* lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @ 2023-11-08 1:04 kernel test robot 2023-11-10 15:42 ` Sebastian Andrzej Siewior 0 siblings, 1 reply; 4+ messages in thread From: kernel test robot @ 2023-11-08 1:04 UTC (permalink / raw) To: Sebastian Andrzej Siewior; +Cc: oe-kbuild-all, linux-kernel, Thomas Gleixner tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 13d88ac54ddd1011b6e94443958e798aa06eb835 commit: 9458e0a78c45bc6537ce11eb9f03489eab92f9c2 flex_proportions: Disable preemption entering the write section. date: 1 year, 2 months ago config: loongarch-randconfig-r123-20231107 (https://download.01.org/0day-ci/archive/20231108/202311080840.Vc2kXhfp-lkp@intel.com/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231108/202311080840.Vc2kXhfp-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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202311080840.Vc2kXhfp-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ lib/flex_proportions.c:73:9: sparse: expected void *ptr lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * lib/flex_proportions.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/percpu_counter.h, ...): include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got unsigned int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got unsigned int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got unsigned int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got unsigned int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got int [noderef] __percpu * include/linux/seqlock.h:269:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ include/linux/seqlock.h:269:9: sparse: expected void *ptr include/linux/seqlock.h:269:9: sparse: got int [noderef] __percpu * vim +73 lib/flex_proportions.c 55 56 /* 57 * Declare @periods new periods. It is upto the caller to make sure period 58 * transitions cannot happen in parallel. 59 * 60 * The function returns true if the proportions are still defined and false 61 * if aging zeroed out all events. This can be used to detect whether declaring 62 * further periods has any effect. 63 */ 64 bool fprop_new_period(struct fprop_global *p, int periods) 65 { 66 s64 events = percpu_counter_sum(&p->events); 67 68 /* 69 * Don't do anything if there are no events. 70 */ 71 if (events <= 1) 72 return false; > 73 preempt_disable_nested(); 74 write_seqcount_begin(&p->sequence); 75 if (periods < 64) 76 events -= events >> periods; 77 /* Use addition to avoid losing events happening between sum and set */ 78 percpu_counter_add(&p->events, -events); 79 p->period += periods; 80 write_seqcount_end(&p->sequence); 81 preempt_enable_nested(); 82 83 return true; 84 } 85 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) 2023-11-08 1:04 lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) kernel test robot @ 2023-11-10 15:42 ` Sebastian Andrzej Siewior 2023-11-11 1:54 ` Philip Li 0 siblings, 1 reply; 4+ messages in thread From: Sebastian Andrzej Siewior @ 2023-11-10 15:42 UTC (permalink / raw) To: kernel test robot; +Cc: oe-kbuild-all, linux-kernel, Thomas Gleixner On 2023-11-08 09:04:40 [+0800], kernel test robot wrote: … Could you please explain what is wrong here? The code in line 73 has no percpu reference at all. Or expects an argument. > sparse warnings: (new ones prefixed by >>) > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > lib/flex_proportions.c:73:9: sparse: expected void *ptr > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > lib/flex_proportions.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/percpu_counter.h, ...): > > vim +73 lib/flex_proportions.c > > 55 > 56 /* > 57 * Declare @periods new periods. It is upto the caller to make sure period > 58 * transitions cannot happen in parallel. > 59 * > 60 * The function returns true if the proportions are still defined and false > 61 * if aging zeroed out all events. This can be used to detect whether declaring > 62 * further periods has any effect. > 63 */ > 64 bool fprop_new_period(struct fprop_global *p, int periods) > 65 { > 66 s64 events = percpu_counter_sum(&p->events); > 67 > 68 /* > 69 * Don't do anything if there are no events. > 70 */ > 71 if (events <= 1) > 72 return false; > > 73 preempt_disable_nested(); > 74 write_seqcount_begin(&p->sequence); > 75 if (periods < 64) > 76 events -= events >> periods; > 77 /* Use addition to avoid losing events happening between sum and set */ > 78 percpu_counter_add(&p->events, -events); > 79 p->period += periods; > 80 write_seqcount_end(&p->sequence); > 81 preempt_enable_nested(); > 82 > 83 return true; > 84 } > 85 > Sebastian ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) 2023-11-10 15:42 ` Sebastian Andrzej Siewior @ 2023-11-11 1:54 ` Philip Li 2023-11-11 9:42 ` Philip Li 0 siblings, 1 reply; 4+ messages in thread From: Philip Li @ 2023-11-11 1:54 UTC (permalink / raw) To: Sebastian Andrzej Siewior Cc: kernel test robot, oe-kbuild-all, linux-kernel, Thomas Gleixner On Fri, Nov 10, 2023 at 04:42:08PM +0100, Sebastian Andrzej Siewior wrote: > On 2023-11-08 09:04:40 [+0800], kernel test robot wrote: > … > Could you please explain what is wrong here? The code in line 73 has no > percpu reference at all. Or expects an argument. Apologize for the confusing report, we will investigate this in earliest time to understand what goes wrong. Kindly ignore this and sorry for the noise. > > > sparse warnings: (new ones prefixed by >>) > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > lib/flex_proportions.