[PATCH v4 0/7] Tighten qemu-img rules on missing backing format

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Patchew URL: https://patchew.org/QEMU/20200312192822.3739399-1-eblake@redhat.com/



Hi,

This series failed the asan build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.

=== TEST SCRIPT BEGIN ===
#!/bin/bash
export ARCH=x86_64
make docker-image-fedora V=1 NETWORK=1
time make docker-test-debug at fedora TARGET_LIST=x86_64-softmmu J=14 NETWORK=1
=== TEST SCRIPT END ===

  CC      block/replication.o
  CC      block/throttle.o
  CC      block/copy-on-read.o
/tmp/qemu-test/src/block/sheepdog.c:2174:9: error: variable 'qdict' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
    if (backing_fmt && strcmp(backing_fmt, "sheepdog") != 0) {
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/qemu-test/src/block/sheepdog.c:2241:19: note: uninitialized use occurs here
---
                ^
                 = NULL
1 error generated.
make: *** [/tmp/qemu-test/src/rules.mak:69: block/sheepdog.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "./tests/docker/docker.py", line 664, in <module>
---
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', '--label', 'com.qemu.instance.uuid=93997e5b5eb34c2f9cb85363713a7f85', '-u', '1001', '--security-opt', 'seccomp=unconfined', '--rm', '-e', 'TARGET_LIST=x86_64-softmmu', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=14', '-e', 'DEBUG=', '-e', 'SHOW_ENV=', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/home/patchew/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-7l8c91wu/src/docker-src.2020-03-12-17.35.51.6480:/var/tmp/qemu:z,ro', 'qemu:fedora', '/var/tmp/qemu/run', 'test-debug']' returned non-zero exit status 2.
filter=--filter=label=com.qemu.instance.uuid=93997e5b5eb34c2f9cb85363713a7f85
make[1]: *** [docker-run] Error 1
make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-7l8c91wu/src'
make: *** [docker-run-test-debug at fedora] Error 2

real    3m14.071s
user    0m8.555s


The full log is available at
http://patchew.org/logs/20200312192822.3739399-1-eblake@redhat.com/testing.asan/?type=message.
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