Re: [Xen-devel] linux 4.4 Regression: 100% cpu usage on idle pv guest under Xen with single vcpu.

On 2015-12-02 00:41, Boris Ostrovsky wrote: On 12/01/2015 06:30 PM, Sander Eikelenboom wrote: On 2015-12-02 00:19, Boris Ostrovsky wrote: On 12/01/2015 06:00 PM, Sander Eikelenboom wrote: On 2015-12-01 23:47, Boris Ostrovsky wrote: On 11/30/2015 05:55 PM, Sander Eikelenboom wrote: On

Re: [Xen-devel] [PATCHv6] 01/28] build: import Kbuild/Kconfig from Linux 4.2

On Tue, 2015-12-01 at 04:00 -0700, Jan Beulich wrote: > But not forking doesn't mean importing the whole directory. Some > Makefile adjustments will be necessary anyway, so removing some > of the frontends wouldn't make things worse. We indeed should > avoid editing files we import, but I don't

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

On Tue, 2015-12-01 at 15:03 -0600, Doug Goldstein wrote: > This works, but might have problems in Xen 4.5. If you're using running > on Linux 3.14 or newer then you will have a problem. You need to > backport commit 9c89dc95201ffed5fead17b35754bf9440fdbdc0 if you're using > the C based xenstore

Re: [Xen-devel] Skylake: VT-d and other error messages

On 02/12/15 02:51, Eric Shelton wrote: > ASRock Z170 Extreme 4 with BIOS version 2.30 was motherboard #1 > Gigabyte GA-Z170XP-SLI with BIOS version F5 was motherboard #2 > > As I initially reported, both were reporting the error involving f0:1f.0 > > Not surprisingly, there are no f0:xx.y devices.

Re: [Xen-devel] Build problems with xen 4.7

>>> On 01.12.15 at 19:47, wrote: > On Tue, 1 Dec 2015, Jan Beulich wrote: >> I.e. there must be something different in how make gets invoked or >> the environment set up. > > It happens if CFLAGS is set to anything as a environment variable, eg. > export CFLAGS=" " > make

Re: [Xen-devel] Regression: Xen guest with 5G of RAM on 32bit fail to boot

* Paolo Bonzini (pbonz...@redhat.com) wrote: > > > On 01/12/2015 18:53, Anthony PERARD wrote: > > The problem is in qemu_ram_alloc_internal() where 'size' and 'maxsize' are > > now been truncate to 32bit, due to 'qemu_host_page_size' been an uintptr_t > > in the HOST_PAGE_ALIGN macro. > > Isn't

[Xen-devel] Seeking input for 2016 Advisory Board budget (needed by Friday)

Hi everyone, I am putting together the Advisory Board budget for 2016. Besides items that are operational and spending on a new HW for the Test Lab, are there any items which I should add that help the developer community. Things that have been raised in the past, were * Easier hosting of

Re: [Xen-devel] Skylake: VT-d and other error messages

>>> On 02.12.15 at 03:51, wrote: > ASRock Z170 Extreme 4 with BIOS version 2.30 was motherboard #1 > Gigabyte GA-Z170XP-SLI with BIOS version F5 was motherboard #2 > > As I initially reported, both were reporting the error involving f0:1f.0 > > Not surprisingly, there are no

Re: [Xen-devel] [xen-unstable test] 65141: regressions - FAIL

On 02/12/15 10:52, Jan Beulich wrote: On 02.12.15 at 11:34, wrote: >> On Mon, 2015-11-30 at 05:35 +, Hu, Robert wrote: >> >> Also adding Vt-x maintainers (Kevin and Jun) for their help/input, I'm not >> sure if there is a dedicated nested-vmx maintainer. This

Re: [Xen-devel] xen 4.5.0 rtds scheduler perform poorly with 2vms

> On 2 Dec 2015, at 05:54, Meng Xu wrote: > > Hi Lars and Dario, > > 2015-12-01 4:11 GMT-06:00 Lars Kurth : >> >> I wonder whether we need to add some health warnings and recommended >> background reading to

