Why is the system not able to access the san storage through lpfc driver after upgrading to Red Hat Enterprise Linux 5 update 5 kernel ?

Solution Verified - Updated -

Issue

Right after an update to RHEL5.5, the SAN can not be accessed anymore with the LPFC driver. Following messages are seen in /var/log/messages at the boot time :

kernel: lpfc 0000:0d:00.0: 0:0310 Mailbox command x5 timeout Data: x0 x700 xffff81010cbcbe00
kernel: lpfc 0000:0d:00.0: 0:0345 Resetting board due to mailbox timeout
kernel: lpfc 0000:0d:00.0: 0:(0):2530 Mailbox command x23 cannot issue Data: xd00 x2

Environment

  • Red Hat Enterprise Linux 5 update 5 (kernel-2.6.18-194.X)
  • Emulex Host Adapter (lpfc driver 0:8.2.0.63.3p)

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