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Date: Tue, 01 Jul 2014 15:42:56 +0200
From: Christian Borntraeger <borntraeger@de.ibm.com>
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Subject: Re: [Qemu-devel] segfault with qemu master and dataplane
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To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

On 01/07/14 15:41, Christian Borntraeger wrote:
> Stefan,
> with current qemu master (without your latest patch request, but it does not make a difference) I get:
> ...
> Program terminated with signal 11, Segmentation fault.
> #0  0x000000008006b01e in virtio_blk_rw_complete (opaque=0x80a68980, ret=<optimized out>) at /home/cborntra/REPOS/qemu/hw/block/virtio-blk.c:99
> 99	    bdrv_acct_done(req->dev->bs, &req->acct);
> (gdb) bt -a
> #0  0x000000008006b01e in virtio_blk_rw_complete (opaque=0x80a68980, ret=<optimized out>) at /home/cborntra/REPOS/qemu/hw/block/virtio-blk.c:99
> #1  0x000000008019e614 in bdrv_co_em_bh (opaque=0x80a692c0) at /home/cborntra/REPOS/qemu/block.c:4675
> #2  0x0000000080195e50 in aio_bh_poll (ctx=ctx@entry=0x809a9c10) at /home/cborntra/REPOS/qemu/async.c:81
> #3  0x00000000801a835e in aio_poll (ctx=0x809a9c10, blocking=blocking@entry=true) at /home/cborntra/REPOS/qemu/aio-posix.c:188
> #4  0x00000000800b6e20 in iothread_run (opaque=0x809a9ab8) at /home/cborntra/REPOS/qemu/iothread.c:41
> #5  0x000003fffd35a412 in start_thread () from /lib64/libpthread.so.0
> #6  0x000003fffbfe00ae in thread_start () from /lib64/libc.so.6
> (gdb) print req->dev 
> $1 = (VirtIOBlock *) 0x0
> 
> any idea?
> 
> Christian
> 

Ok. Just saw the other mail...