On Saturday 28 June 2014 15:28:22 Ed Tomlinson wrote: Resend without html krud which causes list to bounce the message.
> Hi > > This commit ( a4de05268e674e8ed31df6348269e22d6c6a1803 ) hangs my boot with > 3.16-git. Reverting it lets the boot proceed. > > I have an i7 with a built-in i915 and an pcie r7 260x. The R7 is the primary > console. The i915 is initialized > but does not have a physical display attached. > > With the patch applied the boot stops at the messages: > > [drm] Memory usable by graphics device = 2048M > [drm] Replacing VGA console driver > > and I need to interrupt or power off the box to get it back. > > (I did not notice messages about the R7 but they could have easily been > missed - this box does not have a serial console) > > Without the patch I get: > > Jun 28 14:53:54 localhost kernel: [ 2.075351] e1000e: Intel(R) PRO/1000 > Network Driver - 2.3.2-k > Jun 28 14:53:54 localhost kernel: [ 2.075796] [drm] Initialized drm 1.1.0 > 20060810 > Jun 28 14:53:54 localhost kernel: [ 2.075958] microcode: CPU0 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077289] microcode: CPU1 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077299] microcode: CPU2 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077307] microcode: CPU3 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077315] microcode: CPU4 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077325] microcode: CPU5 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077335] microcode: CPU6 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077342] microcode: CPU7 sig=0x306c3, > pf=0x2, revision=0x17 > Jun 28 14:53:54 localhost kernel: [ 2.077378] microcode: Microcode Update > Driver: v2.00 <tigran at aivazian.fsnet.co.uk>, Peter Oruba > Jun 28 14:53:54 localhost kernel: [ 2.079726] input: PC Speaker as > /devices/platform/pcspkr/input/input4 > Jun 28 14:53:54 localhost kernel: [ 2.083930] e1000e: Copyright(c) 1999 - > 2014 Intel Corporation. > Jun 28 14:53:54 localhost kernel: [ 2.084787] ACPI Warning: SystemIO range > 0x000000000000f040-0x000000000000f05f conflicts with OpRegion > 0x000000000000f040-0x000000000000f04f (\_SB_.PCI0.SBUS.SMBI) > (20140424/utaddress-258) > Jun 28 14:53:54 localhost kernel: [ 2.084788] ACPI: If an ACPI driver is > available for this device, you should use it instead of the native driver > Jun 28 14:53:54 localhost kernel: [ 2.084894] e1000e 0000:00:19.0: > Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode > Jun 28 14:53:54 localhost kernel: [ 2.084905] e1000e 0000:00:19.0: irq 44 > for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.096721] iTCO_vendor_support: > vendor-support=0 > Jun 28 14:53:54 localhost kernel: [ 2.096780] AVX2 version of gcm_enc/dec > engaged. > Jun 28 14:53:54 localhost kernel: [ 2.098512] iTCO_wdt: Intel TCO WatchDog > Timer Driver v1.11 > Jun 28 14:53:54 localhost kernel: [ 2.099042] iTCO_wdt: Found a Lynx Point > TCO device (Version=2, TCOBASE=0x1860) > Jun 28 14:53:54 localhost kernel: [ 2.099561] iTCO_wdt: initialized. > heartbeat=30 sec (nowayout=0) > Jun 28 14:53:54 