Alasan panik kernel? Tidak dapat menangani permintaan paging kernel di alamat virtual ebfeb0a0

Ini menyangkut imx6q, desain perangkat keras kustom 2GB Alliance Memory (4Gb x 4, 4 RAM) yang paling mirip dengan nitrogen6_max. Perangkat keras ini stabil dan dapat menjalankan Yocto tanpa kegagalan.

Tapi sekarang tidak stabil dan panik panik secara acak. Di sini saya telah melampirkan log kernel. Apakah ini masalah memori? Ketika saya melakukan decoding program counter menggunakan addr2line itu menunjukkan >> Siapkan_to wait_event, netlink_compare_arg_init << dalam berbagai kesempatan. Ada ide tentang ini?

Log Kernel

Unable to handle kernel paging request at virtual address ebfeb0a0
pgd = b3fd4fff
[ebfeb0a0] *pgd=187e2722(bad)
Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
Modules linked in: brcmfmac brcmutil cfg80211 usb_f_ecm g_ether usb_f_rndis libcomposite u_ether videobuf2_dma_sg ov5642_camera ov5640_camera_mipi_int mxc_v4l2_capture ipu_bg_overlay_sdc atmel_mxt_ts ipu_still ipu_prp_enc ipu_csi_enc tc358743_h2c_bridge ov5640_subdev_camera goodix ipu_fg_overlay_sdc tsc2004 ili210x ft5x06_ts egalax_ts v4l2_int_device tw6869 videobuf2_dma_contig videobuf2_memops gpio_keys galcore(O)
CPU: 1 PID: 104 Comm: cryptomgr_test Tainted: G           O    4.1.15-1.0.0_ga+yocto+g76c24a0 #8
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
task: ce564600 ti: fedf4000 task.ti: ce5be000
PC is at 0xebfeb0a0
LR is at printk+0x90/0xac
pc : [<ebfeb0a0>]    lr : [<8085a290>]    psr: 20030193
sp : fedf6170  ip : fedf6170  fp : fedf6194
r10: 00000001  r9 : fedf62c0  r8 : ebfeb0a0
r7 : a9277bff  r6 : 80a8c8f8  r5 : 80d02508  r4 : ebfeb0a0
r3 : fedf6000  r2 : 5aede52e  r1 : fedf619c  r0 : 80a8c8f8
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 5e7cc04a  DAC: 00000015
Process cryptomgr_test (pid: 104, stack limit = 0xce5be210)
Stack: (0xfedf6170 to 0xce5c0000)
Backtrace: invalid frame pointer 0xfedf6194
Code: bad PC value
---[ end trace 2854d5881dd1d8c6 ]---
Fixing recursive fault but reboot is needed!
INFO: rcu_preempt detected stalls on CPUs/tasks:
        3: (6 GPs behind) idle=c63/140000000000000/0 softirq=12514/12514 fqs=1387
        (detected by 1, t=2102 jiffies, g=9717, c=9716, q=38)
Task dump for CPU 3:
swapper/3       R running      0     0      1 0x00000002
Backtrace:
[<8085c670>] (__schedule) from [<8085cbc4>] (schedule+0x44/0x9c)
 r9:ce0a9fa8 r8:00000001 r7:d0f23ed0 r6:809028c0 r5:80d025e8 r4:ce0a8000
[<8085cb80>] (schedule) from [<8085cfa8>] (schedule_preempt_disabled+0x18/0x24)
 r5:80d025e8 r4:ce0a8000
[<8085cf90>] (schedule_preempt_disabled) from [<801681ac>] (cpu_startup_entry+0x134/0x330)
[<80168078>] (cpu_startup_entry) from [<8010e348>] (secondary_start_kernel+0x150/0x15c)
 r7:80d51308
[<8010e1f8>] (secondary_start_kernel) from [<1010154c>] (0x1010154c)
 r5:00000015 r4:5e08806a
Unable to handle kernel paging request at virtual address ebfeb0a0
pgd = b3fd4fff
[ebfeb0a0] *pgd=187e2722(bad)
Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
Modules linked in: brcmfmac brcmutil cfg80211 usb_f_ecm g_ether usb_f_rndis libcomposite u_ether videobuf2_dma_sg ov5642_camera ov5640_camera_mipi_int mxc_v4l2_capture ipu_bg_overlay_sdc atmel_mxt_ts ipu_still ipu_prp_enc ipu_csi_enc tc358743_h2c_bridge ov5640_subdev_camera goodix ipu_fg_overlay_sdc tsc2004 ili210x ft5x06_ts egalax_ts v4l2_int_device tw6869 videobuf2_dma_contig videobuf2_memops gpio_keys galcore(O)
CPU: 1 PID: 104 Comm: cryptomgr_test Tainted: G           O    4.1.15-1.0.0_ga+yocto+g76c24a0 #8
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
task: ce564600 ti: fedf4000 task.ti: ce5be000
PC is at 0xebfeb0a0
LR is at printk+0x90/0xac
pc : [<ebfeb0a0>]    lr : [<8085a290>]    psr: 20030193
sp : fedf6170  ip : fedf6170  fp : fedf6194
r10: 00000001  r9 : fedf62c0  r8 : ebfeb0a0
r7 : a9277bff  r6 : 80a8c8f8  r5 : 80d02508  r4 : ebfeb0a0
r3 : fedf6000  r2 : 5aede52e  r1 : fedf619c  r0 : 80a8c8f8
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 5e7cc04a  DAC: 00000015
Process cryptomgr_test (pid: 104, stack limit = 0xce5be210)
Stack: (0xfedf6170 to 0xce5c0000)
Backtrace: invalid frame pointer 0xfedf6194
Code: bad PC value
---[ end trace 2854d5881dd1d8c6 ]---
Fixing recursive fault but reboot is needed!
INFO: rcu_preempt detected stalls on CPUs/tasks:
        3: (6 GPs behind) idle=c63/140000000000000/0 softirq=12514/12514 fqs=1387
        (detected by 1, t=2102 jiffies, g=9717, c=9716, q=38)
Task dump for CPU 3:
swapper/3       R running      0     0      1 0x00000002
Backtrace:
[<8085c670>] (__schedule) from [<8085cbc4>] (schedule+0x44/0x9c)
 r9:ce0a9fa8 r8:00000001 r7:d0f23ed0 r6:809028c0 r5:80d025e8 r4:ce0a8000
[<8085cb80>] (schedule) from [<8085cfa8>] (schedule_preempt_disabled+0x18/0x24)
 r5:80d025e8 r4:ce0a8000
[<8085cf90>] (schedule_preempt_disabled) from [<801681ac>] (cpu_startup_entry+0x134/0x330)
[<80168078>] (cpu_startup_entry) from [<8010e348>] (secondary_start_kernel+0x150/0x15c)
 r7:80d51308
[<8010e1f8>] (secondary_start_kernel) from [<1010154c>] (0x1010154c)

r5: 00000015 r4: 5e08806a

Salam, Kulunu.