Re: [Xen-devel] xen 4.5.0 rtds scheduler perform poorly with 2vms

On Tue, 2015-12-01 at 23:54 -0600, Meng Xu wrote: > Hi Lars and Dario, > > 2015-12-01 4:11 GMT-06:00 Lars Kurth : > > > > I wonder whether we need to add some health warnings and recommended > > background reading to http://wiki.xenproject.org/wiki/RTDS-Based-Schedu > >

Re: [Xen-devel] [xen-unstable test] 65141: regressions - FAIL

On Wed, 2015-12-02 at 03:52 -0700, Jan Beulich wrote: > > > > On 02.12.15 at 11:34, wrote: > > On Mon, 2015-11-30 at 05:35 +, Hu, Robert wrote: > > > > Also adding Vt-x maintainers (Kevin and Jun) for their help/input, I'm > > not > > sure if there is a dedicated

Re: [Xen-devel] Hotplugged devices in Xen 4.5 and domain reboot

On Tue, 2015-12-01 at 18:52 +0100, Roger Pau Monné wrote: > El 01/12/15 a les 17.48, Iurii Mykhalskyi ha escrit: > > > Does something like the following work? If not, could you paste the > > > error when running it with -vvv. > > > > > > xl block-attach DomU > > >

[Xen-devel] [xen-4.6-testing test] 65283: regressions - FAIL

flight 65283 xen-4.6-testing real [real] http://logs.test-lab.xenproject.org/osstest/logs/65283/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 16 guest-localmigrate/x10 fail in 65210

Re: [Xen-devel] Regression: Xen guest with 5G of RAM on 32bit fail to boot

On 01/12/2015 18:53, Anthony PERARD wrote: > The problem is in qemu_ram_alloc_internal() where 'size' and 'maxsize' are > now been truncate to 32bit, due to 'qemu_host_page_size' been an uintptr_t > in the HOST_PAGE_ALIGN macro. Isn't it qemu_host_page_mask that causes the problem? This should

Re: [Xen-devel] xen 4.5.0 rtds scheduler perform poorly with 2vms

On Tue, Dec 01, 2015 at 11:54:14PM -0600, Meng Xu wrote: > Hi Lars and Dario, > > 2015-12-01 4:11 GMT-06:00 Lars Kurth : > > > > I wonder whether we need to add some health warnings and recommended > > background reading to

Re: [Xen-devel] [PATCHv6] 01/28] build: import Kbuild/Kconfig from Linux 4.2

On Tue, 2015-12-01 at 14:04 -0600, Doug Goldstein wrote: > On 11/30/15 11:19 AM, Ian Campbell wrote: > > On Mon, 2015-11-30 at 11:00 -0600, Doug Goldstein wrote: > > > Since there is a request to have KEXEC and the UARTs > > > configurable by the user > > > > Who asked for this? > > > > I have

Re: [Xen-devel] [xen-unstable test] 65141: regressions - FAIL

On Mon, 2015-11-30 at 05:35 +, Hu, Robert wrote: Also adding Vt-x maintainers (Kevin and Jun) for their help/input, I'm not sure if there is a dedicated nested-vmx maintainer. This failure has been blocking the xen-unstable push gate for a week now so it really does need looking into. Also

Re: [Xen-devel] [PATCH] xen-pciback: fix up cleanup path when alloc fails

On 26/11/15 20:32, Doug Goldstein wrote: > When allocating a pciback device fails, avoid the possibility of a > use after free. We should not require clearing drvdata for correctness. We should ensure we retain drvdata for as long as it is needed. I note that pcistub_device_release() has:

Re: [Xen-devel] [xen-unstable test] 65141: regressions - FAIL

>>> On 02.12.15 at 11:34, wrote: > On Mon, 2015-11-30 at 05:35 +, Hu, Robert wrote: > > Also adding Vt-x maintainers (Kevin and Jun) for their help/input, I'm not > sure if there is a dedicated nested-vmx maintainer. This failure has been > blocking the xen-unstable

