mmc设备出来后，ext-fs挂载，然后异常 kernel panic。

log如下：

[    4.638695] mmcblk0boot0: mmc0:0001 FN62BB partition 1 4.00 MiB

[    4.655652] mmcblk0boot1: mmc0:0001 FN62BB partition 2 4.00 MiB

[    4.52006

.546[    4.672612] mmcblk0rpmb: mmc0:0001 FN62BB partition 3 512 KiB, chardev (237:0)
540] sprd-sdh

[    4.58120
] sprd-sdhcr10 20600000.sdio: hs400es final timing delay value: 0x30307f45

 /dev/mmcbl[    4.694447]  mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20 p21 p22 p23 p24 p25 p26 p27 p28 p29 p30 p31 p32 p33 p34 p35 p36 p37 p38 p39 p40
k0p29...

[    4.624993] m

[    4.728010] pwm-backlight sprd_backlight: supply power not found, using dummy regulator

[    4.744002] charger-manager charger-manager: No platform data (desc) found

[    4.773461] EXT4-fs (mmcblk0p29): mounted filesystem without journal. Opts: (null)

[    4.789261] VFS: Mounted root (ext4 filesystem) readonly on device 259:13.

[    4.52006

.54
540] sprd-sdh

[    4.807677] devtmpfs: mounted

[    4.58120

] sprd-sdhcr10 20600000.sdio: hs400es final timing delay value: 0x30307f45

 /dev/mmcb
k0p29...

[    4[    4.828604] Freeing unused kernel memory: 1024K
.624993] m

[    4.870028] Run /sbin/init as init process

[    4.885404] Kernel panic - not syncing: Requested init /sbin/init failed (error -2).
[

[ 4   4.52006

.54

540] sprd-sdh

[    4.58120

] sprd-sdhcr10 20600000.sdio: .hs400es final timing delay value: 0x30307f45

 /dev/mmcb
k0p29...
841] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G        W         5.10.97 #1
[    5.032090] random: fast init done
[    5.049654] Hardware name: Generic DT based system
[

