[haiku-bugs] Re: [Haiku] #17272: Slow network transfer
- From: "Haiku" <trac@xxxxxxxxxxxx>
- To: undisclosed-recipients: ;
- Date: Fri, 24 Sep 2021 08:57:30 -0000
#17272: Slow network transfer
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Reporter: jens | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Drivers/Network/ipro1000 | Version: R1/beta3
Resolution: | Keywords:
Blocked By: | Blocking:
Platform: All |
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Comment (by mmlr):
Replying to [comment:17 diver]:
So I guess it could be an usb related interrupt storm:
{{{
int 16, enabled 3, handled 0, unhandled 71138001
ehci:_ZN4EHCI16InterruptHandlerEPv (0xffffffff81906200), data
0xffffffff8260ce00, handled 0
uhci:_ZN4UHCI16InterruptHandlerEPv (0xffffffff81948670), data
0xffffffff824fd600, handled 0
uhci:_ZN4UHCI16InterruptHandlerEPv (0xffffffff81948670), data
0xffffffff824fdc00, handled 0
}}}
You can try to blacklist `ehci` and `uhci` (or both) drivers and see if
this changes anything.
Note that the global interrupt 16 is shared between PCI device 0:25 (the
network controller) and 0:26 (the USB controllers). Given the context, I'd
say the problem is with the network controller.
The driver attaches relatively late and then switches interrupts to MSI
26, where we see the handler in the ints output with some handled
interrupts.
It looks to me like there are interrupts happening during boot which go
unhandled while the driver is not yet attached and they may just stop
after that. Can get the output of ints a couple of times, continuing each
time and using the network? Just to see if the unhandled interrupts
actually continue to increase after the driver switched to MSI.
Turning off network booting in the firmware might work around the problem
as that might leave the network controller uninitialized.
If it isn't an interrupt issue, then the original problem description
sounds a lot like an MTU issue. Can you try reducing the MTU with
{{{ifconfig /dev/net/... mtu 1400}}} and see if that makes a difference?
--
Ticket URL: <
https://dev.haiku-os.org/ticket/17272#comment:25>
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https://dev.haiku-os.org>
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