Date: Fri, 26 Oct 2001 05:50:02 -0700 (PDT) From: Arjan Knepper <arjan@jak.nl> To: freebsd-bugs@FreeBSD.org Subject: Re: i386/30965: Cyclades Cyclom-Yep causes FreeBSD to hang during Message-ID: <200110261250.f9QCo2q68063@freefall.freebsd.org>
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The following reply was made to PR i386/30965; it has been noted by GNATS.
From: Arjan Knepper <arjan@jak.nl>
To: Bruce Evans <bde@zeta.org.au>
Cc: klemscot@klements.com, freebsd-gnats-submit@FreeBSD.org
Subject: Re: i386/30965: Cyclades Cyclom-Yep causes FreeBSD to hang during
Date: Fri, 26 Oct 2001 14:48:59 +0200
Bruce Evans wrote:
>On Thu, 25 Oct 2001, Arjan Knepper wrote:
>
>>>
>>>--------<snipped>---------------------------------------------------------------------
>>>
>>> case PLX_9050:
>>> outw(ioport + CY_PLX_9050_ICS,
>>> inw(ioport + CY_PLX_9050_ICS) |
>>>CY_PLX_9050_ICS_IENABLE |
>>> CY_PLX_9050_ICS_LOCAL_IENABLE);
>>>--------<snipped>---------------------------------------------------------------------
>>>
>
>Sorry I didn't reply to this before.
>
>I think it locks up here just because this enables the interrupt, an
>interrupt occures immediately, and interrupt handling never completes.
>You could try putting printfs in the interrupt handler (cyintr()).
>Or using ddb, put breakpoints at interesting places in the interrupt
>handler and see if they are hit. The initial interesting places are
>the start of the interrupt handler (cyintr()) and when it returns (get
>the return address using a trace command).
>
>
>You could try the 0x41 -> 0x43 change easily.
>
Bruce,
I have have just done this and it seems to solve the problems. I have to
perform some test to make it sure.
Scott Klement,
Could you please try this?
Change the the lines from line 135-138 in /usr/src/sys/pci/cy_pci.c to:
--------<snipped>---------------------------------------------------------------------
case PLX_9050:
outw(ioport + CY_PLX_9050_ICS,
inw(ioport + CY_PLX_9050_ICS) |
CY_PLX_9050_ICS_IENABLE |
CY_PLX_9050_ICS_LOCAL_IENABLE | 0x02 );
--------<snipped>---------------------------------------------------------------------
Added '| 0x02' in line 138.
Thanks,
Arjan Knepper
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