Re: [PATCH 0/2] qcow2: seriously improve savevm performance

[no-reply]

Patchew URL: 20200610144129.27659-1-den@openvz.org/">https://patchew.org/QEMU/20200610144129.27659-1-den@openvz.org/



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@fedora TARGET_LIST=x86_64-softmmu J=14 NETWORK=1
=== TEST SCRIPT END ===

  CC      block/gluster.o
  CC      block/ssh.o
  CC      block/dmg-bz2.o
/tmp/qemu-test/src/block/qcow2.c:5139:9: error: variable 'err' is used 
uninitialized whenever 'if' condition is false 
[-Werror,-Wsometimes-uninitialized]
    if (t->bytes != 0) {
        ^~~~~~~~~~~~~
/tmp/qemu-test/src/block/qcow2.c:5147:12: note: uninitialized use occurs here
---
           ^
            = 0
1 error generated.
make: *** [/tmp/qemu-test/src/rules.mak:69: block/qcow2.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
  File "./tests/docker/docker.py", line 665, in <module>
---
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-n', 'docker', 'run', 
'--label', 'com.qemu.instance.uuid=213a8da69081459b91db63888e1cc6a0', '-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-v54hgiy2/src/docker-src.2020-06-10-14.20.39.19315:/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=213a8da69081459b91db63888e1cc6a0
make[1]: *** [docker-run] Error 1
make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-v54hgiy2/src'
make: *** [docker-run-test-debug@fedora] Error 2

real    4m8.609s
user    0m8.917s


The full log is available at
20200610144129.27659-1-den@openvz.org/testing.asan/?type=message">http://patchew.org/logs/20200610144129.27659-1-den@openvz.org/testing.asan/?type=message.
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