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Date: Fri, 7 Jun 2013 19:52:33 +0200 From: "Steinar H. Gunderson" <sgunderson@...foot.com> To: Steven Rostedt <rostedt@...dmis.org> Cc: Eric Dumazet <eric.dumazet@...il.com>, linux-kernel@...r.kernel.org, davem@...emloft.net, netdev@...r.kernel.org, Rusty Russell <rusty@...tcorp.com.au>, Pravin B Shelar <pshelar@...ira.com> Subject: Re: NULL pointer dereference when loading the gre module (3.10.0-rc4) On Fri, Jun 07, 2013 at 12:12:23PM -0400, Steven Rostedt wrote: >> Ffffffffa0e76000 u ip_tunnel_init_net [ip_gre] > What do you get if you do an objdump -Dr ip_gre.ko > > And then look for ipgre_init, and then subtract 0xb053 (45139) from its > address. As that is: ffffffffa0e81055 - ffffffffa0e76002, then see if > that object file has anything in that location. pannekake:~> objdump -Dr /lib/modules/3.10.0-rc4/kernel/net/ipv4/ip_gre.ko | grep ipgre_init 0000000000000000 <ipgre_init_net>: 0: 8b 35 00 00 00 00 mov 0x0(%rip),%esi # 6 <ipgre_init_net+0x6> 13: e8 00 00 00 00 callq 18 <ipgre_init_net+0x18> Ie., the symbol doesn't show up in the disassembly (for whatever reason). /* Steinar */ -- Homepage: http://www.sesse.net/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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