[sles-beta] SLES11-SP3 Beta4 lpfc Problem : lpfc 0000:04:00.3: 1:3300 In-use FCF (0) modified, perform FCF rediscovery, SAN LUNs get lost

[urs.frey at post.ch]

Hi

On my HP Proliant BL465cG7 Blade, where I am testing SLES11-SP3 x86_64 I regulary loose all my SAN LUNs.

I am using FCoE with an Emulex NC551i CAN, using the lpfc kernel module
h04wwl:/var/log # modinfo lpfc
filename:       /lib/modules/3.0.70-0.9-default/kernel/drivers/scsi/lpfc/lpfc.ko
version:        0:8.3.7.10.2p
author:         Emulex Corporation - tech.support at emulex.com
description:    Emulex LightPulse Fibre Channel SCSI driver 8.3.7.10.2p
license:        GPL
srcversion:     4A4D0932E7D89C0CA257509
alias:          pci:v000010DFd0000072Csv*sd*bc*sc*i*

In my /var/log/messages I can see many hundreds of messages "in-use FCF"

h04wwl:/var/log # tail messages
Apr 26 11:51:49 h04wwl kernel: [182285.584580] lpfc 0000:04:00.3: 1:2546 New FCF event, evt_tag:x27fb8c, index:x0
Apr 26 11:51:49 h04wwl kernel: [182285.584597] lpfc 0000:04:00.3: 1:3300 In-use FCF (0) modified, perform FCF rediscovery
Apr 26 11:51:49 h04wwl kernel: [182285.651766] lpfc 0000:04:00.2: 0:2546 New FCF event, evt_tag:x756f, index:x0
Apr 26 11:51:49 h04wwl kernel: [182285.651784] lpfc 0000:04:00.2: 0:3300 In-use FCF (0) modified, perform FCF rediscovery
Apr 26 11:51:49 h04wwl kernel: [182285.673526] lpfc 0000:04:00.3: 1:2546 New FCF event, evt_tag:x27fb8d, index:x0
Apr 26 11:51:49 h04wwl kernel: [182285.673544] lpfc 0000:04:00.3: 1:3300 In-use FCF (0) modified, perform FCF rediscovery
Apr 26 11:51:49 h04wwl kernel: [182285.740705] lpfc 0000:04:00.2: 0:2546 New FCF event, evt_tag:x7570, index:x0
Apr 26 11:51:49 h04wwl kernel: [182285.740724] lpfc 0000:04:00.2: 0:3300 In-use FCF (0) modified, perform FCF rediscovery
Apr 26 11:51:49 h04wwl kernel: [182285.762341] lpfc 0000:04:00.3: 1:2546 New FCF event, evt_tag:x27fb8e, index:x0
Apr 26 11:51:49 h04wwl kernel: [182285.762360] lpfc 0000:04:00.3: 1:3300 In-use FCF (0) modified, perform FCF rediscovery
h04wwl:/var/log #

This is critical, as a save operation attached to SAN storage is not possible

Thank you very much for your feedback


Urs Frey
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