Messages in this thread | | | Date | Mon, 18 Dec 2017 20:06:12 -0500 | From | Steven Rostedt <> | Subject | Re: [v4.9-rt][report] stress-ng: possible circular locking dependency detected |
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On Mon, 18 Dec 2017 18:55:24 -0600 Grygorii Strashko <grygorii.strashko@ti.com> wrote:
> Hi All, > > I've tried to run stress-ng on TI am57xx-evm (SMP, 2 cpu) and caught 2 "INFO: possible circular locking dependency detected" > > Command 1 (log 1): > ## stress-ng --class cpu --all 0 -t 5m & stress-ng --class memory --all 0 --vm-bytes 90% -t 5m > > Command 2 (log 2): > ## stress-ng --class os --all 0 -t 5m > > actually command 2 often stuck or crushes (Log3 - I've collected 3 different dumps) >
I hate to tell you but CPU hotplug is known to be broken on 4.9-rt and earlier. Hopefully the v4.14-rt code with the redesigned hotplug work fixes all this.
-- Steve
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