Symptoms

Run a supportsave or supportshow Processor rebooted - Software Fault:Kernel Panic while running supportsave logserrdump -a :[HAM-1004], 4602, CHASSIS, INFO, , Processor rebooted - Software Fault:Kernel Panic.[TRCE-1001], 4603, CHASSIS, WARNING, , Trace dump available ! (reason: PANIC).[TRCE-1004], 4604, CHASSIS, WARNING, , Trace dump was not transferred because trace auto-FTP disabled.panic dump shows:kernel BUG in ppc_booke_sw_wdt_heartbeat at drivers/char/watchdog/booke_wdt.c:120!Oops: Exception in kernel mode, sig: 5 [#1]NIP: 4014143C LR: 4014143C SP: 9504B560 REGS: 9504b4b0 TRAP: 0700 DBCR0:00000000 Tainted: P MSR: 00021200 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00TASK = 915106b0[27773] 'cat' THREAD: 95048000Last syscall: 3GPR00: 4014143C 9504B560 915106B0 00000004 00017805 FFFFFFFF 40330000 402D2850GPR08: 402D0000 40310000 00000000 40330000 00000000 1001A138 C1640840 C1650000GPR16: 00000000 00001000 C9780000 00000271 00000001 CA190000 40335300 40340000GPR24: 40330000 40340000 00001234 5FEF3780 40330000 40330000 9504B5B0 40330000NIP [4014143c] ppc_booke_sw_wdt_heartbeat+0xc0/0xc8LR [4014143c] ppc_booke_sw_wdt_heartbeat+0xc0/0xc8Call trace:9504b570 [40004618] timer_interrupt+0x1c4/0x2089504b5a0 [40002b4c] ret_from_except+0x0/0x189504b660 [c15433f4] c3_rte_error_handler+0x25c/0x978 [condor3_module]9504b6f0 [c1405b74] c3_rte_error_intr_service+0x124/0x1dc [condor3_module]9504b760 [c140a950] c3_error_intr_service+0x1444/0x2ea4 [condor3_module]9504ba50 [c140cc10] c3_intr_handler+0x378/0x1ca4 [condor3_module]9504bb70 [c141bb00] c3_hi_service+0x7c/0x754 [condor3_module]9504bc10 [c141c2fc] asic_c3_hi_service+0x124/0x19c [condor3_module]9504bc30 [c15b6dbc] asic_hi_tasklet+0xb4/0x108 [condor3_module]9504bc60 [400270b8] tasklet_hi_action+0x78/0xe49504bc80 [40026b80] __do_softirq+0xb0/0x1489504bcc0 [40026c70] do_softirq+0x58/0x609504bcd0 [40004280] do_IRQ+0x84/0x989504bcf0 [40002b4c] ret_from_except+0x0/0x189504bdb0 [c150cdc8] c3_dump_wr_buf+0xd8/0x18c [condor3_module]9504bde0 [c150cfe4] c3_dump_reg+0x168/0x2a4 [condor3_module]9504be30 [c146cb28] dbg_dbg_show+0x118/0xafc [condor3_module]9504be80 [bfb71680] debug_read_proc+0x188/0x234 [odin_module]9504beb0 [40092ffc] proc_file_read+0xb8/0x2c89504bef0 [4005d848] vfs_read+0x184/0x1ac9504bf10 [4005dba0] sys_read+0x4c/0x909504bf40 [40002430] ret_from_syscall+0x0/0x48Note that the call back trace was a near match to the defect listed below.RAS logs(see restricted Notes.)

Cause

In a rare condition, any 16G switch with Condor 3 ASIC, with NO encryption on E or EX-port, is exposed to this defect and there is a rare possibility of a panic when supportshow and or supportsave is collected.And this rare condition is having memory parity error on the ASIC encryption block area of the ASIC.This defect is listed as Brocade Defect: DEFECT000586788( For more information ,please check Brocade Solutions SLN 000008356 https://brocadecommunity.force.com/customers/apex/Svc_KB_Home#q=%40sysurihash%3D2RQotti7t4S9FK22 )

Resolution

Upgrade to a release with the fix: Fabric OS 7.3.2 or higherFabric OS 7.4.1c or higherFabric OS 7.4.2 or higherFabric OS 8.0.1 or higher If the problem still exits, please contact your EMC Customer Service representative or the EMC Customer Support Center for technical assistance and upload the switch logs to the service request, so that support staff can check them and provide you with a feedback. Please quote the solution ID.

Support Cases