IV64670: UNMOUNT OF AUTOMOUNT FILESYSTEMS OR STOPWPAR CAN HANG IN WPAR APPLIES TO AIX 7100-03
A fix is available
Closed as program error.
On AIX systems with WPARs, where the WPARs are setup for automount, unmount of the autofs mount points or even the stopwpar command could hang. The dump from the time of the problem shows an aump thread stuck in: (0)> f 583 pvthread+024700 STACK: [001051A0]e_block_thread+000280 () [004F1244]sosbwait+0003C4 (??, ??) [0054A36C]soereceive+00146C (??, ??, ??, ??, ??, ??, ??) soreceive+000010 (??, ??, ??, ??, ??, ??) [00014F50].kernel_add_gate_cstack+000030 () [062444E0]clntkudp_callit+000BE0 (F1000A00E0EA4628, 0000000000000000, 0000000006299BD8, 0000000000000000, 0000000006299BD8, 0000000000000000, 0000000000000002, 0000000000000000) [F1000000C054F3A4]auto_calldaemon+000204 (??, ??, ??, ??, ??, ??, ??, ??) [F1000000C054BBF8]auto_null_request+000078 (??, ??, ??) [F1000000C0549960]unmount_tree+000260 () [00014D70].hkey_legacy_gate+00004C () [00267D08]threadentry+000088 (??, ??, ??, ??) [kdb_read_mem] no real storage @ FFFFFFFFFFF8D40 And the dump will also show that there is no automountd daemon running on the WPAR. Only a reboot of the global system will help recover from this WPAR being in hung state.
None. Global system needs to be rebooted to recover from the WPAR hang.
When WPARs are setup for automount, unmount of the autofs mount points or even the stopwpar command could hang after automount daemon is stopped.
Handle automount exit as needed.
7100-03 - use AIX APAR IV64670
Reported component name
Reported component ID
Last modified date
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fixed component name
Fixed component ID
Applicable component levels
R710 PSY U865826
UP15/05/19 I 1000
PTF to Fileset Mapping
U865826 bos.net.nfs.client 188.8.131.52
More support for:
AIX Enterprise Edition
Software version: 710
Operating system(s): AIX
Reference #: IV64670
Modified date: 31 December 2015