* kernel/sched/rt.c:2223:25: sparse: sparse: cast from unknown type
@ 2022-06-14 13:18 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-06-14 13:18 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 36246 bytes --]
::::::
:::::: Manual check reason: "low confidence static check first_new_problem: kernel/sched/rt.c:2223:25: sparse: sparse: cast from unknown type"
::::::
CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-kernel(a)vger.kernel.org
TO: Michael Ellerman <mpe@ellerman.id.au>
CC: Nathan Chancellor <nathan@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3
commit: e432fe97f3e5de325b40021e505cce53877586c5 powerpc/bug: Cast to unsigned long before passing to inline asm
date: 10 months ago
:::::: branch date: 2 days ago
:::::: commit date: 10 months ago
config: powerpc64-randconfig-s032-20220613 (https://download.01.org/0day-ci/archive/20220614/202206142159.5mpl6opZ-lkp(a)intel.com/config)
compiler: powerpc64le-linux-gcc (GCC) 11.3.0
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: v0.6.4-30-g92122700-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e432fe97f3e5de325b40021e505cce53877586c5
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e432fe97f3e5de325b40021e505cce53877586c5
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kvm/ arch/powerpc/platforms/powernv/ kernel/sched/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
kernel/sched/rt.c:913:70: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:913:70: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:913:70: sparse: struct task_struct *
kernel/sched/rt.c:2223:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2223:25: sparse: struct task_struct *
kernel/sched/rt.c:2223:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:2223:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2223:25: sparse: struct task_struct *
kernel/sched/rt.c:2223:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:2223:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2223:25: sparse: struct task_struct *
kernel/sched/rt.c:2223:25: sparse: struct task_struct [noderef] __rcu *
>> kernel/sched/rt.c:2223:25: sparse: sparse: cast from unknown type
kernel/sched/rt.c:530:54: 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:530:54: sparse: expected struct task_struct *curr
kernel/sched/rt.c:530:54: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:999:38: 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:999:38: sparse: expected struct task_struct *curr
kernel/sched/rt.c:999:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1426:31: 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:1426:31: sparse: expected struct task_struct *p
kernel/sched/rt.c:1426:31: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1753:9: 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:1753:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/rt.c:1753:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/rt.c:1446:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/rt.c:1446:14: sparse: expected struct task_struct *curr
kernel/sched/rt.c:1446:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1511:45: 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:1511:45: sparse: expected struct task_struct *p
kernel/sched/rt.c:1511:45: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1572:67: 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:1572:67: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:1572:67: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1895:40: 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:1895:40: sparse: expected struct task_struct *task
kernel/sched/rt.c:1895:40: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1916:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:1916:13: sparse: struct task_struct *
kernel/sched/rt.c:1916:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1916:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:1916:13: sparse: struct task_struct *
kernel/sched/rt.c:1916:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1916:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:1916:13: sparse: struct task_struct *
kernel/sched/rt.c:1916:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1916:13: sparse: sparse: cast from unknown type
kernel/sched/rt.c:2274:54: 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:2274:54: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:2274:54: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2276:40: 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:2276:40: sparse: expected struct task_struct *p
kernel/sched/rt.c:2276:40: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2276:61: 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:2276:61: sparse: expected struct task_struct *p
kernel/sched/rt.c:2276:61: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c: note: in included file:
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
--
kernel/sched/deadline.c:2150:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2150:13: sparse: struct task_struct *
kernel/sched/deadline.c:2150:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2150:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2150:13: sparse: struct task_struct *
kernel/sched/deadline.c:2150:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2150:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2150:13: sparse: struct task_struct *
kernel/sched/deadline.c:2150:13: sparse: struct task_struct [noderef] __rcu *
>> kernel/sched/deadline.c:2150:13: sparse: sparse: cast from unknown type
kernel/sched/deadline.c:2278:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2278:25: sparse: struct task_struct *
kernel/sched/deadline.c:2278:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2278:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2278:25: sparse: struct task_struct *
kernel/sched/deadline.c:2278:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2278:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2278:25: sparse: struct task_struct *
kernel/sched/deadline.c:2278:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2278:25: sparse: sparse: cast from unknown type
kernel/sched/deadline.c:1798:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:1798:42: sparse: expected struct sched_dl_entity *b
kernel/sched/deadline.c:1798:42: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:1809:38: 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:1809:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:1809:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1114:23: 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:1114:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1114:23: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1243:38: 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:1243:38: sparse: expected struct task_struct *curr
