mysql导致机器死机！
线上正在运行的服务器，mysql服务无法重启或关闭，凡是有相关的操作，机器就是死机一小会，并报如下错误：default_do_nmi+0x86/0x214
do_nmi+0x43/0x61
nmi+0x7f/0x88
list_del+0xe/0x71
cache_alloc_refill+0xf1/0x186
kmem_cache_alloc+0x6c/0x76
mempool_alloc_ioend+0x31/0xe7
:xfs:xfs_alloc_ioend+0x1a/0xe0
:xfs:xfs_add_to_ioend+0x2e/0x82
:xfs:xfs_page_state_convert+0x435/0xb52
__up_write+0x27/0xf2
:xfs:xfs_iunlock+0x2a/0x79
:xfs:xfs_write+0x904/0x94e
:xfs:xfs_vm_writepage+0xa7/0xdd
mpage_writepages+0x1ab/0x34c
:xfs:xfs_vm_writepage+0x0/0xdd
do_sync_write+0xc7/0x104
do_page_fault+0x4fe/0x830
do_writepages+0x20/0x2f
__filemap_fdatawrite_range+0x50/0x5b
do_fsync+0x2f/0xa3
__do_fsync+0x23/0x36
tracesys+0xd5/0xe0
期待大牛解读，谢谢！
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