Date: Tue, 26 Sep 2006 22:50:20 GMT From: "Josh Carroll" <josh.carroll@psualum.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/103602: atapi device not working on JMicron 363 Controller Message-ID: <200609262250.k8QMoKaV001144@freefall.freebsd.org>
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The following reply was made to PR kern/103602; it has been noted by GNATS. From: "Josh Carroll" <josh.carroll@psualum.com> To: "Thomas Quinot" <thomas@freebsd.org> Cc: FreeBSD-gnats-submit@freebsd.org, greg@rowes.org Subject: Re: kern/103602: atapi device not working on JMicron 363 Controller Date: Tue, 26 Sep 2006 15:40:44 -0700 > This report is not completely clear to me. Do you get the same problem > if you use the same DVD drive on a different controller? Do you get it > if you use another DVD drive on the Jmicron controller? I get the same errors with 3 other DVD devices (including an SATA drive). I get the same errors with a different PCI IDE controller as well, yes. > OK, so we have at least one issue here where ATAPI/CAM is completely out > of the picture. Is this particular problem fixed by disabling DMA? Yes, disabling DMA is a workaround and the problem is "fixed". > What about dd'ing /dev/cd0 as above? Also, can you try that with CAM > debugging options enabled (man 4 cam)? I will try with /dev/cd0 (without atapicam), and will try with atapicam enabled and with the CAM debug options and provide that info. > Does this problem show up with 6-STABLE prior to that date? Unfortunately, I cannot test it prior since the Intel ICH8 controller is not supported in earlier versions of -STABLE. However, copying in that ata code from -STABLE into the 6.1-RELEASE kernel tree and compiling that fails, but with a different error: interrupt storm detected on irq11: throttling interrupt source I will try the CAM debug options and /dev/cd0 and report back. Thanks! Josh
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