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/percpu_counter.h, ...): > > > > vim +73 lib/flex_proportions.c > > > > 55 > > 56 /* > > 57 * Declare @periods new periods. It is upto the caller to make sure period > > 58 * transitions cannot happen in parallel. > > 59 * > > 60 * The function returns true if the proportions are still defined and false > > 61 * if aging zeroed out all events. This can be used to detect whether declaring > > 62 * further periods has any effect. > > 63 */ > > 64 bool fprop_new_period(struct fprop_global *p, int periods) > > 65 { > > 66 s64 events = percpu_counter_sum(&p->events); > > 67 > > 68 /* > > 69 * Don't do anything if there are no events. > > 70 */ > > 71 if (events <= 1) > > 72 return false; > > > 73 preempt_disable_nested(); > > 74 write_seqcount_begin(&p->sequence); > > 75 if (periods < 64) > > 76 events -= events >> periods; > > 77 /* Use addition to avoid losing events happening between sum and set */ > > 78 percpu_counter_add(&p->events, -events); > > 79 p->period += periods; > > 80 write_seqcount_end(&p->sequence); > > 81 preempt_enable_nested(); > > 82 > > 83 return true; > > 84 } > > 85 > > > Sebastian > ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) 2023-11-11 1:54 ` Philip Li @ 2023-11-11 9:42 ` Philip Li 0 siblings, 0 replies; 4+ messages in thread From: Philip Li @ 2023-11-11 9:42 UTC (permalink / raw) To: Sebastian Andrzej Siewior, Huacai Chen, Bibo Mao Cc: kernel test robot, oe-kbuild-all, linux-kernel, Thomas Gleixner +Huacai and Bibo for support. On Sat, Nov 11, 2023 at 09:54:33AM +0800, Philip Li wrote: > On Fri, Nov 10, 2023 at 04:42:08PM +0100, Sebastian Andrzej Siewior wrote: > > On 2023-11-08 09:04:40 [+0800], kernel test robot wrote: > > … > > Could you please explain what is wrong here? The code in line 73 has no > > percpu reference at all. Or expects an argument. > > Apologize for the confusing report, we will investigate this in earliest > time to understand what goes wrong. Kindly ignore this and sorry for the noise. Hi Sebastian, I do a further check and realize this is same as [1], that Steven mentioned > > 2430 lockdep_assert_preemption_disabled(); The above is a generic lockdep utility. Sounds to me that this is a bug in the loongarch code that doesn't handle this properly. So the commit reported is not the actual cause of the issue, which just calls the preempt_disable_nested and exposes the issue of loongarch. As for the question "line 73 has nopercpu reference", probably the preempt_disable_nested is expanded to call lockdep_assert_preemption_disabled, which in turn further calls into this_cpu_read (because CONFIG_PREEMPT_RT is not set and CONFIG_PROVE_LOCKING=y for this randconfig). For now, I will update bot logic to avoid sending similar reports and look for fix from loongarch side. Hi Huacai and Bibo, sorry to bother, could you help do a check of [1] and [2], or point me to the right contact for this sparse warning? [1] https://lore.kernel.org/oe-kbuild-all/20231108094847.236d04b2@gandalf.local.home/ [2] https://lore.kernel.org/oe-kbuild-all/202311080409.LlOfTR3m-lkp@intel.com/ Thanks > > > > > > sparse warnings: (new ones prefixed by >>) > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got unsigned int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > > >> lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ > > > lib/flex_proportions.c:73:9: sparse: expected void *ptr > > > lib/flex_proportions.c:73:9: sparse: got int [noderef] __percpu * > > > lib/flex_proportions.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/percpu_counter.h, ...): > > > > > > vim +73 lib/flex_proportions.c > > > > > > 55 > > > 56 /* > > > 57 * Declare @periods new periods. It is upto the caller to make sure period > > > 58 * transitions cannot happen in parallel. > > > 59 * > > > 60 * The function returns true if the proportions are still defined and false > > > 61 * if aging zeroed out all events. This can be used to detect whether declaring > > > 62 * further periods has any effect. > > > 63 */ > > > 64 bool fprop_new_period(struct fprop_global *p, int periods) > > > 65 { > > > 66 s64 events = percpu_counter_sum(&p->events); > > > 67 > > > 68 /* > > > 69 * Don't do anything if there are no events. > > > 70 */ > > > 71 if (events <= 1) > > > 72 return false; > > > > 73 preempt_disable_nested(); > > > 74 write_seqcount_begin(&p->sequence); > > > 75 if (periods < 64) > > > 76 events -= events >> periods; > > > 77 /* Use addition to avoid losing events happening between sum and set */ > > > 78 percpu_counter_add(&p->events, -events); > > > 79 p->period += periods; > > > 80 write_seqcount_end(&p->sequence); > > > 81 preempt_enable_nested(); > > > 82 > > > 83 return true; > > > 84 } > > > 85 > > > > > Sebastian > > ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-11-11 9:42 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-11-08 1:04 lib/flex_proportions.c:73:9: sparse: sparse: incorrect type in argument 1 (different address spaces) kernel test robot 2023-11-10 15:42 ` Sebastian Andrzej Siewior 2023-11-11 1:54 ` Philip Li 2023-11-11 9:42 ` Philip Li
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