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2008-06-26V4L/DVB (8092): videodev: simplify and fix standard enumerationHans Verkuil
VIDIOC_ENUMSTD did not return all the PAL/SECAM/NTSC variants: it just returned one single PAL/SECAM/NTSC standard without separate entries for the trickier standards like NTSC-JP. Changed the code so that it behaves better. Also simplified the if/switch statements into a common standards lookup table. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8075): stv0299: Uncorrected block count and bit error rate fixedOliver Endriss
Fix uncorrected block counter and bit error rate to follow DVB API spec: - Unsupported controls return -ENOSYS. - UNC must never be set to 0. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8074): av7110: OSD transfers should not be interruptedOliver Endriss
OSD transfers should not be interrupted. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8073): av7110: Catch another type of ARM crashOliver Endriss
Catch another type of ARM crash. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8071): tda10023: Fix possible kernel oops during initialisationOliver Endriss
If the i2c write fails during initialisation, an oops happens because state->frontend.dvb is still undefined. Fixed. Thanks to Sigmund Augdal for reporting this bug, and to Hartmut Birr for suggesting the fix. Thanks-to: Sigmund Augdal <sigmund@snap.tv> Thanks-to: Hartmut Birr <e9hack@gmail.com> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8069): cx18: Fix S-Video and Compsite inputs for the Yuan MPC718 ↵Andy Walls
and enable card entry cx18: Fix S-Video and Compsite input settings for the Yuan MPC718 per user reports from Yuri Warczynski <Yuri.Warczynski@gmail.com> and Brian Hope <brian@hopefamily.info> and enable the card entry. The tuner reset GPIO pin is likely incorrect as the tuner firmware cannot be reloaded without a reboot. It is likely the audio routing is done via GPIO which is not implemented yet, as users report audio doesn't work for some inputs. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8068): cx18: Add I2C slave reset via GPIO upon initializationAndy Walls
cx18: Add I2C slave reset via GPIO upon initialization. One user, Michael <msd4824@yahoo.com>, has reported this allows his HVR-1600 EEPROM to be consistently recognized when using (long,) 100 msec delays. The delays in this commit are nominal (10 & 40 msec) and need testing/tuning on boards with I2C problems to find the right values. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8067): cx18: Fix firmware load for case when digital capture ↵Andy Walls
happens first This is a fix for the case when a digital capture from dvr0 happens first after modprobe, before access to any cx18 v4l2 device nodes. The initial dvb feed start has been changed to load the firmware if not already loaded. Also fixed a use counter to correct dvb feed accounting if starting the transport DMA fails. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8066): cx18: Fix audio mux input definitions for HVR-1600 Line In 2 ↵Andy Walls
and FM radio Fix the cx18-cards.c structures for the HVR-1600 to reflect that audio Line In 2 and FM radio audio go to AIN3 and AIN4 of the CS5345 mux respectively. Verified by physical inspection of an HVR-1600MCE, by listening to FM broadcasts with the HVR-1600MCE, and by comparing with the card definition for a PVR-150 in ivtv. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8063): cx18: Fix unintended auto configurations in cx18-av-coreAndy Walls
Change the cx18-av-core code so that accesses to cx23418 av core that cause auto-configuration will be adjusted to emulate the auto-configuration behavior of the cx25843. This fixes the VBI displayed as video at the top of the frame for NTSC and probably other things. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8061): cx18: only select tuner / frontend modules if !DVB_FE_CUSTOMISEMichael Krufky
The automatic Kconfig selection for tuners and frontends should be conditional, based on !DVB_FE_CUSTOMISE. This patch corrects the selection for VIDEO_CX18 on MEDIA_TUNER_MXL5005S and DVB_S5H1409 Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8048): saa7134: Fix entries for Avermedia A16d and Avermedia E506Tim Farrington
Also, adds IR table for Avermedia A16d Signed-off-by: Tim Farrington <timf@iinet.net.au> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8044): au8522: tuning optimizationsMichael Krufky
If the current modulation and frequency is already set to the desired parameters, then don't re-tune. Don't store current frequency until after we've tuned successfully. Force a re-tune after resume from standby. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8043): au0828: add support for additional USB device id'sMichael Krufky
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8042): DVB-USB UMT-010 channel scan oopsAustin Lund
