Re: [PATCH] fix for kallsyms module symbol resolution problem
Rusty Russell (rusty@rustcorp.com.au)
Mon, 30 Jun 2003 12:06:08 +1000
In message <1056770789.1825.200.camel@mulgrave> you write:
> In lots of KALLSYMS symbol resolution in modules, I've noticed the
> appearance of symbols with no names:
>
> Jun 27 20:55:26 raven kernel: [<10131440>] schedule_timeout+0x78/0xdc
> Jun 27 20:55:26 raven kernel: [<000f8240>] +0x4e0/0x598 [sunrpc]
> Jun 27 20:55:26 raven kernel: [<0014504c>] +0x150/0x43c [nfsd]
> Jun 27 20:55:26 raven kernel: [<10109c5c>] ret_from_kernel_thread+0x1c/0x24
>
> The problem seems to be that get_ksymbol doesn't eliminate empty symbol
> names when it does resolution. The attached patch should fix this.
Please test, because that's only one problem.
The other is that the module_text_address() returns true if the value
is within the module, *not* just if it's within a function. So you
can get some noise there, too, on archs which don't do real
backtracing.
Thanks,
Rusty.
--
Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
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