[koverstreet-bcachefs:trace_sched_wakeup_backtrace 249/332] fs/bcachefs/data/reconcile/work.c:658:1: warning: the frame size of 1552 bytes is larger than 1536 bytes

[koverstreet-bcachefs:trace_sched_wakeup_backtrace 249/332] fs/bcachefs/data/reconcile/work.c:658:1: warning: the frame size of 1552 bytes is larger than 1536 bytes

[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: xtensa-allyesconfig (https://download.01.org/0day-ci/archive/20260913/202609131723.TsG4zJGP-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260913/202609131723.TsG4zJGP-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/202609131723.TsG4zJGP-lkp@intel.com/

All warnings (new ones prefixed by >>):

   fs/bcachefs/data/reconcile/work.c: In function 'do_reconcile_extent_phys':
>> fs/bcachefs/data/reconcile/work.c:658:1: warning: the frame size of 1552 bytes is larger than 1536 bytes [-Wframe-larger-than=]
     658 | }
         | ^


vim +658 fs/bcachefs/data/reconcile/work.c

de374d7b729620 Kent Overstreet 2026-01-19  613  
de374d7b729620 Kent Overstreet 2026-01-19  614  static int do_reconcile_extent_phys(struct moving_context *ctxt,
de374d7b729620 Kent Overstreet 2026-01-19  615  				    struct per_snapshot_io_opts *snapshot_io_opts,
de374d7b729620 Kent Overstreet 2026-01-19  616  				    struct bbpos work,
de374d7b729620 Kent Overstreet 2026-01-19  617  				    struct wb_maybe_flush *last_flushed)
de374d7b729620 Kent Overstreet 2026-01-19  618  {
de374d7b729620 Kent Overstreet 2026-01-19  619  	struct btree_trans *trans = ctxt->trans;
de374d7b729620 Kent Overstreet 2026-01-19  620  	struct bch_fs *c = trans->c;
de374d7b729620 Kent Overstreet 2026-01-19  621  
de374d7b729620 Kent Overstreet 2026-01-19  622  	CLASS(btree_iter, bp_iter)(trans, BTREE_ID_backpointers, work.pos, 0);
de374d7b729620 Kent Overstreet 2026-01-19  623  	struct bkey_s_c bp_k = bkey_try(bch2_btree_iter_peek_slot(&bp_iter));
de374d7b729620 Kent Overstreet 2026-01-19  624  	if (!bp_k.k || bp_k.k->type != KEY_TYPE_backpointer) /* write buffer race */
de374d7b729620 Kent Overstreet 2026-01-19  625  		return 0;
de374d7b729620 Kent Overstreet 2026-01-19  626  
de374d7b729620 Kent Overstreet 2026-01-19  627  	CLASS(btree_iter_uninit, iter)(trans);
de374d7b729620 Kent Overstreet 2026-01-19  628  	struct bkey_s_c_backpointer bp = bkey_s_c_to_backpointer(bp_k);
de374d7b729620 Kent Overstreet 2026-01-19  629  	struct bkey_s_c k = bkey_try(bch2_backpointer_get_key(trans, bp, &iter, 0, last_flushed));
de374d7b729620 Kent Overstreet 2026-01-19  630  	if (!k.k)
de374d7b729620 Kent Overstreet 2026-01-19  631  		return 0;
de374d7b729620 Kent Overstreet 2026-01-19  632  
2df58c8935f572 Kent Overstreet 2026-01-25  633  	struct bkey_buf stack_bp __cleanup(bch2_bkey_buf_exit);
2df58c8935f572 Kent Overstreet 2026-01-25  634  	bch2_bkey_buf_init(&stack_bp);
2df58c8935f572 Kent Overstreet 2026-01-25  635  	bch2_bkey_buf_reassemble(&stack_bp, bp_k);
2df58c8935f572 Kent Overstreet 2026-01-25  636  
2df58c8935f572 Kent Overstreet 2026-01-25  637  	struct bkey_buf stack_k __cleanup(bch2_bkey_buf_exit);
2df58c8935f572 Kent Overstreet 2026-01-25  638  	bch2_bkey_buf_init(&stack_k);
2df58c8935f572 Kent Overstreet 2026-01-25  639  	bch2_bkey_buf_reassemble(&stack_k, k);
2df58c8935f572 Kent Overstreet 2026-01-25  640  
de374d7b729620 Kent Overstreet 2026-01-19  641  	struct bch_inode_opts opts;
de374d7b729620 Kent Overstreet 2026-01-19  642  	struct data_update_opts data_opts = {
de374d7b729620 Kent Overstreet 2026-01-19  643  		.read_dev	= work.pos.inode,
de374d7b729620 Kent Overstreet 2026-01-19  644  		.read_flags	= BCH_READ_soft_require_read_device,
de374d7b729620 Kent Overstreet 2026-01-19  645  	};
de374d7b729620 Kent Overstreet 2026-01-19  646  	try(__do_reconcile_extent(ctxt, snapshot_io_opts, &opts, &data_opts, work, &iter, bp.v->level, k));
de374d7b729620 Kent Overstreet 2026-01-19  647  
de374d7b729620 Kent Overstreet 2026-01-19  648  	event_add_trace(c, reconcile_phys, k.k->size, buf, ({
de374d7b729620 Kent Overstreet 2026-01-19  649  		prt_newline(&buf);
2df58c8935f572 Kent Overstreet 2026-01-25  650  		bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(stack_bp.k));
de374d7b729620 Kent Overstreet 2026-01-19  651  		prt_newline(&buf);
2df58c8935f572 Kent Overstreet 2026-01-25  652  		bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(stack_k.k));
de374d7b729620 Kent Overstreet 2026-01-19  653  		prt_newline(&buf);
de374d7b729620 Kent Overstreet 2026-01-19  654  		bch2_data_update_opts_to_text(&buf, c, &opts, &data_opts);
de374d7b729620 Kent Overstreet 2026-01-19  655  	}));
de374d7b729620 Kent Overstreet 2026-01-19  656  
de374d7b729620 Kent Overstreet 2026-01-19  657  	return 0;
de374d7b729620 Kent Overstreet 2026-01-19 @658  }
de374d7b729620 Kent Overstreet 2026-01-19  659  

:::::: The code at line 658 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>

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https://github.com/intel/lkp-tests/wiki