In the umt-010 driver the struct umt_properties sets the number of URBs for transfer to 20. But in dvb-usb.h MAX_NO_URBS_FOR_DATA_STREAM is set to 10. Not surprisingly this causes an oops for all devices which use the umt-010 chipset when they are inserted. fix on Kaffeine channel scan for Initialize stream count using MAX_NO_URBS_FOR_DATA_STREAM. Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: maximilian attems <max@stro.at> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8040): soc-camera: remove soc_camera_host_class classGuennadi Liakhovetski
Devices can either be class devices or bus devices, not both at the same time. Soc-camera host devices usually have a platform device as their parent. Trying to also register them with a class crashes the kernel, when linked statically. Interestingly, it works when built as a module. Thanks to Paulius Zaleckas for reporting. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8039): pxa-camera: fix platform_get_irq() error handling.Guennadi Liakhovetski
platform_get_irq() returns a negative value on error, not 0. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8037): tda18271: ensure that the thermometer is off during channel ↵Michael Krufky
configuration Having the thermometer on during channel configuration could cause tuning instability. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8036): tda18271: toggle rf agc speed mode on TDA18271HD/C2 onlyMichael Krufky
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8035): tda18271: dont touch EB14 if rf_cal lookup is out of rangeMichael Krufky
The TDA18271HD/C1 rf_cal map lookup is expected to go out of range outside of the frequency window 41 MHz - 61.1 MHz. In these cases, the internal RF tracking filters calibration mechanism is used. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8034): tda18271: fix IF notch frequency handlingMichael Krufky
The IF notch bit gets unset when we update the Main Post Div register value, before we have a chance to write the desired IF notch setting to the tuner. Move the IF notch configuration to after we update MPD. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8029): Improve error message at tda1004x_attachMauro Carvalho Chehab
When an error occurs at firmware loading, sometimes, tda1004x stops answering. Instead of reporting such error, attach code were assuming that the device were answering an invalid ID (0xff). This can be seen when enabling debug options: tda1004x: tda1004x_read_byte: reg=0x0 tda1004x: tda1004x_read_byte: error reg=0x0, ret=-5 Now, instead of reporting an invalid ID, it will report the correct error: tda10046: chip is not answering. Giving up. saa7133[0]/dvb: failed to attach tda10046 saa7133[0]/dvb: frontend initialization failed A possible improvement would be trying to reset the device. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8028): Improve error messages for tda1004x attachMauro Carvalho Chehab
A fresh copy of v.29 firmware, using get_firmware, is leading to an invalid firmware: DVB: registering new adapter (saa7133[0]) DVB: registering frontend 0 (Philips TDA10046H DVB-T)... tda1004x: setting up plls for 48MHz sampling clock tda1004x: found firmware revision ff -- invalid tda1004x: trying to boot from eeprom tda1004x: found firmware revision ff -- invalid tda1004x: waiting for firmware upload... tda1004x: Error during firmware upload tda1004x: found firmware revision ff -- invalid tda1004x: firmware upload failed Sometimes, loading/unloading this firmware makes tda1004x to return an invalid ID. However, there were no printk messages to help to identify what were the cause for the error. With this patch, it will now print: Invalid tda1004x ID = 0xff. Can't proceed saa7133[0]/dvb: failed to attach tda10046 saa7133[0]/dvb: frontend initialization failed Tested with LifeView FlyDVB-T Hybrid Cardbus/MSI TV @nywhere A/D NB Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8027): saa7134: Avermedia A700: only s-video and composite input ↵Matthias Schwarzott
are working Describe exactly that only s-video and composite input are working on Avermedia A700 Signed-off-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8026): Avoids an OOPS if dev struct can't be successfully recoveredMauro Carvalho Chehab
On some alsa versions, it seems that snd_pcm_substream_chip(substream) is returning a NULL pointer. This causes an OOPS, as reported by: https://bugs.launchpad.net/ubuntu/+source/linux-ubuntu-modules-2.6.24/+bug/212271 https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/212960 This patch avoids the OOPS by not letting and open() succeed. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8022): saa7134: fix race between opening and closing the deviceMarcin Slusarz
