[Bug 15324] New: Random hard freezes with ATAPI drive on an SATA controller

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Tue Sep 13 12:35:07 UTC 2005

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Ubuntu | kernel-package

           Summary: Random hard freezes with ATAPI drive on an SATA
           Product: Ubuntu
           Version: unspecified
          Platform: i386
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel-package
        AssignedTo: ben.collins at ubuntu.com
        ReportedBy: ben_ubuntu at benroe.com
         QAContact: kernel-bugs at lists.ubuntu.com

About every couple of days, my laptop (Acer Travelmate 8104) locks up
completely. There is no pattern to what I'm doing at the time: it has happened
while I'm web browsing, using nautilus, reading email etc. The laptop itself is
perfectly stable and passes memtest etc. and all the devices apart from the
SD-card reader work fine.

The last time I saw these exact symptoms on my laptop was when I built a custom
kernel for Hoary with ATAPI enabled for libata, which enables DMA for my DVD
drive. The Breezy kernel seems to have this enabled, as DMA is working on the
drive AFAICS. SATA controller laptops with non-SATA DVD drives seem to be common
at the moment. At least one other person has seen these symptoms on a Dell
Inspiron 6000 as well, which I believe has a very similar chipset to my Acer:


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