The discussion was rather privately with more or less only Alexey Starikovskiy responding. And after seeing the patch that i used for serialization failing too, I reviewed the comment that made me think there is a race at that place. Unfortunately it turns out to be a false positive. The messages were taken from different sources, so some other output is naturally missing. That said, it really sounds like it is only a matter of the printk's that make a difference. Gutsy did not show the problem since the change to enable/install the ec_handlers went into hardy only. So what we know is, installing the handlers fails if the timing is not right. If there is enough delay until that function is called it is ok. Otherwise there are problems. It still might be a matter of a slightly different timing upstream but if you could do a git bisect that would be very valuable. For me it would just be the same. Trying to offer kernels with more and more patches to ACPI from upstream until there is a noticeable change. But of course this always has a delay to build that kernels and then push them...
-- [Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet' option is enabled or AC power is connected https://bugs.launchpad.net/bugs/191137 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs