Host encounters PF Exception 14 PSOD during ring buffer changes on ENS enabled uplinks

Products

• VMware vSphere ESXi

Issue/Introduction

• Host has ENS driven physical uplinks utilizing the "nmlx5_core" driver
• Ring buffer changes were being performed utilizing the "nsxdp-cli ens" commands list
• Host encounters a PSOD moments after issuing the change with the PSOD below:

#PF Exception 14 in world #######:HELPER_UPLIN IP 0x420027911a41 addr 0x45216a2e7814
PTEs :0x8000009023: 0x804ef56063: 0x1c0a7b063: 0x0;

Module(s) involved in panic: [nmlx5_core 4.23.6.2-7vmw.803.0.0.24022510 (External)]
cr0=0x8001003d cr2=0x45216a2e7814 cr3=0x5170f000 cr4=0x14616c
FMS=06/55/7 uCode=0x5003707
frame=0x45394f69b880 ip=0x420027911a41 err=0x2 rflags=0x10246
rax=0xc0481500 rbx=0x0 rcx=0x0
rdx=0x4321396bba30 rbp=0x45394f69b990 rsi=0x420027a210b0
rdi=0x45394f69b6a0 r8=0x0 r9=0x431fb8bcf460
r10=0x431fb8400e58 r11=0x431fb8400f10 r12=0x0
r13=0x45216a2e7800 r14=0x0 r15=0x432138940ca0
*PCPU43:#######/HELPER_UPLINK_ASYNC_CALL_QUEUE
PCPU 0: IISSUSSSSSSVVSSSSSSSSUISVSSISSVUUSSSSUUSSSSSVUUUSUUUSUSUIVIVIVIV
PCPU 64: IVIVIVVIIVIVVISSVIVIVISUUSVVSSSSUUUVVSUUIVUSVIIS
Code start: 0x420026800000 VMK uptime: 167:03:34:00.321
0x45394f69b940: [0x420027911a41]nmlx5_en_EnsAllocRxWqes@(nmlx5_core)#<None>+0x159 stack: 0x420026f192a1
0x45394f69b9a0: [0x42002790634c]nm1x5_en_OpenChanne1@(nm1x5_core)#<None>+0xd15 stack: 0x431fb8948f01
0x45394f69baR0:[0x4200279082aa]nm1x5_en_OpenChannels@(nmlx5_core)#<None>+0x1eb stack: 0x0
0x45394f69bd00 : [0x4200279393ac ]nm1x5_en_UplinkStart IOLocked@(nmlx5_core)#<None>+0x1d1 stack: 0x4306d3a41300
0x45394f69bd60 : [0x420027939ada]nm1x5_en_UplinkStart I0@(nmlx5_core)#<None>+0x87 stack: 0x0
0x45394f69bd90: [0x420026c35a0d]UplinkDevConf igAndStart I0@vmkernel#nover+0x286 stack: 0x0
0x45394f69bdf0: [0x420026c39ef3]UplinkDevAttach ToEnsAndEnablePort@vmkernel#nover+0x2ac stack: 0x6d2e6f70662e6d72
0x45394f69beb0: [0x420026c3bac7]UplinkDevCloseAndReopenForNewSettingsAsyncCB@vmkernel#nover+0x15c stack: Oxffffffff
0x45394f69bf30: [0x420026c28536]UplinkAsyncProcessCallsHelperCB@vmkernel#nover+0xa7 stack: 0x430210a01220
0x45394f69bf60 : [0x42002695b75c ]HelperQueueFunc@vmkernel#nover+0x19d stack: 0x430ad3401238
0x45394f69bfe0: [0x420026ed67b2]CpuSched_StartWor ld@vmkernel#nover+Oxbf stack: 0x0
0x45394f69c000: [0x420026944cef ]Debug_IsInitialized@vmkernel#nover+Oxc stack: 0x0
base fs=0x0 gs=0x42004ac00000 Kgs=0x0

 

Environment

8.x

Resolution

Please contact Broadcom support for assistance