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Re: Debian Hurd tests on real hardware - network, IRQ issues

From: Riccardo Mottola
Subject: Re: Debian Hurd tests on real hardware - network, IRQ issues
Date: Mon, 7 Dec 2020 15:46:04 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 SeaMonkey/

Hi Samuel,

Samuel Thibault wrote:
>> [    3.491071] isapnp: Scanning for PnP cards...
>> [    3.845792] isapnp: No Plug & Play device found
>> [    3.846113] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> [    3.866946] 00:06: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a
>> 16550A
>> [    3.887876] 00:07: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a
>> 16550A
>> HURD may have issue with his sharing?
> Apparently nobody started Hurd's GNU Mach micro-kernel on a system with
> 4 com ports indeed.  I pushed to master a restriction to 2 ports only,
> to just avoid the issue.

Since you wrote me you pushed a new kernel, I just did apt-get update,
got a new hurd.
Unfortunately, the problem persists.

>> It is interesting that the laptop has no RS232 port... where are they?
> No idea, perhaps the manual might say, but I doubt so actually.

indeed... we just know Linux & BSD handle that correctly and HURD not
yet :) General IRQ information shows these can be shared (of course
never physically used at the same time), it is even on Wikipedia.


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