Date: Fri, 28 Jul 1995 09:58:03 +0200 (MET DST) From: Thomas Graichen <graichen@omega.physik.fu-berlin.de> To: bugs@freebsd.org Subject: detailed xdm-nfs-kernel crash report (was "3 ways ...") Message-ID: <9507280758.AA28321@omega.physik.fu-berlin.de>
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hello
here is now some more detailed information about my xdm-nfs-kernel crashes -
at first again the description (FreeBSD 2.0.5-RELEASE - but happend since the
january snaps - and maybe before - but i started with FreeBSD here in january):
* the system crashes then i log in (but not if root does this - it's
home is not mounted via nfs) - it only happens sometimes - but if - it will
happen at any i try to login after the system has rebooted after that panic -
loging in as root and doing a "su - myusername" then logout and login as me
works then
* /var/log/messages says:
julia /kernel: Fatal trap 12: page fault while in kernel mode
julia /kernel: fault virtual address = 0x38
julia /kernel: fault code = supervisor read, page not present
julia /kernel: instruction pointer = 0x8:0xf01274e2
julia /kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
julia /kernel: = DPL 0, pres 1, def32 1, gran 1
julia /kernel: processor eflags = interrupt enabled, resume, IOPL = 3
julia /kernel: current process = 180 (xdm)
julia /kernel: interrupt mask =
julia /kernel: panic: page fault
julia /kernel:
julia /kernel: syncing disks... 31 31 30 27 20 13 2 done
julia /kernel:
julia /kernel: dumping to dev 1, offset 98304
julia /kernel: dump 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
* nm /kernel says:
f0123bb0 F vfs_syscalls.o
f0127060 F vfs_vnops.o
f0148820 F vm_fault.o
* gdb -k kernel.0 vmcore.0 says:
root@julia /var/crash # gdb -k kernel.0 vmcore.0
GDB is free software and you are welcome to distribute copies of it
under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.13 (i386-unknown-freebsd),
Copyright 1994 Free Software Foundation, Inc...
IdlePTD 185000
current pcb at 17eba0
panic: page fault
#0 boot (arghowto=256) at ../../i386/i386/machdep.c:870
870 dumppcb.pcb_ptd = rcr3();
(kgdb) where
#0 boot (arghowto=256) at ../../i386/i386/machdep.c:870
#1 0xf010d413 in panic (fmt=0xf015af4c "page fault")
at ../../kern/subr_prf.c:128
#2 0xf015b9fe in trap_fatal (frame=0xefbffdd0) at ../../i386/i386/trap.c:688
#3 0xf015b570 in trap_pfault (frame=0xefbffdd0, usermode=0)
at ../../i386/i386/trap.c:610
#4 0xf015b237 in trap (frame={tf_es = 825098256, tf_ds = 806879248,
tf_edi = -261435264, tf_esi = 0, tf_ebp = -272630112,
tf_isp = -272630280, tf_ebx = 0, tf_edx = 2147483647,
tf_ecx = -2147483648, tf_eax = 0, tf_trapno = 12, tf_err = -261488640,
tf_eip = -267225886, tf_cs = 8, tf_eflags = 78470, tf_esp = 0,
tf_ss = -272629868}) at ../../i386/i386/trap.c:290
#5 0xf0154981 in calltrap ()
#6 0xf01245e3 in open (p=0xf06ae600, uap=0xefbfff94, retval=0xefbfff8c)
at ../../kern/vfs_syscalls.c:636
#7 0xf015bbe7 in syscall (frame={tf_es = -272695257, tf_ds = -272695257,
tf_edi = -272643812, tf_esi = -272643812, tf_ebp = -272644964,
tf_isp = -272629788, tf_ebx = 135798880, tf_edx = -1, tf_ecx = 98560,
tf_eax = 5,
* you may get kernel.0 and vmcore.0 together with my config-file JULIA and the
3 files i've changed from the standard 2.0.5-RELEASE source-tree (minor
changes: kern_sysctrl.c - netscape uname-patch, if_ether.c - commented the
logging of "arp info overwritten ..." out, lkm.h - the actual one from current
which avoids the kernel crashes while loading a misc module, loading it again
and unloading it) via ftp from (all compressed with gzip -9):
julia.physik.fu-berlin.de:/pub/freebsd/crash
* if you have any questions - please send me a mail - i'll try to give you any
information you need - i really would like to fix this problem - because we
depend on the fix
thanks in advance - t
_______________________________________________________||_____________________
__||
Perfection is reached, not when there is no __|| thomas graichen
longer anything to add, but when there __|| freie universitaet berlin
is no longer anything to take away __|| fachbereich physik
__||
- Antoine de Saint-Exupery - __||
___________________________||____email: graichen@omega.physik.fu-berlin.de____
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