referenced by kvec.rs:847 (rust/kernel/alloc/kvec.rs:847)
   >>>               samples/rust/rust_soc.o:(core::ptr::drop_in_place::<kernel::str::CString>) in archive vmlinux.a
   >>> referenced by kvec.rs:847 (rust/kernel/alloc/kvec.rs:847)
   >>>               samples/rust/rust_soc.o:(core::ptr::drop_in_place::<kernel::str::CString>) in archive vmlinux.a
   >>> referenced by aref.rs:170 (rust/kernel/sync/aref.rs:170)
   >>>               samples/rust/rust_soc.o:(<kernel::driver::Registration<kernel::platform::Adapter<rust_soc::SampleSocDriver>>>::post_unbind_callback) in archive vmlinux.a
   >>> referenced 3034 more times
--
>> ld.lld: error: undefined symbol: __asan_report_store8
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
   >>>               samples/rust/rust_soc.o:(<kernel::platform::Adapter<rust_soc::SampleSocDriver>>::probe_callback) in archive vmlinux.a
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
   >>>               samples/rust/rust_soc.o:(<kernel::platform::Adapter<rust_soc::SampleSocDriver>>::probe_callback) in archive vmlinux.a
   >>> referenced by rust_configfs.rs:86 (samples/rust/rust_configfs.rs:86)
   >>>               samples/rust/rust_configfs.o:(<rust_configfs::Configuration as kernel::configfs::GroupOperations>::make_group) in archive vmlinux.a
   >>> referenced 1783 more times
--
>> ld.lld: error: undefined symbol: __asan_report_load16
   >>> referenced by num.rs:648 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/fmt/num.rs:648)
   >>>               rust/core.o:(<u128 as core::fmt::Display>::fmt) in archive vmlinux.a
   >>> referenced by num.rs:655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/fmt/num.rs:655)
   >>>               rust/core.o:(<i128 as core::fmt::Display>::fmt) in archive vmlinux.a
   >>> referenced by niche_types.rs:100 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/num/niche_types.rs:100)
   >>>               rust/core.o:(<core::num::niche_types::NonZeroU128Inner as core::fmt::Debug>::fmt) in archive vmlinux.a
   >>> referenced 9 more times
--
>> ld.lld: error: undefined symbol: __asan_report_store16
   >>> referenced by option.rs:1279 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/option.rs:1279)
   >>>               rust/core.o:(<core::num::nonzero::NonZero<u128> as core::str::traits::FromStr>::from_str) in archive vmlinux.a
   >>> referenced by option.rs:1279 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/option.rs:1279)
   >>>               rust/core.o:(<core::num::nonzero::NonZero<i128> as core::str::traits::FromStr>::from_str) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: __asan_report_load1
   >>> referenced by c_str.rs:416 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ffi/c_str.rs:416)
   >>>               samples/rust/rust_configfs.o:(<kernel::configfs::GroupOperationsVTable<rust_configfs::Configuration, rust_configfs::Child>>::make_group) in archive vmlinux.a
   >>> referenced by c_str.rs:416 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ffi/c_str.rs:416)
   >>>               samples/rust/rust_configfs.o:(<kernel::configfs::GroupOperationsVTable<rust_configfs::Child, rust_configfs::GrandChild>>::make_group) in archive vmlinux.a
   >>> referenced by revocable.rs:218 (rust/kernel/revocable.rs:218)
   >>>               samples/rust/rust_driver_auxiliary.o:(core::ptr::drop_in_place::<kernel::sync::arc::Arc<kernel::revocable::Revocable<kernel::auxiliary::Registration>>>) in archive vmlinux.a
   >>> referenced 890 more times
--
>> ld.lld: error: undefined symbol: __asan_report_store4
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
   >>>               samples/rust/rust_configfs.o:(<kernel::configfs::GroupOperationsVTable<rust_configfs::Configuration, rust_configfs::Child>>::make_group) in archive vmlinux.a
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
   >>>               samples/rust/rust_configfs.o:(<kernel::configfs::GroupOperationsVTable<rust_configfs::Child, rust_configfs::GrandChild>>::make_group) in archive vmlinux.a
   >>> referenced by result.rs:2050 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/result.rs:2050)
   >>>               samples/rust/rust_configfs.o:(<rust_configfs::Configuration as kernel::configfs::GroupOperations>::make_group) in archive vmlinux.a
   >>> referenced 539 more times
--
>> ld.lld: error: undefined symbol: __asan_report_store1
   >>> referenced by atomic.rs:3845 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/sync/atomic.rs:3845)
   >>>               samples/rust/rust_driver_auxiliary.o:(core::ptr::drop_in_place::<kernel::devres::Devres<kernel::auxiliary::Registration>>) in archive vmlinux.a
