BUG: sleeping function called from invalid context at mm/util.c:743 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6736, name: syz.4.209 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 2 locks held by syz.4.209/6736: #0: ffff88807b57c420 (sb_writers#3){.+.+}-{0:0}, at: splice_direct_to_actor+0x345/0xa30 fs/splice.c:1102 #1: ffff888023f9ac48 (&mapping->i_private_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #1: ffff888023f9ac48 (&mapping->i_private_lock){+.+.}-{3:3}, at: __buffer_migrate_folio+0x25b/0x690 mm/migrate.c:853 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 6736 Comm: syz.4.209 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120 __might_resched+0x3c0/0x5e0 kernel/sched/core.c:8818 folio_mc_copy+0xfb/0x190 mm/util.c:743 __migrate_folio.constprop.0+0xa1/0x3d0 mm/migrate.c:758 filemap_migrate_folio mm/migrate.c:943 [inline] __buffer_migrate_folio+0x5cd/0x690 mm/migrate.c:874 move_to_new_folio+0x1dc/0x700 mm/migrate.c:1050 migrate_folio_move mm/migrate.c:1358 [inline] migrate_folios_move mm/migrate.c:1710 [inline] migrate_pages_batch+0x201d/0x31a0 mm/migrate.c:1957 migrate_pages_sync+0x12d/0x8a0 mm/migrate.c:1987 migrate_pages+0x1b28/0x2350 mm/migrate.c:2096 compact_zone+0x1f6c/0x45f0 mm/compaction.c:2689 compact_node+0x1a4/0x2d0 mm/compaction.c:2958 compact_nodes mm/compaction.c:2980 [inline] sysctl_compaction_handler mm/compaction.c:3031 [inline] sysctl_compaction_handler+0x141/0x210 mm/compaction.c:3018 proc_sys_call_handler+0x3c2/0x5c0 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0x91f/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x192/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x345/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xafd/0xe50 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1423 [inline] __se_sys_sendfile64 fs/read_write.c:1415 [inline] __x64_sys_sendfile64+0x154/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f135858d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1359370038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f13587a5fa0 RCX: 00007f135858d169 RDX: 00002000000000c0 RSI: 0000000000000003 RDI: 0000000000000005 RBP: 00007f135860e990 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f13587a5fa0 R15: 00007ffc69787b48