linux can not umount 'device is busy'

fuser-mfileordirectory与fuser-mvkifileordirectory解析
本文深入探讨了fuser-mfileordirectory和fuser-mvkifileordirectory的功能及用法,详细解释了它们在文件系统管理中的作用。

fuser -m file or directory

fuser -mvki file or directory.

根据打印分析设备重启原因和解决办法 ifconfig: eth0: error fetching interface information: Device not found [TUYAP][639]:WB recv: 0 reset ipc success. please restart the ipc 4 curr event:5 umount: can't remount /dev/mtdblock6 read-only umount: /dev/mtdblock7 busy - remounted read-only umount: tmpfs busy - remounted read-only umount: devtmpfs busy - remounted read-only The system is going down NOW! [signal_handle, 94] get signal(15) thread(412) name(tuya_ipc_5) Sent SIGTERM to all processes Sent SIGKILL to all processes Requesting system reboot isp_wait_capture_pause wait event ret:-110 isp_id:0 ispdrv_uninit 3747 isp_vi_stop_capturing 2471 isp_vi_stop_capturing 2474 isp2_module_fini 6671, R00:0x0,R04:0x10e0780,R08:0x18000000,R0c:0x16007001,R10:0xfc0000,R14:0x0,R18:0x0,R1c:0x16800000,R20:0x0 isp2_module_fini 6685, R00:0x0,R04:0x10e0780,R08:0x18000000,R0c:0x16007001,R10:0xfc0000,R14:0x0,R18:0x0,R1c:0x16800000,R20:0x0 dma free vir:0xc4c93000, phy:0x80e4c000, bytes=8568 dma free vir:0xc4c8e000, phy:0x80e48000, bytes=12624 ispdrv_uninit 3772, release main osd addr: (null) ispdrv_uninit 3779, release main osd res ok ispdrv_uninit 3783, release sub osd addr: (null) ispdrv_uninit 3772, release main osd addr: (null) ispdrv_uninit 3779, release main osd res ok ispdrv_uninit 3783, release sub osd addr: (null) ispdrv_uninit 3772, release main osd addr: (null) ispdrv_uninit 3779, release main osd res ok ispdrv_uninit 3783, release sub osd addr: (null) reboot: Restarting system
07-02
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