Re: [PATCH] pata_legacy: Allow disabling of legacy PATA device probes on non-PCI systems

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Nov 30, 2016 at 9:53 AM, One Thousand Gnomes
<gnomes@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, 30 Nov 2016 16:11:39 +0300
> Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:
>
>> Hello.
>>
>> On 11/29/2016 08:53 PM, Matthew Whitehead wrote:
>>
>> > If there is no PCI bus detected in drivers/ata/pata_legacy.c, it registers all the
>> > common legacy PATA devices. This includes I/O ports (0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160)
>> > and also their associated interrupts (14,15,11,10,8,12).
>> >
>> > Unfortunately, on such systems those interrupt lines are at a premium because there is no
>> > PCI alternative. This patch allows you to disable individual port/interrupt pairs by providing
>> > a list of ports to skip allocating.
>
> In what situation do you actually hit this. The probes should fail so the
> interrupt shouldn't end up allocated.
>

Alan,
  on my hardware it grabbed all those interrupts, showing up in
/proc/interrupts very clearly.

- Matthew
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux