On Thu, 3 May 2001, Bruce A. Mah wrote:
> If memory serves me right, Matthew Jacob wrote:
>
> > T-o-T about 24 hours ago:
>
> ???
Top of Tree
> > > acquiring duplicate lock of same type: "allproc"
> > > 1st @ /usr/src/sys/kern/kern_proc.c:609
> > > 2nd @ /usr/src/sys/kern/kern_proc.c:146
> > > lock order reversal
> > > 1st vnode interlock last acquired @ /usr/src/sys/ufs/ffs/ffs_vfsops.c:397
> > > 2nd 0xfffffc000080f218 mntvnode @ /usr/src/sys/ufs/ffs/ffs_vfsops.c:464
> > > 3rd 0xfffffe0026918080 vnode interlock @ /usr/src/sys/kern/vfs_subr.c:1881
>
> I saw something similar on my 5-CURRENT box built around 27 April. No
> core dumps that I know of. These showed up at boot time, shortly after
> my machine's SCSI devices were probed. From /var/log/messages:
>
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: da0: <SEAGATE ST39236LW 0004>
>Fixed Direct Access SCSI-3 device
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: da0: 80.000MB/s transfers
>(40.000MHz, offset 31, 16bit), Tagged Queueing Enabled
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: da0: 8761MB (17942584 512 byte
>sectors: 255H 63S/T 1116C)
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: lock order reversal
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 1st lockmgr interlock last
>acquired @ /usr/src/sys/kern/kern_lock.c:239
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 2nd 0xcb64665c process lock @
>/usr/src/sys/kern/kern_exit.c:542
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 3rd 0xc0e3f988 lockmgr interlock
>@ /usr/src/sys/kern/kern_lock.c:239
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: acquiring duplicate lock of same
>type: "allproc"
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 1st @
>/usr/src/sys/kern/kern_proc.c:607
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 2nd @
>/usr/src/sys/kern/kern_proc.c:144
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: lock order reversal
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 1st vnode interlock last
>acquired @ /usr/src/sys/kern/vfs_vnops.c:636
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 2nd 0xc050d060 mntvnode @
>/usr/src/sys/ufs/ffs/ffs_vfsops.c:975
> May 2 10:18:59 bmah-freebsd-1 /boot/kernel/kernel: 3rd 0xccf9c52c vnode interlock @
>/usr/src/sys/ufs/ffs/ffs_vfsops.c:984
> May 2 10:19:12 bmah-freebsd-1 ntpd[355]: ntpd 4.0.99b Fri Apr 27 16:43:30 PDT 2001
>(1)
> May 2 10:19:12 bmah-freebsd-1 ntpd[355]: using kernel phase-lock loop 2040
> May 2 10:19:12 bmah-freebsd-1 ntpd[355]: using kernel phase-lock loop 2041
>
> My machine is running a GENERIC kernel.
>
> Bruce.
>
>
>
>
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