Re: [Qemu-devel] [PULL v3 00/35] Misc patches for 2018-12-18

[Paolo Bonzini]

On 20/12/18 18:41, Peter Maydell wrote:
>> This seemed to work on most of my test hosts but something
>> weird happened here: hyperlong repetitive command line and
>> looks like make got an "fwrite(): Resource temporarily unavailable"
>> halfway through writing it out??
>>
>> This was on my x86-64 Linux Ubuntu system, clang build
>> which I configure with '--cc=clang' '--cxx=clang++' '--enable-gtk'
>> '--extra-cflags=-fsanitize=undefined  -fno-sanitize=shift-base -Werror';
>> the error is during the 'make -C build/clang check V=1' phase.
> 
> Checking my logfiles I think that the previous pull request
> apply attempt also failed this way, but I didn't notice
> because of the other failures on other hosts. It may be
> the combination of the huge command line and the way my
> test setup uses GNU parallel and ssh to capture the make
> output into a logfile.

Ok, I got it even better than the old harness.  Now each test is printed
individually and the V=1 command lines are very easily cut-and-pasted:

  TEST    check-qtest-x86_64: tests/endianness-test
  TEST    check-qtest-x86_64: tests/fdc-test
  TEST    check-qtest-x86_64: tests/ide-test
  TEST    check-qtest-x86_64: tests/ahci-test

With V=1:

export MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}
 QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64
QTEST_QEMU_IMG=qemu-img; tests/endianness-test -m=quick -k --tap |
./scripts/tap-driver.pl --test-name="endianness-test"
PASS 1 endianness-test /x86_64/endianness/pc
PASS 2 endianness-test /x86_64/endianness/split/pc
PASS 3 endianness-test /x86_64/endianness/combine/pc
export MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}
 QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64
QTEST_QEMU_IMG=qemu-img; tests/fdc-test -m=quick -k --tap |
./scripts/tap-driver.pl --test-name="fdc-test"
PASS 1 fdc-test /x86_64/fdc/cmos
PASS 2 fdc-test /x86_64/fdc/no_media_on_start
PASS 3 fdc-test /x86_64/fdc/read_without_media

...

(as long as you don't use -k).  Thanks for the test.

Paolo