decrementing dev->empress_users should be done as last action of ts_release, because it sleeps and write access to dev->empress_started is not protected in any way (additionally closing thread could mute audio after opening thread unmuted it) Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8020): Fix callbacks functions of saa7134_empressDmitri Belimov
If I try v4l2-ctl --all -d /dev/video1 or v4l2-ctl --streamon -d /dev/video1 modules crashed: *pde = 00000000 Modules linked in: ac battery loop saa7134_empress(F) saa6752hs(F) tuner_simple(F) tuner_types(F) tea5767(F) tda9887(F) tda8290(F) tea5761(F) tuner(F) snd_cmipci snd_pcm snd_page_alloc snd_opl3_lib saa7134(F) snd_mpu401 parport_pc parport snd_timer snd_hwdep snd_mpu401_uart floppy rtc psmouse videodev(F) v4l1_compat(F) compat_ioctl32(F) v4l2_common(F) videobuf_dma_sg(F) videobuf_core(F) snd_rawmidi snd_seq_device via_ircc pcspkr snd ir_kbd_i2c(F) irda soundcore ir_common(F) crc_ccitt tveeprom(F) i2c_viapro i2c_core button via_agp agpgart evdev ext3 jbd mbcache ide_cd_mod cdrom ide_disk 8139cp via82cxxx ide_core 8139too mii ehci_hcd uhci_hcd usbcore thermal processor fan EIP is at __mutex_lock_slowpath+0x29/0x7b DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process v4l2-ctl (pid: 2742, ti=ced7e000 task=cf325260 task.ti=ced7e000) d08e5411 00000000 ced7fed4 00000000 d0975acb 40045612 cfa86ee0 ffffffcd cf2b7000 ced7febc c03858d6 00000019 00000292 d089e4ec cf37b2a0 d089e4a0 Call Trace: [<c028b52b>] mutex_lock+0xa/0xb [<d08e5411>] videobuf_streamon+0xf/0x9a [videobuf_core] [<d0975acb>] __video_do_ioctl+0x136a/0x2d68 [videodev] [<d088f789>] task_end_request+0x40/0x51 [ide_core] [<d088c4aa>] ide_intr+0x187/0x192 [ide_core] [<c016a551>] mntput_no_expire+0x11/0x64 [<c0160b1c>] path_walk+0x90/0x98 [<d0977738>] video_ioctl2+0x173/0x239 [videodev] [<c0140936>] filemap_fault+0x202/0x370 [<c014930a>] __do_fault+0x2c3/0x2fe [<c014ab03>] handle_mm_fault+0x22a/0x49f [<c0162737>] vfs_ioctl+0x47/0x5d [<c0162992>] do_vfs_ioctl+0x245/0x258 [<c01629e6>] sys_ioctl+0x41/0x5b [<c01036a6>] sysenter_past_esp+0x5f/0x85 ======================= After this fix all of that commands works without problem: v4l2-ctl --all -d /dev/video1 Driver Info: Driver name : saa7134 Card type : Beholder BeholdTV M6 Extra Bus info : PCI:0000:00:0d.0 Driver version: 526 Capabilities : 0x05000001 Video Capture Read/Write Streaming Format Video Capture: Width/Height : 720/576 Pixel Format : MPEG Field : Any Bytes per Line: 0 Size Image : 58656 Colorspace : Unknown (00000000) Video input : 0 (CCIR656) Video Standard = 0x000000ff PAL-B/B1/G/H/I/D/D1/K P.S. data from /dev/video1 is not correct :(( . Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8018): Add em2860 chip IDDevin Heitmueller
em28xx-cards.c em28xx-reg.h - Add em2860 chip ID (seen on Pointnix Intra-Oral Camera) http://www.pointnix.com/ENG/dental/product_02.asp Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8017): Ensure em28xx extensions only get run against devs that ↵Devin Heitmueller
support them em28xx-audio.c em28xx-dvb.c - Em28xx extensions should ensure they are being only loaded against devices that support them. Deals with case where there are multiple em28xx devices, some of which have DVB (or ALSA) support and some do not. Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8015): gl861: replace non critical msleep(0) with msleep(1) to be ↵Antti Palosaari
on the safe side - change msleep(0) to msleep(1) Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8013): gl861: remove useless identify_stateAntti Palosaari
- remove useless identify_state - device is always warm Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8012): gl861: sleep a little to avoid I2C errorsAntti Palosaari
- add little sleep to avoid I2C errors arising on faster CPUs Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8011): em28xx: enable DVB for HVR-900Devin Heitmueller
em28xx-cards.c - DVB support is supposed to be enabled for the first generation HVR-900. This device was confirmed with DVB by mkrufky when we did the original work in April, but I guess we forgot to set the flag. Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8010): em28xx: Properly register extensions for already attached ↵Devin Heitmueller
devices em28xx-video.c - Properly handle loading of the module when multiple devices are already connected (such as at bootup). Before we were only calling dvb_init() against the last device in the list, so while we were handling subsequent adds properly, if there were multiple devices present on driver load, everybody except the last device would not get initialized. Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8008): cx18: remove duplicate audio and video input enumsHans Verkuil
