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Message-ID: <202312101912.zKLp44oc-lkp@intel.com>
Date: Sun, 10 Dec 2023 19:05:10 +0800
From: kernel test robot <lkp@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
x86@...nel.org
Subject: [tip:sched/core 10/15] kernel/sched/fair.c:8231:(.text+0x2b62):
relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
head: 418146e39891ef1fb2284dee4cabbfe616cd21cf
commit: c708a4dc5ab547edc3d6537233ca9e79ea30ce47 [10/15] sched: Unify more update_curr*()
config: csky-randconfig-s042-20220830 (https://download.01.org/0day-ci/archive/20231210/202312101912.zKLp44oc-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312101912.zKLp44oc-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/202312101912.zKLp44oc-lkp@intel.com/
All errors (new ones prefixed by >>):
kernel/sched/fair.o: in function `attach_entity_load_avg':
>> include/trace/events/sched.h:743:(.text+0x2aec): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
include/trace/events/sched.h:743:(.text+0x2b0c): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.o: in function `check_preempt_wakeup_fair':
>> kernel/sched/fair.c:8231:(.text+0x2b62): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:8287:(.text+0x2b88): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:8261:(.text+0x2be8): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:8276:(.text+0x2c2e): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:8281:(.text+0x2c34): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.o: in function `select_idle_sibling':
kernel/sched/fair.c:4730:(.text+0x2c94): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:7470:(.text+0x2d3a): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:7472:(.text+0x2d40): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table'
kernel/sched/fair.c:6652:(.text+0x2d48): additional relocation overflows omitted from the output
vim +8231 kernel/sched/fair.c
02479099c28689 kernel/sched_fair.c Peter Zijlstra 2008-11-04 8206
bf0f6f24a1ece8 kernel/sched_fair.c Ingo Molnar 2007-07-09 8207 /*
bf0f6f24a1ece8 kernel/sched_fair.c Ingo Molnar 2007-07-09 8208 * Preempt the current task with a newly woken task if needed:
bf0f6f24a1ece8 kernel/sched_fair.c Ingo Molnar 2007-07-09 8209 */
82845683ca6a15 kernel/sched/fair.c Ingo Molnar 2023-09-19 8210 static void check_preempt_wakeup_fair(struct rq *rq, struct task_struct *p, int wake_flags)
bf0f6f24a1ece8 kernel/sched_fair.c Ingo Molnar 2007-07-09 8211 {
bf0f6f24a1ece8 kernel/sched_fair.c Ingo Molnar 2007-07-09 8212 struct task_struct *curr = rq->curr;
8651a86c342ab7 kernel/sched_fair.c Srivatsa Vaddagiri 2007-10-15 8213 struct sched_entity *se = &curr->se, *pse = &p->se;
4793241be408b3 kernel/sched_fair.c Peter Zijlstra 2008-11-04 8214 struct cfs_rq *cfs_rq = task_cfs_rq(curr);
2f36825b176f67 kernel/sched_fair.c Venkatesh Pallipadi 2011-04-14 8215 int next_buddy_marked = 0;
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8216 int cse_is_idle, pse_is_idle;
4793241be408b3 kernel/sched_fair.c Peter Zijlstra 2008-11-04 8217
4ae7d5cefd4aa3 kernel/sched_fair.c Ingo Molnar 2008-03-19 8218 if (unlikely(se == pse))
4ae7d5cefd4aa3 kernel/sched_fair.c Ingo Molnar 2008-03-19 8219 return;
4ae7d5cefd4aa3 kernel/sched_fair.c Ingo Molnar 2008-03-19 8220
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8221 /*
163122b7fcfa28 kernel/sched/fair.c Kirill Tkhai 2014-08-20 8222 * This is possible from callers such as attach_tasks(), in which we
e23edc86b09df6 kernel/sched/fair.c Ingo Molnar 2023-09-19 8223 * unconditionally wakeup_preempt() after an enqueue (which may have
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8224 * lead to a throttle). This both saves work and prevents false
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8225 * next-buddy nomination below.
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8226 */
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8227 if (unlikely(throttled_hierarchy(cfs_rq_of(pse))))
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8228 return;
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8229
5e963f2bd4654a kernel/sched/fair.c Peter Zijlstra 2023-05-31 8230 if (sched_feat(NEXT_BUDDY) && !(wake_flags & WF_FORK)) {
02479099c28689 kernel/sched_fair.c Peter Zijlstra 2008-11-04 @8231 set_next_buddy(pse);
2f36825b176f67 kernel/sched_fair.c Venkatesh Pallipadi 2011-04-14 8232 next_buddy_marked = 1;
2f36825b176f67 kernel/sched_fair.c Venkatesh Pallipadi 2011-04-14 8233 }
57fdc26d4a734a kernel/sched_fair.c Peter Zijlstra 2008-09-23 8234
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8235 /*
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8236 * We can come here with TIF_NEED_RESCHED already set from new task
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8237 * wake up path.