localhost kernel: [ 2.100401] [drm] radeon kernel > modesetting enabled. > Jun 28 14:53:54 localhost kernel: [ 2.100918] checking generic (e0000000 > 300000) vs hw (e0000000 10000000) > Jun 28 14:53:54 localhost kernel: [ 2.100919] fb: switching to radeondrmfb > from simple > Jun 28 14:53:54 localhost kernel: [ 2.101372] Console: switching to colour > dummy device 80x25 > Jun 28 14:53:54 localhost kernel: [ 2.101527] [drm] initializing kernel > modesetting (BONAIRE 0x1002:0x6658 0x174B:0xE253). > Jun 28 14:53:54 localhost kernel: [ 2.101534] [drm] register mmio base: > 0xF0800000 > Jun 28 14:53:54 localhost kernel: [ 2.101535] [drm] register mmio size: > 262144 > Jun 28 14:53:54 localhost kernel: [ 2.101540] [drm] doorbell mmio base: > 0xF0000000 > Jun 28 14:53:54 localhost kernel: [ 2.101541] [drm] doorbell mmio size: > 8388608 > Jun 28 14:53:54 localhost kernel: [ 2.101579] ATOM BIOS: Bonaire > Jun 28 14:53:54 localhost kernel: [ 2.101627] radeon 0000:01:00.0: VRAM: > 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used) > Jun 28 14:53:54 localhost kernel: [ 2.101629] radeon 0000:01:00.0: GTT: > 1024M 0x0000000080000000 - 0x00000000BFFFFFFF > Jun 28 14:53:54 localhost kernel: [ 2.101630] [drm] Detected VRAM > RAM=2048M, BAR=256M > Jun 28 14:53:54 localhost kernel: [ 2.101631] [drm] RAM width 128bits DDR > Jun 28 14:53:54 localhost kernel: [ 2.101659] [TTM] Zone kernel: > Available graphics memory: 8145364 kiB > Jun 28 14:53:54 localhost kernel: [ 2.101660] [TTM] Zone dma32: > Available graphics memory: 2097152 kiB > Jun 28 14:53:54 localhost kernel: [ 2.101662] [TTM] Initializing pool > allocator > Jun 28 14:53:54 localhost kernel: [ 2.101664] [TTM] Initializing DMA pool > allocator > Jun 28 14:53:54 localhost kernel: [ 2.101674] [drm] radeon: 2048M of VRAM > memory ready > Jun 28 14:53:54 localhost kernel: [ 2.101675] [drm] radeon: 1024M of GTT > memory ready. > Jun 28 14:53:54 localhost kernel: [ 2.101681] [drm] Loading BONAIRE > Microcode > Jun 28 14:53:54 localhost kernel: [ 2.109479] [drm] > radeon/BONAIRE_mc2.bin: 31792 bytes > Jun 28 14:53:54 localhost kernel: [ 2.110510] [drm] Internal thermal > controller with fan control > Jun 28 14:53:54 localhost kernel: [ 2.110648] [drm] probing gen 2 caps for > device 8086:c01 = 261ad03/e > Jun 28 14:53:54 localhost kernel: [ 2.118508] [drm] radeon: dpm initialized > Jun 28 14:53:54 localhost kernel: [ 2.122133] [drm] Found VCE > firmware/feedback version 40.2.2 / 15! > Jun 28 14:53:54 localhost kernel: [ 2.122140] [drm] GART: num cpu pages > 262144, num gpu pages 262144 > Jun 28 14:53:54 localhost kernel: [ 2.122540] [drm] probing gen 2 caps for > device 8086:c01 = 261ad03/e > Jun 28 14:53:54 localhost kernel: [ 2.122544] [drm] PCIE gen 3 link speeds > already enabled > Jun 28 14:53:54 localhost kernel: [ 2.126118] Adding 5779452k swap on > /dev/sdc2. Priority:-1 extents:1 across:5779452k FS > Jun 28 14:53:54 localhost kernel: [ 2.133031] EXT4-fs (sda2): mounted > filesystem with ordered data mode. Opts: discard > Jun 28 14:53:54 localhost kernel: [ 2.136552] [drm] PCIE