From owner-freebsd-alpha  Wed Jan 24  8:58: 1 2001
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Date: Wed, 24 Jan 2001 08:57:32 -0800 (PST)
From: Matthew Jacob <mjacob@feral.com>
Reply-To: mjacob@feral.com
To: Andrew Gallatin <gallatin@cs.duke.edu>
Cc: John Baldwin <jhb@FreeBSD.ORG>, freebsd-alpha@FreeBSD.ORG
Subject: RE: -current failing on PC164
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No, I use a serial console.


On Wed, 24 Jan 2001, Andrew Gallatin wrote:

> 
> John Baldwin writes:
>  > 
>  > On 24-Jan-01 Andrew Gallatin wrote:
>  > > 
>  > > Bernd's problem was an unaligned access error, probably in the
>  > > witness
>  > > or mutex debug code.  This (probably) has nothing to do with pmap
>  > > problems.
>  > 
>  > No, they were the fault of my own stupidity. :-P  I bothced some
>  > KASSERT()'s.  *sigh*
> 
> 
> 
> FWIW, I built a kernel this morning with the following debugging
> options to try to duplicate Bernd's problems:
> 
> options         DIAGNOSTIC
> options         MUTEX_DEBUG
> options         WITNESS
> options         INVARIANTS
> options         INVARIANT_SUPPORT
> options         KTR
> options         KTR_EXTEND
> options         KTR_ENTRIES=1024
> 
> When booting, I see this:
> 
> Timecounter "alpha"  frequency 598973881 Hz
> dc0 XXX: driver didn't initialize queue mtx
> re-initing existing mutex dc
> fxp0 XXX: driver didn't initialize queue mtx
> re-initing existing mutex fxp
> lo0 XXX: driver didn't initialize queue mtx
> re-initing existing mutex lo
> ad0: 6149MB <Maxtor 90651U2> [12495/16/63] at ata0-master UDMA33
> acd0: CDROM <CD-ROM CDU4011> at ata1-master using PIO4
> (noperiph:sym0:0:-1:-1): SCSI BUS reset delivered.
> Mounting root from ufs:/dev/da0a
> da0 at sym0 bus 0 target 0 lun 0
> da0: <SEAGATE ST39140W 1498> Fixed Direct Access SCSI-2 device 
> da0: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing Enabled
> da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
> panic: mutex_enter(sio:1, MTX_SPIN) out of order @ ../../isa/sio.c:2287 already holding sched lock:2
> 
> syncing disks... 
> done
> Uptime: 6s
> 
> 
> So, are serial console's hosed??
> 
> Drew
> 
> 
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