540] sprd-sdh

[cktrace: 
[    5.294654] [<c010bd78>] (dump_backtrace) from [<c010c098>] (show_stack+0x20/0x24)
[    5.302175]  r7:00000080 r6:60000093 r5:00000000 r4:c1303854
[    5.307803] [<c010c078>] (show_stack) from [<c0b1b458>] (dump_stack+0xac/0xd4)
[    5.314984] [<c0b1b3ac>] (dump_stack) from [<c0b189a0>] (panic+0x108/0x338)
[    5.321908]  r9:00000000 r8:00000000 r7:00000003 r6:c0de7dc1 r5:00000000 r4:c13a4450
[    5.329609] [<c0b18898>] (panic) from [<c0b1ea58>] (kernel_init+0xa8/0x134)
[    5.336531]  r3:e76c3d09 r2:fffffffe r1:ef6d2f10 r0:c0de7dc1
[    5.342152]  r7:00000000
[    5.344667] [<c0b1e9b0>] (kernel_init) from [<c010013c>] (ret_from_fork+0x14/0x38)
[    5.352192] Exception stack(0xc1939fb0 to 0xc1939ff8)
[    5.357214] 9fa0:                                     00000000 00000000 00000000 00000000
[    5.365349] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    5.373483] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    5.380062]  r5:c0b1e9b0 r4:00000000
[    5.383612] CPU2: stopping
[    5.386291] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G        W         5.10.97 #1
[    5.393643] Hardware name: Generic DT based system
[    5.398404] Backtrace: 
[    5.400832] [<c010bd78>] (dump_backtrace) from [<c010c098>] (show_stack+0x20/0x24)
[    5.408366]  r7:00000080 r6:60000193 r5:00000000 r4:c1303854
[    5.413985] [<c010c078>] (show_stack) from [<c0b1b458>] (dump_stack+0xac/0xd4)
[    5.421168] [<c0b1b3ac>] (dump_stack) from [<c010e06c>] (do_handle_IPI+0x198/0x34c)
[    5.428781]  r9:c108bf54 r8:f080200c r7:c1107044 r6:00000014 r5:00000002 r4:00000004
[    5.436485] [<c010ded4>] (do_handle_IPI) from [<c010e244>] (ipi_handler+0x24/0x30)
[    5.444012]  r7:c1107044 r6:00000014 r5:c18f8200 r4:c182ce40
[    5.449640] [<c010e220>] (ipi_handler) from [<c018cf38>] (handle_percpu_devid_fasteoi_ipi+0x60/0x74)
[    5.458726] [<c018ced8>] (handle_percpu_devid_fasteoi_ipi) from [<c0186888>] (generic_handle_irq+0x38/0x48)
[    5.468415]  r7:00000001 r6:c18f4000 r5:00000000 r4:00000000
[    5.474042] [<c0186850>] (generic_handle_irq) from [<c0186f44>] (__handle_domain_irq+0xa0/0xb0)
[    5.482697] [<c0186ea4>] (__handle_domain_irq) from [<c01014a4>] (gic_handle_irq+0x88/0x94)
[    5.491002]  r7:c1971f10 r6:f0802000 r5:00000004 r4:c1107044
[    5.496628] [<c010141c>] (gic_handle_irq) from [<c0100bb0>] (__irq_svc+0x70/0xb0)
[    5.504066] Exception stack(0xc1971f10 to 0xc1971f58)
[    5.509087] 1f00:                                     0002cd20 ef6b4b44 00000000 c0119e80
[    5.517225] 1f20: ffffe000 ffffe000 00000000 c1106488 00000004 c110651c 00000000 c1971f6c
[    5.525359] 1f40: c1971f70 c1971f60 c0108580 c0108570 60000013 ffffffff
[    5.531936]  r10:00000000 r9:c1970000 r8:00000004 r7:c1971f44 r6:ffffffff r5:60000013
[    5.539721]  r4:c0108570 r3:e76c3d09
[    5.543277] [<c0108544>] (arch_cpu_idle) from [<c0b26004>] (default_idle_call+0x54/0x80)
[    5.551321] [<c0b25fb0>] (default_idle_call) from [<c015cc90>] (do_idle+0x14c/0x2d0)
[    5.559019]  r5:ffffe000 r4:00000000
[    5.562571] [<c015cb44>] (do_idle) from [<c015d100>] (cpu_startup_entry+0x28/0x2c)
[    5.570102]  r10:00000000 r9:410fd034 r8:8000406a r7:c1971ff8 r6:10c0387d r5:00000002
[    5.577884]  r4:00000092
[    5.580399] [<c015d0d8>] (cpu_startup_entry) from [<c010e804>] (secondary_start_kernel+0x11c/0x144)
[    5.589399] [<c010e6e8>] (secondary_start_kernel) from [<80101970>] (0x80101970)
[    5.596750]  r5:00000051 r4:8195c06a
[    5.600297] CPU0: stopping
[    5.602983] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W         5.10.97 #1
[    5.610336] Hardware name: Generic DT based system
[    5.615094] Backtrace: 
[    5.617524] [<c010bd78>] (dump_backtrace) from [<c010c098>] (show_stack+0x20/0x24)
[    5.625051]  r7:00000080 r6:60000193 r5:00000000 r4:c1303854
[    5.630677] [<c010c078>] (show_stack) from [<c0b1b458>] (dump_stack+0xac/0xd4)
[    5.637860] [<c0b1b3ac>] (dump_stack) from [<c010e06c>] (do_handle_IPI+0x198/0x34c)
[    5.645475]  r9:c108bf54 r8:f080200c r7:c1107044 r6:00000014 r5:00000000 r4:00000004
[    5.653177] [<c010ded4>] (do_handle_IPI) from [<c010e244>] (ipi_handler+0x24/0x30)
[    5.660704]  r7:c1107044 r6:00000014 r5:c18f8200 r4:c182ce40
[    5.666331] [<c010e220>] (ipi_handler) from [<c018cf38>] (handle_percpu_devid_fasteoi_ipi+0x60/0x74)
