Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Ion-Mihai Tetcu
On Mon, 23 Jan 2006 17:50:25 +0300
Gleb Smirnoff <[EMAIL PROTECTED]> wrote:

> On Mon, Jan 23, 2006 at 04:44:53PM +0200, Ion-Mihai Tetcu wrote:
> I> > Probably you hit another incorrect KASSERT in kern_mbuf.c. I have
> I> > removed it some time after the first one. Since X was starting at
> I> > this moment you couldn't be dropped into debugger, and so the
> I> > box was rebooting.
> I> 
> I> I don't know if I understand you right, but starting a bare X and
> I> playing around for a while then typing startkde resulted in a
> I> reset.
> 
> When panic happens and you have X on the screen, the kernel can't
> switch to syscons. It dumps core if you have KDB_UNATTENDED in
> kernel, in other case it just reboots.

I don't have KDB_UNATTENDED but on this machine the in the last week I
got an automatic dump (on a "kmem_map too small" while running an RC1
kernel) and then the reboot and I was under X (kde); I remember I had
to wait and watch the HDD led w/o being able to do anything else.


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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Gleb Smirnoff
On Mon, Jan 23, 2006 at 04:44:53PM +0200, Ion-Mihai Tetcu wrote:
I> > Probably you hit another incorrect KASSERT in kern_mbuf.c. I have
I> > removed it some time after the first one. Since X was starting at
I> > this moment you couldn't be dropped into debugger, and so the box was
I> > rebooting.
I> 
I> I don't know if I understand you right, but starting a bare X and
I> playing around for a while then typing startkde resulted in a reset.

When panic happens and you have X on the screen, the kernel can't switch
to syscons. It dumps core if you have KDB_UNATTENDED in kernel, in other
case it just reboots.

-- 
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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Ion-Mihai Tetcu
On Mon, 23 Jan 2006 17:39:56 +0300
Gleb Smirnoff <[EMAIL PROTECTED]> wrote:

> On Mon, Jan 23, 2006 at 04:35:07PM +0200, Ion-Mihai Tetcu wrote:
> I> > On Mon, Jan 23, 2006 at 04:27:09PM +0200, Ion-Mihai Tetcu wrote:
> I> > I> > On Sun, Jan 22, 2006 at 11:58:54PM +0200, Ion-Mihai Tetcu
> I> > I> > wrote:
> I> > I> > I> > On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff
> I> > I> > I> > wrote:
> I> > I> > I> > > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb
> I> > I> > I> > > Smirnoff wrote:
> I> > I> > I> > > T>   This should be fixed in src/sys/kern_mbuf.c,
> I> > I> > I> > > T> rev. 1.9.2.3
> I> > I> > I> > > 
> I> > I> > I> > > And another bogus panic is removed in 1.9.2.4
> I> > I> > I> > > 
> I> > I> > I> > 
> I> > I> > I> > The kernel is working again, thanks!
> I> > I> > I> 
> I> > I> > I> It's working in regard of vr0, thank you. However now my
> I> > I> > I> computer resets w/o anything logged when starting kde;
> I> > I> > I> if I only startx it doesn't happen (without exec startkde
> I> > I> > I> in .xinitrc); I commented out any fancy options like dri
> I> > I> > I> with no effect and it also happen if I kldunload
> I> > I> > I> snd_via8233 before starting kde.
> I> > I> > I> 
> I> > I> > I> This is with 1.9.2.3 (cvsupped around 21 to 22 midnight;
> I> > I> > I> it didn't happen with sources from 19. 
> I> > I> > 
> I> > I> > Bad news. Can you do a binary search and find commit that
> I> > I> > makes this regression?
> I> > I> 
> I> > I> FreeBSD 6.0-STABLE #1: Mon Jan 23 00:45:10 EET 2006
> I> > I> works:)
> I> > 
> I> > So upgrading once more did help you?
> I> 
> I> So it seem. I am using ULE, I have no problem with the new kernel
> I> with either UL or 4BSD. I didn't test the "bad" kernel with 4BSD,
> I> but I could do it if you like.
> 
> Probably you hit another incorrect KASSERT in kern_mbuf.c. I have
> removed it some time after the first one. Since X was starting at
> this moment you couldn't be dropped into debugger, and so the box was
> rebooting.

I don't know if I understand you right, but starting a bare X and
playing around for a while then typing startkde resulted in a reset.


