[koverstreet-bcachefs:trace_sched_wakeup_backtrace 249/332] fs/bcachefs/data/reconcile/work.c:1205:12: warning: stack frame size (1080) exceeds limit (1024) in 'bch2_reconcile_thread'

[koverstreet-bcachefs:trace_sched_wakeup_backtrace 249/332] fs/bcachefs/data/reconcile/work.c:1205:12: warning: stack frame size (1080) exceeds limit (1024) in 'bch2_reconcile_thread'

[kernel test robot]

tree:   https://github.com/koverstreet/bcachefs trace_sched_wakeup_backtrace
head:   9e7cbd4ad9c7a7ba461dbba9185628c006e200cd
commit: 2df58c8935f572f91c66956583e5b764203df420 [249/332] bcachefs: Fix use-after-unlock in reconcile tracepoints
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20260411/202604110002.CsxNT0D9-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260411/202604110002.CsxNT0D9-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/202604110002.CsxNT0D9-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/bcachefs/data/reconcile/work.c:1205:12: warning: stack frame size (1080) exceeds limit (1024) in 'bch2_reconcile_thread' [-Wframe-larger-than]
    1205 | static int bch2_reconcile_thread(void *arg)
         |            ^
   fs/bcachefs/data/reconcile/work.c:980:25: warning: stack frame size (1216) exceeds limit (1024) in 'do_reconcile_phys_thread' [-Wframe-larger-than]
     980 | static CLOSURE_CALLBACK(do_reconcile_phys_thread)
         |                         ^
   2 warnings generated.


vim +/bch2_reconcile_thread +1205 fs/bcachefs/data/reconcile/work.c

de374d7b729620 Kent Overstreet 2026-01-19  1204  
de374d7b729620 Kent Overstreet 2026-01-19 @1205  static int bch2_reconcile_thread(void *arg)
de374d7b729620 Kent Overstreet 2026-01-19  1206  {
de374d7b729620 Kent Overstreet 2026-01-19  1207  	struct bch_fs *c = arg;
de374d7b729620 Kent Overstreet 2026-01-19  1208  	struct bch_fs_reconcile *r = &c->reconcile;
de374d7b729620 Kent Overstreet 2026-01-19  1209  
de374d7b729620 Kent Overstreet 2026-01-19  1210  	set_freezable();
de374d7b729620 Kent Overstreet 2026-01-19  1211  
de374d7b729620 Kent Overstreet 2026-01-19  1212  	/*
de374d7b729620 Kent Overstreet 2026-01-19  1213  	 * Data move operations can't run until after check_snapshots has
de374d7b729620 Kent Overstreet 2026-01-19  1214  	 * completed, and bch2_snapshot_is_ancestor() is available.
de374d7b729620 Kent Overstreet 2026-01-19  1215  	 */
de374d7b729620 Kent Overstreet 2026-01-19  1216  	kthread_wait_freezable(c->recovery.pass_done > BCH_RECOVERY_PASS_check_snapshots ||
de374d7b729620 Kent Overstreet 2026-01-19  1217  			       kthread_should_stop());
de374d7b729620 Kent Overstreet 2026-01-19  1218  	if (kthread_should_stop())
de374d7b729620 Kent Overstreet 2026-01-19  1219  		return 0;
de374d7b729620 Kent Overstreet 2026-01-19  1220  
de374d7b729620 Kent Overstreet 2026-01-19  1221  	struct moving_context ctxt __cleanup(bch2_moving_ctxt_exit);
de374d7b729620 Kent Overstreet 2026-01-19  1222  	bch2_moving_ctxt_init(&ctxt, c, NULL, &r->work_stats,
de374d7b729620 Kent Overstreet 2026-01-19  1223  			      writepoint_ptr(&c->allocator.reconcile_write_point),
de374d7b729620 Kent Overstreet 2026-01-19  1224  			      true);
de374d7b729620 Kent Overstreet 2026-01-19  1225  
de374d7b729620 Kent Overstreet 2026-01-19  1226  	while (!kthread_should_stop() && !do_reconcile(&ctxt))
de374d7b729620 Kent Overstreet 2026-01-19  1227  		;
de374d7b729620 Kent Overstreet 2026-01-19  1228  
de374d7b729620 Kent Overstreet 2026-01-19  1229  	return 0;
de374d7b729620 Kent Overstreet 2026-01-19  1230  }
de374d7b729620 Kent Overstreet 2026-01-19  1231  

:::::: The code at line 1205 was first introduced by commit
:::::: de374d7b7296203619ba70f976867051cebaf41b bcachefs: Break up reconcile.c

:::::: TO: Kent Overstreet <kent.overstreet@linux.dev>
:::::: CC: Kent Overstreet <kent.overstreet@linux.dev>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki