Keeping up with the Kroah-Hartmans (who upgrade without notice)
Posted Aug 3, 2006 21:19 UTC (Thu) by wilck
In reply to: Keeping up with the Kroah-Hartmans (who upgrade without notice)
Parent article: New kernels and old distributions
This means that Linus' policy against messing with userspace interfaces cannot meaningfully apply to sysfs, any more than to kmem.
There is a huge difference between sysfs and /dev/kmem.
sysfs is globally visible and has a lot of reasonable uses. For example, there are lots of tunables in sysfs that are outside the scope of udev and HAL but useful for other system applications. /dev/kmem, on the other hand, is usually only accessible to root, and useful only for kernel debugging.
But the converse obligation, that the latest
kernel should support old versions of udev and HAL, imposes *exactly* the
'stable API nonsense' that the kernel developers have declared utterly
Perhaps the opposite is true - perhaps the 'stable API' is a more complex subject than Greg and his followers pretend? Perhaps it is not such total nonsense, after all? The discussion between Greg and Andrew is interesting in that respect: it appears that Andrew considers user space breakage more 'utterly unacceptable' than the restrictions on development progress caused by the stable sysfs API.
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