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...'__build' not remade because of errors. make[1]: *** [prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 8 real 4 user 4 sys 96.33% cpu make prepare vim +10 include/linux/page_reporting.h b1b0d638e6f93b Alexander Duyck 2019-09-06 8 b1b0d638e6f93b Alexander Duyck 2019-09-06 @9 #if defined(CONFIG_HUGETLB_PAGE) && HUGETLB_PAGE_ORDER < MAX_ORDER b1b0d638e6f93b Alexander Duyck 2019-09-06 @10 #define PAGE_REPORTING_MIN_ORDER HUGETLB_PAGE_ORDER b1b0d638e6f93b Alexander Duyck 2019-09-06 11 #else b1b0d...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> If we have free page hinting or page reporting enabled we should disable it if the pages are poisoned or initialized on free and we cannot notify the hypervisor. Fixes: 5d757c8d518d ("virtio-balloon: add support for providing free page reports to...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> If we have free page hinting or page reporting enabled we should disable it if the pages are poisoned or initialized on free and we cannot notify the hypervisor. Fixes: 5d757c8d518d ("virtio-balloon: add support for providing free page reports to...

...lowing up. I'm just wondering if there is some list I missed as I am assuming the maintainers and lists I contacted here are correct? It looks like we are at RC7 now so I am worried this won't make it in before LInus releases 5.7. Thanks. - Alex On Fri, May 15, 2020 at 10:02 AM Alexander Duyck <alexander.duyck at gmail.com> wrote: > > Just following up. It has been a week since I submitted this. I was > hoping we could get it in for 5.7 since this affects free page > reporting which will be introduced with that kernel release. > > Thanks. > > - Alex > &gt...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> We should disable free page reporting if page poisoning is enabled but we cannot report it via the balloon interface. This way we can avoid the possibility of corrupting guest memory. Normally the page poisoning feature should always be present when fre...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> We should disable free page reporting if page poisoning is enabled but we cannot report it via the balloon interface. This way we can avoid the possibility of corrupting guest memory. Normally the page poisoning feature should always be present when fre...

On Thu, Apr 16, 2020 at 3:13 PM Michael S. Tsirkin <mst at redhat.com> wrote: > > On Thu, Apr 16, 2020 at 12:30:38PM -0700, Alexander Duyck wrote: > > From: Alexander Duyck <alexander.h.duyck at linux.intel.com> > > > > If we have free page hinting or page reporting enabled we should disable it > > if the pages are poisoned or initialized on free and we cannot notify the > > hypervisor. > > &gt...

On 17.04.20 08:28, Michael S. Tsirkin wrote: > On Thu, Apr 16, 2020 at 04:52:42PM -0700, Alexander Duyck wrote: >> On Thu, Apr 16, 2020 at 3:13 PM Michael S. Tsirkin <mst at redhat.com> wrote: >>> >>> On Thu, Apr 16, 2020 at 12:30:38PM -0700, Alexander Duyck wrote: >>>> From: Alexander Duyck <alexander.h.duyck at linux.intel.com> >>>> >&gt...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> We should disable free page reporting if page poisoning is enabled in the kernel but we cannot report it via the balloon interface. This way we can avoid the possibility of corrupting guest memory. Normally the page poison reporting feature should alway...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> We should disable free page reporting if page poisoning is enabled in the kernel but we cannot report it via the balloon interface. This way we can avoid the possibility of corrupting guest memory. Normally the page poison reporting feature should alway...

...ion we can can use dma_wmb/rmb which for most architectures should be equal to or slightly more strict than smp_wmb/rmb. The advantage to this is that these barriers are available to uniprocessor builds as well so the performance should improve under such a configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck at redhat.com> --- include/linux/virtio_ring.h | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index 67e06fe18c03..8e50888a6d59 100644 --- a/include/linux/virtio_ring.h...

...ion we can can use dma_wmb/rmb which for most architectures should be equal to or slightly more strict than smp_wmb/rmb. The advantage to this is that these barriers are available to uniprocessor builds as well so the performance should improve under such a configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck at redhat.com> --- include/linux/virtio_ring.h | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index 67e06fe18c03..8e50888a6d59 100644 --- a/include/linux/virtio_ring.h...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> It can be confusing to have multiple features within the same driver that are using the same verbage. As such this patch is creating a union of free_page_report_cmd_id with free_page_hint_cmd_id so that we can clean-up the userspace code a bit in terms...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> It can be confusing to have multiple features within the same driver that are using the same verbage. As such this patch is creating a union of free_page_report_cmd_id with free_page_hint_cmd_id so that we can clean-up the userspace code a bit in terms...

On Mon, Apr 27, 2020 at 1:08 AM David Hildenbrand <david at redhat.com> wrote: > > On 24.04.20 18:24, Alexander Duyck wrote: > > From: Alexander Duyck <alexander.h.duyck at linux.intel.com> > > > > We should disable free page reporting if page poisoning is enabled in the > > kernel but we cannot report it via the balloon interface. This way we can > > avoid the possibility of co...

On Mon, Apr 27, 2020 at 1:08 AM David Hildenbrand <david at redhat.com> wrote: > > On 24.04.20 18:24, Alexander Duyck wrote: > > From: Alexander Duyck <alexander.h.duyck at linux.intel.com> > > > > We should disable free page reporting if page poisoning is enabled in the > > kernel but we cannot report it via the balloon interface. This way we can > > avoid the possibility of co...

From: Alexander Duyck <alexander.h.duyck at linux.intel.com> It can be confusing to have multiple features within the same driver that are using the same verbage. As such this patch is creating a union of free_page_report_cmd_id with free_page_hint_cmd_id so that we can clean-up the userspace code a bit in terms...

On 04/08/2015 01:42 AM, Michael S. Tsirkin wrote: > On Tue, Apr 07, 2015 at 05:47:42PM -0700, Alexander Duyck wrote: >> This change makes it so that instead of using smp_wmb/rmb which varies >> depending on the kernel configuration we can can use dma_wmb/rmb which for >> most architectures should be equal to or slightly more strict than >> smp_wmb/rmb. >> >> The advantag...

On 04/08/2015 01:42 AM, Michael S. Tsirkin wrote: > On Tue, Apr 07, 2015 at 05:47:42PM -0700, Alexander Duyck wrote: >> This change makes it so that instead of using smp_wmb/rmb which varies >> depending on the kernel configuration we can can use dma_wmb/rmb which for >> most architectures should be equal to or slightly more strict than >> smp_wmb/rmb. >> >> The advantag...

Just following up. It has been a week since I submitted this. I was hoping we could get it in for 5.7 since this affects free page reporting which will be introduced with that kernel release. Thanks. - Alex On Fri, May 8, 2020 at 10:40 AM Alexander Duyck <alexander.duyck at gmail.com> wrote: > > From: Alexander Duyck <alexander.h.duyck at linux.intel.com> > > We should disable free page reporting if page poisoning is enabled but we > cannot report it via the balloon interface. This way we can avoid the > possibility of...