-- 
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  "Intellectual Property" is   nowhere near as valuable   as "Intellect"

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 Whisper your way to success.
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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Gleb Smirnoff
On Mon, Jan 23, 2006 at 04:35:07PM +0200, Ion-Mihai Tetcu wrote:
I> > On Mon, Jan 23, 2006 at 04:27:09PM +0200, Ion-Mihai Tetcu wrote:
I> > I> > On Sun, Jan 22, 2006 at 11:58:54PM +0200, Ion-Mihai Tetcu wrote:
I> > I> > I> > On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff
I> > I> > I> > wrote:
I> > I> > I> > > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff
I> > I> > I> > > wrote:
I> > I> > I> > > T>   This should be fixed in src/sys/kern_mbuf.c, rev.
I> > I> > I> > > T> 1.9.2.3
I> > I> > I> > > 
I> > I> > I> > > And another bogus panic is removed in 1.9.2.4
I> > I> > I> > > 
I> > I> > I> > 
I> > I> > I> > The kernel is working again, thanks!
I> > I> > I> 
I> > I> > I> It's working in regard of vr0, thank you. However now my
I> > I> > I> computer resets w/o anything logged when starting kde; if I
I> > I> > I> only startx it doesn't happen (without exec startkde
I> > I> > I> in .xinitrc); I commented out any fancy options like dri with
I> > I> > I> no effect and it also happen if I kldunload snd_via8233
I> > I> > I> before starting kde.
I> > I> > I> 
I> > I> > I> This is with 1.9.2.3 (cvsupped around 21 to 22 midnight; it
I> > I> > I> didn't happen with sources from 19. 
I> > I> > 
I> > I> > Bad news. Can you do a binary search and find commit that makes
I> > I> > this regression?
I> > I> 
I> > I> FreeBSD 6.0-STABLE #1: Mon Jan 23 00:45:10 EET 2006  works:)
I> > 
I> > So upgrading once more did help you?
I> 
I> So it seem. I am using ULE, I have no problem with the new kernel with
I> either UL or 4BSD. I didn't test the "bad" kernel with 4BSD, but I
I> could do it if you like.

Probably you hit another incorrect KASSERT in kern_mbuf.c. I have removed
it some time after the first one. Since X was starting at this moment you
couldn't be dropped into debugger, and so the box was rebooting.

-- 
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE
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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Ion-Mihai Tetcu
On Mon, 23 Jan 2006 11:05:25 +0300
Gleb Smirnoff <[EMAIL PROTECTED]> wrote:

> On Sun, Jan 22, 2006 at 11:58:54PM +0200, Ion-Mihai Tetcu wrote:
> I> > On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff wrote:
> I> > > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff wrote:
> I> > > T>   This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3
> I> > > 
> I> > > And another bogus panic is removed in 1.9.2.4
> I> > > 
> I> > 
> I> > The kernel is working again, thanks!
> I> 
> I> It's working in regard of vr0, thank you. However now my computer
> I> resets w/o anything logged when starting kde; if I only startx it
> I> doesn't happen (without exec startkde in .xinitrc); I commented
> I> out any fancy options like dri with no effect and it also happen
> I> if I kldunload snd_via8233 before starting kde.
> I> 
> I> This is with 1.9.2.3 (cvsupped around 21 to 22 midnight; it didn't
> I> happen with sources from 19. 
> 
> Bad news. Can you do a binary search and find commit that makes this
> regression?

FreeBSD 6.0-STABLE #1: Mon Jan 23 00:45:10 EET 2006  works:)


-- 
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Root nameservers are out of sync


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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Ion-Mihai Tetcu
On Mon, 23 Jan 2006 17:31:47 +0300
Gleb Smirnoff <[EMAIL PROTECTED]> wrote:

> On Mon, Jan 23, 2006 at 04:27:09PM +0200, Ion-Mihai Tetcu wrote:
> I> > On Sun, Jan 22, 2006 at 11:58:54PM +0200, Ion-Mihai Tetcu wrote:
> I> > I> > On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff
> I> > I> > wrote:
> I> > I> > > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff
> I> > I> > > wrote:
> I> > I> > > T>   This should be fixed in src/sys/kern_mbuf.c, rev.
> I> > I> > > T> 1.9.2.3
> I> > I> > > 
> I> > I> > > And another bogus panic is removed in 1.9.2.4
> I> > I> > > 
> I> > I> > 
> I> > I> > The kernel is working again, thanks!
> I> > I> 
> I> > I> It's working in regard of vr0, thank you. However now my
> I> > I> computer resets w/o anything logged when starting kde; if I
> I> > I> only startx it doesn't happen (without exec startkde
> I> > I> in .xinitrc); I commented out any fancy options like dri with
> I> > I> no effect and it also happen if I kldunload snd_via8233
> I> > I> before starting kde.
> I> > I> 
> I> > I> This is with 1.9.2.3 (cvsupped around 21 to 22 midnight; it
> I> > I> didn't happen with sources from 19. 
> I> > 
> I> > Bad news. Can you do a binary search and find commit that makes
> I> > this regression?
> I> 
> I> FreeBSD 6.0-STABLE #1: Mon Jan 23 00:45:10 EET 2006  works:)
> 
> So upgrading once more did help you?

