Additional info: reporter: libreport-2.1.9 WARNING: CPU: 5 PID: 1 at drivers/pci/search.c:46 pci_find_upstream_pcie_bridge+0x83/0x90() Modules linked in: CPU: 5 PID: 1 Comm: swapper/0 Not tainted 3.11.6-200.fc19.x86_64.debug #1 Hardware name: /DZ77BH-55K, BIOS BHZ7710H.86A.0100.2013.0517.0942 05/17/2013 0000000000000009 ffff880802283cd0 ffffffff81728ae0 0000000000000000 ffff880802283d08 ffffffff8107458d ffff8808014c6848 ffff8808014c67b0 ffff8808014c6848 ffffffff81cda3c0 ffff88080d415550 ffff880802283d18 Call Trace: [<ffffffff81728ae0>] dump_stack+0x54/0x74 [<ffffffff8107458d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8107466a>] warn_slowpath_null+0x1a/0x20 [<ffffffff813a5623>] pci_find_upstream_pcie_bridge+0x83/0x90 [<ffffffff815c716d>] intel_iommu_add_device+0x4d/0x220 [<ffffffff815be120>] ? bus_set_iommu+0x50/0x50 [<ffffffff815be14a>] add_iommu_group+0x2a/0x50 [<ffffffff81486efb>] bus_for_each_dev+0x6b/0xb0 [<ffffffff815be118>] bus_set_iommu+0x48/0x50 [<ffffffff81f48715>] intel_iommu_init+0xab3/0xbab [<ffffffff81eff125>] ? iommu_setup+0x258/0x258 [<ffffffff81eff125>] ? iommu_setup+0x258/0x258 [<ffffffff81eff14d>] pci_iommu_init+0x28/0x52 [<ffffffff810020fa>] do_one_initcall+0xfa/0x1b0 [<ffffffff8109d9e5>] ? parse_args+0x225/0x400 [<ffffffff81ef60ad>] kernel_init_freeable+0x173/0x1fb [<ffffffff81ef5898>] ? do_early_param+0x88/0x88 [<ffffffff8171cfe0>] ? rest_init+0x150/0x150 [<ffffffff8171cfee>] kernel_init+0xe/0x190 [<ffffffff8173bd6c>] ret_from_fork+0x7c/0xb0 [<ffffffff8171cfe0>] ? rest_init+0x150/0x150
Created attachment 818605 [details] File: dmesg
It's still happening with 3.11.7-200.fc19.x86_64.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 19 kernel bugs. Fedora 19 has now been rebased to 3.12.6-200.fc19. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 20, and are still experiencing this issue, please change the version to Fedora 20. If you experience different issues, please open a new bug report for those.
*** This bug has been marked as a duplicate of bug 878273 ***