Re: [Xen-devel] [V2 PATCH 1/9] x86/hvm: pkeys, add pkeys support for cpuid handling

>>> On 01.12.15 at 21:03, wrote: > On 27/11/15 09:51, Huaitong Han wrote: >> --- a/xen/arch/x86/hvm/hvm.c >> +++ b/xen/arch/x86/hvm/hvm.c >> @@ -4582,6 +4582,18 @@ void hvm_cpuid(unsigned int input, unsigned int *eax, >> unsigned int *ebx, >> /* Don't expose

Re: [Xen-devel] [V2 PATCH 7/9] x86/hvm: pkeys, add pkeys support for guest_walk_tables

>>> On 27.11.15 at 10:52, wrote: > @@ -90,6 +92,53 @@ static uint32_t set_ad_bits(void *guest_p, void *walk_p, > int set_dirty) > return 0; > } > > +#if GUEST_PAGING_LEVELS >= 4 > +uint32_t leaf_pte_pkeys_check(struct vcpu *vcpu, uint32_t pfec, > +

Re: [Xen-devel] xen 4.5.0 rtds scheduler perform poorly with 2vms

On Wed, 2015-12-02 at 11:01 +, Ian Campbell wrote: > On Tue, 2015-12-01 at 23:54 -0600, Meng Xu wrote: > > > > What do you guys think which type of information we should include? > > I think there is an important distinction between credit2/credit and > RT > schedulers such as arinc/rtds

Re: [Xen-devel] [V2 PATCH 7/9] x86/hvm: pkeys, add pkeys support for guest_walk_tables

>>> On 27.11.15 at 10:52, wrote: > @@ -90,6 +92,53 @@ static uint32_t set_ad_bits(void *guest_p, void *walk_p, > int set_dirty) > return 0; > } > > +#if GUEST_PAGING_LEVELS >= 4 > +uint32_t leaf_pte_pkeys_check(struct vcpu *vcpu, uint32_t pfec, > +

Re: [Xen-devel] [PATCH v2] libxc: try to find last used pfn when migrating

On Wed, Dec 02, 2015 at 08:42:17AM +0100, Juergen Gross wrote: > For migration the last used pfn of a guest is needed to size the > logdirty bitmap and as an upper bound of the page loop. Unfortunately > there are pv-kernels advertising a much higher maximum pfn as they > are really using in order

Re: [Xen-devel] [PATCHv3] 1/3] libxc: prefer using privcmd character device

On Tue, Dec 01, 2015 at 01:27:53PM -0600, Doug Goldstein wrote: > Prefer using the character device over the proc file if the character > device exists. This follows similar conversions of xenbus to avoid > issues with FMODE_ATOMIC_POS added in Linux 3.14 and newer. > > CC: Ian Jackson

Re: [Xen-devel] [PATCH v2] libxc: try to find last used pfn when migrating

On 02/12/15 07:42, Juergen Gross wrote: > diff --git a/tools/libxc/xc_sr_save_x86_hvm.c > b/tools/libxc/xc_sr_save_x86_hvm.c > index cdee774..3c879ed 100644 > --- a/tools/libxc/xc_sr_save_x86_hvm.c > +++ b/tools/libxc/xc_sr_save_x86_hvm.c > @@ -135,6 +135,20 @@ static int

Re: [Xen-devel] [V2 PATCH 7/9] x86/hvm: pkeys, add pkeys support for guest_walk_tables

>>> On 02.12.15 at 09:23, wrote: > On Tue, 2015-12-01 at 20:30 +, Andrew Cooper wrote: >> > +#include >> >> I can see why you need xstate.h, but I why do you need i387.h ? > Use vcpu_save_fpu functions. Which is bogus by itself: That function isn't meant to be used

Re: [Xen-devel] xen 4.5.0 rtds scheduler perform poorly with 2vms

On Wed, 2015-12-02 at 11:03 +, Lars Kurth wrote: > > On 2 Dec 2015, at 05:54, Meng Xu wrote: > > > > Maybe we could add some health warning and add a link to this > > discussion? > > Misconfiguration of the system will usually cause performance > > degradation, even

