--On 7. august 2003 10:33 +0930 Greg 'groggy' Lehey [EMAIL PROTECTED]
wrote:
Q: If you have a crash, please supply a backtrace from the dump analysis
as discussed below under Kernel Panics. Please don't delete the crash
dump; it may be needed for further analysis.
A: Sorry, I don't have a crash
On Sunday, 3 August 2003 at 0:31:45 -0400, John Baldwin wrote:
On 03-Aug-2003 Greg 'groggy' Lehey wrote:
On Saturday, 2 August 2003 at 16:47:13 +0200, Eivind Olsen wrote:
[EMAIL PROTECTED]:~/tmp/debug gdb -k kernel.debug
(kgdb) list *(g_dev_strategy+29)
This is almost certainly the
--On 3. august 2003 00:31 -0400 John Baldwin [EMAIL PROTECTED] wrote:
But you knew that. Also, Eivind, you need to use hex, not decimal
offsets from the functions. You might want to redo the g_dev_strategy()
line with 0x29 instead of 29.
I already though about that so I tested the commands both
--On 3. august 2003 09:35 +0930 Greg 'groggy' Lehey [EMAIL PROTECTED]
wrote:
This is the real issue. Until you supply the information I ask for in
the man page or at http://www.vinumvm.org/vinum/how-to-debug.html,
only Terry can help you.
Ok, I'll try to supply that information:
Q: What
--On 3. august 2003 09:37 +0930 Greg 'groggy' Lehey [EMAIL PROTECTED]
wrote:
Read the links I just sent you. You haven't loaded the Vinum symbols.
I'm not sure exactly what to do here. I have absolutely no previous
experience with kernel debugging, using gdb etc. so I'm lost without
specific
On Sunday, 3 August 2003 at 11:17:49 +0200, Eivind Olsen wrote:
--On 3. august 2003 09:37 +0930 Greg 'groggy' Lehey [EMAIL PROTECTED]
wrote:
Read the links I just sent you. You haven't loaded the Vinum symbols.
I'm not sure exactly what to do here. I have absolutely no previous
experience
I've now had yet another crash under FreeBSD 5.1 (RELENG_5_1, cvsupped 5-6
days ago) and it looks almost the same as the crash I posted about
yesterday (or was it the day before?
Here's some output from DDB:
Krasj 2.7.2003:
Fatal trap 12: page fault while in kernel mode
fault virtual address
On Sat, Aug 02, 2003 at 10:11:24AM +0200, Eivind Olsen wrote:
db trace
g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at g_dev_strategy+0x29
launch_requests(c299bf00,0,1,,47) at launch_requests+0x448
vinumstart(c5ada2d0,0,c22ab000,cfb5294c,c02e5bc6) at vinumstart+0x2b2
Eivind Olsen wrote:
Can anyone suggest what I do next to find out about this crash?
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x14
Dereference of NULL pointer; reference is for element at offset
0x14 in some structure; this is the equivalent of 5 32 bit ints
or
On Sat, Aug 02, 2003 at 02:00:52AM -0700, Kris Kennaway wrote:
On Sat, Aug 02, 2003 at 10:11:24AM +0200, Eivind Olsen wrote:
db trace
g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at g_dev_strategy+0x29
launch_requests(c299bf00,0,1,,47) at launch_requests+0x448
[Sending to [EMAIL PROTECTED], and Kris copied in Greg so I'll also do that]
--On 2. august 2003 02:00 -0700 Kris Kennaway [EMAIL PROTECTED] wrote:
db trace
g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at
g_dev_strategy+0x29 launch_requests(c299bf00,0,1,,47) at
--On 2. august 2003 02:11 -0700 Terry Lambert [EMAIL PROTECTED]
wrote:
db trace
g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at
g_dev_strategy+0x29 launch_requests(c299bf00,0,1,,47) at
launch_requests+0x448 vinumstart(c5ada2d0,0,c22ab000,cfb5294c,c02e5bc6)
at vinumstart+0x2b2
--On 2. august 2003 11:16 +0200 Bernd Walter [EMAIL PROTECTED]
wrote:
Looks like a problem in vinum. The other backtrace was the same, right?
Please take a look at an older thread named (IIRC) vinum or geom bug?
Greg asked for special debug output, but it never happened again for me.
A real
On Saturday, 2 August 2003 at 2:11:24 -0700, Terry Lambert wrote:
Eivind Olsen wrote:
Can anyone suggest what I do next to find out about this crash?
