From: seaney@robios.me.wisc.edu (Steve Seaney)
Newsgroups: comp.sys.sun.admin
Subject: Parity Error -- Crash
Date: 6 Apr 92 23:45:11 GMT
Article-I.D.: robios6.SEANEY.92Apr6184511
Distribution: comp
Organization: U. Wisconsin-Madison, Robotics Laboratory


One of our machines rebooted itself today.  The error messages are
below. Any ideas what could have caused this?  The machine is in a
room that gets a little warm (80 degrees). Could this be a bad memory
chip?

Thanks!
Steve

Apr  6 15:30:25 robios6 vmunix: Parity error reported at 0xf802b350, actual address is 0xf802b350.
Apr  6 15:30:25 robios6 vmunix: Parity Error, ctx = 0x7, virt addr = 0xf802b350
Apr  6 15:30:25 robios6 vmunix: pme = a300002b, phys addr = 2b350
Apr  6 15:30:25 robios6 vmunix: Parity Error Register 92<ERROR,CHECK,ERR16>
Apr  6 15:30:25 robios6 vmunix:  bad module/chip at: U587
Apr  6 15:30:25 robios6 vmunix: parity recovery: no page structure
Apr  6 15:30:25 robios6 vmunix: System operation cannot continue, will test location anyway.
Apr  6 15:30:25 robios6 vmunix: parity error at 2b350 is transient.
Apr  6 15:30:25 robios6 vmunix: panic: parity error
Apr  6 15:30:25 robios6 vmunix: sBAD TRAP
Apr  6 15:30:25 robios6 vmunix: pid 129, `update': Illegal instruction
Apr  6 15:30:25 robios6 vmunix: pc=0xf802b350, sp=0xf80ec988, psr=0x400ac3, context=0x7
Apr  6 15:30:25 robios6 vmunix: g1-g7: f810fc00, 200, 0, f3, f81dd000, f810e400, f810e400
Apr  6 15:30:25 robios6 vmunix: Begin traceback... sp = f80ec988
Apr  6 15:30:25 robios6 vmunix: Called from f8005f34, fp=f80ec9e8, args=f80b51f4 4000c5 f810a933 1 f810e000 f81730b8
Apr  6 15:30:25 robios6 vmunix: Called from f80c96e0, fp=f80eca90, args=d00 400de6 4000e6 ff64afa4 6 0
Apr  6 15:30:25 robios6 vmunix: Called from f8041054, fp=f80ecaf0, args=73 1c00 63000 0 24 4000e6
Apr  6 15:30:25 robios6 vmunix: Called from f8040774, fp=f80ecb50, args=f80ecbb9 17 5e0 0 1ff0 73
Apr  6 15:30:25 robios6 vmunix: Called from f80404f4, fp=f80ecc38, args=f80fd8c4 0 5 0 0 f80ecbd0
Apr  6 15:30:25 robios6 vmunix: Called from f80559d0, fp=f80ecc98, args=f80fd8ab ff009000 1 fff00050 ff00841c f80ecce0
Apr  6 15:30:25 robios6 vmunix: Called from f80c7938, fp=f80eccf8, args=400ae4 f810f800 ff02bb4c f810f800 ffffffff f810e098
Apr  6 15:30:25 robios6 vmunix: Called from f8040dc4, fp=f80ecd58, args=80 f810a28a f810a933 f810a28a f810e000 400ae4
Apr  6 15:30:25 robios6 vmunix: Called from f80cabd8, fp=f80ecdb8, args=f810a28a 2b000 0 f810a104 f802b360 f810a933
Apr  6 15:30:25 robios6 vmunix: Called from f80cbae0, fp=f80ece20, args=0 8 f802b350 1 f80ecef4 f810a28a
Apr  6 15:30:25 robios6 vmunix: Called from f8005b4c, fp=f80ece98, args=1 f80ecef4 f802b350 8 3 f81dcfb4
Apr  6 15:30:25 robios6 vmunix: Called from f802b34c, fp=f80ecf40, args=f80b5544 a f810fbd8 1 0 0
Apr  6 15:30:25 robios6 vmunix: Called from f8005f34, fp=f80ecfa0, args=f80b5544 4000c5 20080001 1 f81a6000 f8173088
Apr  6 15:30:25 robios6 vmunix: Called from 2044, fp=f81dcda0, args=1 f7ffffbc f7ffffc4 2400 0 0
Apr  6 15:30:25 robios6 vmunix: End traceback...
Apr  6 15:30:25 robios6 vmunix: panic: Illegal instruction
Apr  6 15:30:25 robios6 vmunix: 00000 low-memory static kernel pages
Apr  6 15:30:25 robios6 vmunix: 00644 additional static and sysmap kernel pages
Apr  6 15:30:25 robios6 vmunix: 00000 dynamic kernel data pages
Apr  6 15:30:25 robios6 vmunix: 00074 additional user structure pages
Apr  6 15:30:25 robios6 vmunix: 00000 segmap kernel pages
Apr  6 15:30:25 robios6 vmunix: 00000 segvn kernel pages
Apr  6 15:30:25 robios6 vmunix: 00002 current user process pages
Apr  6 15:30:25 robios6 vmunix: 00024 user stack pages
Apr  6 15:30:25 robios6 vmunix: 00744 total pages (744 chunks)
Apr  6 15:30:25 robios6 vmunix: 
Apr  6 15:30:25 robios6 vmunix: dumping to vp ff014f74, offset 56604
Apr  6 15:30:25 robios6 vmunix: 744 total pages, dump succeeded
Apr  6 15:30:25 robios6 vmunix: rebooting...

--
  seaney@cae.wisc.edu        *  University of Wisconsin - Madison             
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