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    SubjectRE: [git patches] libata fixes
    Date
    Just one point that may be interesting, as it seems that this is IRQ
    related : at the beginning of the dmesg, it seems that IRQ16 is used
    for sky2/Yukon , but when reading /proc/interrupts, it has been remapped
    to IRQ 505... Could this also affect libata ?

    Regards,
    Paul

    Paul Rolland, rol(at)as2917.net
    ex-AS2917 Network administrator and Peering Coordinator

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    > -----Original Message-----
    > From: linux-kernel-owner@vger.kernel.org
    > [mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of Paul Rolland
    > Sent: Sunday, March 11, 2007 7:35 PM
    > To: 'Linus Torvalds'
    > Cc: 'Tejun Heo'; 'Jeff Garzik'; 'Andrew Morton';
    > linux-ide@vger.kernel.org; 'LKML'; 'Eric D. Mudama'
    > Subject: RE: [git patches] libata fixes
    >
    > Hello,
    >
    > > do I understand correctly that the *only* difference between
    > > the working
    > > setup is that you applied (by hand) the libata patch that
    > > Jeff sent out?
    > >
    > > So plain 2.6.21-rc2 works fine, but with the patch applied,
    > > you get no
    > > interrupts on the DVD drive?
    >
    > Nope... I tried several patches from Tejun, and also some
    > that Jeff posted
    > to linux-ide, but no luck. The only way to have this DVD-RW
    > working is to
    > use irqpoll on the command line...
    >
    > Sorry to have been unclear....
    >
    > To complete, here are some more output from the machine :
    > - a dmesg without irqpoll,
    > - a dmesg with irqpoll,
    > - a copy of /proc/interrupts
    > 6 [19:33] rol@riri:~> cat /proc/interrupts
    > CPU0 CPU1
    > 0: 357022 0 IO-APIC-edge timer
    > 1: 8 0 IO-APIC-edge i8042
    > 4: 14 0 IO-APIC-edge serial
    > 6: 5 0 IO-APIC-edge floppy
    > 8: 1 0 IO-APIC-edge rtc
    > 9: 0 0 IO-APIC-fasteoi acpi
    > 12: 129 0 IO-APIC-edge i8042
    > 14: 7639 0 IO-APIC-edge libata
    > 15: 0 0 IO-APIC-edge libata
    > 16: 0 0 IO-APIC-fasteoi libata
    > 17: 0 0 IO-APIC-fasteoi uhci_hcd:usb3
    > 18: 0 0 IO-APIC-fasteoi uhci_hcd:usb4
    > 19: 204 0 IO-APIC-fasteoi uhci_hcd:usb5,
    > HDA Intel
    > 20: 107 0 IO-APIC-fasteoi ehci_hcd:usb1,
    > uhci_hcd:usb2
    > 21: 3 0 IO-APIC-fasteoi ohci1394
    > 504: 8243 0 PCI-MSI-edge libata
    > 505: 1 0 PCI-MSI-edge eth1
    > 506: 386 0 PCI-MSI-edge eth0
    > NMI: 771 531
    > LOC: 569318 578684
    > ERR: 0
    >
    > Regards,
    > Paul
    >

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