DragonFly bugs List (threaded) for 2007-10
DragonFly BSD
DragonFly bugs List (threaded) for 2007-10
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Re: [diagnostic] cache_lock: blocked on 0xe29c3b08 ""


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 31 Oct 2007 23:31:50 -0700 (PDT)

:
:
::Following [diagnostic] cache_lock: blocked on 0xe29c3b08 "quota.user" in dmesg and /var/log/messages. System almost completely hangs; I am unable to create a new shell, enter commands, etc (or even reboot). Kernel options are SMP, IO_APIC, and QUOTA. The bug appears to manifest itself after applying userquota to a filesystem, mounting it, and then issuing a few commands like mkdir/chmod/etc on it. System is a dual processor Opteron 248.
:
:    I'll try to reproduce this one today.    It sounds like it ought to be
:    easy to figure out.
:
:					-Matt

    I haven't had any luck reproducing it yet.  Could you give me a
    test script to run that will reproduce the problem?  Also, are you
    doing your tests as root or as a user ?

    Alternatively if you can get a kernel core and a kgdb backtrace of one
    of the stuck processes I can probably figure out what is going on from
    there.

						-Matt




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