BUG: sleeping function called from invalid context at mm/util.c:743 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6661, name: syz.1.169 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by syz.1.169/6661: #0: ffff888148d037c8 (&mapping->i_private_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #0: ffff888148d037c8 (&mapping->i_private_lock){+.+.}-{3:3}, at: __buffer_migrate_folio+0x25b/0x690 mm/migrate.c:853 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 UID: 60928 PID: 6661 Comm: syz.1.169 Not tainted 6.15.0-rc3-syzkaller-00019-gbc3372351d0c #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+0x1d9/0x700 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 do_mbind+0x6f0/0xf30 mm/mempolicy.c:1425 kernel_mbind+0x1e3/0x1f0 mm/mempolicy.c:1568 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f54bb98e169 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:00007f54bc734038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed RAX: ffffffffffffffda RBX: 00007f54bbbb6080 RCX: 00007f54bb98e169 RDX: 0000000100000000 RSI: 0000000100000004 RDI: 0000000000000000 RBP: 00007f54bba10a68 R08: 0020000000000006 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f54bbbb6080 R15: 00007ffd70787de8