Re: [Qemu-devel] [Bug 1729623] [NEW] test-aio-multithread fails with 'Co-routine re-entered recursively'

[Stefan Hajnoczi]

On Thu, Nov 02, 2017 at 03:11:30PM -0000, R.Nageswara Sastry wrote:
> Public bug reported:
> 
> git head is at fa73e146250181852c0915aa65df8d54d35485fa
> 
> configure with the following
> 
> ./configure --enable-attr --enable-bsd-user --enable-cap-ng\
>  --enable-coroutine-pool  --enable-crypto-afalg --enable-curl\
>  --enable-curses --enable-debug --enable-debug-info\
>  --enable-debug-tcg      --enable-fdt      --enable-gcrypt \
>  --enable-gnutls      --enable-gprof      --enable-gtk  \
>  --enable-guest-agent      --enable-kvm      --enable-libiscsi \
>  --enable-libssh2      --enable-linux-aio      --enable-linux-user \
>  --enable-live-block-migration      --enable-modules   \
>  --enable-numa      --enable-pie      --enable-profiler \
>  --enable-qom-cast-debug      --enable-rbd      --enable-replication  \
>  --enable-seccomp      --enable-smartcard      --enable-stack-protector \
>  --enable-system      --enable-tcg      --enable-tcg-interpreter  \
>  --enable-tools      --enable-tpm      --enable-trace-backend=ftrace \
>  --enable-user      --enable-vhost-net      --enable-vhost-scsi  \
>  --enable-vhost-user      --enable-vhost-vsock      --enable-virtfs  \ 
>  --enable-vnc      --enable-tpm      --enable-vnc-png   \
>  --enable-vnc-sasl      --enable-werror      --enable-xfsctl \
>  --enable-gcov --enable-debug-stack-usage
> 
> make -j 32
> 
> make test-aio-multithread V=1
> 
> ...
> File '/home/nasastry/qemu/include/qapi/qmp/qobject.h'
> No executable lines
> 
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))} gtester -k 
> --verbose -m=quick tests/test-aio-multithread
> TEST: tests/test-aio-multithread... (pid=86877)
>   /aio/multi/lifecycle:                                                OK
>   /aio/multi/schedule:                                                 
> Co-routine re-entered recursively
> FAIL

I cannot reproduce it locally.

Please run with gdb tests/test-aio-multithread and post the backtrace
when the "Co-routine re-entered recursively" message is printed using
the "thread apply all bt" gdb command.

Stefan

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