Hi Tycho, [auto build test WARNING on net/master] [also build test WARNING on v4.11-rc5 next-20170405] [cannot apply to tip/x86/core] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Tycho-Andersen/ebpf-verify-the-output-of-the-JIT/20170406-004746 config: x86_64-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): arch/x86/net/bpf_jit_comp.c: In function 'do_jit': >> arch/x86/net/bpf_jit_comp.c:1098:1: warning: the frame size of 13024 bytes >> is larger than 8192 bytes [-Wframe-larger-than=] } ^ vim +1098 arch/x86/net/bpf_jit_comp.c 9383191d Daniel Borkmann 2017-02-16 1082 pr_err("bpf_jit: fatal insn size error\n"); e0ee9c12 Alexei Starovoitov 2014-10-10 1083 return -EFAULT; e0ee9c12 Alexei Starovoitov 2014-10-10 1084 } e0ee9c12 Alexei Starovoitov 2014-10-10 1085 0a14842f Eric Dumazet 2011-04-20 1086 if (image) { 0a14842f Eric Dumazet 2011-04-20 1087 if (unlikely(proglen + ilen > oldproglen)) { 9383191d Daniel Borkmann 2017-02-16 1088 pr_err("bpf_jit: fatal error\n"); f3c2af7b Alexei Starovoitov 2014-05-13 1089 return -EFAULT; 0a14842f Eric Dumazet 2011-04-20 1090 } 0a14842f Eric Dumazet 2011-04-20 1091 memcpy(image + proglen, temp, ilen); 0a14842f Eric Dumazet 2011-04-20 1092 } 0a14842f Eric Dumazet 2011-04-20 1093 proglen += ilen; 0a14842f Eric Dumazet 2011-04-20 1094 addrs[i] = proglen; 0a14842f Eric Dumazet 2011-04-20 1095 prog = temp; 0a14842f Eric Dumazet 2011-04-20 1096 } f3c2af7b Alexei Starovoitov 2014-05-13 1097 return proglen; f3c2af7b Alexei Starovoitov 2014-05-13 @1098 } f3c2af7b Alexei Starovoitov 2014-05-13 1099 19d23b2d Tycho Andersen 2017-04-04 1100 #ifdef CONFIG_EBPF_JIT_HASH_OUTPUT 19d23b2d Tycho Andersen 2017-04-04 1101 static struct shash_desc *bpf_alloc_hash_desc(void) 19d23b2d Tycho Andersen 2017-04-04 1102 { 19d23b2d Tycho Andersen 2017-04-04 1103 struct shash_desc *hash; 19d23b2d Tycho Andersen 2017-04-04 1104 int sz = sizeof(struct shash_desc) + crypto_shash_descsize(tfm); 19d23b2d Tycho Andersen 2017-04-04 1105 19d23b2d Tycho Andersen 2017-04-04 1106 hash = kzalloc(sz, GFP_KERNEL); :::::: The code at line 1098 was first introduced by commit :::::: f3c2af7ba17a83809806880062c9ad541744fb95 net: filter: x86: split bpf_jit_compile() :::::: TO: Alexei Starovoitov <a...@plumgrid.com> :::::: CC: David S. Miller <da...@davemloft.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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