今天突然发现/占了将近30G，检查一下发现log目录占了20G

[sinoyster]

-rw-r----- 1 syslog adm 9.4G Apr 28 08:04 syslog.1
-rw-r----- 1 syslog adm 9.5G Apr 28 08:46 kern.log

日志都是报：
Apr 27 20:45:20 yuk-dev kernel: [37464.615958] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0
Apr 27 20:45:20 yuk-dev kernel: [37464.616078] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0
Apr 27 20:45:20 yuk-dev kernel: [37464.616199] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0
Apr 27 20:45:20 yuk-dev kernel: [37464.616333] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0
Apr 27 20:45:20 yuk-dev kernel: [37464.616468] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0
Apr 27 20:45:20 yuk-dev kernel: [37464.616625] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0
Apr 27 20:45:20 yuk-dev kernel: [37464.616775] DMA: Out of SW-IOMMU space for 16 bytes at device 0000:00:1a.0

这种，何解？

[eexpress]

搜索此字符串嘛。
要不，删除log。

[tonychee7000]

进/var/log 然后 :>[log文件]