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Description
This article is a PICLD Overview and addresses Fixes To Common Bugs.
Steps to Follow
What is the name of the Environment Monitoring and Control daemon.
picld - PICL daemon
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Brief description of PICLD
The Platform Information and Control Library (PICL) provides a mechanism to
publish platform-specific information for clients to access in a
platform-indpendent way. PICLD maintains and controls the PICL information
from clients and plug-in modules. The daemon is started in both single-user and
multi-user bootmode.
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The first version picld is included in: Solaris[TM] 8
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Platforms supported on are:
Sun Fire[TM] 280R
Sun Fire[TM] 480R
Sun Fire[TM] 490
Sun Fire[TM] 880
Sun Fire[TM] 890
Sun Blade[TM] 1000
Netra[TM] T4 aka Netra[TM] 20
Netra[TM] T12 aka Netra[TM] 1280
Sun Fire[TM] V1280
Sun Fire[TM] E2900
Sun Fire[TM] 4800
Sun Fire[TM] 4900
Sun Fire[TM] 6800
Sun Fire[TM] 6900
Sun Fire[TM] 12K/15K
Sun Fire[TM] 20K/25K --------------------------------------------------------------------------------Files: PICL daemon door: /var/run/picld_door PICL daemon: /usr/lib/picl/picld Start/stop script: /etc/init.d/picld --------------------------------------------------------------------------------Is the PICL daemon necessary for system use or can it be shutdown without impacting functionality Although the system would not have the ability to monitor system eventsthe system would continue to run. Monitoring of all removal and insertion activities, temperature ranges exceeding thresholds, fan failures, and power failures would not be reported at Solaris level. If the picld daemon fails to start, then environment daemon (piclenvd) won't be running and CPU temperatures won't be monitored. This can resultin CPU overheating. In addition to this, there are a number of other subsystems that may depend on this daemon. /usr/sbin/prtdiag is just one example of this. -------------------------------------------------------------------------------- Does 'picld 'daemon send messages to system console and/var/adm/messages file Yes, the 'picld' deamon provides output to the system console and the /var/adm/messages file when certain events are detected. These eventsinclude removal and insertion, temperature & fault conditions. Note - When replacing a fan tray or power supply, insert the new device after a console message displays indicating the old device has been removed.Caution - The software polling process takes up to 30 seconds to recognize device insertion or removal, so allow sufficient time before inserting a device into a recently cleared slot.Note - Replace the primary fan trays before the secondary, especially in the case of the CPU fan trays. The primary CPU fan tray operates at a variable speed and is used to control the temperature of the CPUs.===============================================================================Here are some of the known bugs commonly encountered:Following errors are reported in /var/adm/messages afterOS installation is complete on SUNW,Sun-Fire-280R, Bug-ID# 4458436 May 17 09:05:30 d34c picld[69]: [ID 299567 daemon.error] No FRU Informationfor CPU0_DIE_TEMPERATURE_SENSOR using default temperatures May 1709:05:30 d34c picld[69]: [ID 478985 daemon.error] ERROR runningpsvc_update_thresholds_0 on CPU1_DIE_TEMPERATURE_SENSOR (1604840) May 17 09:05:30 d34cpicld[69]: [ID 875627 daemon.error] No such file or directorySuggested Fix: apply Patch-ID# 110460-08 --------------------------------------------------------------------------------picld will sometimes display errors after power supply hot plug. Messages from console output, Bug-ID# 4431165 Mar 28 14:07:46 wgs48-58 picld[70]: Device PS0 removed Mar 28 14:07:51wgs48-58 picld[70]: Device PS0 inserted Mar 28 14:07:58 wgs48-58 picld[70]: DevicePS0 removed Mar 28 14:08:07 wgs48-58 picld[70]: ERROR running psvc_ps_device_fail_notifier_policy_0 on PS0 (2361480) Mar 28 14:08:07wgs48-58 picld[70]: No