linux-kernel - net/core/rtnetlink.c:1234:1: internal compiler error: output

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Date:   Sun, 30 Apr 2017 04:16:24 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Phil Sutter <phil@....cc>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: net/core/rtnetlink.c:1234:1: internal compiler error:
 output_operand: unrecognized address

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0060e79a1f5231940ef38e6621745c0c808065cb
commit: 9af15c38254d81c9991eba89335ca7c537d7f2c3 device: Implement a bus agnostic dev_num_vf routine
date:   3 months ago
config: cris-artpec_3_defconfig (attached as .config)
compiler: cris-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 9af15c38254d81c9991eba89335ca7c537d7f2c3
        # save the attached .config to linux build tree
        make.cross ARCH=cris 

All errors (new ones prefixed by >>):

   (post_inc:SI (reg:SI 15 acr))
   net/core/rtnetlink.c: In function 'rtnl_fill_vfinfo':
>> net/core/rtnetlink.c:1234:1: internal compiler error: output_operand: unrecognized address
    }
    ^
   0x6f7b1f output_operand_lossage(char const*, ...)
   	/c/gcc/gcc/final.c:3409
   0x6f7dc3 output_address(machine_mode, rtx_def*)
   	/c/gcc/gcc/final.c:3859
   0x6f7d1c output_operand(rtx_def*, int)
   	/c/gcc/gcc/final.c:3843
   0x6f81df output_asm_insn(char const*, rtx_def**)
   	/c/gcc/gcc/final.c:3759
   0x6f9c8c output_asm_insn(char const*, rtx_def**)
   	/c/gcc/gcc/final.c:3010
   0x6f9c8c final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
   	/c/gcc/gcc/final.c:3015
   0x6fa189 final(rtx_insn*, _IO_FILE*, int)
   	/c/gcc/gcc/final.c:2045
   0x6fa697 rest_of_handle_final
   	/c/gcc/gcc/final.c:4441
   0x6fa697 execute
   	/c/gcc/gcc/final.c:4516
   Please submit a full bug report,
   with preprocessed source if appropriate.
   Please include the complete backtrace with any bug report.
   See <http://gcc.gnu.org/bugs.html> for instructions.
   {standard input}: Assembler messages:
   {standard input}:1625: Warning: end of file not at end of a line; newline inserted
   {standard input}:1626: Error: Illegal operands

vim +1234 net/core/rtnetlink.c

79aab093 Moshe Shemesh        2016-09-22  1228  
79aab093 Moshe Shemesh        2016-09-22  1229  nla_put_vf_failure:
79aab093 Moshe Shemesh        2016-09-22  1230  	nla_nest_cancel(skb, vf);
79aab093 Moshe Shemesh        2016-09-22  1231  nla_put_vfinfo_failure:
79aab093 Moshe Shemesh        2016-09-22  1232  	nla_nest_cancel(skb, vfinfo);
79aab093 Moshe Shemesh        2016-09-22  1233  	return -EMSGSIZE;
b22b941b Hannes Frederic Sowa 2015-11-17 @1234  }
b22b941b Hannes Frederic Sowa 2015-11-17  1235  
b22b941b Hannes Frederic Sowa 2015-11-17  1236  static int rtnl_fill_link_ifmap(struct sk_buff *skb, struct net_device *dev)
b22b941b Hannes Frederic Sowa 2015-11-17  1237  {

:::::: The code at line 1234 was first introduced by commit
:::::: b22b941b2c253a20e1d000c671594c4f3f0a3858 rtnetlink: fix frame size warning in rtnl_fill_ifinfo

:::::: TO: Hannes Frederic Sowa <hannes@...essinduktion.org>
:::::: CC: David S. Miller <davem@...emloft.net>

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