Andrew Morton <[email protected]> writes:
> [email protected] (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 [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
