Date: Mon, 06 Sep 1999 18:01:29 -0600 From: Greg Skafte <skafte@worldgate.ca> To: Greg Lehey <grog@lemis.com> Cc: Greg Skafte <skafte@worldgate.com>, freebsd-stable@freebsd.org Subject: Re: Vinum Kernel panic Message-ID: <37D455D9.DACFBF41@worldgate.ca> References: <19990902234148.A74752@valis.worldgate.ca> <19990903163713.K95378@freebie.lemis.com>
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Greg Lehey wrote:
>
> On Thursday, 2 September 1999 at 23:41:48 -0600, Greg Skafte wrote:
> > I just cvsuped Freebsd RELENG_3 this evening and vinum cause the following:
> >
> > Kernel Panic Fatal trap 12 page Fault while in kernel mode
> > Fault Virtual address= 0x10
> > Fault Code = supervisor read, page not present
> > Instruction Pointer = 0x8:0xc128a8bb
> > Stack Pointer = 0x10: 0xcc1e5c40
> > Frame Pointer = 0x10: 0xcc1e5c94
> > Code Segment = base 0x0, limit 0xffff, type 0x1b
> > = DPL 0, pres 1, def 321, gran 1
> > Processor eflags = int enabled, resume IOPL 0
> > Current Process = 16 (vinum)
> > interupt mask =
> > trap number = 12
> > Panic: page fault
> >
> > ----------------------Kerenel conf --------------------------
>
>
[ Stuff deleted ]
> That may or may not be related. Is this reproducible? Under what
it is very reproducible, it happens everytime, I just need to
reboot the machine with the offending version of vinum.
> circumstances? Are you using soft updates? We've seen one case that
I am using softupdates, but I'm not sure that is related because
I don't get as far as actually mounting any vinum fs'es.
> fits that bill, but it doesn't look quite like yours, and it hasn't
> shown up in -STABLE yet.
>
[ Stuff deleted]
> In view of the impending release of 3.3, I'm very interested in
> following up on this one. But I'm going to need more information from
> you.
>
Here is a BT from the panic....
(kgdb) bt
#0 0xc128b8bb in read_drive (drive=0xc134a000, buf=0xc134b000,
length=0x20000, offset=0x1200)
at /usr/src/sys/modules/vinum/../../dev/vinum/vinumio.c:298
#1 0xc128cc22 in vinum_scandisk (devicename=0xc129696c, drives=0x2)
at /usr/src/sys/modules/vinum/../../dev/vinum/vinumio.c:995
#2 0xc128a461 in parse_config (cptr=0xc127f000 "read",
keyset=0xc129684c, update=0x0)
at /usr/src/sys/modules/vinum/../../dev/vinum/vinumconfig.c:1514
#3 0xc128a4e8 in parse_user_config (cptr=0xc127f000 "read",
keyset=0xc129684c)
at /usr/src/sys/modules/vinum/../../dev/vinum/vinumconfig.c:1557
#4 0xc1291330 in vinumioctl (dev=0x40001901, cmd=0xc4004640,
data=0xc127f000 "read", flag=0x3,
p=0xcc1dd780)
at /usr/src/sys/modules/vinum/../../dev/vinum/vinumioctl.c:110
#5 0xc01632a7 in spec_ioctl (ap=0xcc1f1e1c) at
../../miscfs/specfs/spec_vnops.c:424
#6 0xc0162bb9 in spec_vnoperate (ap=0xcc1f1e1c) at
../../miscfs/specfs/spec_vnops.c:129
#7 0xc01ee235 in ufs_vnoperatespec (ap=0xcc1f1e1c) at
../../ufs/ufs/ufs_vnops.c:2317
#8 0xc015da25 in vn_ioctl (fp=0xc11eb100, com=0xc4004640,
data=0xc127f000 "read", p=0xcc1dd780)
at vnode_if.h:395
#9 0xc013e180 in ioctl (p=0xcc1dd780, uap=0xcc1f1f94) at
../../kern/sys_generic.c:564
#10 0xc021848f in syscall (frame={tf_es = 0x27, tf_ds = 0x27, tf_edi =
0x2, tf_esi = 0xbfbfd96c,
tf_ebp = 0xbfbfdd6c,
tf_isp = 0xcc1f1fe4, tf_ebx = 0x2, tf_edx = 0x808d7e4, tf_ecx =
0xbfbfd984, tf_eax = 0x36,
tf_trapno = 0xc,
tf_err = 0x2, tf_eip = 0x8068a60, tf_cs = 0x1f, tf_eflags = 0x246,
tf_esp = 0xbfbfd94c, tf
_ss = 0x27})
at ../../i386/i386/trap.c:1100
#11 0xc020d87c in Xint0x80_syscall ()
#12 0x8048517 in ?? ()
#13 0x8048351 in ?? ()
#14 0x80480ed in ?? ()
(kgdb) quit
The program is running. Exit anyway? (y or n) y
--
Email: skafte@worldgate.com Voice: +780 413 1910 Fax: +780 421 4929
#575 Sun Life Place * 10123 99 Street * Edmonton, AB * Canada * T5J 3H1
-- --
When things can't get any worse, they simplify themselves by getting a
whole lot worse then complicated. A complete and utter disaster is the
simplest thing in the world; it's preventing one that's complex.
(Janet Morris)
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