From owner-freebsd-stable  Mon Oct  4 11:37: 0 1999
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From: David Gilbert <dgilbert@velocet.ca>
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Date: Mon, 4 Oct 1999 14:36:46 -0400 (EDT)
To: freebsd-stable@freebsd.org
Subject: Many similar crashes...
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On one busy webserver that I recently upgraded, I'm getting many
similar crashes, some only minutes apart.  They all tend to be 'page
falut in kernel mode' or some other vm-related thing.  Here is an
example:

(kgdb) bt
#0  boot (howto=256) at ../../kern/kern_shutdown.c:285
#1  0xc014c469 in panic (fmt=0xc01febee "page fault")
    at ../../kern/kern_shutdown.c:446
#2  0xc01d6cd2 in trap_fatal (frame=0xca1aaeac, eva=0)
    at ../../i386/i386/trap.c:942
#3  0xc01d698b in trap_pfault (frame=0xca1aaeac, usermode=0, eva=0)
    at ../../i386/i386/trap.c:835
#4  0xc01d65be in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1053208397, 
      tf_esi = -1053475776, tf_ebp = -904220952, tf_isp = -904220972, 
      tf_ebx = -1053475776, tf_edx = -1053475840, tf_ecx = -905398784, 
      tf_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip = -1072385498, tf_cs = 8, 
      tf_eflags = 66118, tf_esp = -904220936, tf_ss = -1072411161})
    at ../../i386/i386/trap.c:437
#5  0xc014b226 in crfree (cr=0x0) at ../../kern/kern_prot.c:802
#6  0xc0144de7 in ffree (fp=0xc1353c40) at ../../kern/kern_descrip.c:847
#7  0xc01451dc in closef (fp=0xc1353c40, p=0xca08b600)
    at ../../kern/kern_descrip.c:1068
#8  0xc014481d in close (p=0xca08b600, uap=0xca1aaf94)
    at ../../kern/kern_descrip.c:504
#9  0xc01d6f1b in syscall (frame={tf_es = 39, tf_ds = 39, 
      tf_edi = -1077944880, tf_esi = 3, tf_ebp = -1077945068, 
      tf_isp = -904220700, tf_ebx = 134929348, tf_edx = 222477596, 
      tf_ecx = 3251, tf_eax = 6, tf_trapno = 12, tf_err = 2, 
      tf_eip = 672921360, tf_cs = 31, tf_eflags = 514, tf_esp = -1077945076, 
      tf_ss = 39}) at ../../i386/i386/trap.c:1100
#10 0xc01cc49c in Xint0x80_syscall ()
#11 0x80adb06 in ?? ()
#12 0x80ac33c in ?? ()
#13 0x80bbc73 in ?? ()
#14 0x80bc5ff in ?? ()
#15 0x806539d in ?? ()


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