NETDEV WATCHDOG: eth0: transmit timed out results in kernel panic.

Solution Verified - Updated -

Issue

  • Kernel Panic with similar data in /var/log/messages
NETDEV WATCHDOG: eth0: transmit timed out
bnx2 0000:04:00.0: eth0: DEBUG: intr_sem[0] PCI_CMD[00100446]
bnx2 0000:04:00.0: eth0: DEBUG: PCI_PM[19002008] PCI_MISC_CFG[92000088]
bnx2 0000:04:00.0: eth0: DEBUG: EMAC_TX_STATUS[00000008] EMAC_RX_STATUS[00000000]
bnx2 0000:04:00.0: eth0: DEBUG: RPM_MGMT_PKT_CTRL[40000088]
bnx2 0000:04:00.0: eth0: DEBUG: HC_STATS_INTERRUPT_STATUS[01fa0005]
bnx2 0000:04:00.0: eth0: DEBUG: PBA[00000000]
bnx2 0000:04:00.0: eth0: <--- start MCP states dump --->
bnx2 0000:04:00.0: eth0: DEBUG: MCP_STATE_P0[0007610e] MCP_STATE_P1[0003600e]
bnx2 0000:04:00.0: eth0: DEBUG: MCP mode[0000b880] state[80000000] evt_mask[00000500]
bnx2 0000:04:00.0: eth0: DEBUG: pc[0800caa8] pc[080090b4] instr[34420085]
bnx2 0000:04:00.0: eth0: DEBUG: shmem states:
bnx2 0000:04:00.0: eth0: DEBUG: drv_mb[01030003] fw_mb[00000003] link_status[8000006f]  drv_pulse_mb[00000195]
bnx2 0000:04:00.0: eth0: DEBUG: dev_info_signature[44564903] reset_type[01005254] condition[0007610e]
bnx2 0000:04:00.0: eth0: DEBUG: 000003cc: 44444444 44444444 44444444 00000a3c
bnx2 0000:04:00.0: eth0: DEBUG: 000003dc: 0ffeffff 0000ffff ffffffff ffffffff
bnx2 0000:04:00.0: eth0: DEBUG: 000003ec: 00000000 00000000 00000000 00000002
bnx2 0000:04:00.0: eth0: DEBUG: 0x3fc[0000ffff]
bnx2 0000:04:00.0: eth0: <--- end MCP states dump --->

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Broadcom 5950 Ethernet

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