GNU bug report logs - #43048
QEMU 5 fails its test suite on some machines (e.g., AMD Ryzen 3900X)

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: bug#43048: closed (Re: bug#43048: QEMU 5 fails its test suite)
Date: Sun, 20 Sep 2020 03:30:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#43048: QEMU 5 fails its test suite on some machines (e.g., AMD Ryzen 3900X)

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 43048 <at> debbugs.gnu.org.

-- 
43048: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=43048
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: 43048-done <at> debbugs.gnu.org
Subject: Re: bug#43048: QEMU 5 fails its test suite
Date: Sat, 19 Sep 2020 23:30:04 -0400

Hello,

Maxim Cournoyer <maxim.cournoyer <at> gmail.com> writes:

> Hello,
>
> Found while reconfiguring with Guix at commit fbd36a233420757e11b6abb076647781d4e5652d:
>
> SS 17 hd-geo-test /i386/hd-geo/override/virtio_hot_unplug
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=i386-softmmu/qemu-system-i386 QTEST_QEMU_IMG=qemu-img tests/qtest/boot-order-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="boot-order-test" 
> PASS 1 boot-order-test /i386/boot-order/pc
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=i386-softmmu/qemu-system-i386 QTEST_QEMU_IMG=qemu-img tests/qtest/bios-tables-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="bios-tables-test" 
> qemu-system-i386: error: failed to set MSR 0x4b564d02 to 0x0
> qemu-system-i386: /tmp/guix-build-qemu-5.0.0.drv-0/qemu-5.0.0/target/i386/kvm.c:2695: kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
> Broken pipe
> tests/qtest/libqtest.c:175: kill_qemu() detected QEMU death from signal 6 (Aborted)
> ERROR - too few tests run (expected 17, got 0)
> make: *** [/tmp/guix-build-qemu-5.0.0.drv-0/qemu-5.0.0/tests/Makefile.include:636: check-qtest-i386] Error 1
>
> Test suite failed, dumping logs.
> command "make" "check" "V=1" failed with status 2
> builder for `/gnu/store/xkw86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv' failed with exit code 1
> build of /gnu/store/xkw86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv failed
> View build log at '/var/log/guix/drvs/xk/w86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv.bz2'.
> guix system: error: build of
> `/gnu/store/xkw86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv' failed

I was able to reproduce this on the master branch of QEMU and could get
a backtrace.  I opened an upstream ticket with QEMU here:
https://bugs.launchpad.net/qemu/+bug/1896263.

In the meantime, this is worked around in our qemu package by disabling
the bios-tables-test test (pushed with commit
afeed71ae447ea18f7bc1b0b331e73e995308251).

Closing,

Maxim

[Message part 3 (message/rfc822, inline)]

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: QEMU 5 fails its test suite
Date: Tue, 25 Aug 2020 14:59:26 -0400

Hello,

Found while reconfiguring with Guix at commit fbd36a233420757e11b6abb076647781d4e5652d:

--8<---------------cut here---------------start------------->8---
SS 17 hd-geo-test /i386/hd-geo/override/virtio_hot_unplug
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=i386-softmmu/qemu-system-i386 QTEST_QEMU_IMG=qemu-img tests/qtest/boot-order-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="boot-order-test" 
PASS 1 boot-order-test /i386/boot-order/pc
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}  QTEST_QEMU_BINARY=i386-softmmu/qemu-system-i386 QTEST_QEMU_IMG=qemu-img tests/qtest/bios-tables-test -m=quick -k --tap < /dev/null | ./scripts/tap-driver.pl --test-name="bios-tables-test" 
qemu-system-i386: error: failed to set MSR 0x4b564d02 to 0x0
qemu-system-i386: /tmp/guix-build-qemu-5.0.0.drv-0/qemu-5.0.0/target/i386/kvm.c:2695: kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
Broken pipe
tests/qtest/libqtest.c:175: kill_qemu() detected QEMU death from signal 6 (Aborted)
ERROR - too few tests run (expected 17, got 0)
make: *** [/tmp/guix-build-qemu-5.0.0.drv-0/qemu-5.0.0/tests/Makefile.include:636: check-qtest-i386] Error 1

Test suite failed, dumping logs.
command "make" "check" "V=1" failed with status 2
builder for `/gnu/store/xkw86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv' failed with exit code 1
build of /gnu/store/xkw86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv failed
View build log at '/var/log/guix/drvs/xk/w86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv.bz2'.
guix system: error: build of
`/gnu/store/xkw86xzrqamn9kjihkdwrfiadvmxrxh1-qemu-5.0.0.drv' failed
--8<---------------cut here---------------end--------------->8---

Maxim

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