WARNING: LinChar: LinuxCharWrite: on HP DL320e G8 V2

[_rbn_]

I get this error log... lots of them.

2015-02-27T23:41:47.120Z cpu0:35248)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 1 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

2015-02-27T23:41:47.120Z cpu0:35248)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 2 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

2015-02-28T00:41:59.878Z cpu1:35248)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 3 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

2015-02-28T00:41:59.878Z cpu1:35248)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 4 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

2015-02-28T01:04:26.900Z cpu0:35251)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 5 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

2015-02-28T01:12:11.791Z cpu0:35248)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 6 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

2015-02-28T01:33:20.173Z cpu0:35251)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 7 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)

I found some info pointing at restarting hp-snmp-agents.

This is a machine with iLO, but not iLO2 as stated for this known problem, and I dont find any hp-snmp-agents to restart on the host.

Any one know that this might be... what can I do to stop it? I am on the custom HP ESXi 5.5 U2 build

//rbn

[Putuque]

For the record:
Same here:ESXi 5.5

2015-03-23T12:08:04.354Z cpu8:35440)WARNING: LinChar: LinuxCharWrite:574: This message has repeated 12 times: M=233 m=0 flags=0x101002 write 8 bytes at offset 0x0 failed (-16)
with
HP DL385 G7 - Custom HP Build ESXi 5.5 U2 (2302651)

[Alistar]

Hello,

as I am aware this was caused by iLO/management agent combinaton - can you try updating both on a test host preferrably?

[_rbn_]

I did update everything but still got the same message. As I said, I could not even find any hp-snmp-agents to restart as stated by HP.

//rbn

[Yippeekayaye]

There is a KB that addresses this exact issue for a HP Host:

VMware KB: The vmkernel logs report a warning containing LinChar and LinuxCharWrite

[ivanerben]

Same here on BL460cG8, with latest updates

ESXi 5.5 Update3 3568722

HPE driver bundles hpe-driver-bundle-550.9.5.0

HPE ESXi 5.5 Managnet bundle 2.5.0-19

iLO 2.40

[vKopp]

I have the same bug with my DL580 Gen8.

But HPE thinks, is not a bug, it's feature (!?!)

....

HPE CUSTOMER ADVISORY - Document ID:  c05169530

http://hpsc-pro-athp.austin.hpe.com/hpsc/doc/public/display?docId=emr_na-c05169530&sp4ts.oid=7271227...

RESOLUTION

These failed write messages occur when an application/service writes to the iLO 4 channel driver without adequate free channels available in iLO 4 to accept the write request.

These messages can be safely ignored as subsequent writes will be allowed once channels become open.