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Serious problem, something corrupt, help!



  My system has suddenly started puking... it is running right
now, but limping... I have had similar problems before, and I
want to track this down.

  grep dies with 'Aborted'
  su and mount die with a segfault

  Where should I start looking to track this? I changed nothing 
on the system before this happened... I've been too busy to have
screwed it up.

last few lines of strace on grep
pipe([3, 4])                            = 0
fork()                                  = 18062
--- SIGCHLD (Child exited) @ 0 (0) ---
read(3, "\376", 1)                      = 1
brk(0)                                  = 0x805aeb3
brk(0x807beb3)                          = 0x807beb3
brk(0)                                  = 0x807beb3
brk(0x807c000)                          = 0x807c000
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
getpid()                                = 18061
kill(18061, SIGABRT)                    = 0
--- SIGABRT (Aborted) @ 0 (0) ---
+++ killed by SIGABRT +++


last 10 lines of strace on su
fstat64(3, {st_mode=S_IFREG|0644, st_size=3875, ...}) = 0
mmap2(NULL, 3875, PROT_READ, MAP_SHARED, 3, 0) = 0x40016000
_llseek(3, 3875, [3875], SEEK_SET)      = 0
munmap(0x40016000, 3875)                = 0
close(3)                                = 0
rt_sigaction(SIGINT, {SIG_IGN}, {SIG_DFL}, 8) = 0
time(NULL)                              = 1067873964
getuid32()                              = 50039
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++


-- 
     www.suave.net - Anthony Ball - ant@suave.net
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