Messages in this thread | | | Subject | Re: [PATCH] lockdep: Show up to three levels for a deadlock scenario | From | Dhaval Giani <> | Date | Tue, 19 Dec 2017 11:30:29 -0500 |
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On 2017-12-14 12:59 PM, Peter Zijlstra wrote: > On Thu, Dec 14, 2017 at 12:38:52PM -0500, Steven Rostedt wrote: >> >> Currently, when lockdep detects a possible deadlock scenario that involves 3 >> or more levels, it just shows the chain, and a CPU sequence order of the >> first and last part of the scenario, leaving out the middle level and this >> can take a bit of effort to understand. By adding a third level, it becomes >> easier to see where the deadlock is. > > So is anybody actually using this? This (together with the callchain for > #0) is always the first thing of the lockdep output I throw away. >
Yes :-). The other stuff is unreadable to people not you.
Dhaval
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