such device or addressSuggested Fix: apply Patch-ID# 110849-04 --------------------------------------------------------------------------------picld daemon errors in /var/adm/messages with >1GB RAM is installed: Bug-ID#s 4432412 and 4451949Mar 29 15:45:40 option3 picld[88]: [ID 325715 daemon.error] SUNW_piclmemcfg physical memory tree failed! Mar 29 15:47:05 option3 pseudo: [ID 129642 kern.info] pseudo-device: devinfo0 Mar 29 15:47:05 option3 genunix: [ID936769 kern.info] devinfo0 is /pseudo/devinfo@0Suggested Fix: apply Patch-ID# 110460-01 --------------------------------------------------------------------------------The following errors are sometimes seen when inserting a power supply:Bug-ID#s 4413285 , 4414411 , and 4356073 Feb 7 14:11:02 wgs48-76 picld[77]: Device PS0 removed Feb 7 14:11:12wgs48-76 picld[77]: ERROR running psvc_ps_device_fail_notifier_policy_0 on PS0 Feb7 14:11:12 wgs48-76 picld[77]: No such device or address Feb 7 14:11:12wgs48-76 picld[77]: ERROR running psvc_ps_overcurrent_check_policy_0 on SYSTEMSuggested Fix: apply Patch-ID# 111792-17 --------------------------------------------------------------------------------In addition picld daemon may encounter memory issues:Bug-ID#s 4431402 and 4417600 Sending lots of SIGHUP signal to picld daemon causes picld to grow over time,indicating some kind of memory leak.Suggested Fix: apply Patch-ID# 108528--------------------------------------------------------------------------------
Why is picld using 1.3 % of CPU and 57% of memory Bug-ID# 4515266
USER PID %CPU %MEM SZ RSS TT S START TIME COMMAND
root 195 1.3 57.2 122832722282528 S Jan 07 2027:11
The first is to restart picld before the leak causes problems on the system
or messages on the console.
If the picld process ended running out of memory every week you could simply
restart picld before that time and you would never see the out of memory
error. To do this you simply run...
#/etc/init.d/picld stop
#/etc/init.d/picld start
Suggested Fix: apply Patch-ID# 110849-09
--------------------------------------------------------------------------------picld uses fork() to restart itself, which may cause deadlock on certainmemory corruption errors:Bug-ID# 4459534 picld restarts itself in subnormal mode when unexpected errors areencountered during its execution. It starts up in degraded mode first, and then in failsafe mode, before exiting. The main reason for doing this is to allow critical functionality, like environmental monitoring, to continue.Suggested Fix: apply Patch-ID# 108528--------------------------------------------------------------------------------picld alignment panic occurred during DR test libcfgadm_031_040:Bug-ID# 4401168 panic[cpu8]/thread=30018e83980: BAD TRAP: type=34 rp=f0472d40 addr=6969696969696979 mmu_fsr=0 picld: alignment error:addr=0x6969696969696979 pid=100070, pc=0xf003efb4, sp=0xf0472601, tstate=0x0, context=0x1801o0-o7: f0801e60, f0826ba0, 0, f0826e60, 300183fa840, 30000102000, f0472601,f002f620 g1-g7: 0, 0, 101a3b98, f0801e60, 186a0, 10471778,104717a200000000f0472a50 unix:die+b0 (34, f0472d40, 6969696969696979, 0,f0472d40,10432ed0 %l0-3: 0000042c00001000 00000c6800000e29 00000000000000000000000000000001 %l4-7: 0000000000000000 0000000000000001 000000000000000200000000f08067f0 00000000f0472b30 unix:trap+64c (0, 0, 10000, 0, f0472d40, 0) %l0-3: 0000000000010200 0000030018c98ac0 0000000000000000 0000000000007fe%l4-7: 0080000900000034 0000030018e87530 000000000080000900000000104bda70 00000000f0472c90 unix:user_rtt+32c (2a1006517fc, 9, 0, 2a100651738, a,0)%l0-3: 0000000000000006 0000000000001400 00000000800016050000000010037040 %l4-7: 0000000000000000 0000000000000000 000000000000000000000000f0472d40 00000000f0472de0 f003ef90 (0, 1f, 16, 3c, 0, f08296c0) %l0-3:0000000000000000 0000000000000000 0000000000000005 00000000f043922 %l4-7:0000000000000000 0000000000000000 0000000000000000 0000000000000001 panic: enteringdebugger (continue to save dump) Type 'go' to resume debugger entered.Suggested Fix: apply Patch-ID# 110918-03 or latest KJP 108528-15 |
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發(fā)表于 2010-09-08 17:52
