[SUN] BAD TRAP: type=31 in module "ifb"

From: David Foster (foster@dim.ucsd.edu)
Date: Fri Oct 04 2002 - 16:57:56 EDT


Can anyone shed some light on this error message? My Ultra80
system (Solaris 8 10/01, latest recommended patches) has crashed
twice recently, and gives this message in /var/adm/messages:

Oct 4 12:33:14 donor unix: [ID 340138 kern.notice] BAD TRAP: type=31
rp=2a10082a960 addr=20 mmu_fsr=0 occurred in module "ifb" due to a NULL
pointer dereference
Oct 4 12:33:14 donor unix: [ID 100000 kern.notice]
Oct 4 12:33:15 donor unix: [ID 839527 kern.notice] Xsun:
Oct 4 12:33:15 donor unix: [ID 520581 kern.notice] trap type = 0x31
Oct 4 12:33:15 donor unix: [ID 381800 kern.notice] addr=0x20
Oct 4 12:33:15 donor unix: [ID 101969 kern.notice] pid=6024,
pc=0x1029eea8, sp=0x2a10082a201, tstate=0x44f0001600, context=0x672Oct 4
12:33:15 donor unix: [ID 743441 kern.notice] g1-g7: 1045c800, 4c, 0,
f4000000, c2006080, 0, 30008c79480
Oct 4 12:33:16 donor unix: [ID 100000 kern.notice]
Oct 4 12:33:16 donor genunix: [ID 723222 kern.notice] 000002a10082a580
unix:die+80 (31, 20, 10414fb8, 0, 2a10082a960, c85ce020)
Oct 4 12:33:16 donor genunix: [ID 179002 kern.notice] %l0-3:
0000000000000008 ffffffffffffffff 0000030000312000 000000000000004c
Oct 4 12:33:16 donor %l4-7: 00000300002c0888 0000000000000000
0000000000000000 0000000000000000

  =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   David Foster National Center for Microscopy and Imaging Research
    Programmer/Analyst University of California, San Diego
    dfoster@ucsd.edu Department of Neuroscience, Mail 0608
    (858) 534-7968 http://ncmir.ucsd.edu/
  =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

   "The reasonable man adapts himself to the world; the unreasonable one
   persists in trying to adapt the world to himself. Therefore, all progress
   depends on the unreasonable." -- George Bernard Shaw
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