On Mon, Oct 07, 2024 at 12:20:01PM -0500, Bjorn Helgaas wrote: > On Fri, Oct 04, 2024 at 07:55:29AM +0200, Marcin Mirosław wrote: > > W dniu 03.10.2024 o 23:39, Bjorn Helgaas pisze: > > > On Thu, Oct 03, 2024 at 08:15:16PM +0000, bugzilla-daemon@xxxxxxxxxx wrote: > > > > https://bugzilla.kernel.org/show_bug.cgi?id=219349 > > > > > > > > Summary: RIP: 0010:pci_for_each_dma_alias > > > > (./include/linux/pci.h:692 drivers/pci/search.c:41) > > > > Kernel Version: 6.12.0-rc1 8c245fe7dde3 > > > > Regression: Yes > > > > > > > > Created attachment 306959 > > > > --> https://bugzilla.kernel.org/attachment.cgi?id=306959&action=edit > > > > lspci -vv > > > > > > > > Hello, > > > > I see BUG: kernel NULL pointer dereference using kernel 6.12.0-rc1 (actually at > > > > 8c245fe7dde3 but don't know what is first bad commit). > > > > > > Thanks very much for this report! You marked this as a regression; > > > Marcin, do you know the most recent kernel where you did not see this > > > issue? > > > > Kernel 6.11 works correctly, I didn't narrow suspect commit yet. > > Update from the bugzilla: > > Marcin bisected the problem to 2031c469f816 ("iommu/vt-d: Add support > for static identity domain") and verified that reverting that commit > from v6.12-rc2 avoids the problem. #regzbot introduced: 2031c469f816 ("iommu/vt-d: Add support for static identity domain")