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
>> >>>               samples/rust/rust_driver_auxiliary.o:(pin_init::pin_init_scope::<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error, <kernel::auxiliary::Registration>::new::{closure#0}, core::result::Result<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error>>::{closure#0}) in archive vmlinux.a
   >>> referenced by atomic.rs:3845 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/sync/atomic.rs:3845)
   >>>               samples/rust/rust_driver_pci.o:(core::ptr::drop_in_place::<kernel::devres::Devres<kernel::pci::io::Bar<16>>>) in archive vmlinux.a
   >>> referenced 356 more times
--
>> ld.lld: error: undefined symbol: __asan_report_load4
   >>> referenced by lib.rs:1300 (rust/pin-init/src/lib.rs:1300)
>> >>>               samples/rust/rust_driver_auxiliary.o:(pin_init::pin_init_scope::<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error, <kernel::auxiliary::Registration>::new::{closure#0}, core::result::Result<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error>>::{closure#0}) in archive vmlinux.a
   >>> referenced by io.rs:261 (rust/kernel/pci/io.rs:261)
   >>>               samples/rust/rust_driver_pci.o:(core::ptr::drop_in_place::<kernel::devres::Devres<kernel::pci::io::Bar<16>>>) in archive vmlinux.a
   >>> referenced by io.rs:261 (rust/kernel/pci/io.rs:261)
   >>>               samples/rust/rust_driver_pci.o:(core::ptr::drop_in_place::<kernel::sync::arc::Arc<kernel::revocable::Revocable<kernel::pci::io::Bar<16>>>>) in archive vmlinux.a
   >>> referenced 320 more times
--
>> ld.lld: error: undefined symbol: __asan_report_store_n
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
>> >>>               samples/rust/rust_driver_auxiliary.o:(pin_init::pin_init_scope::<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error, <kernel::auxiliary::Registration>::new::{closure#0}, core::result::Result<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error>>::{closure#0}) in archive vmlinux.a
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
>> >>>               samples/rust/rust_driver_auxiliary.o:(pin_init::pin_init_scope::<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error, <kernel::auxiliary::Registration>::new::{closure#0}, core::result::Result<kernel::devres::Devres<kernel::auxiliary::Registration>, kernel::error::Error>>::{closure#0}) in archive vmlinux.a
   >>> referenced by mod.rs:1655 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:1655)
   >>>               samples/rust/rust_driver_pci.o:(<kernel::pci::Adapter<rust_driver_pci::SampleDriver>>::probe_callback) in archive vmlinux.a
   >>> referenced 105 more times
--
>> ld.lld: error: undefined symbol: __asan_report_load2
   >>> referenced by pci.rs:372 (rust/kernel/pci.rs:372)
   >>>               samples/rust/rust_driver_pci.o:(<kernel::pci::Adapter<rust_driver_pci::SampleDriver>>::probe_callback) in archive vmlinux.a
   >>> referenced by pci.rs:381 (rust/kernel/pci.rs:381)
   >>>               samples/rust/rust_driver_pci.o:(<kernel::pci::Adapter<rust_driver_pci::SampleDriver>>::probe_callback) in archive vmlinux.a
   >>> referenced by pci.rs:372 (rust/kernel/pci.rs:372)
   >>>               samples/rust/rust_driver_auxiliary.o:(<rust_driver_auxiliary::AuxiliaryDriver as kernel::auxiliary::Driver>::probe) in archive vmlinux.a
   >>> referenced 54 more times
--
>> ld.lld: error: undefined symbol: __asan_report_load_n
   >>> referenced by mod.rs:3753 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/intrinsics/mod.rs:3753)
   >>>               drivers/android/binder/rust_binder_main.o:(<[u8]>::copy_from_slice) in archive vmlinux.a
   >>> referenced by mod.rs:3753 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/intrinsics/mod.rs:3753)
   >>>               drivers/android/binder/rust_binder_main.o:(<[u8]>::copy_from_slice) in archive vmlinux.a
   >>> referenced by mod.rs:864 (/opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/mod.rs:864)
   >>>               drivers/android/binder/rust_binder_main.o:(<rust_binder_main::range_alloc::tree::Descriptor<rust_binder_main::allocation::AllocationInfo>>::try_change_state::<<rust_binder_main::range_alloc::tree::TreeRangeAllocator<rust_binder_main::allocation::AllocationInfo>>::reservation_abort::{closure#1}, (rust_binder_main::range_alloc::Reservation, kernel::rbtree::RBTreeNodeReservation<(usize, usize), ()>)>) in archive vmlinux.a
   >>> referenced 81 more times
..

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