Messages in this thread | | | From | (Eric W. Biederman) | Subject | [PATCH 0/4] Fix the binary ipc and uts namespace sysctls. | Date | Sun, 26 Nov 2006 21:59:26 -0700 |
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The binary interface to the namespace sysctls was never implemented resulting in some really weird things if you attempted to use sys_sysctl to read your hostname for example.
This patch series simples the code a little and implements the binary sysctl interface.
In testing this patch series I discovered that our 32bit compatibility for the binary sysctl interface is imperfect. In particular KERN_SHMMAX and KERN_SMMALL are size_t sized quantities and are returned as 8 bytes on to 32bit binaries using a x86_64 kernel. However this has existing for a long time so it is not a new regression with the namespace work.
Gads the whole sysctl thing needs work before it stops being easy to shoot yourself in the foot.
Looking forward a little bit we need a better way to handle sysctls and namespaces as our current technique will not work for the network namespace. I think something based on the current overlapping sysctl trees will work but the proc side needs to be redone before we can use it.
Eric
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