>Number:         9491
>Category:       kern
>Synopsis:       during heavy nfs activity, machine paniced
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 26 14:33:01 2000
>Last-Modified:
>Originator:     matt
>Organization:
matt debergalis <deberg@mit.edu> KB1CTH
finger deberg@ai.mit.edu for PGP key
>Release:        1.4T
>Environment:
System: NetBSD northannex.deberg.org 1.4T NetBSD 1.4T (NORTHANNEX) #2: Mon Feb 21 20:10:51 PST 2000     root@northannex.deberg.org:/src/netbsd/src/sys/arch/i386/compile/NORTHANNEX i386

>Description:
	while building ssh with BSDSRCDIR and BSDOBJDIR both nfs mounted
	from a 1.4Q server, machine paniced.  crash dump/kernel
	available if somebody wants to poke around.

(gdb) bt
#0  0xc023b81b in vm_rfc1048 ()
#1  0x26ae000 in ?? ()
#2  0xc01ed163 in cpu_reboot (howto=256, bootstr=0x0)
    at ../../../../arch/i386/i386/machdep.c:1091
#3  0xc014a24c in log (level=-1071400933, fmt=0x0)
    at ../../../../kern/subr_prf.c:216
#4  0xc01f1a35 in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -985124012, 
      tf_esi = -984781188, tf_ebp = -984781272, tf_ebx = -1068742912, 
      tf_edx = -1068742912, tf_ecx = 0, tf_eax = -1068742900, tf_trapno = 6, 
      tf_err = 0, tf_eip = -1071891065, tf_cs = 8, tf_eflags = 66194, 
      tf_esp = -1068742912, tf_ss = -984781188, tf_vm86_es = -985124012, 
      tf_vm86_ds = -984781312, tf_vm86_fs = -985637204, 
      tf_vm86_gs = -985162616}) at ../../../../arch/i386/i386/trap.c:309
#5  0xc0100c6d in calltrap ()
#6  0xc01c3d71 in nfs_removeit (sp=0xc04c4700)
    at ../../../../nfs/nfs_vnops.c:1488
#7  0xc01b0a67 in nfs_inactive (v=0xc54d6e7c) at ../../../../nfs/nfs_node.c:214
#8  0xc016249f in vput (vp=0xc5405eac) at ../../../../sys/vnode_if.h:717
#9  0xc0168aae in vn_close (vp=0xc5405eac, flags=14, cred=0xc046f900, 
    p=0xc5479c88) at ../../../../kern/vfs_vnops.c:206
#10 0xc0169353 in vn_closefile (fp=0xc5347d80, p=0xc5479c88)
    at ../../../../kern/vfs_vnops.c:596
#11 0xc0139a30 in closef (fp=0xc5347d80, p=0xc5479c88)
    at ../../../../kern/kern_descrip.c:1081
#12 0xc0138f68 in fdrelease (p=0xc5479c88, fd=5)
    at ../../../../kern/kern_descrip.c:444
#13 0xc0138f8a in sys_close (p=0xc5479c88, v=0xc54d6f88, retval=0xc54d6f80)
    at ../../../../kern/kern_descrip.c:465
#14 0xc01f1f7d in syscall (frame={tf_es = 31, tf_ds = 31, tf_edi = 1542, 
      tf_esi = 134814213, tf_ebp = -1077946004, tf_ebx = 1542, 
      tf_edx = 134814720, tf_ecx = 134814213, tf_eax = 6, tf_trapno = 3, 
      tf_err = 2, tf_eip = 134722467, tf_cs = 23, tf_eflags = 582, 
      tf_esp = -1077946360, tf_ss = 31, tf_vm86_es = 0, tf_vm86_ds = 0, 
      tf_vm86_fs = 0, tf_vm86_gs = 0}) at ../../../../arch/i386/i386/trap.c:760
#15 0xc0100d19 in syscall1 ()
can not access 0xbfbfd96c, invalid translation (invalid PDE)
can not access 0xbfbfd96c, invalid translation (invalid PDE)
Cannot access memory at address 0xbfbfd96c.
(gdb) 



>How-To-Repeat:
	
>Fix:
	
>Audit-Trail:
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