So it seem. I am using ULE, I have no problem with the new kernel with
either UL or 4BSD. I didn't test the "bad" kernel with 4BSD, but I
could do it if you like.


-- 
IOnut - Unregistered ;) FreeBSD "user"
  "Intellectual Property" is   nowhere near as valuable   as "Intellect"

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the xy axis in the trackball is coordinated with the summer solstice


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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Gleb Smirnoff
On Mon, Jan 23, 2006 at 04:27:09PM +0200, Ion-Mihai Tetcu wrote:
I> > On Sun, Jan 22, 2006 at 11:58:54PM +0200, Ion-Mihai Tetcu wrote:
I> > I> > On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff wrote:
I> > I> > > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff wrote:
I> > I> > > T>   This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3
I> > I> > > 
I> > I> > > And another bogus panic is removed in 1.9.2.4
I> > I> > > 
I> > I> > 
I> > I> > The kernel is working again, thanks!
I> > I> 
I> > I> It's working in regard of vr0, thank you. However now my computer
I> > I> resets w/o anything logged when starting kde; if I only startx it
I> > I> doesn't happen (without exec startkde in .xinitrc); I commented
I> > I> out any fancy options like dri with no effect and it also happen
I> > I> if I kldunload snd_via8233 before starting kde.
I> > I> 
I> > I> This is with 1.9.2.3 (cvsupped around 21 to 22 midnight; it didn't
I> > I> happen with sources from 19. 
I> > 
I> > Bad news. Can you do a binary search and find commit that makes this
I> > regression?
I> 
I> FreeBSD 6.0-STABLE #1: Mon Jan 23 00:45:10 EET 2006  works:)

So upgrading once more did help you?

-- 
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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-23 Thread Gleb Smirnoff
On Sun, Jan 22, 2006 at 11:58:54PM +0200, Ion-Mihai Tetcu wrote:
I> > On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff wrote:
I> > > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff wrote:
I> > > T>   This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3
I> > > 
I> > > And another bogus panic is removed in 1.9.2.4
I> > > 
I> > 
I> > The kernel is working again, thanks!
I> 
I> It's working in regard of vr0, thank you. However now my computer
I> resets w/o anything logged when starting kde; if I only startx it
I> doesn't happen (without exec startkde in .xinitrc); I commented out any
I> fancy options like dri with no effect and it also happen if I kldunload
I> snd_via8233 before starting kde.
I> 
I> This is with 1.9.2.3 (cvsupped around 21 to 22 midnight; it didn't
I> happen with sources from 19. 

Bad news. Can you do a binary search and find commit that makes this
regression?

-- 
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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-22 Thread Ion-Mihai Tetcu
On Sun, 22 Jan 2006 15:16:24 +0100
Christian Brueffer <[EMAIL PROTECTED]> wrote:

> On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff wrote:
> > On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff wrote:
> > T>   This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3
> > 
> > And another bogus panic is removed in 1.9.2.4
> > 
> 
> The kernel is working again, thanks!

It's working in regard of vr0, thank you. However now my computer
resets w/o anything logged when starting kde; if I only startx it
doesn't happen (without exec startkde in .xinitrc); I commented out any
fancy options like dri with no effect and it also happen if I kldunload
snd_via8233 before starting kde.

This is with 1.9.2.3 (cvsupped around 21 to 22 midnight; it didn't
happen with sources from 19. 


-- 
IOnut - Unregistered ;) FreeBSD "user"
  "Intellectual Property" is   nowhere near as valuable   as "Intellect"

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Big to little endian conversion error


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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-22 Thread Christian Brueffer
On Sun, Jan 22, 2006 at 04:17:12PM +0300, Gleb Smirnoff wrote:
> On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff wrote:
> T>   This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3
> 
> And another bogus panic is removed in 1.9.2.4
> 

The kernel is working again, thanks!

