qede driver causes kernel panics under memory pressure

Solution Verified - Updated -

Issue

  • qede driver causes kernel panics under memory pressure
  • Panic in qede_rx_int such as:
    [exception RIP: qede_rx_int+0x4fc]
    RAX: 0000000000000000

 #8 [ffffa6d50cc80e48] qede_poll at ffffffffc04c2c06 [qede]
 #9 [ffffa6d50cc80eb0] __napi_poll at ffffffff9dbc226d
#10 [ffffa6d50cc80ee0] net_rx_action at ffffffff9dbc2763
#11 [ffffa6d50cc80f60] __softirqentry_text_start at ffffffff9e0000d7
#12 [ffffa6d50cc80fb0] irq_exit at ffffffff9d4f17a7
#13 [ffffa6d50cc80fc0] do_IRQ at ffffffff9de01e7f

Environment

  • Red Hat Enterprise Linux 7.9 and earlier
  • Red Hat Enterprise Linux 8.6 and earlier
  • Red Hat Enterprise Linux 9.0 and earlier
  • QLogic (Marvell) FastLinq NIC using qede driver
  • Heavy memory pressure

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