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NFS에 rootfs를 구성하고
mount 한 후에 chroot로 진입해서 실행한 결과
이 경우에도 마찬가지로 BootAnimation에서 커널 패닉이 발생합니다.
이렇게 되는걸 보니 아무래도 파일 시스템이 문제가 있다기 보다는
설정되어야 할 디바이스가 안되어 있거나 준비 단계에서 뭔가 부족했나 봅니다.
BootAnimation에서 죽는걸 보면 아무래도 프레임버퍼랑 관련이 클 것 같은 예감이 듭니다.
Frambuffer의 double buffering, page_flipping이 지원되어야 한다고 본 듯 한데,
이런 부분도 확인해봐야 겠네요.
NFS로 했을 ㅤㄸㅒㅤ의 kernel panic은 아래와 같습니다.
----------------------------------------------------
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c1ff0000
[00000000] *pgd=11fd0031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#2] PREEMPT
Modules linked in: ether_cdc_ecm serial msm_hsusb touch_msm fusion rfs(P) xsr_st
l(P) xsr(P)
CPU: 0 Tainted: P D (2.6.25 #2)
PC is at __bug+0x20/0x2c
LR is at vprintk+0x3a4/0x3f8
pc : [<c0022b84>] lr : [<c0047a44>] psr: 40000013
sp : c1c7fef0 ip : c1c7fe48 fp : c1c7fefc
r10: c517fde0 r9 : c1c7e000 r8 : c055ef78
r7 : c5001580 r6 : c517fe58 r5 : c517fde0 r4 : 00000000
r3 : 00000000 r2 : c1c7e000 r1 : c1c7fe48 r0 : 0000002d
Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 00c5387f Table: 11ff0008 DAC: 00000015
Process BootAnimation (pid: 1317, stack limit = 0xc1c7e260)
Stack: (0xc1c7fef0 to 0xc1c80000)
fee0: c1c7ff24 c1c7ff00 c00aa90c c0022b70
ff00: c1c7ff34 00000014 c51b4f00 c360c0e0 c057a8c0 00000000 c1c7ff64 c1c7ff28
ff20: c01c2cec c00aa7ec c0098c98 c0127084 00000014 00000000 00000000 c02d6f3c
ff40: c1c7ff64 c360c0e0 00000014 b000f55c 00000119 c001eba8 c1c7ff84 c1c7ff68
ff60: c01c2d9c c01c2cac c1c7ff8c c51b4f00 00000000 00000001 c1c7ffa4 c1c7ff88
ff80: c01c39e4 c01c2d78 c1c7ffa4 c360c0e0 c0051418 b000f55c 00000000 c1c7ffa8
ffa0: c001ea00 c01c39c8 b000f55c 00000001 00000001 00000001 00000000 ffffe52c
ffc0: b000f55c 00000001 b000f55c 00000119 44e67dbc afe35d78 a9d2760d 00000001
ffe0: a9d45784 45967aa0 b00013bd b000154c 40000010 00000001 00000000 00000000
Backtrace:
[<c0022b64>] (__bug+0x0/0x2c) from [<c00aa90c>] (d_alloc+0x12c/0x1bc)
[<c00aa7e0>] (d_alloc+0x0/0x1bc) from [<c01c2cec>] (sock_attach_fd+0x4c/0xcc)
[<c01c2ca0>] (sock_attach_fd+0x0/0xcc) from [<c01c2d9c>] (sock_map_fd+0x30/0x68)
r8:c001eba8 r7:00000119 r6:b000f55c r5:00000014 r4:c360c0e0
[<c01c2d6c>] (sock_map_fd+0x0/0x68) from [<c01c39e4>] (sys_socket+0x28/0x44)
r5:00000001 r4:00000000
[<c01c39bc>] (sys_socket+0x0/0x44) from [<c001ea00>] (ret_fast_syscall+0x0/0x2c)
r4:b000f55c
Code: e1a01000 e59f000c eb0093c5 e3a03000 (e5833000)
kernel BUG at include/linux/dcache.h:324!
Kernel panic - not syncing: Fatal exception
-----------------------------------------------------------------------
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Re..Kernel Panic 문제 3
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