Re: [Xen-devel] [V2 PATCH 1/9] x86/hvm: pkeys, add pkeys support for cpuid handling

>>> On 27.11.15 at 10:51, wrote: > --- a/tools/libxc/xc_cpuid_x86.c > +++ b/tools/libxc/xc_cpuid_x86.c > @@ -421,9 +421,11 @@ static void xc_cpuid_hvm_policy(xc_interface *xch, > bitmaskof(X86_FEATURE_ADX) | >

Re: [Xen-devel] [V2 PATCH 5/9] x86/hvm: pkeys, add functions to get pkeys value from PTE

>>> On 27.11.15 at 10:51, wrote: > --- a/xen/include/asm-x86/x86_64/page.h > +++ b/xen/include/asm-x86/x86_64/page.h > @@ -134,6 +134,25 @@ typedef l4_pgentry_t root_pgentry_t; > #define get_pte_flags(x) (((int)((x) >> 40) & ~0xFFF) | ((int)(x) & 0xFFF)) > #define

Re: [Xen-devel] [V2 PATCH 9/9] x86/hvm: pkeys, add pkeys support for gva2gfn funcitons

>>> On 27.11.15 at 10:52, wrote: > --- a/xen/arch/x86/hvm/hvm.c > +++ b/xen/arch/x86/hvm/hvm.c > @@ -4304,7 +4304,8 @@ static enum hvm_copy_result __hvm_clear(paddr_t addr, > int size) > p2m_type_t p2mt; > char *p; > int count, todo = size; > -uint32_t

Re: [Xen-devel] [PATCH 1/2] libxc: replace INVALID_P2M_ENTRY by INVALID_PFN

On Tue, Dec 01, 2015 at 06:14:53PM +0100, Juergen Gross wrote: > INVALID_P2M_ENTRY is defined as (xen_pfn_t)-1 and is often used > according to it's type for an invalid pfn. Change the name of the > macro to INVALID_PFN. > > Signed-off-by: Juergen Gross Acked-by: Wei Liu

Re: [Xen-devel] [PATCH 2/2] libxc: do proper return code checking of allocator in domain builder

On Tue, Dec 01, 2015 at 06:14:54PM +0100, Juergen Gross wrote: > Signed-off-by: Juergen Gross Acked-by: Wei Liu ___ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel

Re: [Xen-devel] Regression: Xen guest with 5G of RAM on 32bit fail to boot

On 02/12/2015 11:30, Paolo Bonzini wrote: > diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h > index f9998b9..87a4145 100644 > --- a/include/exec/cpu-all.h > +++ b/include/exec/cpu-all.h > @@ -174,11 +174,10 @@ extern unsigned long reserved_va; > #define TARGET_PAGE_MASK

Re: [Xen-devel] Regression: Xen guest with 5G of RAM on 32bit fail to boot

* Paolo Bonzini (pbonz...@redhat.com) wrote: > > > On 02/12/2015 11:30, Paolo Bonzini wrote: > > diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h > > index f9998b9..87a4145 100644 > > --- a/include/exec/cpu-all.h > > +++ b/include/exec/cpu-all.h > > @@ -174,11 +174,10 @@ extern

Re: [Xen-devel] [V2 PATCH 2/9] x86/hvm: pkeys, add the flag to enable Memory Protection Keys

>>> On 27.11.15 at 10:51, wrote: > @@ -1307,6 +1311,9 @@ void __init noreturn __start_xen(unsigned long mbi_p) > if ( cpu_has_smap ) > set_in_cr4(X86_CR4_SMAP); > > +if ( !opt_pku ) > +setup_clear_cpu_cap(X86_FEATURE_PKU); > + > if (

