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[维修案例] 创维8S51/510E/510F灰屏不开机

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发表于 2022-5-19 01:02:04 | 显示全部楼层 |阅读模式

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8S51/510E/510F灰屏不开机

[    1.782458]  Kernel_Level test
[    1.786616] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    1.794017] Backtrace:
[    1.796264] [<c001b974>] (dump_backtrace+0x0/0x100) from [<c053fd38>] (dump_stack+0x20/0x24)
[    1.803822]  r6:00008000 r5:c7d29000 r4:c0769bb8 r3:00000000
[    1.808970] [<c053fd18>] (dump_stack+0x0/0x24) from [<c053fdc4>] (panic+0x88/0x1c8)
[    1.815842] [<c053fd3c>] (panic+0x0/0x1c8) from [<c06df030>] (mount_block_root+0x128/0x168)
[    1.823322]  r3:c7baaa50 r2:c7a85e78 r1:c7a85f78 r0:c064f244
[    1.828460]  r7:c070747c
[    1.830752] [<c06def08>] (mount_block_root+0x0/0x168) from [<c06df250>] (prepare_namespace+0x94/0x1d0)
[    1.839083]  r8:00000000 r7:00000013 r6:c004588c r5:c070748c r4:c070747c
[    1.845191] [<c06df1bc>] (prepare_namespace+0x0/0x1d0) from [<c06dec14>] (kernel_init+0xdc/0x10c)
[    1.853136]  r5:c06deb38 r4:c7a84000
[    1.856393] [<c06deb38>] (kernel_init+0x0/0x10c) from [<c004588c>] (do_exit+0x0/0x394)
[    1.863485]  r4:00000000 r3:00000000
[    1.866719] CPU2: stopping
[    1.869142] Backtrace:
[    1.871360] [<c001b974>] (dump_backtrace+0x0/0x100) from [<c053fd38>] (dump_stack+0x20/0x24)
[    1.878901]  r6:00000002 r5:00000006 r4:00000002 r3:00000000
[    1.884032] [<c053fd18>] (dump_stack+0x0/0x24) from [<c001cea8>] (ipi_cpu_stop+0x40/0x70)
[    1.891350] [<c001ce68>] (ipi_cpu_stop+0x0/0x70) from [<c0008590>] (do_IPI+0xcc/0x124)
[    1.898426]  r4:00000000 r3:00000004
[    1.901663] [<c00084c4>] (do_IPI+0x0/0x124) from [<c05438fc>] (__irq_svc+0x3c/0xdc)
[    1.908508] Exception stack(0xc7acbf78 to 0xc7acbfc0)
[    1.913027] bf60:                                                       00000003 00000001
[    1.920343] bf80: c7acbfc0 00000000 00000004 c0739ef8 10c03c7d c0767d58 2020406a 410fc073
[    1.927659] bfa0: 00000000 c7acbfcc c7acbfc0 c7acbfc0 c0018420 c0018424 60000013 ffffffff
[    1.934968]  r7:c7acbfac r6:fc002000 r5:60000013 r4:c0018424
[    1.940097] [<c00183ec>] (default_idle+0x0/0x3c) from [<c0018944>] (cpu_idle+0x8c/0xf8)
[    1.947260] [<c00188b8>] (cpu_idle+0x0/0xf8) from [<c053d2f4>] (secondary_start_kernel+0x1f8/0x22c)
[    1.955354] [<c053d0fc>] (secondary_start_kernel+0x0/0x22c) from [<2073c8d4>] (0x2073c8d4)
[    1.962740]  r5:00000015 r4:27ccc06a
[    1.965969] CPU1: stopping
[    1.968391] Backtrace:
[    1.970609] [<c001b974>] (dump_backtrace+0x0/0x100) from [<c053fd38>] (dump_stack+0x20/0x24)
[    1.978151]  r6:00000001 r5:00000006 r4:00000001 r3:00000000
[    1.983282] [<c053fd18>] (dump_stack+0x0/0x24) from [<c001cea8>] (ipi_cpu_stop+0x40/0x70)
[    1.990599] [<c001ce68>] (ipi_cpu_stop+0x0/0x70) from [<c0008590>] (do_IPI+0xcc/0x124)
[    1.997674]  r4:00000000 r3:00000004
[    2.000910] [<c00084c4>] (do_IPI+0x0/0x124) from [<c05438fc>] (__irq_svc+0x3c/0xdc)
[    2.007755] Exception stack(0xc7abbf78 to 0xc7abbfc0)
[    2.012273] bf60:                                                       00000007 00000001
[    2.019589] bf80: c7abbfc0 00000000 00000002 c0739ef8 10c03c7d c0767d58 2020406a 410fc073
[    2.026905] bfa0: 00000000 c7abbfcc c7abbfc0 c7abbfc0 c0018420 c0018424 60000013 ffffffff
[    2.034213]  r7:c7abbfac r6:fc002000 r5:60000013 r4:c0018424
[    2.039343] [<c00183ec>] (default_idle+0x0/0x3c) from [<c0018944>] (cpu_idle+0x8c/0xf8)
[    2.046505] [<c00188b8>] (cpu_idle+0x0/0xf8) from [<c053d2f4>] (secondary_start_kernel+0x1f8/0x22c)
[    2.054597] [<c053d0fc>] (secondary_start_kernel+0x0/0x22c) from [<2073c8d4>] (0x2073c8d4)
[    2.061983]  r5:00000015 r4:27cbc06a
[    2.065213] CPU0: stopping
[    2.067636] Backtrace:
[    2.069853] [<c001b974>] (dump_backtrace+0x0/0x100) from [<c053fd38>] (dump_stack+0x20/0x24)
[    2.077394]  r6:00000000 r5:00000006 r4:00000000 r3:00000000
[    2.082526] [<c053fd18>] (dump_stack+0x0/0x24) from [<c001cea8>] (ipi_cpu_stop+0x40/0x70)
[    2.089843] [<c001ce68>] (ipi_cpu_stop+0x0/0x70) from [<c0008590>] (do_IPI+0xcc/0x124)
[    2.096918]  r4:00000000 r3:00000004
[    2.100154] [<c00084c4>] (do_IPI+0x0/0x124) from [<c05438fc>] (__irq_svc+0x3c/0xdc)
[    2.107000] Exception stack(0xc0729f50 to 0xc0729f98)
[    2.111520] 9f40:                                     0000000f 00000001 c0729f98 00000000
[    2.118835] 9f60: 00000002 c072a44c c0707a80 c0730a54 2020406a 410fc073 00000000 c0729fa4
[    2.126150] 9f80: c0729f98 c0729f98 c0018420 c0018424 60000013 ffffffff
[    2.132062]  r7:c0729f84 r6:fc002000 r5:60000013 r4:c0018424
[    2.137194] [<c00183ec>] (default_idle+0x0/0x3c) from [<c0018944>] (cpu_idle+0x8c/0xf8)
[    2.144355] [<c00188b8>] (cpu_idle+0x0/0xf8) from [<c053a260>] (rest_init+0xb0/0xd0)
[    2.151284] [<c053a1b0>] (rest_init+0x0/0xd0) from [<c06dea3c>] (start_kernel+0x38c/0x3f8)
[    2.158671]  r4:c072ac90 r3:00000001
[    2.161906] [<c06de6b0>] (start_kernel+0x0/0x3f8) from [<2020804c>] (0x2020804c)
[    2.168516]  r4:10c53c7d
上述打印信息为灰屏不开机信息,而且是不断循环的打印。
出现上述打印信息时,请更换U0M9/EMMC芯片然后再升级主程序即可解决上述问题。
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