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<div><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 16pt; background-color: window; line-height: normal; widows: 1;">This patch implements an option '-u' which uses the information </span><span style="color: rgb(31, 73, 125); font-family: Calibri, sans-serif; font-size: 16pt; background-color: window; line-height: normal; widows: 1;">from the program environment when checking the device.</span></div>
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<div style="widows: 1;"><font color="#1f497d" face="Calibri, sans-serif"><span style="line-height: normal;">the function don't be found some problems.</span></font></div>
<div style="text-align: justify; widows: 1;"><font color="#1f497d" face="Calibri, sans-serif"><span style="line-height: 20px;">Whiling using the command '</span></font><span style="background-color: rgba(0, 0, 0, 0); color: rgb(31, 73, 125); font-family: 'Calibri, sans-serif'; font-size: 16pt; line-height: 1.5;">udevadm
test /sys/block/sdb',</span><span style="background-color: rgba(0, 0, 0, 0); color: rgb(31, 73, 125); font-size: 16pt; line-height: 1.5;"> som</span><font color="#1f497d"><span style="line-height: 1.5;">e err</span><span style="line-height: 1.5;">or lo</span><span style="line-height: 1.5;">gs,
such as</span><span style="line-height: 24px;">/sbin/multipath -u sdb'(err)</span></font></div>
<div style="text-align: justify; widows: 1;"><font color="#1f497d" face="Calibri, sans-serif"><span style="background-color: rgb(255, 255, 255);"><span style="line-height: 20px;">So I don't know what is th</span><span style="line-height: 20px;">at? I</span><span style="line-height: 30px;">s
it a </span><span style="line-height: 30px;">potential risk ? </span></span></font><font style="font-size: 16pt; line-height: 1.5; background-color: window; color: rgb(31, 73, 125); font-family: Calibri, sans-serif;">Thanks a lots</font><font style="font-size: 16pt; background-color: window; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; line-height: normal;">.
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<div><span style="font-size: 16px;"></span><span style="background-color: rgba(0, 0, 0, 0);"><span style="font-size: 16px;">udev_rules_apply_to_event: PROGRAM '/sbin/multipath -u sdb' /lib/udev/rules.d/95-multipath.rules:20
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">udev_event_spawn: starting '/sbin/multipath -u sdb'
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<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(err) 'libudev: udev_device_new_from_syspath: device 0x55ee912a0b50 has devpath '/devices/platform/host72/session70/target72:0:0/72:0:0:0''
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(err) 'libudev: udev_device_new_from_syspath: device 0x55ee912a1ee0 has devpath '/devices/platform/host72/session70/target72:0:0''
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(err) 'libudev: udev_device_new_from_syspath: device 0x55ee912a2980 has devpath '/devices/platform/host72/session70''
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(err) 'libudev: udev_device_new_from_syspath: device 0x55ee912a1b70 has devpath '/devices/platform/host72''
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(err) 'libudev: udev_device_new_from_syspath: device 0x55ee912a4230 has devpath '/devices/platform''
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(err) 'libudev: udev_device_new_from_syspath: device 0x55ee912a2f90 has devpath '/devices/platform/host72/session70/iscsi_session/session70''
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_read: '/sbin/multipath -u sdb'(out) 'sdb is a valid multipath device path'
</span><br style="font-size: 16px;">
<span style="font-size: 16px;">spawn_wait: '/sbin/multipath -u sdb' [42931] exit with return code 0 </span><br>
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<div>zhangguanghui</div>
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