Messages in this thread | | | Date | Fri, 24 Feb 2017 17:27:02 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | perf test 'instruction decoder' failing |
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Hi Adrian,
This test is failing, I'll try to recheck this and bisect it, but since I haven't had the time so far and I saw it since yesterday (at least), lemme document it here:
[root@jouet ~]# perf test -v 57 57: x86 instruction decoder - new instructions : --- start --- test child forked, pid 18975 Decoded ok: 0f 31 rdtsc Decoded ok: 0f 1b 80 78 56 34 12 bndstx %bnd0,0x12345678(%eax) <SNIP tons of OKays> Decoded ok: 0f 1b 85 78 56 34 12 bndstx %bnd0,0x12345678(%ebp) Decoded ok: 0f 1b 84 01 78 56 34 12 bndstx %bnd0,0x12345678(%ecx,%eax,1) Decoded ok: 0f 1b 84 05 78 56 34 12 bndstx %bnd0,0x12345678(%ebp,%eax,1) Decoded ok: 0f 1b 84 08 78 56 34 12 bndstx %bnd0,0x12345678(%eax,%ecx,1) Decoded ok: f2 e8 fc ff ff ff bnd call fce <main+0xfce> Failed to decode 'rel' value (0xfffffffc vs expected 0): f2 ff 10 bnd call *(%eax) Failed to decode 'rel' value (0xfffffffc vs expected 0): f2 c3 bnd ret Decoded ok: f2 e9 fc ff ff ff bnd jmp fd9 <main+0xfd9> Decoded ok: f2 e9 fc ff ff ff bnd jmp fdf <main+0xfdf> Failed to decode 'rel' value (0xfffffffc vs expected 0): f2 ff 21 bnd jmp *(%ecx) Decoded ok: f2 0f 85 fc ff ff ff bnd jne fe9 <main+0xfe9> Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc c1 00 sha1rnds4 $0x0,%xmm1,%xmm0 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc d7 91 sha1rnds4 $0x91,%xmm7,%xmm2 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 00 91 sha1rnds4 $0x91,(%eax),%xmm0 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 05 78 56 34 12 91 sha1rnds4 $0x91,0x12345678,%xmm0 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 18 91 sha1rnds4 $0x91,(%eax),%xmm3 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 04 01 91 sha1rnds4 $0x91,(%ecx,%eax,1),%xmm0 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 04 05 78 56 34 12 91 sha1rnds4 $0x91,0x12345678(,%eax,1),%xmm0 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 04 08 91 sha1rnds4 $0x91,(%eax,%ecx,1),%xmm0 Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 3a cc 04 c8 91 sha1rnds4 $0x91,(%eax,%ecx,8),%xmm0 <SNIP lots of fails> Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 45 12 bndstx %bnd0,0x12(%rbp) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 44 01 12 bndstx %bnd0,0x12(%rcx,%rax,1) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 44 05 12 bndstx %bnd0,0x12(%rbp,%rax,1) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 44 08 12 bndstx %bnd0,0x12(%rax,%rcx,1) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 80 78 56 34 12 bndstx %bnd0,0x12345678(%rax) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 85 78 56 34 12 bndstx %bnd0,0x12345678(%rbp) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 84 01 78 56 34 12 bndstx %bnd0,0x12345678(%rcx,%rax,1) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 84 05 78 56 34 12 bndstx %bnd0,0x12345678(%rbp,%rax,1) Failed to decode 'rel' value (0xfffffffc vs expected 0): 0f 1b 84 08 78 56 34 12 bndstx %bnd0,0x12345678(%rax,%rcx,1) Decoded ok: f2 e8 00 00 00 00 bnd callq f22 <main+0xf22> Decoded ok: 67 f2 ff 10 bnd callq *(%eax) <SNIP lots of OKays> Decoded ok: 41 0f c7 9c c8 78 56 34 12 xrstors 0x12345678(%r8,%rcx,8) Decoded ok: 0f 01 ee rdpkru Decoded ok: 0f 01 ef wrpkru test child finished with -1 ---- end ---- x86 instruction decoder - new instructions: FAILED!
Fedora 25,
[acme@jouet linux]$ uname -a Linux jouet 4.10.0-rc8 #2 SMP Wed Feb 15 15:26:36 BRT 2017 x86_64 x86_64 x86_64 GNU/Linux
[acme@jouet linux]$ rpm -q binutils elfutils gcc glibc binutils-2.26.1-1.fc25.x86_64 elfutils-0.168-1.fc25.x86_64 gcc-6.3.1-1.fc25.x86_64 glibc-2.24-4.fc25.x86_64 glibc-2.24-4.fc25.i686 [acme@jouet linux]$
[acme@jouet linux]$ perf -v perf version 4.10.g264b77
perf as in tip/perf/core and soon as in acme/perf/core
- Arnaldo
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