strings: SIGILL on s390x on z196 #17032
Description
Please answer these questions before submitting your issue. Thanks!
What version of Go are you using (go version)?
1.7 or 1.7.1
What operating system and processor architecture are you using (go env)?
unname -a says "Linux zelenka 3.16.0-4-s390x #1 SMP Debian 3.16.36-1+deb8u1 (2016-09-03) s390x GNU/Linux". This has been seen on https://db.debian.org/machines.cgi?host=zelenka and https://db.debian.org/machines.cgi?host=zandonai, a Debian porter and build box respectively. /proc/cpuinfo has "processor 0: version = FF, identification = 06A18A, machine = 2817".
It doesn't happen on a z13 running Ubuntu 16.10.
What did you do?
./all.bash
What did you expect to see?
tests passing
What did you see instead?
SIGILL: illegal instruction
PC=0x755be m=4
goroutine 52 [running]:
runtime.checkvectorfacility()
/«PKGBUILDDIR»/src/runtime/asm_s390x.s:35 +0x4e fp=0xc42003cd78 sp=0xc42003cd50
created by testing.(*T).Run
/«PKGBUILDDIR»/src/testing/testing.go:646 +0x376
goroutine 1 [chan receive]:
testing.(*T).Run(0xc42004acc0, 0x185eca, 0xf, 0x19e300, 0x10000000003f372)
/«PKGBUILDDIR»/src/testing/testing.go:647 +0x3a0
testing.RunTests.func1(0xc420070000)
/«PKGBUILDDIR»/src/testing/testing.go:793 +0xe6
testing.tRunner(0xc420070000, 0xc42003edb8)
/«PKGBUILDDIR»/src/testing/testing.go:610 +0xd8
testing.RunTests(0x19db20, 0x238520, 0x31, 0x31, 0x100000000000c03)
/«PKGBUILDDIR»/src/testing/testing.go:799 +0x3da
testing.(*M).Run(0xc42003ef08, 0xf)
/«PKGBUILDDIR»/src/testing/testing.go:743 +0x88
main.main()
strings/_test/_testmain.go:292 +0x14c
r0 0x1 r1 0x40
r2 0xc42003cda0 r3 0xc4202855c0
r4 0x11 r5 0x6e
r6 0xc4202855c0 r7 0x1
r8 0xc4202855d1 r9 0x6e
r10 0x40 r11 0x1b8cb54
r12 0x3fffd27faa0 r13 0xc420001380
r14 0x78afc r15 0xc42003cd50
pc 0x755be link 0x78afc
FAIL strings 0.155s
(full log at https://buildd.debian.org/status/fetch.php?pkg=golang-1.7&arch=s390x&ver=1.7.1-1&stamp=1473301050)