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Panic! UNIX® System Crash Dump Analysis by Kimberley Brown, Chris Drake

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Chapter 36. Life Without A Root Directory

In Chapter 5, we showed you how to intentionally crash your own system. Now let’s analyze the system crash dump files that were generated by the panic.

Get initial information

First, let’s take a look at the strings output.

Hiya...  strings vmcore.0 | more Generic_101318-45 Data fault P+ PRLR v@ ( X,DD XBAD TRAP: type=9 rp=f05d04c4 addr=3 mmu_fsr=3a6 rw=2 fm_flb: Data fault kernel write fault at addr=0x3, pme=0x0 MMU sfsr=3a6: Invalid Address on supv data store at level 3 pid=496, pc=0xf0048918, sp=0xf05d0510, psr=0x404000c7, context=408 g1-g7: 0, 0, ffffff00, 0, f05d09e0, 1, fc45c600 Begin traceback... sp = f05d0510 Called from f009e214, fp=f05d0680, args=f05d06e4 0 f05d06ec 0 0 fc01dd14 Called from f00e4790, ...

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