Hi,
Last night I tried to help Tom R. debug boot failures and it turned out that he
was missing the sys_accept4() syscall. This morning I helped a coworker with
the same problem. So let's summarize the situation:
1) recent udevs (>165) depend on the accept4() syscall
2) kernel 2.6.28 added that syscall, but didn't wire it up for all archs
3) kernel 2.6.36 wired it up for ARM
So to get a working recent udev on ARM you need to do the following:
a) use >= 2.6.36 as linux libc headers or cherry-pick this one:
21d93e2e29722d7832f61cc56d73fb953ee6578e ARM: 6329/1: wire up
sys_accept4() on ARM
b) cherry-pick the above into your kernel, cherry-pick works cleanly for at
least the 2.6.32 and 2.6.35 kernels I tried it on
And if you want to use systemd:
c) cherry-pick 676db4af043014e852f67ba0349dae0071bd11f3 cgroupfs: create
/sys/fs/cgroup to mount cgroupfs
If you're using a prebuilt toolchain, contact your toolchain vender to get a
headerset and c library with that syscall and optionally things like
signalfd(). OE-core users only need to check b) if they are using their own
<2.6.36 kernels.
regards,
Koen
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