Re: [Qemu-devel] [PULL 00/37] Block layer patches

From: Peter Maydell <peter.maydell@linaro.org>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Qemu-block <qemu-block@nongnu.org>,
	QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PULL 00/37] Block layer patches
Date: Mon, 5 Mar 2018 13:27:53 +0000	[thread overview]
Message-ID: <CAFEAcA9xKJxWrdkU7cTW7YgJSMG3f5ZfqD5vP8wtFUYEX5SRQw@mail.gmail.com> (raw)
In-Reply-To: <20180302185448.6314-1-kwolf@redhat.com>

On 2 March 2018 at 18:54, Kevin Wolf <kwolf@redhat.com> wrote:
> The following changes since commit 86f4c7e05b1c44dbe1b329a51f311f10aef6ff34:
>
>   Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180302' into staging (2018-03-02 14:37:10 +0000)
>
> are available in the git repository at:
>
>   git://repo.or.cz/qemu/kevin.git tags/for-upstream
>
> for you to fetch changes up to 9d9b4b640f9e583ff4b24dc762630945f3ccc16d:
>
>   Merge remote-tracking branch 'mreitz/tags/pull-block-2018-03-02' into queue-block (2018-03-02 18:45:03 +0100)
>
> ----------------------------------------------------------------
> Block layer patches
>

This gives me a clang sanitizer error while running 'make check':

e104462:xenial:clang$ UBSAN_OPTIONS=print_stacktrace=1
QTEST_QEMU_BINARY=i386-softmmu/qemu-system-i386
QTEST_QEMU_IMG=qemu-img tests/ide-test
/i386/ide/identify: OK
/i386/ide/flush: OK
/i386/ide/bmdma/setup: OK
/i386/ide/bmdma/simple_rw: OK
/i386/ide/bmdma/trim: OK
/i386/ide/bmdma/short_prdt: OK
/i386/ide/bmdma/one_sector_short_prdt: OK
/i386/ide/bmdma/long_prdt: OK
/i386/ide/bmdma/no_busmaster: OK
/i386/ide/bmdma/teardown: OK
/i386/ide/flush/nodev: OK
/i386/ide/flush/empty_drive:
/home/petmay01/linaro/qemu-for-merges/block.c:3926:16: runtime error:
member access within null pointer of type 'const BlockDriverState'
(aka 'const struct BlockDriverState')
    #0 0x5560b5776f48 in bdrv_get_node_name
/home/petmay01/linaro/qemu-for-merges/block.c:3926:16
    #1 0x5560b587fc92 in send_qmp_error_event
/home/petmay01/linaro/qemu-for-merges/block/block-backend.c:1621:36
    #2 0x5560b587fc92 in blk_error_action
/home/petmay01/linaro/qemu-for-merges/block/block-backend.c:1655
    #3 0x5560b52619e6 in ide_handle_rw_error
/home/petmay01/linaro/qemu-for-merges/hw/ide/core.c:836:5
    #4 0x5560b5278d7b in ide_flush_cb
/home/petmay01/linaro/qemu-for-merges/hw/ide/core.c:1067:13
    #5 0x5560b58822ac in blk_aio_complete
/home/petmay01/linaro/qemu-for-merges/block/block-backend.c:1286:9
    #6 0x5560b5a04417 in aio_bh_poll
/home/petmay01/linaro/qemu-for-merges/util/async.c:118:13
    #7 0x5560b5a10cef in aio_dispatch
/home/petmay01/linaro/qemu-for-merges/util/aio-posix.c:436:5
    #8 0x5560b5a062fa in aio_ctx_dispatch
/home/petmay01/linaro/qemu-for-merges/util/async.c:261:5
    #9 0x7f9786667196 in g_main_context_dispatch
(/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4a196)
    #10 0x5560b5a0dd08 in glib_pollfds_poll
/home/petmay01/linaro/qemu-for-merges/util/main-loop.c:214:9
    #11 0x5560b5a0dd08 in os_host_main_loop_wait
/home/petmay01/linaro/qemu-for-merges/util/main-loop.c:261
    #12 0x5560b5a0dd08 in main_loop_wait
/home/petmay01/linaro/qemu-for-merges/util/main-loop.c:515
    #13 0x5560b4fdebf2 in main_loop
/home/petmay01/linaro/qemu-for-merges/vl.c:1942:9
    #14 0x5560b4fdebf2 in main /home/petmay01/linaro/qemu-for-merges/vl.c:4772
    #15 0x7f97843ec82f in __libc_start_main
/build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
    #16 0x5560b4b456c8 in _start
(/home/petmay01/linaro/qemu-for-merges/build/clang/i386-softmmu/qemu-system-i386+0xe5c6c8)

OK
/i386/ide/flush/retry_pci: OK
/i386/ide/flush/retry_isa: OK
/i386/ide/cdrom/pio: OK
/i386/ide/cdrom/pio_large: OK
/i386/ide/cdrom/dma: OK

thanks
-- PMM