http://bugzilla.opensuse.org/show_bug.cgi?id=1184585 Bug ID: 1184585 Summary: 5.3.18-lp152.69-default causes SEGV in intel-iommu Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.2 Hardware: Other OS: openSUSE Leap 15.2 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: mischa.salle@gmail.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 848228 --> http://bugzilla.opensuse.org/attachment.cgi?id=848228&action=edit SEGV stacktrace from syslog On my Dell XPS 15 9560, when running with kernel cmdline options acpi_rev_override=1 intel_iommu=on,igfx_off mitigations=auto the new 5.3.18-lp152.69-default causes a SEGV in intel-iommu: kernel BUG at ../drivers/iommu/intel-iommu.c:1389 This prevents (among other things) my wifi from working (Qualcomm Atheros QCA6174 802.11ac). I've attached the relevant part of the syslog. Disabling intel_iommu, by running with acpi_rev_override=1 intel_iommu=off,igfx_off mitigations=auto prevents the SEGV (as expected since it disables the iommu). The previous kernel, 5.3.18-lp152.66-default, still works fine with the now-broken intel_iommu=on setting. -- You are receiving this mail because: You are the assignee for the bug.