Hi all,
One of our systems is seeing a kernel BUG with a fibre channel target
system. The system is an xeon 56xx with a qle2462 and the initiator is
vmware 5.x.
The system is ubuntu 14 LTS and we've configured FC with targetcli with
multipath enabled.
The starting configuration it's that we have both FC channel connected,
vmware sees them and without problems I can use the exported LUN for
make my bonnie++ tests. bonnie++ are executed inside a virtual machine
that has it's hard disk inside the LUN exported.
For our multipath tests we detach one of FC optical patch, the system
(vmware) waits about 20 seconds and the after bonnie++ writes continue.
The bug/crash is repeatable and it happens every time I reconnect FC
optical patch: after about 30/40 sec, FC is renegotiated and after other
30/40 sec, the system becomes unresponsive and I receive a lot of kernel
log msg like:
Performing ISP error recovery - ha=ffff880466e5c000.
qla2xxx [0000:10:00.0]-505f:9: Link is operational (4 Gbps)
TARGET_CORE[qla2xxx]: Detected NON_EXISTENT_LUN Access for 0x00000001
Error entry - invalid handle/queue.
Which logs do you need for debug it?
Thanks,
Michele
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