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    SubjectPROBLEM: DELL PERC/Megaraid RAID driver in Linux 2.2.17pre20 hang s on "Blocked mailbox......!!"

    [1.] Megaraid driver in Linux 2.2.17pre20 hangs on "Blocked

    [2.] Full description of the problem:

    After upgrading to Linux 2.2.17pre20, a medium loaded Squid proxy box
    running on a DELL 2300 with a PERC Megaraid card hangs completely in the
    megaraid driver. The server doesn't even respond to pings. However, the
    line "Blocked mailbox......!!" is written the console once every second.
    Running on 2.2.16 and previous versions works fine, but 2.2.17pre20
    hangs after 2-3 days uptime.

    [3.] Keywords: dell, ami, megaraid, raid, scsi, driver, mailbox

    [4.] Kernel version: 2.2.17pre20

    [5.] N/A

    [6.] N/A

    [7] Environment:

    DELL PERC Megaraid firmware U.81 Firmware 1.63
    DELL 2300

    [X.] Other notes:

    I am now running tests on the system using 2.2.18pre2 and Megaraid
    Firmware U.84. I'll follow up if this configuration has problems as

    SUGGESTION: It would be nice if the drivers would prefix their message
    with the driver name. "Mailbox blocked" does not make me think of a RAID

    The link to Dell's support site in the megaraid.c source takes me to the
    PERC/2 driver. It would be nice if there was a link to the updated
    PERC/1 driver as well.

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