Here we are trying to create a virtual device using mkdev and the device is already populated in the namespace and the corresponding ODMs but the command mkdev is in a hang state and not coming out.
In kernel, it is waiting at et_wait().
Code:
(0)> p * | grep mkdev
pvproc+10B400 1069 mkdev ACTIVE 042D080 017A0EE 0000000046F14400 0 0001
(0)> tpid 042D080
SLOT NAME STATE TID PRI RQ CPUID CL WCHAN
pvthread+072F00 1839 mkdev SLEEP 72F077 03C 0 0
(0)> f 1839
pvthread+072F00 STACK:
[00055C74]et_wait+000298 (00000000D01D3A38, 000000000000D0B2,
0000000000000400 [??])
[00463720]poll_wait+0000A4 (??, ??)
[0047C28C]_select+000BD0 (??, ??, ??, ??, ??, ??)
[00003810].svc_instr+000110 ()
[D044E220]D044E220 ()
[kdb_get_virtual_memory] no real storage @ 2FF1E7E042244234
(0)>
The following link is saying that the et_wait can miss the events. But it is fixed long back and did go through the section "PTF to Fileset Mapping" and fond that the package "bos.up" is missing on this server.
AIX server details are as follows:
Code:
bash-3.2# oslevel -s
5300-12-05-1140
bash-3.2#
Has anyone witnessed the same? Is this really fixed in this version of AIX kernel?
With Thanks,
Prasad
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Last edited by zaxxon; 11-12-2013 at 05:30 AM..
Reason: code tags
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11-12-2013
AIX: mkdev is waiting in kernel at et_wait
