Re: [Crash-utility] [PATCH] ARM: fix segfault in page table read

I have an ARM crash dump where the page tables have been corrupted. crash segfaults while reading it because of a stack overflow due to recursion in the page table read core: readmem: e2efcde0, KVADDR, "module unwind table", 24, (ROE), 8600bc0> addr: e2efcde0 paddr: 22efcde0 cnt: 24 <readmem: bf006550, KVADDR, "module unwind index table", 8, (ROE), 9ccab28> <readmem: c0004000, KVADDR, "pgd page", 16384, (FOE), 91c18e8> addr: c0004000 paddr: 4000 cnt: 4096 addr: c0005000 paddr: 5000 cnt: 4096 addr: c0006000 paddr: 6000 cnt: 4096 addr: c0007000 paddr: 7000 cnt: 4096 <readmem: ed2d3000, KVADDR, "page table", 4096, (FOE), 91c58f0> <readmem: ed2d3000, KVADDR, "page table", 4096, (FOE), 91c58f0> <readmem: ed2d3000, KVADDR, "page table", 4096, (FOE), 91c58f0> <readmem: ed2d3000, KVADDR, "page table", 4096, (FOE), 91c58f0> <readmem: ed2d3000, KVADDR, "page table", 4096, (FOE), 91c58f0> <readmem: ed2d3000, KVADDR, "page table", 4096, (FOE), 91c58f0> etc till segfault The problem appears to be that the ARM code is attempting to PTOV() the physical address found in the page table and readmem() it as a KVADDR instead of just directly reading it as a PHYSADDR.