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TX timeout detected, starting reset task! (Doc ID 2498259.1)

Last updated on MAY 18, 2020

Applies to:

Linux OS - Version Oracle Linux 6.9 with Unbreakable Enterprise Kernel [4.1.12] and later
Oracle VM - Version 3.4.2 to 3.4.2 [Release OVM34]
Information in this document applies to any platform.

Symptoms

Operating system crashes with the following error:

eth2: TX timeout detected, starting reset task!

and stack-traces like the following:

/var/log/messages:

Jan 9 13:46:46 hostname kernel: [3857287.648120] ------------[ cut here ]------------
Jan 9 13:46:46 hostname kernel: [3857287.648129] WARNING: CPU: 3 PID: 0 at net/sched/sch_generic.c:306 dev_watchdog+0x240/0x250()
Jan 9 13:46:46 hostname kernel: [3857287.648131] NETDEV WATCHDOG: eth2 (bnxt_en): transmit queue 2 timed out
Jan 9 13:46:46 hostname kernel: [3857287.648133] Modules linked in: nfsv3 nfs_acl nfs fscache lockd sunrpc grace xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs xen_privcmd vfat fat bnx2fc fcoe libfcoe libfc scsi_transport_fc ipmi_devintf bridge stp llc bonding dm_round_robin dm_multipath pcspkr ses enclosure shpchp sg ipmi_ssif ipmi_si ipmi_msghandler ext3 jbd mbcache raid1 sd_mod mpt3sas scsi_transport_sas raid_class bnxt_en igb dca i2c_algo_bit i2c_core ptp pps_core ahci libahci xhci_pci xhci_hcd crc32c_intel be2iscsi bnx2i cnic uio cxgb4i cxgb4 cxgb3i libcxgbi ipv6 cxgb3 mdio libiscsi_tcp qla4xxx iscsi_boot_sysfs libiscsi scsi_transport_iscsi wmi dm_mirror dm_region_hash dm_log dm_mod
Jan 9 13:46:46 hostname kernel: [3857287.648177] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.1.12-94.4.1.el6uek.x86_64 #2
Jan 9 13:46:46 hostname kernel: [3857287.648178] Hardware name: Oracle Corporation ORACLE SERVER X7-2/ASM, MB, X7-2, BIOS 41017100 08/20/2017
Jan 9 13:46:46 hostname kernel: [3857287.648180] 0000000000000000 ffff8801934c3d38 ffffffff816e01cf ffff8801934c3d88
Jan 9 13:46:46 hostname kernel: [3857287.648182] 0000000000000132 ffff8801934c3d78 ffffffff810868a5 ffff8801872443f8
Jan 9 13:46:46 hostname kernel: [3857287.648184] ffff880187240000 ffff8801872403e0 ffff88018724ed80 000000000000004a
Jan 9 13:46:46 hostname kernel: [3857287.648187] Call Trace:
Jan 9 13:46:46 hostname kernel: [3857287.648188] [] dump_stack+0x63/0x84
Jan 9 13:46:46 hostname kernel: [3857287.648198] [] warn_slowpath_common+0x95/0xe0
Jan 9 13:46:46 hostname kernel: [3857287.648200] [] warn_slowpath_fmt+0x46/0x50
Jan 9 13:46:46 hostname kernel: [3857287.648204] [] ? __netif_schedule+0x67/0x70
Jan 9 13:46:46 hostname kernel: [3857287.648209] [] dev_watchdog+0x240/0x250
Jan 9 13:46:46 hostname kernel: [3857287.648211] [] ? __netdev_watchdog_up+0x80/0x80
Jan 9 13:46:46 hostname kernel: [3857287.648215] [] call_timer_fn+0x47/0x160
Jan 9 13:46:46 hostname kernel: [3857287.648217] [] run_timer_softirq+0x200/0x380
Jan 9 13:46:46 hostname kernel: [3857287.648220] [] ? __netdev_watchdog_up+0x80/0x80
Jan 9 13:46:46 hostname kernel: [3857287.648223] [] __do_softirq+0x10a/0x350
Jan 9 13:46:46 hostname kernel: [3857287.648226] [] irq_exit+0x125/0x130
Jan 9 13:46:46 hostname kernel: [3857287.648231] [] xen_evtchn_do_upcall+0x39/0x50
Jan 9 13:46:46 hostname kernel: [3857287.648235] [] xen_do_hypervisor_callback+0x1e/0x40
Jan 9 13:46:46 hostname kernel: [3857287.648236] [] ? xen_hypercall_sched_op+0xa/0x20
Jan 9 13:46:46 hostname kernel: [3857287.648241] [] ? xen_hypercall_sched_op+0xa/0x20
Jan 9 13:46:46 hostname kernel: [3857287.648243] [] ? xen_safe_halt+0x10/0x20
Jan 9 13:46:46 hostname kernel: [3857287.648246] [] ? default_idle+0x1e/0x100
Jan 9 13:46:46 hostname kernel: [3857287.648249] [] ? arch_cpu_idle+0xf/0x20
Jan 9 13:46:46 hostname kernel: [3857287.648252] [] ? cpuidle_idle_call+0x135/0x1e0
Jan 9 13:46:46 hostname kernel: [3857287.648254] [] ? cpu_idle_loop+0x1f5/0x220
Jan 9 13:46:46 hostname kernel: [3857287.648256] [] ? cpu_startup_entry+0x1b/0x70
Jan 9 13:46:46 hostname kernel: [3857287.648258] [] ? cpu_startup_entry+0x5f/0x70
Jan 9 13:46:46 hostname kernel: [3857287.648261] [] ? cpu_bringup_and_idle+0x2a/0x40
Jan 9 13:46:46 hostname kernel: [3857287.648263] ---[ end trace f6e1d908dd65220a ]---
Jan 9 13:46:46 hostname kernel: [3857287.648267] bnxt_en 0000:18:00.0 eth2: TX timeout detected, starting reset task!
Jan 9 13:46:46 hostname kernel: [3857287.724176] bond0: link status up again after 0 ms for interface eth2

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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