DragonFly BSD
DragonFly bugs List (threaded) for 2005-04
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Re: machine got stuck in "[diagnostic] cache_lock: blocked on 0xe4008260 "ttyp8" after issuing reboot (after remote update from 1.2.0 to 1.2.1)

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Sun, 24 Apr 2005 09:14:46 -0700 (PDT)

:	I was remotely updating 1.2.0 machine to 1.2.1. Basically I compiled 
:world, compiled kernel, installed kernel and recompiled kernel again 
:with PF and ALTQ and installed it. After issuing reboot I could not 
:reconnect. After some driving I discovered that machine did not reboot 
:itself, because it got stuck (it was not hung!) in "[diagnostic] 
:cache_lock: blocked on 0xe4008260 "ttyp8".
:Basically output on screen was like this:
:"[diagnostic] cache_lock: blocked on 0xe4008260 "ttyp8"
:and stayed there - until I pressed Ctrl-Alt-Del:

    Something is holding onto a cache lock while blocked on ttyp8, which
    is not supposed to happen (but obviously did).  If this happens again,
    getting a kernel dump would give me exactly what I need to find and
    fix the problem.

					Matthew Dillon 

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