- Christian

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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-22 Thread Gleb Smirnoff
On Sat, Jan 21, 2006 at 03:09:02PM +0300, Gleb Smirnoff wrote:
T>   This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3

And another bogus panic is removed in 1.9.2.4

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Re: panic: mb_dtor_mbuf: M_EXT set

2006-01-21 Thread Gleb Smirnoff
  This should be fixed in src/sys/kern_mbuf.c, rev. 1.9.2.3

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panic: mb_dtor_mbuf: M_EXT set

2006-01-21 Thread Christian Brueffer
Hi,

got the following panic at boot after an update to RELENG_6 from
about 22:00 CET on an i386 SMP system.  As this is fully repdoducible,
I can provide more info if needed.


panic: mb_dtor_mbuf: M_EXT set
cpuid = 0
KDB: enter: panic
[thread pid 230 tid 100073 ]
Stopped at  kdb_enter+0x30: leave   
db> tr
Tracing pid 230 tid 100073 td 0xc3621300
kdb_enter(c07c0f49,0,c07bf27a,d7769a78,c3621300) at kdb_enter+0x30
panic(c07bf27a,c079477c,c07c285c,1,c374f000) at panic+0x14e
mb_dtor_mbuf(c374f000,100,0,956,0) at mb_dtor_mbuf+0x4a
uma_zfree_arg(c1050b40,c374f000,0) at uma_zfree_arg+0x2f
mb_free_ext(c374f000,0,0,0,d7769b18) at mb_free_ext+0x19a
m_freem(c374f000,0,c09623ca,5cc,c3401400) at m_freem+0x29
sf_stop(c33eb680,1,c09623ca,4c7,4ba) at sf_stop+0x125
sf_init_locked(c33eb74c,0,c09623ca,4ba,c3401400) at sf_init_locked+0x4d
sf_init(c33eb700,c083b840,1,8020690c,c3737b00) at sf_init+0x39
ether_ioctl(c3401400,8020690c,c3737b00,529,0) at ether_ioctl+0x67
sf_ioctl(c3401400,8020690c,c3737b00,c3737b7c,1) at sf_ioctl+0x10c
in_ifinit(c3401400,c3737b00,c363d150,0,1) at in_ifinit+0x208
in_control(c373c858,8040691a,c363d140,c3401400,c3621300) at in_control+0x986
ifioctl(c373c858,8040691a,c363d140,c3621300,2) at ifioctl+0x1cd
soo_ioctl(c3697990,8040691a,c363d140,c3306780,c3621300) at soo_ioctl+0x3ef
ioctl(c3621300,d7769d04,c,41d,3) at ioctl+0x45d
syscall(3b,3b,3b,8058ba0,1) at syscall+0x2c0
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x2814d287, esp = 0xbfbfe5fc, ebp 
= 0xbfbfee68 ---
db>

- Christian

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6-STABLE from 19: panic: mb_dtor_mbuf: M_EXT set

2006-01-20 Thread Ion-Mihai Tetcu
Hi,


On ifconfig vr0 up I get each time a the panic bellow; last good kernel
I have is from Dec 31 and if_vr hasn't been touched since November.



 # kgdb /usr/obj/usr/src/sys/IT6_U/kernel.debug /usr/crash/vmcore.4
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: 
Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or 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.
This GDB was configured as "i386-marcel-freebsd".

Unread portion of the kernel message buffer:

 [ ... ]

