Hi there
this happened:
# cat /proc/mdstat
...other arrays not including sdb3...
md2 : active raid1 sda3[0]
52428728 blocks super 1.2 [2/1] [U_]
bitmap: 6/200 pages [24KB], 128KB chunk
...other arrays not including sdb3...
strangely sdb3 was not added to array at boot, I am still investigating
that, but now see this:
# mdadm --incremental /dev/sdb3
mdadm: failed to open /dev/md2: Device or resource busy.
#strace mdadm --incremental /dev/sdb3
...lots of stuff, then...
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
nanosleep({0, 200000000}, NULL) = 0
open("/dev/md2", O_RDWR|O_EXCL) = -1 EBUSY (Device or resource busy)
........
write(2, "mdadm: failed to open /dev/md2: "..., 57mdadm: failed to open
/dev/md2: Device or resource busy.
) = 57
hmmm... strange thing, I just booted and md2 is not even mounted...
but now see this:
# mdadm /dev/md2 --add /dev/sdb3
mdadm: re-added /dev/sdb3
worked perfectly!
So?
Bug?
Thank you
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