watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [kcompactd0:1661]
Modules linked in:
irq event stamp: 31430
hardirqs last  enabled at (31429): [<ffffffff89000c02>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
hardirqs last disabled at (31430): [<ffffffff88e454bd>] irqentry_enter+0x1d/0x50 kernel/entry/common.c:344
softirqs last  enabled at (2476): [<ffffffff89000eaf>] asm_call_irq_on_stack+0xf/0x20
softirqs last disabled at (2465): [<ffffffff89000eaf>] asm_call_irq_on_stack+0xf/0x20
CPU: 0 PID: 1661 Comm: kcompactd0 Not tainted 5.9.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:csd_lock_wait kernel/smp.c:227 [inline]
RIP: 0010:smp_call_function_many_cond+0x7ac/0x9d0 kernel/smp.c:689
Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 66 28 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 9b 00 00 00 8b 43 08 31
RSP: 0018:ffffc90005d576e0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff88802cc38d40 RCX: ffffffff81641fe0
RDX: ffff888016a08cc0 RSI: ffffffff81641fba RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000000 R09: ffffffff8cecb573
R10: 0000000000000000 R11: 0000000000000000 R12: ffffed10059871a9
R13: 0000000000000002 R14: ffff88802cc38d48 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd5e85eae30 CR3: 000000000b08e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 on_each_cpu_cond_mask+0x50/0x160 kernel/smp.c:899
 __buffer_migrate_page+0x8f0/0xca0 mm/migrate.c:798
 move_to_new_page+0x34a/0xf00 mm/migrate.c:965
 __unmap_and_move mm/migrate.c:1131 [inline]
 unmap_and_move mm/migrate.c:1197 [inline]
 migrate_pages+0x1f2e/0x30a0 mm/migrate.c:1453
 compact_zone+0x1ca0/0x3ba0 mm/compaction.c:2314
 kcompactd_do_work+0x2c9/0x730 mm/compaction.c:2724
 kcompactd+0x25d/0xd00 mm/compaction.c:2819
 kthread+0x3af/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296