On 10/1/22 05:05, kernel test robot wrote:
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 274d7803837da78dfc911bcda0d593412676fc20
commit: c0a581d7126c0bbc96163276f585fd7b4e4d8d0e [10260/11993] tracing: Disable interrupt or preemption before acquiring arch_spinlock_t
config: loongarch-randconfig-s031-20220925
compiler: loongarch64-linux-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=c0a581d7126c0bbc96163276f585fd7b4e4d8d0e
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout c0a581d7126c0bbc96163276f585fd7b4e4d8d0e
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=loongarch SHELL=/bin/bash kernel/trace/ mm/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
sparse warnings: (new ones prefixed by >>)
kernel/trace/trace.c:406:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct trace_export **list @@ got struct trace_export [noderef] __rcu ** @@
kernel/trace/trace.c:406:28: sparse: expected struct trace_export **list
kernel/trace/trace.c:406:28: sparse: got struct trace_export [noderef] __rcu **
kernel/trace/trace.c:420:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct trace_export **list @@ got struct trace_export [noderef] __rcu ** @@
kernel/trace/trace.c:420:33: sparse: expected struct trace_export **list
kernel/trace/trace.c:420:33: sparse: got struct trace_export [noderef] __rcu **
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got unsigned int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got unsigned int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got unsigned int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got unsigned int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got int [noderef] __percpu *
kernel/trace/trace.c:2430:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@
kernel/trace/trace.c:2430:9: sparse: expected void *ptr
kernel/trace/trace.c:2430:9: sparse: got int [noderef] __percpu *
kernel/trace/trace.c:2879:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct event_filter *filter @@ got struct event_filter [noderef] __rcu *filter @@
kernel/trace/trace.c:2879:38: sparse: expected struct event_filter *filter
kernel/trace/trace.c:2879:38: sparse: got struct event_filter [noderef] __rcu *filter
kernel/trace/trace.c:7354:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got struct ring_buffer_event *[noderef] __percpu * @@
kernel/trace/trace.c:7354:20: sparse: expected void *ptr
kernel/trace/trace.c:7354:20: sparse: got struct ring_buffer_event *[noderef] __percpu *
kernel/trace/trace.c:7354:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got struct ring_buffer_event *[noderef] __percpu * @@
kernel/trace/trace.c:7354:20: sparse: expected void *ptr
kernel/trace/trace.c:7354:20: sparse: got struct ring_buffer_event *[noderef] __percpu *
kernel/trace/trace.c:7354:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got struct ring_buffer_event *[noderef] __percpu * @@
kernel/trace/trace.c:7354:20: sparse: expected void *ptr
kernel/trace/trace.c:7354:20: sparse: got struct ring_buffer_event *[noderef] __percpu *
kernel/trace/trace.c:7354:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got struct ring_buffer_event *[noderef] __percpu * @@
kernel/trace/trace.c:7354:20: sparse: expected void *ptr
kernel/trace/trace.c:7354:20: sparse: got struct ring_buffer_event *[noderef] __percpu *
kernel/trace/trace.c:360:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/trace.c:360:9: sparse: struct trace_export [noderef] __rcu *
kernel/trace/trace.c:360:9: sparse: struct trace_export *
kernel/trace/trace.c:375:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/trace.c:375:9: sparse: struct trace_export [noderef] __rcu *
kernel/trace/trace.c:375:9: sparse: struct trace_export *
vim +2430 kernel/trace/trace.c
2410
2411 static int trace_save_cmdline(struct task_struct *tsk)
2412 {
2413 unsigned tpid, idx;
2414
2415 /* treat recording of idle task as a success */
2416 if (!tsk->pid)
2417 return 1;
2418
2419 tpid = tsk->pid & (PID_MAX_DEFAULT - 1);
2420
2421 /*
2422 * It's not the end of the world if we don't get
2423 * the lock, but we also don't want to spin
2424 * nor do we want to disable interrupts,
2425 * so if we miss here, then better luck next time.
2426 *
2427 * This is called within the scheduler and wake up, so interrupts
2428 * had better been disabled and run queue lock been held.
2429 */
2430 lockdep_assert_preemption_disabled();
This assertion has been present in other parts of the kernel for a long
time. The given config file is for loongarch64-linux-gcc. Does that
happen in other more tested arches like x86 or arm64? If not, it is a
probably a bug in the arch specific code in how it defines different
address spaces as I saw other similar different address spaces warnings.
-Longman
