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| Started by | David Vrabel <david.vrabel@citrix.com> |
|---|---|
| First post | 2015-12-02 15:20 +0100 |
| Last post | 2015-12-02 15:20 +0100 |
| Articles | 1 — 1 participant |
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Re: [Xen-devel] linux 4.4 Regression: 100% cpu usage on idle pv guest under Xen with single vcpu. David Vrabel <david.vrabel@citrix.com> - 2015-12-02 15:20 +0100
| From | David Vrabel <david.vrabel@citrix.com> |
|---|---|
| Date | 2015-12-02 15:20 +0100 |
| Subject | Re: [Xen-devel] linux 4.4 Regression: 100% cpu usage on idle pv guest under Xen with single vcpu. |
| Message-ID | <qBgqf-8gM-33@gated-at.bofh.it> |
On 28/11/15 15:47, Sander Eikelenboom wrote: > > -rtc_cmos rtc_cmos: hctosys: unable to read the hardware clock > +hctosys: unable to open rtc device (rtc0) > > -genirq: Flags mismatch irq 8. 00000000 (hvc_console) vs. 00000000 (rtc0) > -hvc_open: request_irq failed with rc -16. I have reproduced this issue. We really shouldn't have an RTC device in a PV guest and I think this irq conflict breaks hvc0. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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