Kernel call trace

[yanyingchun]

hi ：
当温度升高到51摄氏度时eth0 网速降低为0,当超过52或53摄氏度时网速恢复正常，可以达到接近千兆。
当温度降低到51摄氏度时网速在次降低到0,当降低到50摄氏度以下时，网速又恢复正常。
下面是抓到的一段日志，请帮忙分析一下。这个日子是代表什么问题。
Jul 5 21:49:51 compute kernel: [ 2843.588040] INFO: rcu_preempt self-detected stall on CPU
Jul 5 21:49:51 compute kernel: [ 2843.588175] 0-…: (2941 ticks this GP) idle=e51/140000000000002/0 softirq=317018/317018 fqs=2133
Jul 5 21:49:51 compute kernel: [ 2843.588355] (t=5250 jiffies g=190585 c=190584 q=46262)
Jul 5 21:49:51 compute kernel: [ 2843.588455] Task dump for CPU 0:
Jul 5 21:49:51 compute kernel: [ 2843.588459] ksoftirqd/0 R running task 0 3 2 0x00000002
Jul 5 21:49:51 compute kernel: [ 2843.588465] Call trace:
Jul 5 21:49:51 compute kernel: [ 2843.588477] [] dump_backtrace+0x0/0x198
Jul 5 21:49:51 compute kernel: [ 2843.588482] [] show_stack+0x24/0x30
Jul 5 21:49:51 compute kernel: [ 2843.588491] [] sched_show_task+0xf8/0x148
Jul 5 21:49:51 compute kernel: [ 2843.588495] [] dump_cpu_task+0x48/0x58
Jul 5 21:49:51 compute kernel: [ 2843.588500] [] rcu_dump_cpu_stacks+0xb8/0xec
Jul 5 21:49:51 compute kernel: [ 2843.588505] [] rcu_check_callbacks+0x728/0xa48
Jul 5 21:49:51 compute kernel: [ 2843.588509] [] update_process_times+0x34/0x60
Jul 5 21:49:51 compute kernel: [ 2843.588514] [] tick_sched_handle.isra.5+0x38/0x70
Jul 5 21:49:51 compute kernel: [ 2843.588517] [] tick_sched_timer+0x4c/0x90
Jul 5 21:49:51 compute kernel: [ 2843.588520] [] __hrtimer_run_queues+0xd8/0x360
Jul 5 21:49:51 compute kernel: [ 2843.588523] [] hrtimer_interrupt+0xa8/0x1e0
Jul 5 21:49:51 compute kernel: [ 2843.588529] [] arch_timer_handler_phys+0x38/0x58
Jul 5 21:49:51 compute kernel: [ 2843.588534] [] handle_percpu_devid_irq+0x90/0x2b0
Jul 5 21:49:51 compute kernel: [ 2843.588537] [] generic_handle_irq+0x34/0x50
Jul 5 21:49:51 compute kernel: [ 2843.588540] [] __handle_domain_irq+0x68/0xc0
Jul 5 21:49:51 compute kernel: [ 2843.588543] [] gic_handle_irq+0x5c/0xb0
Jul 5 21:49:51 compute kernel: [ 2843.588545] [] el1_irq+0xe8/0x18c
Jul 5 21:49:51 compute kernel: [ 2843.588551] [] iova_rcache_insert+0xc4/0x290
Jul 5 21:49:51 compute kernel: [ 2843.588554] [] free_iova_fast+0x34/0x58
Jul 5 21:49:51 compute kernel: [ 2843.588557] [] __iommu_dma_free_iova+0x78/0x90
Jul 5 21:49:51 compute kernel: [ 2843.588560] [] __iommu_dma_unmap+0x74/0xa8
Jul 5 21:49:51 compute kernel: [ 2843.588563] [] iommu_dma_unmap_page+0x38/0x48
Jul 5 21:49:51 compute kernel: [ 2843.588568] [] __iommu_unmap_page+0x60/0x160
Jul 5 21:49:51 compute kernel: [ 2843.588573] [] tx_swcx_free+0x54/0xe0
Jul 5 21:49:51 compute kernel: [ 2843.588576] [] eqos_napi_poll_tx+0x2b0/0x4f8
Jul 5 21:49:51 compute kernel: [ 2843.588581] [] net_rx_action+0xf4/0x358
Jul 5 21:49:51 compute kernel: [ 2843.588584] [] __do_softirq+0x13c/0x3b0
Jul 5 21:49:51 compute kernel: [ 2843.588589] [] irq_exit+0xd0/0x118
Jul 5 21:49:51 compute kernel: [ 2843.588592] [] __handle_domain_irq+0x6c/0xc0
Jul 5 21:49:51 compute kernel: [ 2843.588595] [] gic_handle_irq+0x5c/0xb0
Jul 5 21:49:51 compute kernel: [ 2843.588597] [] el1_irq+0xe8/0x18c
Jul 5 21:49:51 compute kernel: [ 2843.588609] [] smpboot_thread_fn+0xec/0x248
Jul 5 21:49:51 compute kernel: [ 2843.588613] [] kthread+0xec/0xf0
Jul 5 21:49:51 compute kernel: [ 2843.588616] [] ret_from_fork+0x10/0x40
Jul 5 21:49:51 compute kernel: [ 2843.600027] INFO: rcu_sched detected stalls on CPUs/tasks:
Jul 5 21:49:51 compute kernel: [ 2843.600156] 0-…: (2944 ticks this GP) idle=e51/140000000000002/0 softirq=317018/317018 fqs=1943
Jul 5 21:49:51 compute kernel: [ 2843.600299] (detected by 1, t=5253 jiffies, g=114818, c=114817, q=4289)
Jul 5 21:49:51 compute kernel: [ 2843.600435] Task dump for CPU 0:
Jul 5 21:49:51 compute kernel: [ 2843.600438] ksoftirqd/0 R running task 0 3 2 0x00000002

[WayneWWW]

Please at least share detail about your board info.

https://forums.developer.nvidia.com/t/debug-tips-when-you-hit-any-kind-of-system-issue/177457/2

[yanyingchun]

xavier iperf降速串口打印和网络框图.docx (240.4 KB)
hi 硬件框图在附件中。软件是基于jetpack4.2

[WayneWWW]

Is it possible for you to share your comment in English? So that other non-Chinese users can read your comment.

[kayccc]

Please try with the latest JetPack to see if improved.