On 10/6/20 4:19 am, Samuel Sieb wrote:
On 6/9/20 5:10 AM, Stephen Morris wrote:
Hi,
I have the following messages in dmesg output, are they
indicating a cpu issue, or are they just indicating that because
linux is running in a vm under windows, and hence sharing the cpu
cores with windows that windows was using core 7 at the time the
process checked?
[16236.896502] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[16236.896506] rcu: 7-...!: (0 ticks this GP) idle=d48/0/0x0
softirq=207101/207101 fqs=0
[16236.896508] (detected by 4, t=60008 jiffies, g=263697, q=1058)
[16236.896510] Sending NMI from CPU 4 to CPUs 7:
[16236.896563] NMI backtrace for cpu 7 skipped: idling at
native_safe_halt+0xe/0x10
[16236.897522] rcu: rcu_sched kthread starved for 60008 jiffies!
g263697 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=7
It's possible that Windows was using that core for long enough that
the kernel thought that it wasn't getting enough time. Did you share
all the cores with the VM? That's not a good idea.
I did specify that the VM had access to 8 cores, as I wanted the VM to
be able to time slice all cores if I was doing graphic intensive
processes like photo editing, video playing or video format conversions
if I could figure out how to drive ffmpeg properly.
regards,
Steve
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