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Andrew Morton <akpm@osdl.org> writes: > ebiederm@xmission.com (Eric W. Biederman) wrote: >> >> I am beginning to suspect that we will want to fix kernel_thread so it >> creates copies of the init_task rather than copies of whatever random >> user space process we happen to be a member of at the time. With an >> enhanced kernel_thread this problem could more easily avoided, as >> we add additional namespaces to the kernel. > > You wouldn't believe the problems we had with kernel_thread followed by > call_usermodehelper() due to inheritance of random stuff from the userspace > parent. > > A suitable solution is to stop using kernel_thread(), migrate to the > kthread API - that way the threads are parented by keventd which is a known > and good environment. Thanks. This sounds worth investigating. On the other hand call_usermodehelper is the one case where we might want to share some of the attributes with an existing process, at least if we ever want it to run in a non-default namespace. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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