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8238 *
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8239 * Note: this also catches the edge-case of curr being in a throttled
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8240 * group (e.g. via set_curr_task), since update_curr() (in the
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8241 * enqueue of curr) will have resulted in resched being set. This
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8242 * prevents us from potentially nominating it as a false LAST_BUDDY
5238cdd3873e67 kernel/sched_fair.c Paul Turner 2011-07-21 8243 * below.
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8244 */
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8245 if (test_tsk_need_resched(curr))
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8246 return;
aec0a5142cb52a kernel/sched_fair.c Bharata B Rao 2008-08-28 8247
a2f5c9ab79f78e kernel/sched_fair.c Darren Hart 2011-02-22 8248 /* Idle tasks are by definition preempted by non-idle tasks. */
1da1843f9f0334 kernel/sched/fair.c Viresh Kumar 2018-11-05 8249 if (unlikely(task_has_idle_policy(curr)) &&
1da1843f9f0334 kernel/sched/fair.c Viresh Kumar 2018-11-05 8250 likely(!task_has_idle_policy(p)))
a2f5c9ab79f78e kernel/sched_fair.c Darren Hart 2011-02-22 8251 goto preempt;
a2f5c9ab79f78e kernel/sched_fair.c Darren Hart 2011-02-22 8252
91c234b4e3419c kernel/sched_fair.c Ingo Molnar 2007-10-15 8253 /*
a2f5c9ab79f78e kernel/sched_fair.c Darren Hart 2011-02-22 8254 * Batch and idle tasks do not preempt non-idle tasks (their preemption
a2f5c9ab79f78e kernel/sched_fair.c Darren Hart 2011-02-22 8255 * is driven by the tick):
91c234b4e3419c kernel/sched_fair.c Ingo Molnar 2007-10-15 8256 */
8ed92e51f99c21 kernel/sched/fair.c Ingo Molnar 2012-10-14 8257 if (unlikely(p->policy != SCHED_NORMAL) || !sched_feat(WAKEUP_PREEMPTION))
91c234b4e3419c kernel/sched_fair.c Ingo Molnar 2007-10-15 8258 return;
8651a86c342ab7 kernel/sched_fair.c Srivatsa Vaddagiri 2007-10-15 8259
464b75273f64be kernel/sched_fair.c Peter Zijlstra 2008-10-24 8260 find_matching_se(&se, &pse);
09348d75a6ce60 kernel/sched/fair.c Ingo Molnar 2022-08-11 8261 WARN_ON_ONCE(!pse);
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8262
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8263 cse_is_idle = se_is_idle(se);
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8264 pse_is_idle = se_is_idle(pse);
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8265
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8266 /*
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8267 * Preempt an idle group in favor of a non-idle group (and don't preempt
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8268 * in the inverse case).
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8269 */
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8270 if (cse_is_idle && !pse_is_idle)
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8271 goto preempt;
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8272 if (cse_is_idle != pse_is_idle)
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8273 return;
304000390f88d0 kernel/sched/fair.c Josh Don 2021-07-29 8274
147f3efaa24182 kernel/sched/fair.c Peter Zijlstra 2023-05-31 8275 cfs_rq = cfs_rq_of(se);
147f3efaa24182 kernel/sched/fair.c Peter Zijlstra 2023-05-31 8276 update_curr(cfs_rq);
147f3efaa24182 kernel/sched/fair.c Peter Zijlstra 2023-05-31 8277
2f36825b176f67 kernel/sched_fair.c Venkatesh Pallipadi 2011-04-14 8278 /*
147f3efaa24182 kernel/sched/fair.c Peter Zijlstra 2023-05-31 8279 * XXX pick_eevdf(cfs_rq) != se ?
2f36825b176f67 kernel/sched_fair.c Venkatesh Pallipadi 2011-04-14 8280 */
147f3efaa24182 kernel/sched/fair.c Peter Zijlstra 2023-05-31 8281 if (pick_eevdf(cfs_rq) == pse)
3a7e73a2e26fff kernel/sched_fair.c Peter Zijlstra 2009-11-28 8282 goto preempt;
464b75273f64be kernel/sched_fair.c Peter Zijlstra 2008-10-24 8283
3a7e73a2e26fff kernel/sched_fair.c Peter Zijlstra 2009-11-28 8284 return;
a65ac745e47e91 kernel/sched_fair.c Jupyung Lee 2009-11-17 8285
3a7e73a2e26fff kernel/sched_fair.c Peter Zijlstra 2009-11-28 8286 preempt:
8875125efe8402 kernel/sched/fair.c Kirill Tkhai 2014-06-29 8287 resched_curr(rq);
f685ceacab07d3 kernel/sched_fair.c Mike Galbraith 2009-10-23 8288 }
bf0f6f24a1ece8 kernel/sched_fair.c Ingo Molnar 2007-07-09 8289
:::::: The code at line 8231 was first introduced by commit
:::::: 02479099c286894644f8e96c6bbb535ab64662fd sched: fix buddies for group scheduling
:::::: TO: Peter Zijlstra <a.p.zijlstra@...llo.nl>
:::::: CC: Ingo Molnar <mingo@...e.hu>
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