[    5.675418] [<c018ced8>] (handle_percpu_devid_fasteoi_ipi) from [<c0186888>] (generic_handle_irq+0x38/0x48)
[    5.685107]  r7:00000001 r6:c18f4000 r5:00000000 r4:00000000
[    5.690735] [<c0186850>] (generic_handle_irq) from [<c0186f44>] (__handle_domain_irq+0xa0/0xb0)
[    5.699388] [<c0186ea4>] (__handle_domain_irq) from [<c01014a4>] (gic_handle_irq+0x88/0x94)
[    5.707694]  r7:c1101eb0 r6:f0802000 r5:00000004 r4:c1107044
[    5.713328] [<c010141c>] (gic_handle_irq) from [<c0100bb0>] (__irq_svc+0x70/0xb0)
[    5.720759] Exception stack(0xc1101eb0 to 0xc1101ef8)
[    5.725780] 1ea0:                                     00004410 ef68cb44 00000000 c0119e80
[    5.733917] 1ec0: ffffe000 ffffe000 00000000 c1106488 00000001 c110651c c10480e0 c1101f0c
[    5.742051] 1ee0: c1101f10 c1101f00 c0108580 c0108570 60000113 ffffffff
[    5.748635]  r10:c10480e0 r9:c1100000 r8:00000001 r7:c1101ee4 r6:ffffffff r5:60000113
[    5.756414]  r4:c0108570 r3:e76c3d09
[    5.759965] [<c0108544>] (arch_cpu_idle) from [<c0b26004>] (default_idle_call+0x54/0x80)
[    5.768020] [<c0b25fb0>] (default_idle_call) from [<c015cc90>] (do_idle+0x14c/0x2d0)
[    5.775712]  r5:ffffe000 r4:00000000
[    5.779261] [<c015cb44>] (do_idle) from [<c015d100>] (cpu_startup_entry+0x28/0x2c)
[    5.786792]  r10:c10480e0 r9:c13a4000 r8:00000000 r7:c10480e0 r6:c1106480 r5:00000002
[    5.794577]  r4:000000d9
[    5.797091] [<c015d0d8>] (cpu_startup_entry) from [<c0b1e990>] (rest_init+0xc4/0xe4)
[    5.804792] [<c0b1e8cc>] (rest_init) from [<c1000c20>] (arch_call_rest_init+0x18/0x1c)
[    5.812663]  r5:c1106488 r4:c13a4000
[    5.816223] [<c1000c08>] (arch_call_rest_init) from [<c1001074>] (start_kernel+0x3d8/0x47c)
[    5.824528] [<c1000c9c>] (start_kernel) from [<00000000>] (0x0)
[    5.830403] CPU1: stopping
[    5.833089] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G        W         5.10.97 #1
[    5.840440] Hardware name: Generic DT based system
[    5.845200] Backtrace: 
[    5.847629] [<c010bd78>] (dump_backtrace) from [<c010c098>] (show_stack+0x20/0x24)
[    5.855155]  r7:00000080 r6:60000193 r5:00000000 r4:c1303854
[    5.860782] [<c010c078>] (show_stack) from [<c0b1b458>] (dump_stack+0xac/0xd4)
[    5.867966] [<c0b1b3ac>] (dump_stack) from [<c010e06c>] (do_handle_IPI+0x198/0x34c)
[    5.875580]  r9:c108bf54 r8:f080200c r7:c1107044 r6:00000014 r5:00000001 r4:00000004
[    5.883283] [<c010ded4>] (do_handle_IPI) from [<c010e244>] (ipi_handler+0x24/0x30)
[    5.890809]  r7:c1107044 r6:00000014 r5:c18f8200 r4:c182ce40
[    5.896436] [<c010e220>] (ipi_handler) from [<c018cf38>] (handle_percpu_devid_fasteoi_ipi+0x60/0x74)
[    5.905523] [<c018ced8>] (handle_percpu_devid_fasteoi_ipi) from [<c0186888>] (generic_handle_irq+0x38/0x48)
[    5.915214]  r7:00000001 r6:c18f4000 r5:00000000 r4:00000000
[    5.920841] [<c0186850>] (generic_handle_irq) from [<c0186f44>] (__handle_domain_irq+0xa0/0xb0)
[    5.929494] [<c0186ea4>] (__handle_domain_irq) from [<c01014a4>] (gic_handle_irq+0x88/0x94)
[    5.937804]  r7:c1967f10 r6:f0802000 r5:00000004 r4:c1107044
[    5.943425] [<c010141c>] (gic_handle_irq) from [<c0100bb0>] (__irq_svc+0x70/0xb0)
[    5.950864] Exception stack(0xc1967f10 to 0xc1967f58)
[    5.955886] 7f00:                                     0002d40c ef6a0b44 00000000 c0119e80
[    5.964025] 7f20: ffffe000 ffffe000 00000000 c1106488 00000002 c110651c 00000000 c1967f6c
[    5.972156] 7f40: c1967f70 c1967f60 c0108580 c0108570 60000013 ffffffff
[    5.978736]  r10:00000000 r9:c1966000 r8:00000002 r7:c1967f44 r6:ffffffff r5:60000013
[    5.986518]  r4:c0108570 r3:e76c3d09
[    5.990071] [<c0108544>] (arch_cpu_idle) from [<c0b26004>] (default_idle_call+0x54/0x80)
[    5.998117] [<c0b25fb0>] (default_idle_call) from [<c015cc90>] (do_idle+0x14c/0x2d0)
[    6.005817]  r5:ffffe000 r4:00000000
[    6.009367] [<c015cb44>] (do_idle) from [<c015d100>] (cpu_startup_entry+0x28/0x2c)
[    6.016898]  r10:00000000 r9:410fd034 r8:8000406a r7:c1967ff8 r6:10c0387d r5:00000001
[    6.024688]  r4:00000092
[    6.027196] [<c015d0d8>] (cpu_startup_entry) from [<c010e804>] (secondary_start_kernel+0x11c/0x144)
[    6.036199] [<c010e6e8>] (secondary_start_kernel) from [<80101970>] (0x80101970)
[    6.043548]  r5:00000051 r4:8195c06a
[    6.047097] Kernel Offset: disabled
[    6.064193] Rebooting in 5 seconds..
 

请大神帮忙看看。

谢谢。