Re: [Xen-devel] [V2 PATCH 8/9] x86/hvm: pkeys, add xstate support for pkeys

>>> On 02.12.15 at 08:20, wrote: >> Does this even compile? There is already >> >> static void *get_xsave_addr(void *xsave, unsigned int xfeature_idx) >> >> higher in the same file. >> >> That function should be augmented to take a struct xsave_struct >> *xsave, >>

Re: [Xen-devel] Regression: Xen guest with 5G of RAM on 32bit fail to boot

Paolo Bonzini wrote: > On 02/12/2015 11:30, Paolo Bonzini wrote: >> diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h >> index f9998b9..87a4145 100644 >> --- a/include/exec/cpu-all.h >> +++ b/include/exec/cpu-all.h >> @@ -174,11 +174,10 @@ extern unsigned long

[Xen-devel] [PATCH v2] x86: Fixup IRQs when CPUs go down during shutdown

Commit fc0c3fa2ad5c ("x86/IO-APIC: fix setup of Xen internally used IRQs (take 2)") introduced a regression on some hardware where Xen would hang during shutdown, repeating the following message: APIC error on CPU0: 08(08), Receive accept error This appears to be because an interrupt (in this

Re: [Xen-devel] Crash in set_cpu_sibling_map() booting Xen 4.6.0 on Fusion

>>> On 24.11.15 at 21:28, wrote: > RFC. Boot tested on VMware Fusion, and on a 2-socket Xeon server. Mind trying this one instead? Jan --- unstable.orig/xen/arch/x86/mpparse.c +++ unstable/xen/arch/x86/mpparse.c @@ -89,19 +89,14 @@ void __init

Re: [Xen-devel] [xen-unstable test] 65141: regressions - FAIL

On Wed, 2015-12-02 at 10:34 +, Ian Campbell wrote: > [...] > FWIW looking at the different branches in >   > http://logs.test-lab.xenproject.org/osstest/results/history/test-amd64-amd64-qemuu-nested-intel/ > > While xen-unstable has started failing on godello1 xen-4.6-testing does > seem to

Re: [Xen-devel] [PATCH v2] x86: Fixup IRQs when CPUs go down during shutdown

On 02/12/15 13:46, Ross Lagerwall wrote: > @@ -298,6 +299,13 @@ static void stop_this_cpu(void *dummy) > void smp_send_stop(void) > { > int timeout = 10; > +cpumask_t online; > + > +cpumask_clear(); > +cpumask_set_cpu(smp_processor_id(), ); You can avoid this intermediate

[Xen-devel] [PATCH] x86: __{cpu,dev}initdata drop follow-up

While reviewing those patches I noticed a few types that could do with tweaking. Signed-off-by: Jan Beulich --- For the AMD MWAIT change it would certainly be nice to get confirmation on whether just Fam10 doesn't deep-sleep, or whether there's a wider range (I'm pretty sure

Re: [Xen-devel] [PATCH v2 2/2] libxl: implement virDomainInterfaceStats

On 12/02/2015 12:45 AM, Jim Fehlig wrote: > On 11/23/2015 11:57 AM, Joao Martins wrote: >> Introduce support for domainInterfaceStats API call for querying >> network interface statistics. Consequently it also enables the >> use of `virsh domifstat ` command plus >> seeing the interfaces names

Re: [Xen-devel] [PATCH v2 1/2] libxl: rename libxlConsoleCallback

On 12/02/2015 12:08 AM, Jim Fehlig wrote: > On 11/23/2015 11:56 AM, Joao Martins wrote: >> . to a more generic name i.e. libxlDomainStartCallback, >> since it will now cover another case other than the console. >> >> Signed-off-by: Joao Martins >> --- >>

[Xen-devel] [linux-linus test] 65285: regressions - FAIL

flight 65285 linux-linus real [real] http://logs.test-lab.xenproject.org/osstest/logs/65285/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-i386-xl-qemut-winxpsp3 6 xen-boot fail REGR. vs. 59254

Re: [Xen-devel] [PATCH] xen/events/fifo: Consume unprocessed events when a CPU dies

On 30/06/15 13:26, Boris Ostrovsky wrote: > On 06/30/2015 05:51 AM, Ross Lagerwall wrote: >> On 06/29/2015 02:32 PM, Boris Ostrovsky wrote: >>> On 06/29/2015 06:19 AM, Ross Lagerwall wrote: On 06/19/2015 05:06 PM, David Vrabel wrote: > On 19/06/15 17:02, Boris Ostrovsky wrote: >> On

Re: [Xen-devel] [PATCH] xen/events/fifo: Consume unprocessed events when a CPU dies

On 19/06/15 16:15, Ross Lagerwall wrote: > When a CPU is offlined, there may be unprocessed events on a port for > that CPU. If the port is subsequently reused on a different CPU, it > could be in an unexpected state with the link bit set, resulting in > interrupts being missed. Fix this by

Re: [Xen-devel] [PATCH] x86: __{cpu,dev}initdata drop follow-up

On 02/12/15 13:51, Jan Beulich wrote: > While reviewing those patches I noticed a few types that could do with > tweaking. > > Signed-off-by: Jan Beulich Reviewed-by: Andrew Cooper ___ Xen-devel mailing

Re: [Xen-devel] [PATCH v2] x86: Fixup IRQs when CPUs go down during shutdown

>>> On 02.12.15 at 14:46, wrote: > Commit fc0c3fa2ad5c ("x86/IO-APIC: fix setup of Xen internally used IRQs > (take 2)") introduced a regression on some hardware where Xen would hang > during shutdown, repeating the following message: > APIC error on CPU0: 08(08),

Re: [Xen-devel] Log Messages ....

On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel wrote: > Hello All, > > I require logs of the Hypercalls made from Guest to the Hypervisor after the > boot, as xl dmesg provides me with the log messages during the > initialisation. One thing you could look at is xentrace

Re: [Xen-devel] linux 4.4 Regression: 100% cpu usage on idle pv guest under Xen with single vcpu.

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. (hvc_console) vs. (rtc0) > -hvc_open: request_irq failed with rc -16. I have

Re: [Xen-devel] [osstest test] 64958: regressions - trouble: broken/fail/pass

On 11/25/2015 08:32 AM, Ian Campbell wrote: > On Wed, 2015-11-25 at 14:37 +, Ian Campbell wrote: >> 2015-11-21 23:06:44 Z executing ssh ... root@172.16.144.44 virsh >> domxml-from-native xen-xl /etc/xen/debian.jessie.guest.osstest.cfg > >> /etc/xen/debian.jessie.guest.osstest.cfg.xml >>

Re: [Xen-devel] [PATCH] iommu/quirk: disable shared EPT for Sandybridge and earlier processors.

> From: Andrew Cooper [mailto:andrew.coop...@citrix.com] > Sent: Thursday, November 26, 2015 9:56 PM > > On 26/11/15 13:48, Malcolm Crossley wrote: > > On 26/11/15 13:46, Jan Beulich wrote: > > On 25.11.15 at 11:28, wrote: > >>> The problem is that SandyBridge

Re: [Xen-devel] [V2 PATCH 1/9] x86/hvm: pkeys, add pkeys support for cpuid handling

On Wed, 2015-12-02 at 04:06 -0700, Jan Beulich wrote: > > > ) > > > +*ecx &= ~cpufeat_mask(X86_FEATURE_PKU); > > > + > > > +if ( (count == 0) && cpu_has_pku ) > > > +*ecx |= (v->arch.hvm_vcpu.guest_cr[4] & X86_CR4_PKE) > > > ? > > > +

Re: [Xen-devel] [V2 PATCH 8/9] x86/hvm: pkeys, add xstate support for pkeys

On Wed, 2015-12-02 at 04:31 -0700, Jan Beulich wrote: > > > > On 02.12.15 at 08:20, wrote: > > > Does this even compile? There is already > > > > > > static void *get_xsave_addr(void *xsave, unsigned int > > > xfeature_idx) > > > > > > higher in the same file. > > > >

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