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From: Wilko Bulte <wilko@FreeBSD.org>
Date: Sun, 28 May 2006 11:15:16 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: RELENG_6
Cc: 
Subject: cvs commit: src/sys/alpha/conf GENERIC
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wilko       2006-05-28 11:15:16 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/alpha/conf       GENERIC 
  Log:
  Remove GEOM_GPT.
  
  I encountered repeatable Unaligned access panics similar to:
  
  fatal kernel trap:
  
      trap entry     = 0x4 (unaligned access fault)
      cpuid          = 0
      faulting va    = 0xfffffc0000fae1c2
      opcode         = 0x28
      register       = 0x1
      pc             = 0xfffffc00004d07dc
      ra             = 0xfffffc00004d0a1c
      sp             = 0xfffffe0031875bc0
      curthread      = 0xfffffc007da237a0
          pid = 2, comm = g_event
  
  These occur when a floppy or a CD (the 6.1R install CD will do in most
  cases) is in the drive during boot.  A floppy or CD inserted *after*
  the system was booted did not give me this problem.  Interestingly
  enough booting from the 6.1-R install CD sometimes caused the crash,
  sometimes it did not.  When it did not panic an installation of 6.1-R
  was possible without any incidents.  A subsequent boot from HD with
  the CD still present sometimes(...) worked fine, sometimes paniced.
  
  Taking GEOM_GPT out of the kernel config file allows booting without
  incidents.  We do not need GPT on Alpha, so this is the easy way out.
  
  Discussed with: phk
  
  Revision   Changes    Path
  1.186.2.4  +0 -1      src/sys/alpha/conf/GENERIC