On Thu, Oct 17, 2019 at 10:31:12PM +0200, Niclas Zeising wrote: > On 2019-10-17 21:53, markj_at_freebsd.org wrote: > > On Thu, Oct 17, 2019 at 03:03:51PM +0200, Niclas Zeising wrote: > >> On 2019-10-16 18:57, Neel Chauhan wrote: > >>> While drm-current-kmod worked for a little while, it broke with r353645. > >>> > >>> https://i.imgur.com/Q5nYZf2.jpg > >>> > >>> I'm using the same HP Spectre that I used earlier (where it worked and > >>> where it panicked). > >>> > >> > >> That commit looks unrelated, it touches the wbwd and superio drivers, > >> nothing else. Any chance you can bisect exactly which revision that > >> caused the new issues? > > > > I believe it was the recent work on the vm page busy state, r353539 > > specifically. This patch should fix it; we don't yet have a > > __FreeBSD_version number bump on which to gate the patch. > > > > diff --git a/linuxkpi/gplv2/src/linux_page.c b/linuxkpi/gplv2/src/linux_page.c > > index e2b85c45c..060ae85ed 100644 > > --- a/linuxkpi/gplv2/src/linux_page.c > > +++ b/linuxkpi/gplv2/src/linux_page.c > > _at__at_ -239,7 +239,7 _at__at_ retry: > > page = vm_page_lookup(devobj, i); > > if (page == NULL) > > continue; > > - if (vm_page_sleep_if_busy(page, "linuxkpi")) > > + if (!vm_page_busy_acquire(page, VM_ALLOC_WAITFAIL)) > > goto retry; > > cdev_pager_free_page(devobj, page); > > } > > Hi! > Hopefully someone can confirm that this patch to drm-current-kmod or > drm-devel-kmod fixes the issue. I won't be able to work on this before > the weekend at the earliest, I'm afraid. > Mark, is it possible to get a belated version bump for this fix, and > what changed to require it? I committed the bump and verified the patch on amdgpu. Here are some PRs for the drivers: https://github.com/FreeBSDDesktop/kms-drm/pull/180 https://github.com/FreeBSDDesktop/kms-drm/pull/181Received on Thu Oct 17 2019 - 19:05:17 UTC
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