I'll weigh in here: I maintain the corresponding driver for ArchLinux; at Arch, the default kernel is pretty much "plain vanilla", and it suffers from this very same problem, since CONFIG_PREEMPT_RCU is on by default. I've been hoping for a resolution to this problem since March, as it has affected Arch since kernel 3.8 and the changes it prompted to this driver at that time (introducing the calls to rcu_read_lock/unlock in the driver).
For a while, I was under the impression that this problem had been fixed for Ubuntu / low latency, and had been scratching my head to find out how, but I guess I am on the wrong track: it is still a problem on Ubuntu as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1156138 Title: bcmwl-kernel-source fails to build on lowlatency kernel [FATAL: modpost: GPL-incompatible module wl.ko uses GPL-only symbol '__rcu_read_unlock'] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1156138/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
