tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9aaeb87ce1e966169a57f53a02ba05b30880ffb8 commit: 07814a9439a3b03d79a1001614b5bc1cab69bcec [104/10296] sched_ext: Print debug dump after an error exit config: loongarch-randconfig-r131-20240906 (https://download.01.org/0day-ci/archive/20240907/202409070218.RB5WsQ07-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240907/202409070218.RB5WsQ07-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/oe-kbuild-all/202409070218.RB5WsQ07-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) kernel/sched/build_policy.c: note: in included file: kernel/sched/rt.c:916:70: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/rt.c:916:70: sparse: struct task_struct [noderef] __rcu * kernel/sched/rt.c:916:70: sparse: struct task_struct * kernel/sched/rt.c:2364:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/rt.c:2364:25: sparse: struct task_struct * kernel/sched/rt.c:2364:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/rt.c:1002:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:1002:38: sparse: expected struct task_struct *curr kernel/sched/rt.c:1002:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:1536:31: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:1536:31: sparse: expected struct task_struct *p kernel/sched/rt.c:1536:31: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:1876:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/rt.c:1876:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/rt.c:1876:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/rt.c:1556:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/rt.c:1556:14: sparse: expected struct task_struct *curr kernel/sched/rt.c:1556:14: sparse: got struct task_struct [noderef] __rcu * kernel/sched/rt.c:1621:45: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:1621:45: sparse: expected struct task_struct *p kernel/sched/rt.c:1621:45: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:1682:67: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:1682:67: sparse: expected struct task_struct *tsk kernel/sched/rt.c:1682:67: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2044:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *task @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2044:40: sparse: expected struct task_struct *task kernel/sched/rt.c:2044:40: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2067:13: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/rt.c:2067:13: sparse: struct task_struct * kernel/sched/rt.c:2067:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/rt.c:2417:54: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2417:54: sparse: expected struct task_struct *tsk kernel/sched/rt.c:2417:54: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2419:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2419:40: sparse: expected struct task_struct *p kernel/sched/rt.c:2419:40: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2419:61: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2419:61: sparse: expected struct task_struct *p kernel/sched/rt.c:2419:61: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/build_policy.c: note: in included file: kernel/sched/deadline.c:2401:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2401:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:2401:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2411:13: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2411:13: sparse: struct task_struct * kernel/sched/deadline.c:2411:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2519:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2519:25: sparse: struct task_struct * kernel/sched/deadline.c:2519:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2026:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@ kernel/sched/deadline.c:2026:42: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2026:42: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2037:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2037:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2037:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1220:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1220:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:1220:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1444:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1444:38: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1444:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2262:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/deadline.c:2262:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/deadline.c:2262:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/deadline.c:1911:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/deadline.c:1911:14: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1911:14: sparse: got struct task_struct [noderef] __rcu * kernel/sched/deadline.c:1987:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1987:43: sparse: expected struct task_struct *p kernel/sched/deadline.c:1987:43: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2566:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2566:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2566:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2568:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2568:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:2568:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2570:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@ kernel/sched/deadline.c:2570:44: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2570:44: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2745:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2745:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2745:22: sparse: struct task_struct * kernel/sched/deadline.c:2794:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/build_policy.c: note: in included file: kernel/sched/ext.c:531:25: sparse: sparse: symbol 'scx_has_op' was not declared. Should it be static? >> kernel/sched/ext.c:631:22: sparse: sparse: symbol 'scx_dump_data' was not declared. Should it be static? kernel/sched/ext.c:982:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext.c:1399:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext.c:1409:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *from @@ got struct task_struct [noderef] __rcu *curr @@ >> kernel/sched/ext.c:3444:52: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext.c:4824:33: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext.c:4824:33: sparse: struct task_struct [noderef] __rcu * kernel/sched/ext.c:4824:33: sparse: struct task_struct const * kernel/sched/build_policy.c: note: in included file: kernel/sched/syscalls.c:206:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/syscalls.c:206:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/syscalls.c:206:22: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file: kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2389:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2389:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2389:9: sparse: struct task_struct * kernel/sched/sched.h:2214:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2214:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2214:25: sparse: struct task_struct * kernel/sched/sched.h:2389:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2389:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2389:9: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file: kernel/sched/syscalls.c:1426:6: sparse: sparse: context imbalance in 'sched_getaffinity' - wrong count at exit kernel/sched/build_policy.c: note: in included file: kernel/sched/rt.c:1707:15: sparse: sparse: dereference of noderef expression vim +/scx_dump_data +631 kernel/sched/ext.c 530 > 531 struct static_key_false scx_has_op[SCX_OPI_END] = 532 { [0 ... SCX_OPI_END-1] = STATIC_KEY_FALSE_INIT }; 533 534 static atomic_t scx_exit_kind = ATOMIC_INIT(SCX_EXIT_DONE); 535 static struct scx_exit_info *scx_exit_info; 536 537 static atomic_long_t scx_nr_rejected = ATOMIC_LONG_INIT(0); 538 539 /* 540 * The maximum amount of time in jiffies that a task may be runnable without 541 * being scheduled on a CPU. If this timeout is exceeded, it will trigger 542 * scx_ops_error(). 543 */ 544 static unsigned long scx_watchdog_timeout; 545 546 /* 547 * The last time the delayed work was run. This delayed work relies on 548 * ksoftirqd being able to run to service timer interrupts, so it's possible 549 * that this work itself could get wedged. To account for this, we check that 550 * it's not stalled in the timer tick, and trigger an error if it is. 551 */ 552 static unsigned long scx_watchdog_timestamp = INITIAL_JIFFIES; 553 554 static struct delayed_work scx_watchdog_work; 555 556 /* idle tracking */ 557 #ifdef CONFIG_SMP 558 #ifdef CONFIG_CPUMASK_OFFSTACK 559 #define CL_ALIGNED_IF_ONSTACK 560 #else 561 #define CL_ALIGNED_IF_ONSTACK __cacheline_aligned_in_smp 562 #endif 563 564 static struct { 565 cpumask_var_t cpu; 566 cpumask_var_t smt; 567 } idle_masks CL_ALIGNED_IF_ONSTACK; 568 569 #endif /* CONFIG_SMP */ 570 571 /* 572 * Direct dispatch marker. 573 * 574 * Non-NULL values are used for direct dispatch from enqueue path. A valid 575 * pointer points to the task currently being enqueued. An ERR_PTR value is used 576 * to indicate that direct dispatch has already happened. 577 */ 578 static DEFINE_PER_CPU(struct task_struct *, direct_dispatch_task); 579 580 /* dispatch queues */ 581 static struct scx_dispatch_q __cacheline_aligned_in_smp scx_dsq_global; 582 583 static const struct rhashtable_params dsq_hash_params = { 584 .key_len = 8, 585 .key_offset = offsetof(struct scx_dispatch_q, id), 586 .head_offset = offsetof(struct scx_dispatch_q, hash_node), 587 }; 588 589 static struct rhashtable dsq_hash; 590 static LLIST_HEAD(dsqs_to_free); 591 592 /* dispatch buf */ 593 struct scx_dsp_buf_ent { 594 struct task_struct *task; 595 unsigned long qseq; 596 u64 dsq_id; 597 u64 enq_flags; 598 }; 599 600 static u32 scx_dsp_max_batch; 601 602 struct scx_dsp_ctx { 603 struct rq *rq; 604 struct rq_flags *rf; 605 u32 cursor; 606 u32 nr_tasks; 607 struct scx_dsp_buf_ent buf[]; 608 }; 609 610 static struct scx_dsp_ctx __percpu *scx_dsp_ctx; 611 612 /* string formatting from BPF */ 613 struct scx_bstr_buf { 614 u64 data[MAX_BPRINTF_VARARGS]; 615 char line[SCX_EXIT_MSG_LEN]; 616 }; 617 618 static DEFINE_RAW_SPINLOCK(scx_exit_bstr_buf_lock); 619 static struct scx_bstr_buf scx_exit_bstr_buf; 620 621 /* ops debug dump */ 622 struct scx_dump_data { 623 s32 cpu; 624 bool first; 625 s32 cursor; 626 struct seq_buf *s; 627 const char *prefix; 628 struct scx_bstr_buf buf; 629 }; 630 > 631 struct scx_dump_data scx_dump_data = { 632 .cpu = -1, 633 }; 634 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
