Quoting Lu Baolu (2019-06-22 09:46:36) > Hi, > > On 6/22/19 4:09 PM, Chris Wilson wrote: > > Quoting Lu Baolu (2019-06-22 07:49:22) > >> Hi Chris, > >> > >> Thanks for the test and report. > >> > >> On 6/21/19 9:27 PM, Chris Wilson wrote: > >>> We see a use-after-free in our CI about 20% of the time on a Skylake > >>> iommu testing host, present since enabling that host. Sadly, it has not > >>> presented itself while running under KASAN. > >>> > >>> <4> [302.391799] general protection fault: 0000 [#1] PREEMPT SMP PTI > >>> <4> [302.391803] CPU: 7 PID: 4854 Comm: i915_selftest Tainted: G U > >>> 5.2.0-rc5-CI-CI_DRM_6320+ #1 > >> > >> Since it's CI-CI_DRM_6320+, what kind of patches have you applied on top > >> of 5.2.0-rc5? > > > > $ git diff --stat v5.2-rc5..intel/CI_DRM_6320 > > ... > > 1383 files changed, 62481 insertions(+), 35301 deletions(-) > > > > The usual drivers/gpu churn, and nothing inside drivers/iommu. > > Can this be reproduced with any bare mainline rc's? So that people can > reproduce and debug it.
Yes. The earlier reports are on code that is all in 5.0. -Chris _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
