So bisect reports this is the offending commit:
aa0eb3474beae8f6d9dcc2311dc02bea50cfd7b7 is the first bad commit commit aa0eb3474beae8f6d9dcc2311dc02bea50cfd7b7 Author: Thomas Gleixner <[email protected]> Date: Tue Feb 7 17:58:03 2012 +0100 genirq: Unmask oneshot irqs when thread was not woken commit ac5637611150281f398bb7a47e3fcb69a09e7803 upstream. When the primary handler of an interrupt which is marked IRQ_ONESHOT returns IRQ_HANDLED or IRQ_NONE, then the interrupt thread is not woken and the unmask logic of the interrupt line is never invoked. This keeps the interrupt masked forever. This was not noticed as most IRQ_ONESHOT users wake the thread unconditionally (usually because they cannot access the underlying device from hard interrupt context). Though this behaviour was nowhere documented and not necessarily intentional. Some drivers can avoid the thread wakeup in certain cases and run into the situation where the interrupt line s kept masked. Handle it gracefully. Reported-and-tested-by: Lothar Wassmann <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> :040000 040000 ab75402953eedef69bc60cade7653379c2f09c69 d5d5088d30573fff66356a2a87e6caafe625ae75 M kernel I'll build a test kernel with this commit reverted and post it shortly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/947751 Title: 3.2.0-18-generic: Broadcom BCM4306 Wireless (rev 03) [14e4:4320]: Network links are *never* ready To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/947751/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