GART of 1024M > enabled (table at 0x000000000078B000). > Jun 28 14:53:54 localhost kernel: [ 2.136670] radeon 0000:01:00.0: WB > enabled > Jun 28 14:53:54 localhost kernel: [ 2.136697] radeon 0000:01:00.0: fence > driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr > 0xffff8802683e6c00 > Jun 28 14:53:54 localhost kernel: [ 2.136699] radeon 0000:01:00.0: fence > driver on ring 1 use gpu addr 0x0000000080000c04 and cpu addr > 0xffff8802683e6c04 > Jun 28 14:53:54 localhost kernel: [ 2.136701] radeon 0000:01:00.0: fence > driver on ring 2 use gpu addr 0x0000000080000c08 and cpu addr > 0xffff8802683e6c08 > Jun 28 14:53:54 localhost kernel: [ 2.136703] radeon 0000:01:00.0: fence > driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr > 0xffff8802683e6c0c > Jun 28 14:53:54 localhost kernel: [ 2.136705] radeon 0000:01:00.0: fence > driver on ring 4 use gpu addr 0x0000000080000c10 and cpu addr > 0xffff8802683e6c10 > Jun 28 14:53:54 localhost kernel: [ 2.137230] radeon 0000:01:00.0: fence > driver on ring 5 use gpu addr 0x0000000000076c98 and cpu addr > 0xffffc90007936c98 > Jun 28 14:53:54 localhost kernel: [ 2.137293] radeon 0000:01:00.0: fence > driver on ring 6 use gpu addr 0x0000000080000c18 and cpu addr > 0xffff8802683e6c18 > Jun 28 14:53:54 localhost kernel: [ 2.137296] radeon 0000:01:00.0: fence > driver on ring 7 use gpu addr 0x0000000080000c1c and cpu addr > 0xffff8802683e6c1c > Jun 28 14:53:54 localhost kernel: [ 2.137298] [drm] Supports vblank > timestamp caching Rev 2 (21.10.2013). > Jun 28 14:53:54 localhost kernel: [ 2.137299] [drm] Driver supports > precise vblank timestamp query. > Jun 28 14:53:54 localhost kernel: [ 2.137325] radeon 0000:01:00.0: irq 45 > for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.137331] radeon 0000:01:00.0: radeon: > using MSI. > Jun 28 14:53:54 localhost kernel: [ 2.137357] [drm] radeon: irq > initialized. > Jun 28 14:53:54 localhost kernel: [ 2.139870] [drm] ring test on 0 > succeeded in 3 usecs > Jun 28 14:53:54 localhost kernel: [ 2.139938] [drm] ring test on 1 > succeeded in 3 usecs > Jun 28 14:53:54 localhost kernel: [ 2.139950] [drm] ring test on 2 > succeeded in 3 usecs > Jun 28 14:53:54 localhost kernel: [ 2.140110] [drm] ring test on 3 > succeeded in 2 usecs > Jun 28 14:53:54 localhost kernel: [ 2.140116] [drm] ring test on 4 > succeeded in 1 usecs > Jun 28 14:53:54 localhost kernel: [ 2.142659] Adding 5779452k swap on > /dev/sdb2. Priority:-2 extents:1 across:5779452k FS > Jun 28 14:53:54 localhost kernel: [ 2.152066] usb 1-7: new full-speed USB > device number 6 using xhci_hcd > Jun 28 14:53:54 localhost kernel: [ 2.185418] raid6: sse2x1 13222 MB/s > Jun 28 14:53:54 localhost kernel: [ 2.196219] [drm] ring test on 5 > succeeded in 1 usecs > Jun 28 14:53:54 localhost kernel: [ 2.216257] [drm] UVD initialized > successfully. > Jun 28 14:53:54 localhost kernel: [ 2.242145] raid6: sse2x2 17003 MB/s > Jun 28 14:53:54 localhost kernel: [ 2.259077] e1000e 0000:00:19.0 eth0: > registered PHC clock > Jun 28 14:53:54 localhost kernel: [ 2.259080] e1000e 0000:00:19.0 eth0: > (PCI Express:2.5GT/s:Width x1) bc:5f:f4:fc:fa:91 > Jun 28 14:53:54 localhost kernel: [ 2.259081] e1000e 0000:00:19.0 eth0: > Intel(R) PRO/1000 Network Connection > Jun 28 14:53:54 localhost kernel: [ 2.259119] e1000e 0000:00:19.0 eth0: > MAC: 11, PHY: 12, PBA No: FFFFFF-0FF > Jun 28 14:53:54 localhost kernel: [ 2.262208] snd_hda_intel 0000:00:1b.0: > irq 46 for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.265424] nct6775: Found NCT6776D/F or > compatible chip at 0x2e:0x290 > Jun 28 14:53:54 localhost kernel: [ 2.286592] sound hdaudioC0D0: ALC1150: > SKU not ready 0x00000000 > Jun 28 14:53:54 localhost kernel: [ 2.286961] sound hdaudioC0D0: > autoconfig: line_outs=3 (0x14/0x15/0x16/0x0/0x0) type:line > Jun 28 14:53:54 localhost kernel: [ 2.286963] sound hdaudioC0D0: > speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) > Jun 28 14:53:54 localhost kernel: [ 2.286965] sound hdaudioC0D0: > hp_outs=1 (0x1b/0x0/0x0/0x0/0x0) > Jun 28 14:53:54 localhost kernel: [ 2.286966] sound hdaudioC0D0: mono: > mono_out=0x0 > Jun 28 14:53:54 localhost kernel: [ 2.286967] sound hdaudioC0D0: > dig-out=0x1e/0x0 > Jun 28 14:53:54 localhost kernel: [ 2.286968] sound hdaudioC0D0: inputs: > Jun 28 14:53:54 localhost kernel: [ 2.286970] sound hdaudioC0D0: > Front Mic=0x19 > Jun 28 14:53:54 localhost kernel: [ 2.286971] sound hdaudioC0D0: Rear > Mic=0x18 > Jun 28 14:53:54 localhost kernel: [ 2.286972] sound hdaudioC0D0: > Line=0x1a > Jun 28 14:53:54 localhost kernel: [ 2.297632] input: HDA Digital PCBeep as > /devices/pci0000:00/0000:00:1b.0/sound/card0/hdaudioC0D0/input5 > Jun 28 14:53:54 localhost kernel: [ 2.297798] input: HDA Intel PCH Front > Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6 > Jun 28 14:53:54 localhost kernel: [ 2.297835] input: HDA Intel PCH Rear > Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7 > Jun 28 14:53:54 localhost kernel: [ 2.297869] input: HDA Intel PCH Line as > /devices/pci0000:00/0000:00:1b.0/sound/card0/input8 > Jun 28 14:53:54 localhost kernel: [ 2.297905] input: HDA Intel PCH Line > Out Front as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9 > Jun 28 14:53:54 localhost kernel: [ 2.297940] input: HDA Intel PCH Line > Out Surround as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10 > Jun 28 14:53:54 localhost kernel: [ 2.297973] input: HDA Intel PCH Line > Out CLFE as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11 > Jun 28 14:53:54 localhost kernel: [ 2.298005] input: HDA Intel PCH Front > Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12 > Jun 28 14:53:54 localhost kernel: [ 2.298888] raid6: sse2x4 18101 MB/s > Jun 28 14:53:54 localhost kernel: [ 2.306396] zram: unknown parameter > '#32' ignored > Jun 28 14:53:54 localhost kernel: [ 2.306399] zram: unknown parameter 'is' > ignored > Jun 28 14:53:54 localhost kernel: [ 2.306400] zram: unknown parameter > 'max' ignored > Jun 28 14:53:54 localhost kernel: [ 2.306401] zram: unknown parameter > 'zram' ignored > Jun 28 14:53:54 localhost kernel: [ 2.306402] zram: unknown parameter > 'devices' ignored > Jun 28 14:53:54 