Date: Fri, 18 Aug 2000 03:40:04 -0700 (PDT) From: Jonas Jochum <jonas.jochum@gmx.net> To: freebsd-bugs@FreeBSD.org Subject: Re: i386/20685: fbsd 4.1-stable crashed when compiling stuff or doing some i/o (network and disk) Message-ID: <200008181040.DAA70943@freefall.freebsd.org>
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The following reply was made to PR i386/20685; it has been noted by GNATS.
From: Jonas Jochum <jonas.jochum@gmx.net>
To: <sheldonh@FreeBSD.org>
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: i386/20685: fbsd 4.1-stable crashed when compiling stuff or doing some i/o (network and disk)
Date: Fri, 18 Aug 2000 12:34:31 +0200 (MEST)
IdlePTD 3776512
initial pcb at 2fba20
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x15
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0253568
stack pointer = 0x10:0xc7726e80
frame pointer = 0x10:0xc7726e88
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 11929 (pkg_info)
interrupt mask = none
trap number = 12
panic: page fault
syncing disks... 326 326 319 291 267 250 208 156 101 49
done
Uptime: 2h37m40s
0 boot (howto=256) at ../../kern/kern_shutdown.c:302
302 dumppcb.pcb_cr3 = rcr3();
(kgdb) where
#0 boot (howto=256) at ../../kern/kern_shutdown.c:302
#1 0xc0159d68 in poweroff_wait (junk=0xc02cb90f, howto=-949032320)
at ../../kern/kern_shutdown.c:552
#2 0xc0286485 in trap_fatal (frame=0xc7726e40, eva=21)
at ../../i386/i386/trap.c:927
#3 0xc028615d in trap_pfault (frame=0xc7726e40, usermode=0, eva=21)
at ../../i386/i386/trap.c:820
#4 0xc0285d2f in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16,
tf_edi = 672108544, tf_esi = 0, tf_ebp = -948801912,
tf_isp = -948801940, tf_ebx = -947292192, tf_edx = 1, tf_ecx =
1239613,
tf_eax = 33620, tf_trapno = 12, tf_err = 0, tf_eip = -1071303320,
tf_cs = 8, tf_eflags = 66050, tf_esp = 0, tf_ss = -948884608})
at ../../i386/i386/trap.c:426
#5 0xc0253568 in vm_page_lookup (object=0xc78977e0, pindex=0)
at ../../vm/vm_page.c:501
#6 0xc024bf88 in vm_fault (map=0xc7712b80, vaddr=672108544,
fault_type=3 '\003', fault_flags=8) at ../../vm/vm_fault.c:288
#7 0xc02860f2 in trap_pfault (frame=0xc7726fa8, usermode=1,
eva=672109440)
at ../../i386/i386/trap.c:800
#8 0xc0285c2f in trap (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 671653972, tf_esi = 672109440, tf_ebp = -1077941788,
tf_isp = -948801580, tf_ebx = 671485992, tf_edx = 671499008,
tf_ecx = 671436340, tf_eax = 671600640, tf_trapno = 12, tf_err = 7,
tf_eip = 671436346, tf_cs = 31, tf_eflags = 66050, tf_esp =
-1077941828,
tf_ss = 47}) at ../../i386/i386/trap.c:349
#9 0x28054e3a in ?? ()
#10 0x28052ba0 in ?? ()
#11 0x280517ab in ?? ()
I'm not at all familiar with debugging, so you have to tell me which
frames I have to look at ;)
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