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由 Jim Fehlig 提交于
If available, let libxl handle reaping any children it creates by specifying libxl_sigchld_owner_libxl_always_selective_reap. This feature was added to improve subprocess handling in libxl when used in an application that does not install a SIGCHLD handler like libvirt http://lists.xen.org/archives/html/xen-devel/2014-01/msg01555.html Prior to this patch, it is possible to hit asserts in libxl when reaping subprocesses, particularly during simultaneous operations on multiple domains. With this patch, and the corresponding changes to libxl, I no longer see the asserts. Note that the libxl changes will be included in Xen 4.4.0. Previous Xen versions will be susceptible to hitting the asserts even with this patch applied to the libvirt libxl driver. Signed-off-by: NJim Fehlig <jfehlig@suse.com>
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