On Thu, Aug 04, 2016 at 02:08:46PM -0400, Mike Marshall wrote: > [ 1.291797] [drm] Initialized drm 1.1.0 20060810 > [ 1.352761] [TTM] Zone kernel: Available graphics memory: 502128 kiB > [ 1.353248] [TTM] Initializing pool allocator > [ 1.353660] [TTM] Initializing DMA pool allocator > [ 1.355491] BUG: unable to handle kernel NULL pointer dereference > at 0000000000000018 > [ 1.356038] IP: [<ffffffffa00c9875>] drm_pick_crtcs+0x125/0x280 > [drm_kms_helper] > [ 1.356038] PGD 0 > [ 1.356038] Oops: 0000 [#1] SMP > [ 1.356038] Modules linked in: cirrus(+) drm_kms_helper ttm drm > i2c_core ata_generic pata_acpi > [ 1.356038] CPU: 0 PID: 181 Comm: systemd-udevd Not tainted > 4.7.0-00810-gc1ece76 #9 > [ 1.356038] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007 > [ 1.356038] task: ffff880036f40000 task.stack: ffff880036fc0000 > [ 1.356038] RIP: 0010:[<ffffffffa00c9875>] [<ffffffffa00c9875>] > drm_pick_crtcs+0x125/0x280 [drm_kms_helper] > [ 1.356038] RSP: 0018:ffff880036fc3898 EFLAGS: 00010217 > [ 1.356038] RAX: ffffffffa00208f0 RBX: 0000000000000000 RCX: 0000000000001000 > [ 1.356038] RDX: 0000000000000000 RSI: ffffffff81c574c0 RDI: ffff880037172800 > [ 1.356038] RBP: ffff880036fc3900 R08: 000000000001cc90 R09: ffff880036d829f8 > [ 1.356038] R10: ffff88003e001c80 R11: ffff880036d829d8 R12: ffff880037172400 > [ 1.356038] R13: 0000000000001000 R14: ffff880037172800 R15: ffff880036d829d0 > [ 1.356038] FS: 00007f907d15d880(0000) GS:ffff88003fc00000(0000) > knlGS:0000000000000000 > [ 1.356038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 1.356038] CR2: 0000000000000018 CR3: 0000000036f6d000 CR4: 00000000000006f0 > [ 1.356038] Stack: > [ 1.356038] 0000000000000008 ffff880036d829e0 ffff880036d829d8 > 0000000000000001 > [ 1.356038] 0000000000000000 0000100000000003 ffff880036d829e0 > ffff880036d829f8 > [ 1.356038] 0000000000000001 ffff880037172400 0000000000000001 > ffff880036d829d0 > [ 1.356038] Call Trace: > [ 1.356038] [<ffffffffa00ca199>] drm_setup_crtcs+0x339/0xa00 > [drm_kms_helper] > [ 1.356038] [<ffffffff810f78d6>] ? mark_held_locks+0x66/0x90 > [ 1.356038] [<ffffffff817f2149>] ? __mutex_unlock_slowpath+0xd9/0x1a0 > [ 1.356038] [<ffffffffa00caa91>] > drm_fb_helper_initial_config+0x81/0x3a8 [drm_kms_helper] > [ 1.356038] [<ffffffffa00475c6>] ? drm_modeset_unlock_all+0x66/0xc0 [drm] > [ 1.356038] [<ffffffffa0021df0>] cirrus_fbdev_init+0xa0/0xb0 [cirrus] > [ 1.356038] [<ffffffffa002148b>] cirrus_modeset_init+0x18b/0x1e0 [cirrus] > [ 1.356038] [<ffffffffa002042c>] cirrus_driver_load+0xbc/0x100 [cirrus] > [ 1.356038] [<ffffffffa0031b29>] drm_dev_register+0xa9/0xd0 [drm] This is unlikely to be cirrus specific, but fallout from the drm_dev_register reorganisation. Could you bisect down into that merge? -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
