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Message-ID: <202412211700.9lWP3KmT-lkp@intel.com>
Date: Sat, 21 Dec 2024 18:01:05 +0800
From: kernel test robot <lkp@...el.com>
To: FUJITA Tomonori <fujita.tomonori@...il.com>,
linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Boqun Feng <boqun.feng@...il.com>,
rust-for-linux@...r.kernel.org, netdev@...r.kernel.org,
andrew@...n.ch, hkallweit1@...il.com, tmgross@...ch.edu,
ojeda@...nel.org, alex.gaynor@...il.com, gary@...yguo.net,
bjorn3_gh@...tonmail.com, benno.lossin@...ton.me,
a.hindborg@...sung.com, aliceryhl@...gle.com,
anna-maria@...utronix.de, frederic@...nel.org, tglx@...utronix.de,
arnd@...db.de, jstultz@...gle.com, sboyd@...nel.org,
mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com,
vincent.guittot@...aro.org, dietmar.eggemann@....com,
rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
vschneid@...hat.com
Subject: Re: [PATCH v7 6/7] rust: Add read_poll_timeout functions
Hi FUJITA,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 0c5928deada15a8d075516e6e0d9ee19011bb000]
url: https://github.com/intel-lab-lkp/linux/commits/FUJITA-Tomonori/rust-time-Add-PartialEq-Eq-PartialOrd-Ord-trait-to-Ktime/20241220-142722
base: 0c5928deada15a8d075516e6e0d9ee19011bb000
patch link: https://lore.kernel.org/r/20241220061853.2782878-7-fujita.tomonori%40gmail.com
patch subject: [PATCH v7 6/7] rust: Add read_poll_timeout functions
config: microblaze-randconfig-r131-20241221 (https://download.01.org/0day-ci/archive/20241221/202412211700.9lWP3KmT-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20241221/202412211700.9lWP3KmT-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412211700.9lWP3KmT-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/core.c:1080:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:1080:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:1080:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2179:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:2179:39: sparse: expected struct task_struct *donor
kernel/sched/core.c:2179:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:2190:65: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:2190:65: sparse: expected struct task_struct *tsk
kernel/sched/core.c:2190:65: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5641:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:5641:15: sparse: expected struct task_struct *donor
kernel/sched/core.c:5641:15: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:6653:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:6653:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:6653:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:7199:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:7199:17: sparse: struct task_struct *
kernel/sched/core.c:7199:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:8901:16: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct task_struct * @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:8901:16: sparse: expected struct task_struct *
kernel/sched/core.c:8901:16: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:10116:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:10116:25: sparse: expected struct task_struct *p
kernel/sched/core.c:10116:25: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:1490:17: sparse: sparse: self-comparison always evaluates to true
kernel/sched/core.c:591:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/sched.h:1490:17: sparse: sparse: self-comparison always evaluates to true
kernel/sched/core.c:624:23: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/core.c:640:6: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock
kernel/sched/core.c:677:21: sparse: sparse: self-comparison always evaluates to true
kernel/sched/core.c:678:36: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
kernel/sched/core.c:718:21: sparse: sparse: self-comparison always evaluates to true
kernel/sched/core.c:719:36: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit
kernel/sched/sched.h:2258:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2258:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2258:25: sparse: struct task_struct *
kernel/sched/sched.h:2258:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2258:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2258:25: sparse: struct task_struct *
kernel/sched/sched.h:2258:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2258:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2258:25: sparse: struct task_struct *
kernel/sched/sched.h:2269:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2269:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2269:26: sparse: struct task_struct *
kernel/sched/sched.h:2481:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2481:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2481:9: sparse: struct task_struct *
kernel/sched/sched.h:2481:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2481:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2481:9: sparse: struct task_struct *
kernel/sched/sched.h:2269:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2269:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2269:26: sparse: struct task_struct *
kernel/sched/sched.h:2458:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2458:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2458:9: sparse: struct task_struct *
>> kernel/sched/core.c:8722:31: sparse: sparse: marked inline, but without a definition
vim +8722 kernel/sched/core.c
8721
> 8722 void __might_resched_precision(const char *file, int len, int line, unsigned int offsets)
8723 {
8724 /* Ratelimiting timestamp: */
8725 static unsigned long prev_jiffy;
8726
8727 unsigned long preempt_disable_ip;
8728
8729 /* WARN_ON_ONCE() by default, no rate limit required: */
8730 rcu_sleep_check();
8731
8732 if ((resched_offsets_ok(offsets) && !irqs_disabled() &&
8733 !is_idle_task(current) && !current->non_block_count) ||
8734 system_state == SYSTEM_BOOTING || system_state > SYSTEM_RUNNING ||
8735 oops_in_progress)
8736 return;
8737
8738 if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy)
8739 return;
8740 prev_jiffy = jiffies;
8741
8742 /* Save this before calling printk(), since that will clobber it: */
8743 preempt_disable_ip = get_preempt_disable_ip(current);
8744
8745 pr_err("BUG: sleeping function called from invalid context at %.*s:%d\n",
8746 len, file, line);
8747 pr_err("in_atomic(): %d, irqs_disabled(): %d, non_block: %d, pid: %d, name: %s\n",
8748 in_atomic(), irqs_disabled(), current->non_block_count,
8749 current->pid, current->comm);
8750 pr_err("preempt_count: %x, expected: %x\n", preempt_count(),
8751 offsets & MIGHT_RESCHED_PREEMPT_MASK);
8752
8753 if (IS_ENABLED(CONFIG_PREEMPT_RCU)) {
8754 pr_err("RCU nest depth: %d, expected: %u\n",
8755 rcu_preempt_depth(), offsets >> MIGHT_RESCHED_RCU_SHIFT);
8756 }
8757
8758 if (task_stack_end_corrupted(current))
8759 pr_emerg("Thread overran stack, or stack corrupted\n");
8760
8761 debug_show_held_locks(current);
8762 if (irqs_disabled())
8763 print_irqtrace_events(current);
8764
8765 print_preempt_disable_ip(offsets & MIGHT_RESCHED_PREEMPT_MASK,
8766 preempt_disable_ip);
8767
8768 dump_stack();
8769 add_taint(TAINT_WARN, LOCKDEP_STILL_OK);
8770 }
8771
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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