kernel/sched/deadline.c:1243:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2006:9: 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:2006:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/deadline.c:2006:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/deadline.c:1683:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/deadline.c:1683:14: sparse: expected struct task_struct *curr
kernel/sched/deadline.c:1683:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:1759:43: 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:1759:43: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1759:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2323:38: 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:2323:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2323:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2325:23: 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:2325:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2325:23: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2327:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:2327:44: sparse: expected struct sched_dl_entity *b
kernel/sched/deadline.c:2327:44: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:2491:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2491:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2491:22: sparse: struct task_struct *
kernel/sched/deadline.c:1142:24: sparse: sparse: context imbalance in 'dl_task_timer' - wrong count at exit
kernel/sched/deadline.c:1381:24: sparse: sparse: context imbalance in 'inactive_task_timer' - wrong count at exit
kernel/sched/deadline.c: note: in included file:
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
--
kernel/sched/core.c:696:48: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:696:48: sparse: expected struct task_struct *p
kernel/sched/core.c:696:48: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:949:38: 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:949:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:949:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1004:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/core.c:1004:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:1004:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:2074:33: 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:2074:33: sparse: expected struct task_struct *p
kernel/sched/core.c:2074:33: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2074:68: 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:2074:68: sparse: expected struct task_struct *tsk
kernel/sched/core.c:2074:68: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:3286:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/core.c:3286:17: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:3286:17: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:3486:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:3486:36: sparse: expected struct task_struct const *p
kernel/sched/core.c:3486:36: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:8455:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *push_task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:8455:43: sparse: expected struct task_struct *push_task
kernel/sched/core.c:8455:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:4941:38: 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:4941:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:4941:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5829:14: 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:5829:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:5829:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:6422:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6422:17: sparse: struct task_struct *
kernel/sched/core.c:6422:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6422:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6422:17: sparse: struct task_struct *
kernel/sched/core.c:6422:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6422:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6422:17: sparse: struct task_struct *
kernel/sched/core.c:6422:17: sparse: struct task_struct [noderef] __rcu *
>> kernel/sched/core.c:6422:17: sparse: sparse: cast from unknown type
kernel/sched/core.c:6629:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6629:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6629:22: sparse: struct task_struct *
kernel/sched/core.c:9280:16: 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:9280:16: sparse: expected struct task_struct *
kernel/sched/core.c:9280:16: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:10388:25: 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:10388:25: sparse: expected struct task_struct *p
kernel/sched/core.c:10388:25: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:453:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/core.c:486:23: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/core.c:502:6: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock
kernel/sched/core.c:540:36: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
kernel/sched/core.c:581:36: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit
kernel/sched/core.c: note: in included file:
kernel/sched/pelt.h:76:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/pelt.h:76:13: sparse: expected struct task_struct const *p
kernel/sched/pelt.h:76:13: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:696:11: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2065:33: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2066:19: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2067:37: sparse: sparse: dereference of noderef expression
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/core.c:2040:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:2040:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:2040:38: sparse: struct task_struct const *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2011:25: sparse: struct task_struct *
kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2169:9: sparse: struct task_struct *
vim +2223 kernel/sched/rt.c
b6366f048e0caf kernel/sched/rt.c Steven Rostedt 2015-03-18 2186
c6c4927b22a351 kernel/sched_rt.c Rusty Russell 2008-11-25 2187 for_each_cpu(cpu, this_rq->rd->rto_mask) {
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2188 if (this_cpu == cpu)
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2189 continue;
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2190
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2191 src_rq = cpu_rq(cpu);
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2192
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2193 /*
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2194 * Don't bother taking the src_rq->lock if the next highest
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2195 * task is known to be lower-priority than our current task.
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2196 * This may look racy, but if this value is about to go
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2197 * logically higher, the src_rq will push this task away.
