#1292 linear dump not works in my case

open
nobody
Debugger (99)
5
2012-10-15
2012-05-11
Anonymous
No

hi. currently debugging my driver for windows using bochs debugger. breakpointing with magic breakpoint. trying to dump stack with linear dump. debugger says 'bx_dbg_read_linear: physical address not available for linear 0xfffff880009c2000'. rsp==0xFFFFF880009C1AF0. so, i can't see linear dump because next-after-rsp memory page is not available. can you make bochs debugger to display available bytes (in my case it's requested 0xFFFFF880009C1AF0...0xfffff880009c2000) and error message.

Discussion

  • Stanislav Shwartsman

    Could you explain which Bochs command you use for dump, which output you get and which output you expect to receive?

    Thanks,
    Stanislav

     
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    Anonymous - 2012-05-11

    rsp==0xFFFFF880009C1AF0 (memory for stack is allocated from 0xFFFFF880009C0000 to 0xFFFFF880009C2000, after 0xFFFFF880009C2000 memory is not allocated, so page fault will occur in case of using this page). i'm pressing F7 (linear memory dump), entering current rsp value (0xFFFFF880009C1AF0) and pressing enter. i wanna see memory from 0xFFFFF880009C1AF0 to 0xFFFFF880009C2000. but bochs see, that it can't display 4096 bytes, because 0xFFFFF880009C2000 is not available, and displays nothing (only error message).

     

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