Petrel2 and Linux
Linus Torvalds
torvalds at linux-foundation.org
Sun Apr 17 12:57:07 PDT 2016
On Sun, Apr 17, 2016 at 12:42 PM, Miika Turkia <miika.turkia at gmail.com> wrote:
>
> Registers:
> rax 0x0 0
> rbx 0x7ffeef3a09d0 140732911978960
> rcx 0x7ffeef3a09d0 140732911978960
> rdx 0x7ffeef3a09d0 140732911978960
>
> SegvAnalysis:
> Segfault happened at: 0x6a8d58 <dc_device_foreach+8>: mov 0x30(%rax),%rax
Hmm.
dc_device_foreach is in libdivecomputer, and is a rather simple function.
I suspect that "device->vtable" is NULL.
> #0 0x00000000006a8d58 in dc_device_foreach ()
> No symbol table info available.
> #1 0x0000000000652b02 in do_libdivecomputer_import ()
> No symbol table info available.
The caller is do_libdivecomputer_import -> do_device_import, but
do_device_import is likely inlined.
I'm not seeing how device->vtable would be NULL, but it's either a
libdivecomputer bug, or it is, as you say, memory corruption.
Linus
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