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    SubjectRe: 3.14-rc2 XFS backtrace because irqs_disabled.
    On 02/13, Oleg Nesterov wrote:
    >
    > On 02/13, Linus Torvalds wrote:
    > >
    > > On Thu, Feb 13, 2014 at 9:40 AM, Oleg Nesterov <oleg@redhat.com> wrote:
    > > >
    > > > And we should be careful with SIGQUEUE_PREALLOC, at least
    > > > collect_signal() should not do list_del_init()... Plus we need to
    > > > handle the SEND_SIG_FORCED-like case.
    > >
    > > I don't think the users need to care. They'd just call
    > > "sigqueue_free()" not knowing about our preallocations etc.
    >
    > Yes, but we need to be careful to avoid the races with
    > release_posix_timer().

    Plus we need to delay do_schedule_next_timer() as well. But this
    is probably good because we can avoid unlock/lock(siglock) in
    dequeue_signal().

    Oleg.



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