Re: cx18-0: ioremap failed, perhaps increasing __VMALLOC_RESERVE in page.h
- Date: Fri, 02 May 2008 09:47:48 -0400
- From: Andy Walls <awalls@xxxxxxxxx>
- Subject: Re: cx18-0: ioremap failed, perhaps increasing __VMALLOC_RESERVE in page.h
On Fri, 2008-05-02 at 08:59 -0400, Michael Krufky wrote:
> I had this issue before dtv support was properly added to the cx18 driver.
>
> With digital working fine, the issue had disappeared.
>
> Now, using cx18 in the master branch, whose dtv side is crippled due to
> lack of the mxl driver, the error is back.
>
> The cx18 driver can be loaded on my system once.
Mike,
On the modprobes , could you use
# modprobe cx18 debug=3
So we can see the debug messages about releasing encoder memory, base
address and attempting ioremap.
> If I unload it, then I
> get this every time I try to modprobe it again.
>
> First, this is what it looks like the first time -- this is OK.
>
> [ 45.515441] Linux video capture interface: v2.00
> [ 45.840402] cx18: Start initialization, version 1.0.0
> [ 45.840478] cx18-0: Initializing card #0
> [ 45.840484] cx18-0: Autodetected Hauppauge card
> [ 45.840510] ACPI: PCI Interrupt 0000:02:07.0[A] -> GSI 19 (level,
> low) -> IRQ 17
> [ 45.840769] cx18-0: cx23418 revision 01010000 (B)
> [ 45.977540] tveeprom 1-0050: Hauppauge model 74041, rev C6B2, serial#
> 899541
> [ 45.977547] tveeprom 1-0050: MAC address is 00-0D-FE-0D-B9-D5
> [ 45.977551] tveeprom 1-0050: tuner model is TCL M2523_5N_E (idx 112,
> type 50)
> [ 45.977555] tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08)
> [ 45.977559] tveeprom 1-0050: audio processor is CX23418 (idx 38)
> [ 45.977562] tveeprom 1-0050: decoder processor is CX23418 (idx 31)
> [ 45.977566] tveeprom 1-0050: has no radio, has IR receiver, has IR
> transmitter
> [ 45.977570] cx18-0: Autodetected Hauppauge HVR-1600
> [ 45.977574] cx18-0: DVB & VBI are not yet supported
> [ 46.186774] tuner 2-0061: chip found @ 0xc2 (cx18 i2c driver #0-1)
> [ 46.186834] cs5345 1-004c: chip found @ 0x98 (cx18 i2c driver #0-0)
> [ 46.188571] cx18-0: Disabled encoder IDX device
> [ 46.188639] cx18-0: Registered device video0 for encoder MPEG (2 MB)
> [ 46.188688] cx18-0: Registered device video32 for encoder YUV (2 MB)
> [ 46.188737] cx18-0: Registered device video24 for encoder PCM audio
> (1 MB)
> [ 46.318804] Driver 'sr' needs updating - please use bus_type methods
> [ 46.333007] sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray
> [ 46.333014] Uniform CD-ROM driver Revision: 3.20
> [ 46.333143] sr 2:0:0:0: Attached scsi CD-ROM sr0
> [ 46.461691] tuner-simple 2-0061: creating new instance
> [ 46.461697] tuner-simple 2-0061: type set to 50 (TCL 2002N)
> [ 46.740100] parport_pc 00:0a: reported by Plug and Play ACPI
> [ 46.740140] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
> [ 48.183476] cx18-0: loaded v4l-cx23418-apu.fw firmware V00120000
> (141200 bytes)
> [ 48.283518] cx18-0: loaded v4l-cx23418-cpu.fw firmware (174716 bytes)
> [ 48.289808] cx18-0: FW version: 0.0.71.0 (Release 2006/12/29)
> [ 48.850871] cx18-0: loaded v4l-cx23418-dig.fw firmware (16382 bytes)
> [ 48.852862] cx18-0: Initialized card #0: Hauppauge HVR-1600
> [ 48.852938] ACPI: PCI Interrupt 0000:00:14.5[B] -> GSI 17 (level,
> low) -> IRQ 16
> [ 48.853583] cx18: End initialization
>
> ...but after unloading it once:
>
> [ 2132.526778] tuner-simple 2-0061: destroying instance
> [ 2132.531551] ACPI: PCI interrupt for device 0000:02:07.0 disabled
> [ 2132.531562] cx18-0: Removed Hauppauge HVR-1600, card #0
>
>
> every time I try to load cx18 again, I get this:
>
>
> [ 2198.627071] Linux video capture interface: v2.00
> [ 2198.644995] cx18: Start initialization, version 1.0.0
> [ 2198.645061] cx18-0: Initializing card #0
> [ 2198.645065] cx18-0: Autodetected Hauppauge card
> [ 2198.645092] ACPI: PCI Interrupt 0000:02:07.0[A] -> GSI 19 (level,
> low) -> IRQ 17
> [ 2198.645115] allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> [ 2198.645119] cx18-0: ioremap failed, perhaps increasing
> __VMALLOC_RESERVE in page.h
I can't reproduce this using the, mxl5005 crippled (and now gone)
~hverkuil/v4l-dvb-cx18 repository I pulled last week.
Hans or Steve,
I noticed we do a conditional iounmap here:
static void cx18_remove(struct pci_dev *pci_dev)
{
struct cx18 *cx = pci_get_drvdata(pci_dev);
CX18_DEBUG_INFO("Removing Card #%d\n", cx->num);
/* Stop all captures */
CX18_DEBUG_INFO("Stopping all streams\n");
if (atomic_read(&cx->capturing) > 0)
cx18_stop_all_captures(cx);
/* Interrupts */
sw1_irq_disable(IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU);
sw2_irq_disable(IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK);
cx18_halt_firmware(cx);
cx18_streams_cleanup(cx);
exit_cx18_i2c(cx);
free_irq(cx->dev->irq, (void *)cx);
if (cx->dev)
cx18_iounmap(cx);
release_mem_region(cx->base_addr, CX18_MEM_SIZE);
pci_disable_device(cx->dev);
CX18_INFO("Removed %s, card #%d\n", cx->card_name, cx->num);
}
Why the conditional? Since it is safe to dereference cx->dev->irq in
the call to free_irq, why is it then dereferencing cx->dev would not be
safe in calling cx18_iounmap()?
-Andy
> [ 2198.645124] cx18-0: or disabling CONFIG_HIGHMEM4G into the kernel
> would help
> [ 2198.645130] cx18-0: Error -12 on initialization
> [ 2198.645184] cx18: probe of 0000:02:07.0 failed with error -12
> [ 2198.645202] cx18: End initialization
> [ 2236.317472] Linux video capture interface: v2.00
> [ 2236.344161] cx18: Start initialization, version 1.0.0
> [ 2236.344232] cx18-0: Initializing card #0
> [ 2236.344236] cx18-0: Autodetected Hauppauge card
> [ 2236.344265] allocation failed: out of vmalloc space - use
> vmalloc=<size> to increase size.
> [ 2236.344269] cx18-0: ioremap failed, perhaps increasing
> __VMALLOC_RESERVE in page.h
> [ 2236.344273] cx18-0: or disabling CONFIG_HIGHMEM4G into the kernel
> would help
> [ 2236.344278] cx18-0: Error -12 on initialization
> [ 2236.344287] cx18: probe of 0000:02:07.0 failed with error -12
> [ 2236.344304] cx18: End initialization
>
>
> -Mike
>
>
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