<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [HSW] WARNING: CPU: 2 PID: 1 at drivers/iommu/iommu.c:1275 pci_device_group+0x109/0x120" href="https://bugs.freedesktop.org/show_bug.cgi?id=111906#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [HSW] WARNING: CPU: 2 PID: 1 at drivers/iommu/iommu.c:1275 pci_device_group+0x109/0x120" href="https://bugs.freedesktop.org/show_bug.cgi?id=111906">bug 111906</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>[ 2.120681] WARNING: CPU: 2 PID: 1 at drivers/iommu/iommu.c:1275 pci_device_group+0x109/0x120 [ 2.120723] Modules linked in: [ 2.120744] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.4.0-rc1-CI-CI_DRM_7000+ #1 [ 2.120782] Hardware name: Dell Inc. XPS 12-9Q33/XPS 12-9Q33, BIOS A04 12/03/2013 [ 2.120821] RIP: 0010:pci_device_group+0x109/0x120 [ 2.120848] Code: e9 ff ff 48 85 c0 48 89 c5 75 bd 48 8d 74 24 10 4c 89 e7 e8 49 ea ff ff 48 85 c0 48 89 c5 75 a8 e8 fc ee ff ff 48 89 c5 eb 9e <0f> 0b 48 c7 c5 ea ff ff ff eb 93 e8 37 5f a7 ff 0f 1f 80 00 00 00 [ 2.120933] RSP: 0000:ffffc90000037cd0 EFLAGS: 00010202 [ 2.120961] RAX: ffffffff81639810 RBX: ffffffffffffffea RCX: 0000000000000000 [ 2.120996] RDX: 0000000000000000 RSI: 00000000403efd19 RDI: ffff888119999c08 [ 2.121031] RBP: ffff888119999c08 R08: ffff88811a5188f8 R09: 00000000fffffffe [ 2.121066] R10: 00000000ca7d066a R11: 000000002161dc90 R12: ffff888118320a58 [ 2.121100] R13: ffff888119fc1e50 R14: 0000000000000001 R15: ffff888119fc2300 [ 2.121136] FS: 0000000000000000(0000) GS:ffff88811b900000(0000) knlGS:0000000000000000 [ 2.121176] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.121205] CR2: 0000000000000000 CR3: 0000000005210001 CR4: 00000000001606e0 [ 2.121240] Call Trace: [ 2.121264] iommu_group_get_for_dev+0x77/0x210 [ 2.121295] intel_iommu_add_device+0x54/0x1c0 [ 2.121323] iommu_probe_device+0x43/0xc0 [ 2.121350] intel_iommu_init+0x11fb/0x12c9 [ 2.121383] ? set_debug_rodata+0xc/0xc [ 2.121410] ? set_debug_rodata+0xc/0xc [ 2.121434] ? e820__memblock_setup+0x5b/0x5b [ 2.121458] ? pci_iommu_init+0x11/0x3a [ 2.121471] ? rcu_read_lock_sched_held+0x4d/0x80 [ 2.121471] pci_iommu_init+0x11/0x3a [ 2.121471] do_one_initcall+0x58/0x2ff [ 2.121471] ? set_debug_rodata+0xc/0xc [ 2.121471] ? rcu_read_lock_sched_held+0x4d/0x80 [ 2.121471] kernel_init_freeable+0x137/0x1c7 [ 2.121471] ? rest_init+0x250/0x250 [ 2.121471] kernel_init+0x5/0x100 [ 2.121471] ret_from_fork+0x3a/0x50 [ 2.121471] irq event stamp: 1252438 [ 2.121471] hardirqs last enabled at (1252437): [<ffffffff8123f4ed>] __slab_alloc.isra.84.constprop.89+0x4d/0x70 [ 2.121471] hardirqs last disabled at (1252438): [<ffffffff81001bba>] trace_hardirqs_off_thunk+0x1a/0x20 [ 2.121471] softirqs last enabled at (1252382): [<ffffffff81c00385>] __do_softirq+0x385/0x47f [ 2.121471] softirqs last disabled at (1252375): [<ffffffff810b7f4a>] irq_exit+0xba/0xc0 [ 2.121471] ---[ end trace 610717c918cf08f3 ]--- [ 2.121974] DMAR: ACPI name space devices didn't probe correctly</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>