https://kb.vmware.com/s/article/83785
Symptoms
Backtrace of PSOD will be similar to this:
@BlueScreen: PANIC bora/vmkernel/main/dlmalloc.c:4908 - Corruption in dlmalloc
Backtrace for Current CPU - 3:
0x451a99c1bcf0:[0x41801950bb65]PanicvPanicInt@vmkernel#nover+0x439 stack: 0x0, 0x4180198aded8, 0x451a99c1bd98, 0x0, 0x1
0x451a99c1bd90:[0x41801950bd98]Panic_NoSave@vmkernel#nover+0x4d stack: 0x451a99c1bdf0, 0x451a99c1bdb0, 0x451aaa523500, 0x4180198adeb9, 0x132c
0x451a99c1bdf0:[0x418019554523]DLM_free@vmkernel#nover+0x6a8 stack: 0x430f865e2d40, 0x4180195516c1, 0x0, 0x0, 0x0
0x451a99c1be10:[0x4180195516c0]Heap_Free@vmkernel#nover+0x115 stack: 0x0, 0x430f865e2d40, 0x25, 0x40000000, 0x0
0x451a99c1be60:[0x41801943d297]vmk_SpinlockDestroy@vmkernel#nover+0x48 stack: 0x430f85599000, 0x41801a19cfcd, 0x1, 0x41801970f975, 0x41800000ffff
0x451a99c1be80:[0x41801a19cfcc]DeleteFabric@(qfle3f)#<None>+0x29 stack: 0x41800000ffff, 0xbaea85493d3b1, 0x0, 0x0, 0x430f855ad610
0x451a99c1bee0:[0x41801a19d1b9]_ReleaseFabricReference@(qfle3f)#<None>+0x2e stack: 0x430f85599000, 0x430f865cd018, 0x1, 0x41801a19346e, 0x0
0x451a99c1bf10:[0x41801a19346d]DeleteSession@(qfle3f)#<None>+0x4a stack: 0x0, 0x41801952932d, 0x7d0, 0x430f86603870, 0x430f86603870
0x451a99c1bf70:[0x41801a1a88da]ql_fcoe_do_singlethread_work@(qfle3f)#<None>+0x83 stack: 0x25, 0x4180195291cf, 0xfe7000000000025, 0x41801a1a8858, 0x4180195291ca
0x451a99c1bf90:[0x4180195291ce]vmkWorldFunc@vmkernel#nover+0x4f stack: 0x4180195291ca, 0x0, 0x451a8e0a3100, 0x451a99c23000, 0x451a8e0a3100
0x451a99c1bfe0:[0x4180197107da]CpuSched_StartWorld@vmkernel#nover+0x77 stack: 0x0, 0x0, 0x0, 0x0, 0x0
Cause
This issue occurs due to a known bug in the qlfe3f driver on versions prior to 1.1.14
Resolution
This issue is resolved in an updated QLogic's qfle3f driver for both ESXi 6.7 and 7.0:
VMware Compatibility Guide - https://www.vmware.com/resources/compatibility/detail.php?deviceCategory=io&productid=35469&vcl=true
ESXi 6.7 - qfle3f version 1.1.14.2
https://customerconnect.vmware.com/en/group/vmware/downloads/details?downloadGroup=DT-ESXI67-QLOGIC-MRVL-E3-ETHERNET-ISCSI-FCOE-201352&productId=742
ESXi 7.0 - qfle3f version 2.1.14.2
https://customerconnect.vmware.com/en/group/vmware/downloads/details?downloadGroup=DT-ESXI70-QLOGIC-MRVL-E3-ETHERNET-ISCSI-FCOE-301352&productId=974