centos7.6 系统日志报错并重启

hi青蛙

WARNING: CPU: 7 PID: 3311 at lib/list_debug.c:53 __list_del_entry+0x63/0xd0
Apr 14 03:11:44 hisdb kernel: Hardware name: Bochs Bochs, BIOS rel-1.7.5.1-20180921_224418 04/01/2014
Apr 14 03:11:44 hisdb kernel: Workqueue: events_freezable update_balloon_size_func [virtio_balloon]
Apr 14 03:11:44 hisdb kernel: Call Trace:
Apr 14 03:11:44 hisdb kernel: [<ffffffff91961dc1>] dump_stack+0x19/0x1b
Apr 14 03:11:44 hisdb kernel: [<ffffffff91297648>] __warn+0xd8/0x100
Apr 14 03:11:44 hisdb kernel: [<ffffffff912976cf>] warn_slowpath_fmt+0x5f/0x80
Apr 14 03:11:44 hisdb kernel: [<ffffffff91594a23>] __list_del_entry+0x63/0xd0
Apr 14 03:11:44 hisdb kernel: [<ffffffff91594a9d>] list_del+0xd/0x30
Apr 14 03:11:44 hisdb kernel: [<ffffffff913c4477>] __page_cache_release.part.20+0xa7/0x150
Apr 14 03:11:44 hisdb kernel: [<ffffffff913c4539>] __put_single_page+0x19/0x30
Apr 14 03:11:44 hisdb kernel: [<ffffffff913c4595>] put_page+0x45/0x60
Apr 14 03:11:44 hisdb kernel: [<ffffffffc020d554>] leak_balloon+0x134/0x1d0 [virtio_balloon]
Apr 14 03:11:44 hisdb kernel: [<ffffffffc020d9d2>] update_balloon_size_func+0x272/0x290 [virtio_balloon]
Apr 14 03:11:44 hisdb kernel: [<ffffffff912b7f5b>] ? __queue_delayed_work+0x8b/0x1a0
Apr 14 03:11:44 hisdb kernel: [<ffffffff912b9d4f>] process_one_work+0x17f/0x440
Apr 14 03:11:44 hisdb kernel: [<ffffffff912bade6>] worker_thread+0x126/0x3c0
Apr 14 03:11:44 hisdb kernel: [<ffffffff912bacc0>] ? manage_workers.isra.25+0x2a0/0x2a0
Apr 14 03:11:44 hisdb kernel: [<ffffffff912c1c31>] kthread+0xd1/0xe0
Apr 14 03:11:44 hisdb kernel: [<ffffffff912c1b60>] ? insert_kthread_work+0x40/0x40
Apr 14 03:11:44 hisdb kernel: [<ffffffff91974c37>] ret_from_fork_nospec_begin+0x21/0x21
Apr 14 03:11:44 hisdb kernel: [<ffffffff912c1b60>] ? insert_kthread_work+0x40/0x40
Apr 14 03:11:44 hisdb kernel: ---[ end trace 10b277248b6f6d28 ]---
Apr 14 03:11:44 hisdb kernel: BUG: Bad page state in process kworker/7:1  pfn:450514
Apr 14 03:11:44 hisdb kernel: page:ffffd44391414500 count:0 mapcount:0 mapping:ffff9bab096611b0 index:0xa
94be
Apr 14 03:11:44 hisdb kernel: page flags: 0x2fffff0002000c(referenced|uptodate|mappedtodisk)
Apr 14 03:11:44 hisdb kernel: page dumped because: non-NULL mapping

hi青蛙

咋没人呢

sgj584520

参考：https://lkml.org/lkml/2020/2/18/1016

hi青蛙

找到原因了 ，因为虚拟机开启了，内存自动释放功能