Messages in this thread | | | Date | Fri, 13 Mar 2020 21:13:14 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] timer: silenct a lockdep splat with debugobjects |
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On Fri, Mar 13, 2020 at 03:32:52PM -0400, Qian Cai wrote: > Well, in mm/vmstat.c (init_mm_internals) case for example, it was initialized > as a static, > > static DECLARE_DEFERRABLE_WORK(shepherd, vmstat_shepherd); > > which will not call __debug_object_init().
Then fix that.
That is, all of:
DECLARE_DEFERRABLE_WORK KTHREAD_DELAYED_WORK_INIT DEFINE_TIMER
are broken and need to go.
Unless of course, you can frob debugobjects such that we can provide the required storage through is_static_object() and modify the above static declarators to provide the storage.
Or, fix that random crud to do the wakeup outside of the lock.
Plenty options..
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