主题:SysConfig 中讨论的其他器件
工具/软件:
您好、
1.如何查看当前的 DDR 工作频率以及应使用什么命令来执行此操作;
2.如何修改频率
此致、
Cesar
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工具/软件:
您好、
1.如何查看当前的 DDR 工作频率以及应使用什么命令来执行此操作;
2.如何修改频率
此致、
Cesar
您好、Brijesh、
k3conf 可以看到频率、这是毫无疑问的。
上述 DDR 参数配置存在问题。
此致、
Cesar
尊敬的 Kevin:
它是新的电路板、所有电路板都有复制的可能性。
[43679.616857] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [43679.625656] Mem abort info: [43679.628440] ESR = 0x0000000086000004 [43679.632178] EC = 0x21: IABT (current EL), IL = 32 bits [43679.637478] SET = 0, FnV = 0 [43679.640529] EA = 0, S1PTW = 0 [43679.643661] FSC = 0x04: level 0 translation fault [43679.648529] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008f9935000 [43679.654957] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [43679.661740] Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP [43679.667993] Modules linked in: cdc_ether usbnet r8152 mii rpmsg_ctrl rpmsg_char cdns3 cdns_usb_common spidev display_connector crct10dif_ce pvrsrvkm(O) drm_kms_helper cdns3_ti rti_wdt k3_j72xx_bandgap rtc_ti_k3 ti_k3_r5_remoteproc ti_k3_dsp_remoteproc ti_k3_common mcrc64 sa2ul omap_hwspinlock omap_mailbox spi_omap2_mcspi cfg80211 rfkill ov5640 wave5 v4l2_mem2mem cryptodev(O) fuse drm drm_panel_orientation_quirks backlight ipv6 [43679.705833] CPU: 1 UID: 0 PID: 36400 Comm: kworker/1:2 Tainted: G O 6.12.17-ti #21 [43679.714782] Tainted: [O]=OOT_MODULE [43679.718260] Hardware name: Texas Instruments J722S EVM (DT) [43679.723824] Workqueue: 0x0 (events) [43679.727408] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [43679.734356] pc : 0x0 [43679.736534] lr : 0x0 [43679.738713] sp : ffff80009bed3d40 [43679.742015] x29: 0000000000000000 x28: 0000000000000000 x27: 0000000000000000 [43679.749141] x26: 0000000000000000 x25: ffff0008781485a8 x24: ffff800080cf91b8 [43679.756265] x23: ffff8000814aa018 x22: ffff000878148000 x21: ffff000878148000 [43679.763392] x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000001 [43679.770518] x17: ffff8007fe66f000 x16: ffff800080008000 x15: ffff00087f913240 [43679.777644] x14: 0000000000000000 x13: 000000000000010d x12: 0000000000000000 [43679.784768] x11: 0000000000000000 x10: 00000000000009e0 x9 : ffff80009bed3d20 [43679.791894] x8 : ffff000878148a40 x7 : ffff00087f9132c0 x6 : 0000000000000000 [43679.799020] x5 : 0000000000000002 x4 : 0000000000000002 x3 : 0000000000000204 [43679.806145] x2 : 0000000000000208 x1 : ffff000878148000 x0 : ffff000004b2e300 [43679.813270] Call trace: [43679.815707] 0x0 [43679.817547] Code: ???????? ???????? ???????? ???????? (????????) [43679.823628] ---[ end trace 0000000000000000 ]--- [43679.828234] note: kworker/1:2[36400] exited with irqs disabled [43700.620800] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [43700.626902] rcu: 1-...0: (1 ticks this GP) idle=5f54/1/0x4000000000000000 softirq=4662024/4662024 fqs=1311 [43700.636628] rcu: (detected by 2, t=5252 jiffies, g=9542401, q=107 ncpus=4) [43700.643576] Sending NMI from CPU 2 to CPUs 1: [43710.644400] rcu: rcu_preempt kthread starved for 5130 jiffies! g9542401 f0x0 RCU_GP_DOING_FQS(6) ->state=0x0 ->cpu=0 [43710.659245] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [43710.668357] rcu: RCU grace-period kthread stack dump: [43710.673394] task:rcu_preempt state:R running task stack:0 pid:16 tgid:16 ppid:2 flags:0x0000000a [43710.684251] Call trace: [43710.686687] __switch_to+0xe4/0x140 [43710.690177] __smp_call_single_queue+0x60/0x70 [43710.694613] irq_work_queue_on+0x74/0xcc [43710.698531] rcu_watching_snap_recheck+0x330/0x334 [43710.703313] force_qs_rnp+0x1d4/0x344 [43710.706966] rcu_gp_fqs_loop+0x348/0x4c8 [43710.710879] rcu_gp_kthread+0x134/0x160 [43710.714707] kthread+0x110/0x114 [43710.717929] ret_from_fork+0x10/0x20 [43710.721496] rcu: Stack dump where RCU GP kthread last ran: [43710.726965] Sending NMI from CPU 2 to CPUs 0:
此致、
Cesar