resume and free vnode isn't.

[David Gilbert]

Dependably my Dell D800 will suspend, resume and then sometime later
crash with the following epitaph:

panic: getnewvnode: free vnode isn't
at line 738 in file ../../../kern/vfs_subr.c

The crash dump has the trace included below, but I believe the
corruption to be coming from the suspend/resume process not the
filesystem operation that panic's the machine.  The panic will occur a
random amount of time after the suspend/resume ... sometimes many
hours.  The nightly periodic scripts are almost certain to cause it.

(kgdb) bt
#0  doadump () at ../../../kern/kern_shutdown.c:240
#1  0xc054d373 in boot (howto=256) at ../../../kern/kern_shutdown.c:374
#2  0xc054d6f6 in __panic () at ../../../kern/kern_shutdown.c:552
#3  0xc05a75a6 in getnewvnode (tag=0xc06ff62e "ufs", mp=0x0, vops=0x0, vpp=0x0)
    at ../../../kern/vfs_subr.c:787
#4  0xc0632835 in ffs_vget (mp=0xc6341c00, ino=1907789, flags=2, 
    vpp=0xebb438dc) at ../../../ufs/ffs/ffs_vfsops.c:1268
#5  0xc0617310 in ffs_valloc (pvp=0xc8d30820, mode=33188, cred=0xc6be3800, 
    vpp=0xebb438dc) at ../../../ufs/ffs/ffs_alloc.c:861
#6  0xc0641819 in ufs_makeinode (mode=33188, dvp=0xc8d30820, vpp=0xebb43bf0, 
    cnp=0xebb43c04) at ../../../ufs/ufs/ufs_vnops.c:2358
#7  0xc063dd19 in ufs_create (ap=0xebb43a64)
    at ../../../ufs/ufs/ufs_vnops.c:199
#8  0xc0641f38 in ufs_vnoperate (ap=0x0) at ../../../ufs/ufs/ufs_vnops.c:2793
#9  0xc05b4fee in vn_open_cred (ndp=0xebb43bdc, flagp=0xebb43cdc, cmode=420, 
    cred=0xc6be3800, fdidx=0) at vnode_if.h:118
#10 0xc05b4e43 in vn_open (ndp=0x0, flagp=0x0, cmode=0, fdidx=0)
    at ../../../kern/vfs_vnops.c:93
#11 0xc05ae2ee in kern_open (td=0xc6a913f0, path=0x0, pathseg=UIO_USERSPACE, 
    flags=1538, mode=420) at ../../../kern/vfs_syscalls.c:963
#12 0xc05ae210 in open (td=0x0, uap=0x0) at ../../../kern/vfs_syscalls.c:933
#13 0xc06a8eb0 in syscall (frame=
      {tf_fs = 134742063, tf_es = 47, tf_ds = -1078001617, tf_edi = 134774824, tf_esi = 134779776, tf_ebp = -1077941432, tf_isp = -340509324, tf_ebx = 672608492, tf_edx = 134783816, tf_ecx = 0, tf_eax = 5, tf_trapno = 12, tf_err = 2, tf_eip = 672100911, tf_cs = 31, tf_eflags = 530, tf_esp = -1077941460, tf_ss = 47})
    at ../../../i386/i386/trap.c:1010
#14 0x280f722f in ?? ()
---Can't read userspace from dump, or kernel process---

Dave.

-- 
============================================================================
|David Gilbert, Independent Contractor.       | Two things can only be     |
|Mail:       dave at daveg.ca                    |  equal if and only if they |
|http://daveg.ca                              |   are precisely opposite.  |
=========================================================GLO================