localhost kernel: [ 2.312100] zram: Created 32 device(s) > ... > Jun 28 14:53:54 localhost kernel: [ 2.327478] [drm] ring test on 6 > succeeded in 22 usecs > Jun 28 14:53:54 localhost kernel: [ 2.327492] [drm] ring test on 7 > succeeded in 4 usecs > Jun 28 14:53:54 localhost kernel: [ 2.327493] [drm] VCE initialized > successfully. > Jun 28 14:53:54 localhost kernel: [ 2.327763] [drm] ib test on ring 0 > succeeded in 0 usecs > Jun 28 14:53:54 localhost kernel: [ 2.327925] [drm] ib test on ring 1 > succeeded in 0 usecs > Jun 28 14:53:54 localhost kernel: [ 2.328079] [drm] ib test on ring 2 > succeeded in 0 usecs > Jun 28 14:53:54 localhost kernel: [ 2.328237] [drm] ib test on ring 3 > succeeded in 0 usecs > Jun 28 14:53:54 localhost kernel: [ 2.328394] [drm] ib test on ring 4 > succeeded in 0 usecs > Jun 28 14:53:54 localhost kernel: [ 2.328707] usb 1-7: ep 0x85 - rounding > interval to 64 microframes, ep desc says 80 microframes > Jun 28 14:53:54 localhost kernel: [ 2.340997] Adding 254540k swap on > /dev/zram0. Priority:32767 extents:1 across:254540k SSFS > Jun 28 14:53:54 localhost kernel: [ 2.341054] Adding 254540k swap on > /dev/zram1. Priority:32767 extents:1 across:254540k SSFS > Jun 28 14:53:54 localhost kernel: [ 2.341110] Adding 254540k swap on > /dev/zram2. Priority:32767 extents:1 across:254540k SSFS > Jun 28 14:53:54 localhost kernel: [ 2.341162] Adding 254540k swap on > /dev/zram3. Priority:32767 extents:1 across:254540k SSFS > Jun 28 14:53:54 localhost kernel: [ 2.343872] [drm] ib test on ring 5 > succeeded > Jun 28 14:53:54 localhost kernel: [ 2.355627] raid6: avx2x1 16273 MB/s > Jun 28 14:53:54 localhost kernel: [ 2.364832] [drm] ib test on ring 6 > succeeded > Jun 28 14:53:54 localhost kernel: [ 2.365591] [drm] ib test on ring 7 > succeeded > Jun 28 14:53:54 localhost kernel: [ 2.366015] [drm] Radeon Display > Connectors > Jun 28 14:53:54 localhost kernel: [ 2.366018] [drm] Connector 0: > Jun 28 14:53:54 localhost kernel: [ 2.366019] [drm] DP-1 > Jun 28 14:53:54 localhost kernel: [ 2.366020] [drm] HPD2 > Jun 28 14:53:54 localhost kernel: [ 2.366022] [drm] DDC: 0x6530 0x6530 > 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c > Jun 28 14:53:54 localhost kernel: [ 2.366024] [drm] Encoders: > Jun 28 14:53:54 localhost kernel: [ 2.366026] [drm] DFP1: > INTERNAL_UNIPHY2 > Jun 28 14:53:54 localhost kernel: [ 2.366027] [drm] Connector 1: > Jun 28 14:53:54 localhost kernel: [ 2.366028] [drm] HDMI-A-1 > Jun 28 14:53:54 localhost kernel: [ 2.366030] [drm] HPD3 > Jun 28 14:53:54 localhost kernel: [ 2.366032] [drm] DDC: 0x6550 0x6550 > 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c > Jun 28 14:53:54 localhost kernel: [ 2.366033] [drm] Encoders: > Jun 28 14:53:54 localhost kernel: [ 2.366035] [drm] DFP2: > INTERNAL_UNIPHY2 > Jun 28 14:53:54 localhost kernel: [ 2.366036] [drm] Connector 2: > Jun 28 14:53:54 localhost kernel: [ 2.366037] [drm] DVI-D-1 > Jun 28 14:53:54 localhost kernel: [ 2.366039] [drm] HPD1 > Jun 28 14:53:54 localhost kernel: [ 2.366041] [drm] DDC: 0x6560 0x6560 > 0x6564 0x6564 0x6568 0x6568 