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Re: Huge pages and gdb
Erez Zilber <erezzi.list@gmail.com> writes:
> My application (running on RHEL 6) calls mmap() to map huge pages.
> After it crashed, I opened gdb with the core file and tried to take a
> look in the huge-pages buffer that was mmapped. I got the following
> error:
>
> gdb) p pool->mem
> $2 = 0x7f3201400000 <Address 0x7f3201400000 out of bounds>
> (gdb) p pool->mem[0]
> Cannot access memory at address 0x7f3201400000
If gdb cannot access the memory then it is not part of the core file.
Please check with "info target" whether one of the segments cover the
address range. If not, then either the address really is invalid, or it
is an issue with the core producer and gdb cannot do anything about
that.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
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