cx18-cards.h had a copy of the audio and video input enums from cx18-av-core.h, but with different prefixes. Removed that copy and used the ones from cx18-av-core.h. Thanks to Andy Walls <awalls@radix.net> for the report. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8007): cx18/cx25840: the S-Video LUMA input can use all In1-In8 inputsHans Verkuil
The S-Video LUMA input was restricted to the In1-In4 inputs, but it turns out that it can use the full range of In1-In8. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8005): Fix OOPS if frontend is nullMauro Carvalho Chehab
Thanks to timf <timf@iinet.net.au> and Mike Galbraith <efault@gmx.de> to report this issue. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26V4L/DVB (8004): Fix INPUT dependency at budget-ciMauro Carvalho Chehab
As reported by Ingo Molnar: MODPOST 346 modules ERROR: "input_free_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined! ERROR: "input_register_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined! ERROR: "input_allocate_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined! ERROR: "input_unregister_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined! ERROR: "input_event" [drivers/media/common/ir-common.ko] undefined! This occurs when: CONFIG_INPUT=n CONFIG_VIDEO_IR=m CONFIG_DVB_BUDGET_CI=m Thanks-to: Ingo Molnar <mingo@elte.hu> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26powerpc/booke: Add kprobes support for booke style processorsKumar Gala
This patch is based on work done by Madhvesh. R. Sulibhavi back in March 2007. We refactor some of the single step handling since it differs between "classic" and "booke" powerpc cores. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26powerpc/kprobes: Some minor fixesKumar Gala
* Mark __flush_icache_range as a function that can't be probed since its used by the kprobe code. * Fix an issue with single stepping and async exceptions. We need to ensure that we dont get an async exception (external, decrementer, etc) while we are attempting to single step the probe point. Added a check to ensure we only handle a single step if its really intended for the instruction in question. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26powerpc/QE: use arch_initcall to probe QUICC Engine GPIOsAnton Vorontsov
It was discussed that global arch_initcall() is preferred way to probe QE GPIOs, so let's use it. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26powerpc/85xx: Update pin setup for 8560adsVitaly Bordug
Ports B and C pins programming is changed to get SCC2 UART and FCC3 ethernet work. Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26powerpc/cpm: Remove !CONFIG_PPC_CPM_NEW_BINDING codeKumar Gala
Now that arch/ppc is gone we always define CONFIG_PPC_CPM_NEW_BINDING so we can remove all the code associated with !CONFIG_PPC_CPM_NEW_BINDING. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26cpm_uart: Remove !CONFIG_PPC_CPM_NEW_BINDING codeKumar Gala
Now that arch/ppc is gone we always define CONFIG_PPC_CPM_NEW_BINDING so we can remove all the code associated with !CONFIG_PPC_CPM_NEW_BINDING. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26cpm_uart: fix whitespace issuesKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26powerpc/e500mc: flush L2 on NAP for e500mcKumar Gala
If we have an L2CSR register (e500mc) we need to flush the L2 before going to nap. We use the HW flush mechanism provided in that register. The code reuses the CPU_FTR_604_PERF_MON bit as it is no longer used by any code in the kernel. Additionally we didn't reuse the exist L2CR feature bit as this is intended for the 7xxx L2CR register and L2CSR is part of the new Freescale "Book-E" registers. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26powerpc/85xx: add DOZE/NAP support for e500 coreKumar Gala
The e500 core enter DOZE/NAP power-saving modes when the core go to cpu_idle routine. The power management default running mode is DOZE, If the user echo 1 > /proc/sys/kernel/powersave-nap the system will change to NAP running mode. Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26Merge branches 'release', 'acpi_disabled' and 'bugzilla-10958' into releaseLen Brown
2008-06-26dock: bay: Don't call acpi_walk_namespace() when ACPI is disabled.Len Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-26ACPI: don't walk tables if ACPI was disabledVegard Nossum
Ingo Molnar wrote: > -tip auto-testing started triggering this spinlock corruption message > yesterday: > > [ 3.976213] calling acpi_rtc_init+0x0/0xd3 > [ 3.980213] ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread F7C50000 could not acquire Mutex [3] [20080321] > [ 3.992213] BUG: spinlock bad magic on CPU#0, swapper/1 > [ 3.992213] lock: c2508dc4, .magic: 00000000, .owner: swapper/1, .owner_cpu: 0 This is apparently because some parts of ACPI, including mutexes, are not initialized when acpi=off is passed to the kernel. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
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