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Kevin Wolf authored
Without this, qemu segfaults when a BH handler first deletes its BH and then calls another function which involves a nested qemu_bh_poll() call. This can be reproduced by generating an I/O error (e.g. with blkdebug) on an IDE device and using rerror/werror=stop to stop the VM. When continuing the VM, qemu segfaults. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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