0x656c 0x656c > Jun 28 14:53:54 localhost kernel: [ 2.366043] [drm] Encoders: > Jun 28 14:53:54 localhost kernel: [ 2.366044] [drm] DFP3: > INTERNAL_UNIPHY1 > Jun 28 14:53:54 localhost kernel: [ 2.366045] [drm] Connector 3: > Jun 28 14:53:54 localhost kernel: [ 2.366046] [drm] DVI-I-1 > Jun 28 14:53:54 localhost kernel: [ 2.366048] [drm] HPD6 > Jun 28 14:53:54 localhost kernel: [ 2.366049] [drm] DDC: 0x6580 0x6580 > 0x6584 0x6584 0x6588 0x6588 0x658c 0x658c > Jun 28 14:53:54 localhost kernel: [ 2.366051] [drm] Encoders: > Jun 28 14:53:54 localhost kernel: [ 2.366052] [drm] DFP4: > INTERNAL_UNIPHY > Jun 28 14:53:54 localhost kernel: [ 2.366053] [drm] CRT1: > INTERNAL_KLDSCP_DAC1 > Jun 28 14:53:54 localhost kernel: [ 2.412356] raid6: avx2x2 20798 MB/s > Jun 28 14:53:54 localhost kernel: [ 2.412358] Switched to clocksource tsc > Jun 28 14:53:54 localhost kernel: [ 2.439066] usb 1-8: new low-speed USB > device number 7 using xhci_hcd > Jun 28 14:53:54 localhost kernel: [ 2.442481] e1000e 0000:00:19.0: irq 47 > for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.464181] [drm] fb mappable at > 0xE098E000 > Jun 28 14:53:54 localhost kernel: [ 2.464183] [drm] vram apper at > 0xE0000000 > Jun 28 14:53:54 localhost kernel: [ 2.464184] [drm] size 9216000 > Jun 28 14:53:54 localhost kernel: [ 2.464185] [drm] fb depth is 24 > Jun 28 14:53:54 localhost kernel: [ 2.464186] [drm] pitch is 7680 > Jun 28 14:53:54 localhost kernel: [ 2.464227] fbcon: radeondrmfb (fb0) is > primary device > Jun 28 14:53:54 localhost kernel: [ 2.469074] raid6: avx2x4 24141 MB/s > Jun 28 14:53:54 localhost kernel: [ 2.469074] raid6: using algorithm > avx2x4 (24141 MB/s) > Jun 28 14:53:54 localhost kernel: [ 2.469075] raid6: using avx2x2 recovery > algorithm > Jun 28 14:53:54 localhost kernel: [ 2.469466] xor: automatically using > best checksumming function: > Jun 28 14:53:54 localhost kernel: [ 2.484840] Console: switching to colour > frame buffer device 240x75 > Jun 28 14:53:54 localhost kernel: [ 2.487822] radeon 0000:01:00.0: fb0: > radeondrmfb frame buffer device > Jun 28 14:53:54 localhost kernel: [ 2.487836] radeon 0000:01:00.0: > registered panic notifier > Jun 28 14:53:54 localhost kernel: [ 2.502444] avx : 41036.400 > MB/sec > Jun 28 14:53:54 localhost kernel: [ 2.510424] Btrfs loaded > Jun 28 14:53:54 localhost kernel: [ 2.510765] BTRFS: device fsid > 9d4254aa-6715-4fa8-986a-1af0d51768ad devid 1 transid 303773 /dev/sdc1 > Jun 28 14:53:54 localhost kernel: [ 2.510907] BTRFS: device fsid > 9d4254aa-6715-4fa8-986a-1af0d51768ad devid 2 transid 303773 /dev/sdb1 > Jun 28 14:53:54 localhost kernel: [ 2.513700] [drm] Initialized radeon > 2.39.0 20080528 for 0000:01:00.0 on minor 0 > Jun 28 14:53:54 localhost kernel: [ 2.513800] snd_hda_intel 0000:01:00.1: > Handle VGA-switcheroo audio client > Jun 28 14:53:54 localhost kernel: [ 2.513878] snd_hda_intel 0000:01:00.1: > irq 48 for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.513971] [drm] Memory usable by > graphics device = 2048M > Jun 28 14:53:54 localhost kernel: [ 2.520123] input: HD-Audio Generic > HDMI/DP,pcm=3 as > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input13 > Jun 28 14:53:54 localhost kernel: [ 2.520184] input: HD-Audio Generic > HDMI/DP,pcm=7 as > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input14 > Jun 28 14:53:54 localhost kernel: [ 2.520258] input: HD-Audio Generic > HDMI/DP,pcm=8 as > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15 > Jun 28 14:53:54 localhost kernel: [ 2.520368] input: HD-Audio Generic > HDMI/DP,pcm=9 as > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input16 > Jun 28 14:53:54 localhost kernel: [ 2.520440] input: HD-Audio Generic > HDMI/DP,pcm=10 as > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17 > Jun 28 14:53:54 localhost kernel: [ 2.521215] input: HD-Audio Generic > HDMI/DP,pcm=11 as > /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18 > Jun 28 14:53:54 localhost kernel: [ 2.532558] i915 0000:00:02.0: irq 49 > for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.532565] [drm] Supports vblank > timestamp caching Rev 2 (21.10.2013). > Jun 28 14:53:54 localhost kernel: [ 2.532580] [drm] Driver supports > precise vblank timestamp query. > Jun 28 14:53:54 localhost kernel: [ 2.532607] vgaarb: device changed > decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem > Jun 28 14:53:54 localhost kernel: [ 2.545934] e1000e 0000:00:19.0: irq 50 > for MSI/MSI-X > Jun 28 14:53:54 localhost kernel: [ 2.546018] IPv6: ADDRCONF(NETDEV_UP): > eth0: link is not ready > Jun 28 14:53:54 localhost kernel: [ 2.619122] usb 1-8: ep 0x81 - rounding > interval to 512 microframes, ep desc says 800 microframes > Jun 28 14:53:54 localhost kernel: [ 2.759949] i915 0000:00:02.0: fb1: > inteldrmfb frame buffer device > Jun 28 14:53:54 localhost kernel: [ 2.760226] [drm] Initialized i915 1.6.0 > 20080730 for 0000:00:02.0 on minor 1 > Jun 28 14:53:54 localhost kernel: [ 2.779511] usb 1-14: new high-speed USB > device number 8 using xhci_hcd > > I am willing to try patches. > > Please fix or revert this commit. > > Thanks, > Ed Tomlinson > > > On Thursday 05 June 2014 16:58:28 Daniel Vetter wrote: > > Touching the VGA resources on an IVB EFI machine causes hard hangs when > > we then kick out the efifb. Ouch. > > > > Apparently this also prevents unclaimed register errors on hsw and > > hard machine hangs on my i855gm when trying to unbind fbcon. > > > > Also, we want this to make I915_FBDEV=n safe. > > > > v2: Rebase and pimp commit message. > > > > v3: We also need to unregister the vga console, otherwise the unbind > > of the fb console before module unload might resurrect it again. > > > > v4: Ignore errors when the vga console is already unregistered - this > > can happen when e.g. reloading i915.ko. > > > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67813 > > Cc: David Herrmann <dh.herrmann at gmail.com> > > Cc: Jean-Christophe Plagniol-Villard <plagnioj at jcrosoft.com> > > Cc: Tomi Valkeinen <tomi.valkeinen at ti.com> > > Cc: linux-fbdev at vger.kernel.org > > Cc: Jani Nikula <jani.nikula at