root@am57xx-evm:~# [  159.424622] NOHZ: local_softirq_pending 88
[  159.424765] NOHZ: local_softirq_pending 88
[  159.703834] NOHZ: local_softirq_pending 40
[  165.176612] NOHZ: local_softirq_pending 80
[  165.176830] NOHZ: local_softirq_pending 80
[  165.177724] NOHZ: local_softirq_pending 80
[  165.178399] NOHZ: local_softirq_pending 80
[  165.179709] NOHZ: local_softirq_pending 80
[  165.180460] NOHZ: local_softirq_pending 80
[  165.181027] NOHZ: local_softirq_pending 80

root@am57xx-evm:~#
root@am57xx-evm:~# [  558.983743] ------------[ cut here ]------------
[  558.988406] WARNING: CPU: 1 PID: 18 at net/sched/sch_generic.c:306 dev_watchdog+0x26c/0x278()
[  558.996977] NETDEV WATCHDOG: eth0 (cpsw): transmit queue 0 timed out
[  559.003357] Modules linked in: bc_example(O) rpmsg_pru rpmsg_rpc rpmsg_proto xhci_plat_hcd xhci_hcd usbcore sd_mod dwc3 udc_core cbc virtio_rpmsg_bus jitterentropy_rng drbg xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo pru_rproc pruss_intc ecb snd_soc_simple_card sha512_generic sha512_arm sha256_generic hmac md5 sha1_generic snd_soc_omap_hdmi_audio sha1_arm_neon sha1_arm pvrsrvkm(O) c_can_platform omap_aes_driver pruss c_can omap_sham can_dev omap_wdt ahci_platform libahci_platform libahci libata scsi_mod ti_vpe ti_sc ti_csc ti_vpdma dwc3_omap rtc_omap extcon_palmas extcon rtc_palmas palmas_pwrbutton snd_soc_tlv320aic3x rtc_ds1307 omap_des omap_rng rng_core debugss_kmodule(O) omap_remoteproc remoteproc virtio virtio_ring sch_fq_codel uio_module_drv(O) uio gdbserverproxy(O) cryptodev(O) cmemk(O)
[  559.076063] CPU: 1 PID: 18 Comm: ktimersoftd/1 Tainted: G           O    4.4.41-rt50-g968d071ce9 #16
[  559.076066] Hardware name: Generic DRA74X (Flattened Device Tree)
[  559.076070] Backtrace:
[  559.076087] [<c0013100>] (dump_backtrace) from [<c00132fc>] (show_stack+0x18/0x1c)
[  559.076097]  r7:c057f7a8 r6:200e0013 r5:00000000 r4:c0950374
[  559.076107] [<c00132e4>] (show_stack) from [<c02bb384>] (dump_stack+0x8c/0xa0)
[  559.076117] [<c02bb2f8>] (dump_stack) from [<c0034794>] (warn_slowpath_common+0x88/0xb8)
[  559.076125]  r7:c057f7a8 r6:00000132 r5:00000009 r4:ee4d1e00
[  559.076134] [<c003470c>] (warn_slowpath_common) from [<c00347fc>] (warn_slowpath_fmt+0x38/0x40)
[  559.076143]  r8:edf44800 r7:00000001 r6:c0922580 r5:edcb4000 r4:c0882a70
[  559.076152] [<c00347c8>] (warn_slowpath_fmt) from [<c057f7a8>] (dev_watchdog+0x26c/0x278)
[  559.076157]  r3:edcb4000 r2:c0882a70
[  559.076160]  r4:00000000
[  559.076168] [<c057f53c>] (dev_watchdog) from [<c0093848>] (call_timer_fn.constprop.3+0x30/0xa0)
[  559.076177]  r10:c057f53c r9:edcb4000 r8:eed2f614 r7:c057f53c r6:00000000 r5:00000000
[  559.076180]  r4:ffffe000
[  559.076187] [<c0093818>] (call_timer_fn.constprop.3) from [<c0093a54>] (run_timer_softirq+0x19c/0x228)
[  559.076193]  r7:00000200 r6:00000000 r5:00000000 r4:eed2f5c0
[  559.076200] [<c00938b8>] (run_timer_softirq) from [<c00384e4>] (do_current_softirqs+0x1b8/0x254)
[  559.076209]  r10:00000001 r9:ee4d1ed0 r8:00000000 r7:04208140 r6:ee4d0000 r5:00000004
[  559.076212]  r4:c091c2fc
[  559.076218] [<c003832c>] (do_current_softirqs) from [<c003883c>] (run_ksoftirqd+0x34/0x64)
[  559.076226]  r10:00000000 r9:00000000 r8:ffffe000 r7:c0934eec r6:00000001 r5:ee460440
[  559.076229]  r4:ffffe000
[  559.076237] [<c0038808>] (run_ksoftirqd) from [<c0053bdc>] (smpboot_thread_fn+0x164/0x2b8)
[  559.076242]  r5:ee460440 r4:ee4d0000
[  559.076249] [<c0053a78>] (smpboot_thread_fn) from [<c00507cc>] (kthread+0xe4/0xfc)
[  559.076258]  r10:00000000 r9:00000000 r8:00000000 r7:c0053a78 r6:ee460440 r5:ee4604c0
[  559.076262]  r4:00000000 r3:ee4c8740
[  559.076269] [<c00506e8>] (kthread) from [<c000fb10>] (ret_from_fork+0x14/0x24)
[  559.076275]  r7:00000000 r6:00000000 r5:c00506e8 r4:ee4604c0
[  559.076278] ---[ end trace 0000000000000002 ]---