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2198 * And if its going logically lower, we do not care
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2199 */
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2200 if (src_rq->rt.highest_prio.next >=
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2201 this_rq->rt.highest_prio.curr)
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2202 continue;
74ab8e4f6412c0 kernel/sched_rt.c Gregory Haskins 2008-12-29 2203
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2204 /*
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2205 * We can potentially drop this_rq's lock in
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2206 * double_lock_balance, and another CPU could
a8728944efe234 kernel/sched_rt.c Gregory Haskins 2008-12-29 2207 * alter this_rq
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2208 */
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2209 push_task = NULL;
a8728944efe234 kernel/sched_rt.c Gregory Haskins 2008-12-29 2210 double_lock_balance(this_rq, src_rq);
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2211
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2212 /*
e23ee74777f389 kernel/sched/rt.c Kirill Tkhai 2013-06-07 2213 * We can pull only a task, which is pushable
e23ee74777f389 kernel/sched/rt.c Kirill Tkhai 2013-06-07 2214 * on its rq, and no others.
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2215 */
e23ee74777f389 kernel/sched/rt.c Kirill Tkhai 2013-06-07 2216 p = pick_highest_pushable_task(src_rq, this_cpu);
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2217
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2218 /*
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2219 * Do we have an RT task that preempts
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2220 * the to-be-scheduled task?
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2221 */
a8728944efe234 kernel/sched_rt.c Gregory Haskins 2008-12-29 2222 if (p && (p->prio < this_rq->rt.highest_prio.curr)) {
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 @2223 WARN_ON(p == src_rq->curr);
da0c1e65b51a28 kernel/sched/rt.c Kirill Tkhai 2014-08-20 2224 WARN_ON(!task_on_rq_queued(p));
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2225
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2226 /*
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2227 * There's a chance that p is higher in priority
97fb7a0a8944bd kernel/sched/rt.c Ingo Molnar 2018-03-03 2228 * than what's currently running on its CPU.
3b03706fa621ce kernel/sched/rt.c Ingo Molnar 2021-03-18 2229 * This is just that p is waking up and hasn't
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2230 * had a chance to schedule. We only pull
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2231 * p if it is lower in priority than the
a8728944efe234 kernel/sched_rt.c Gregory Haskins 2008-12-29 2232 * current task on the run queue
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2233 */
a8728944efe234 kernel/sched_rt.c Gregory Haskins 2008-12-29 2234 if (p->prio < src_rq->curr->prio)
614ee1f61f667b kernel/sched_rt.c Mike Galbraith 2008-01-25 2235 goto skip;
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2236
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2237 if (is_migration_disabled(p)) {
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2238 push_task = get_push_task(src_rq);
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2239 } else {
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2240 deactivate_task(src_rq, p, 0);
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2241 set_task_cpu(p, this_cpu);
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2242 activate_task(this_rq, p, 0);
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2243 resched = true;
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2244 }
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2245 /*
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2246 * We continue with the search, just in
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2247 * case there's an even higher prio task
25985edcedea63 kernel/sched_rt.c Lucas De Marchi 2011-03-30 2248 * in another runqueue. (low likelihood
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2249 * but possible)
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2250 */
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2251 }
614ee1f61f667b kernel/sched_rt.c Mike Galbraith 2008-01-25 2252 skip:
1b12bbc747560e kernel/sched_rt.c Peter Zijlstra 2008-08-11 2253 double_unlock_balance(this_rq, src_rq);
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2254
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2255 if (push_task) {
5cb9eaa3d274f7 kernel/sched/rt.c Peter Zijlstra 2020-11-17 2256 raw_spin_rq_unlock(this_rq);
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2257 stop_one_cpu_nowait(src_rq->cpu, push_cpu_stop,
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2258 push_task, &src_rq->push_work);
5cb9eaa3d274f7 kernel/sched/rt.c Peter Zijlstra 2020-11-17 2259 raw_spin_rq_lock(this_rq);
a7c81556ec4d34 kernel/sched/rt.c Peter Zijlstra 2020-09-28 2260 }
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2261 }
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2262
8046d680624708 kernel/sched/rt.c Peter Zijlstra 2015-06-11 2263 if (resched)
8046d680624708 kernel/sched/rt.c Peter Zijlstra 2015-06-11 2264 resched_curr(this_rq);
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2265 }
f65eda4f789168 kernel/sched_rt.c Steven Rostedt 2008-01-25 2266
:::::: The code at line 2223 was first introduced by commit
:::::: f65eda4f789168ba5ff3fa75546c29efeed19f58 sched: pull RT tasks from overloaded runqueues
:::::: TO: Steven Rostedt <srostedt@redhat.com>
:::::: CC: Ingo Molnar <mingo@elte.hu>
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