vr0:  port 0xe400-0xe4ff mem 
0xe3004000-0xe30040ff irq 23 at device 18.0 on pci0
vr0: Reserved 0x100 bytes for rid 0x10 type 4 at 0xe400
miibus0:  on vr0
ukphy0:  on miibus0
ukphy0: OUI 0x004063, model 0x0032, rev. 10
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
vr0: bpf attached
vr0: Ethernet address: 00:0f:ea:0a:96:11
ioapic0: routing intpin 23 (PCI IRQ 23) to cluster 0
vr0: [MPSAFE]
pci1: driver added
found-> vendor=0x1002, dev=0x4966, revid=0x01
bus=1, slot=0, func=0
class=03-00-00, hdrtype=0x00, mfdev=0
cmdreg=0x0087, statreg=0x02b0, cachelnsz=8 (dwords)
lattimer=0x20 (960 ns), mingnt=0x08 (2000 ns), maxlat=0x00 (0 ns)
intpin=a, irq=16
powerspec 2  supports D0 D1 D2 D3  current D0
pci1:0:0: reprobing on driver added
<118>#
<118>vr0: flags=8802 mtu 1500
<118>   ether 00:0f:ea:0a:96:11
<118>   media: Ethernet autoselect (none)
<118>   status: no carrier
<118>#
<118>vr0: flags=8802 mtu 1500
<118>   ether 00:0f:ea:0a:96:11
<118>   media: Ethernet autoselect (none)
<118>   status: no carrier
<118>#
panic: mb_dtor_mbuf: M_EXT set
KDB: stack backtrace:
panic(c066952c,c0650ac0,c1035048,c4d44300,e5049b14) at panic+0x13a
mb_dtor_pack(c4d44300,100,0,956,c10383c0) at mb_dtor_pack
uma_zfree_arg(c104de80,c4d44300,0,c4da7934) at uma_zfree_arg+0x36a
mb_free_ext(c4d44300,c4c01400,c4da7000,c4da7000,e5049b74) at mb_free_ext+0x8f
m_freem(c4d44300,0,c52e460c,67c,c4da7950) at m_freem+0x27
vr_stop(c4d9ce80,1,c52e460c,59e,c4da7950) at vr_stop+0xca
vr_init_locked(c4da7950,8,c52e460c,625,0) at vr_init_locked+0x53
vr_ioctl(c4c01400,80206910,c51a8ca0,c04ceb72,c070aee0) at vr_ioctl+0x17f
ifhwioctl(c51a8ca0,c4b6b320,c51a8ca0,20,0) at ifhwioctl+0x5c5
ifioctl(c4e789bc,80206910,c51a8ca0,c4b6b320,2) at ifioctl+0x78
soo_ioctl(c4d9a6c0,80206910,c51a8ca0,c4a9fd80,c4b6b320) at soo_ioctl+0x2e8
ioctl(c4b6b320,e5049d04,c,41d,3) at ioctl+0x118
syscall(3b,3b,3b,3,1) at syscall+0x13d
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x281579a7, esp = 0xbfbfe58c, ebp 
= 0xbfbfe5d8 ---
KDB: enter: panic
panic: from debugger
Uptime: 17m48s
Dumping 1023 MB (2 chunks)
  chunk 0: 1MB (159 pages) ... ok
  chunk 1: 1023MB (261872 pages) 1007 991 975 959 943 927 911 895 879 863 847 
831 815 799 783 767 751 735 719 703 687 671 655 639 623 607 591 575 559 543 527 
511 495 479 463 447 431 415 399 383 367 351 335 319 303 287 271 255 239 223 207 
191 175 159 143 127 111 95 79 63 47 31 15

#0  doadump () at pcpu.h:165
165 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt full
#0  doadump () at pcpu.h:165
No locals.
#1  0xc04d8606 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:399
_ep = (struct eventhandler_entry *) 0x0
_el = (struct eventhandler_list *) 0xc4d31680
first_buf_printf = 1
#2  0xc04d80d7 in panic (fmt=0xc065d2b6 "from debugger") at 
/usr/src/sys/kern/kern_shutdown.c:555
bootopt = 260
newpanic = 0
buf = "mb_dtor_mbuf: M_EXT set", '\0' 
#3  0xc0444592 in db_panic (addr=-1068544094, have_addr=0, count=-1, 
modif=0xe5049928 "") at /usr/src/sys/ddb/db_command.c:438
No locals.
#4  0xc0444b10 in db_command_loop () at /usr/src/sys/ddb/db_command.c:350
No locals.
#5  0xc0446934 in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_main.c:221
jb = {{_jb = {-452683308, -452683336, -452683256, -994659552, 0, 
-1069258453, -452683124, -1, -1066911948, 672496039, -452683256, -1068543056}}}
prev_jb = (void *) 0x0
bkpt = 0
#6  0xc04f5432 in kdb_trap (type=0, code=0, tf=0xe5049a5c) at 
/usr/src/sys/kern/subr_kdb.c:473
handled = -452683172
#7  0xc0635767 in trap (frame=
  {tf_fs = 8, tf_es = 40, tf_ds = 40, tf_edi = 256, tf_esi = 1, tf_ebp = 
-452683100, tf_isp = -452683128, tf_ebx = 1, tf_edx = 1, tf_ecx = -108832, 
tf_eax = 18, tf_trapno = 3, tf_err = 0, tf_eip = -1068544094, tf_cs = 32, 
tf_eflags = 662, tf_esp = -1067004259, tf_ss = -1067012681})
at /usr/src/sys/i386/i386/trap.c:593
p = (struct proc *) 0xc4d99c48