On 10/17/19 10:31 PM, 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? Built, rebooting ... Will hopefully check back in soon. /EirikReceived on Thu Oct 17 2019 - 19:29:40 UTC
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