MPC8309: u-boot crashed with Bus Fault

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MPC8309: u-boot crashed with Bus Fault

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wangjk
Contributor I

I don't know what a "bus fault" is. Just increasing the frequency of task execution resulted in the problem.Can someone tell me what this "busfault" means?

 

[2023/12/22 11:02:39.464] → Bus Fault @ 0x00001018, fixup 0x00000000
Machine check in kernel mode.
Caused by (from msr): regs 01b76460 Unknown values in msr
**bleep**: 00001018 XER: 20000000 LR: 00019938 REGS: 01b76460 TRAP: 0200 DAR: 00000000
MSR: 00001000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 13148280 01B76658 01B79F6C 5E00E028 00000000 00000003 01EBCA1C 02EF3414
GPR08: FFFFFFFF 0004D14C 00000000 E000051C 00000000 FFFFFFFB 00052000 DFDBEFC9
GPR16: FFFFF94F FF6FFBCB FFFFFF5F F7EFCFFE 42002084 8DFAB1BB 02EF32E3 00000002
GPR24: C0006000 000000FD 0004D11C 00000001 0004D118 FDEFF76E 00052B88 00500D50
Call backtrace:
00019938 00019A64 000312FC 00006E88 00003134 0000936C 00008698
0000437C 00003554
machine check

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yipingwang
NXP TechSupport
NXP TechSupport

If the board is designed with reference to TWR board, than the first suggestion is to check, if the same problem appears, when you run the same code on TWR board.

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