Re: [Qemu-devel] [PATCH v5 0/6] Allow Valgrind checking all QEMU processes

[Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>]

PINGING...

On 19/07/2019 19:30, Andrey Shinkevich wrote:
> In the current implementation of the QEMU bash iotests, only qemu-io
> processes may be run under the Valgrind, which is a useful tool for
> finding memory usage issues. Let's allow the common.rc bash script
> runing all the QEMU processes, such as qemu-kvm, qemu-img, qemu-ndb
> and qemu-vxhs, under the Valgrind tool.
> 
> v5:
>    01: The patch "block/nbd: NBDReply is used being uninitialized" was detached
>        and taken into account in the patch "nbd: Initialize reply on failure"
>        by Eric Blake.
> 
> v4:
>    01: The patch "iotests: Set read-zeroes on in null block driver for Valgrind"
>        was extended with new cases and issued as a separate series.
>    02: The new patch "block/nbd: NBDReply is used being uninitialized" was
>        added to resolve the failure of the iotest 083 run under Valgrind.
> 
> v3:
>    01: The new function _casenotrun() was added to the common.rc bash
>        script to notify the user of test cases dropped for some reason.
>        Suggested by Kevin.
>        Particularly, the notification about the nonexistent TMPDIR in
>        the test 051 was added (noticed by Vladimir).
>    02: The timeout in some test cases was extended for Valgrind because
>        it differs when running on the ramdisk.
>    03: Due to the common.nbd script has been changed with the commit
>        b28f582c, the patch "iotests: amend QEMU NBD process synchronization"
>        is actual no more. Note that QEMU_NBD is launched in the bash nested
>        shell in the _qemu_nbd_wrapper() as it was before in common.rc.
>    04: The patch "iotests: new file to suppress Valgrind errors" was dropped
>        due to my superficial understanding of the work of the function
>        blk_pread_unthrottled(). Special thanks to Kevin who shed the light
>        on the null block driver involved. Now, the parameter 'read-zeroes=on'
>        is passed to the null block driver to initialize the buffer in the
>        function guess_disk_lchs() that the Valgrind was complaining to.
> 
> v2:
>    01: The patch 2/7 of v1 was merged into the patch 1/7, suggested by Daniel.
>    02: Another patch 7/7 was added to introduce the Valgrind error suppression
>        file into the QEMU project.
>    Discussed in the email thread with the message ID:
>    <1560276131-683243-1-git-send-email-andrey.shinkevich@virtuozzo.com>
> 
> Andrey Shinkevich (6):
>    iotests: allow Valgrind checking all QEMU processes
>    iotests: exclude killed processes from running under  Valgrind
>    iotests: Add casenotrun report to bash tests
>    iotests: Valgrind fails with nonexistent directory
>    iotests: extended timeout under Valgrind
>    iotests: extend sleeping time under Valgrind
> 
>   tests/qemu-iotests/028       |  6 +++-
>   tests/qemu-iotests/039       |  5 +++
>   tests/qemu-iotests/039.out   | 30 +++--------------
>   tests/qemu-iotests/051       |  4 +++
>   tests/qemu-iotests/061       |  2 ++
>   tests/qemu-iotests/061.out   | 12 ++-----
>   tests/qemu-iotests/137       |  1 +
>   tests/qemu-iotests/137.out   |  6 +---
>   tests/qemu-iotests/183       |  9 +++++-
>   tests/qemu-iotests/192       |  6 +++-
>   tests/qemu-iotests/247       |  6 +++-
>   tests/qemu-iotests/common.rc | 76 +++++++++++++++++++++++++++++++++-----------
>   12 files changed, 101 insertions(+), 62 deletions(-)
> 

-- 
With the best regards,
Andrey Shinkevich