linux.intel.com> > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> (v1) > > Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch> > > --- > > drivers/gpu/drm/i915/i915_dma.c | 43 > > +++++++++++++++++++++++++++++++++++++++- > > drivers/video/console/dummycon.c | 1 + > > drivers/video/console/vgacon.c | 1 + > > 3 files changed, 44 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/i915/i915_dma.c > > b/drivers/gpu/drm/i915/i915_dma.c > > index 27fe65ac5940..bcb66ddd649e 100644 > > --- a/drivers/gpu/drm/i915/i915_dma.c > > +++ b/drivers/gpu/drm/i915/i915_dma.c > > @@ -36,6 +36,8 @@ > > #include "i915_drv.h" > > #include "i915_trace.h" > > #include <linux/pci.h> > > +#include <linux/console.h> > > +#include <linux/vt.h> > > #include <linux/vgaarb.h> > > #include <linux/acpi.h> > > #include <linux/pnp.h> > > @@ -1449,6 +1451,38 @@ static void i915_kick_out_firmware_fb(struct > > drm_i915_private *dev_priv) > > } > > #endif > > > > +#if !defined(CONFIG_VGA_CONSOLE) > > +static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv) > > +{ > > + return 0; > > +} > > +#elif !defined(CONFIG_DUMMY_CONSOLE) > > +static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv) > > +{ > > + return -ENODEV; > > +} > > +#else > > +static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv) > > +{ > > + int ret; > > + > > + DRM_INFO("Replacing VGA console driver\n"); > > + > > + console_lock(); > > + ret = do_take_over_console(&dummy_con, 0, MAX_NR_CONSOLES - 1, 1); > > + if (ret == 0) { > > + ret = do_unregister_con_driver(&vga_con); > > + > > + /* Ignore "already unregistered". */ > > + if (ret == -ENODEV) > > + ret = 0; > > + } > > + console_unlock(); > > + > > + return ret; > > +} > > +#endif > > + > > static void i915_dump_device_info(struct drm_i915_private *dev_priv) > > { > > const struct intel_device_info *info = &dev_priv->info; > > @@ -1622,8 +1656,15 @@ int i915_driver_load(struct drm_device *dev, > > unsigned long flags) > > if (ret) > > goto out_regs; > > > > - if (drm_core_check_feature(dev, DRIVER_MODESET)) > > + if (drm_core_check_feature(dev, DRIVER_MODESET)) { > > + ret = i915_kick_out_vgacon(dev_priv); > > + if (ret) { > > + DRM_ERROR("failed to remove conflicting VGA console\n"); > > + goto out_gtt; > > + } > > + > > i915_kick_out_firmware_fb(dev_priv); > > + } > > > > pci_set_master(dev->pdev); > > > > diff --git a/drivers/video/console/dummycon.c > > b/drivers/video/console/dummycon.c > > index b63860f7beab..40bec8d64b0a 100644 > > --- a/drivers/video/console/dummycon.c > > +++ b/drivers/video/console/dummycon.c > > @@ -77,3 +77,4 @@ const struct consw dummy_con = { > > .con_set_palette = DUMMY, > > .con_scrolldelta = DUMMY, > > }; > > +EXPORT_SYMBOL_GPL(dummy_con); > > diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c > > index 9d8feac67637..84acd6223dc5 100644 > > --- a/drivers/video/console/vgacon.c > > +++ b/drivers/video/console/vgacon.c > > @@ -1440,5 +1440,6 @@ const struct consw vga_con = { > > .con_build_attr = vgacon_build_attr, > > .con_invert_region = vgacon_invert_region, > > }; > > +EXPORT_SYMBOL(vga_con); > > > > MODULE_LICENSE("GPL"); > > >