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x14
Dereference of NULL pointer; reference is for element at
On Saturday, 2 August 2003 at 17:00:59 +0200, Eivind Olsen wrote:
--On 2. august 2003 11:16 +0200 Bernd Walter [EMAIL PROTECTED]
wrote:
Looks like a problem in vinum. The other backtrace was the same, right?
Please take a look at an older thread named (IIRC) vinum or geom bug?
Greg asked
On Saturday, 2 August 2003 at 16:47:13 +0200, Eivind Olsen wrote:
--On 2. august 2003 02:11 -0700 Terry Lambert [EMAIL PROTECTED]
wrote:
db trace
g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at
g_dev_strategy+0x29 launch_requests(c299bf00,0,1,,47) at
Eivind Olsen wrote:
(kgdb) list *(launch_requests+448)
No symbol launch_requests in current context.
(kgdb) list *(vinumstart+2b2)
No symbol vinumstart in current context.
(kgdb)
If anyone wants to take a look at this themselves I've put the compressed
(gzip) debug-kernel available on
Greg 'groggy' Lehey wrote:
You don't actually need a crash dump to debug a stack traceback.
Great! So you know the answer? Please submit a patch.
Seriously, this is nonsense. Yes, it's a null pointer dereference.
What?
That is precisely what doing what I suggested discovers, Greg.
If
Greg 'groggy' Lehey wrote:
Please take a look at an older thread named (IIRC) vinum or geom bug?
Greg asked for special debug output, but it never happened again for me.
A real murphy bug - it happend on three machines once a day and after
Gregs response nothing happened over weeks.
On Saturday, 2 August 2003 at 17:54:03 -0700, Terry Lambert wrote:
Eivind Olsen wrote:
(kgdb) list *(launch_requests+448)
No symbol launch_requests in current context.
(kgdb) list *(vinumstart+2b2)
No symbol vinumstart in current context.
(kgdb)
If anyone wants to take a look at this
Terry Lambert wrote:
There's no reason to be paranoid about your baby with me; unlike
some people, personally I like Vinum, so relax and realize that
I'm not trying to blame your code by trying to help him squeeze
more information out of the data he *is* able to gather.
To follow this up:
On Saturday, 2 August 2003 at 17:56:49 -0700, Terry Lambert wrote:
Greg 'groggy' Lehey wrote:
You don't actually need a crash dump to debug a stack traceback.
Great! So you know the answer? Please submit a patch.
Seriously, this is nonsense. Yes, it's a null pointer dereference.
What?
On Saturday, 2 August 2003 at 18:06:36 -0700, Terry Lambert wrote:
Greg 'groggy' Lehey wrote:
Please take a look at an older thread named (IIRC) vinum or geom bug?
Greg asked for special debug output, but it never happened again for me.
A real murphy bug - it happend on three machines once a
Greg 'groggy' Lehey wrote:
If this is repeatable for you, it's recommended that you compile
Vinum statically into your kernel, so that you can look at the
other symbols in the traceback and obtain source lines for them,
as well.
No. It is explicitly discouraged.
It saves the dicking
Greg 'groggy' Lehey wrote:
The information I gave him gets him to lines of source code, instead
of just function names with strange hexadecimal numbers that resolve
to instruction offsets that may be specific to his compile flags,
date of checkout of the sources from CVS, etc..
The
On Saturday, 2 August 2003 at 18:36:24 -0700, Terry Lambert wrote:
Greg 'groggy' Lehey wrote:
The information I gave him gets him to lines of source code, instead
of just function names with strange hexadecimal numbers that resolve
to instruction offsets that may be specific to his compile
I fear we may have gotten a bit off-topic.
E
From: Greg 'groggy' Lehey [EMAIL PROTECTED]
To: Terry Lambert [EMAIL PROTECTED]
CC: [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: Yet another crash in FreeBSD 5.1
Date: Sun, 3 Aug 2003 11:21:41 +0930
On Saturday, 2 August 2003 at 18:36:24 -0700
On 03-Aug-2003 Greg 'groggy' Lehey wrote:
On Saturday, 2 August 2003 at 16:47:13 +0200, Eivind Olsen wrote:
--On 2. august 2003 02:11 -0700 Terry Lambert [EMAIL PROTECTED]
wrote:
db trace
g_dev_strategy(c2156024,c2153800,0,cfb528d0,c2099eca) at
g_dev_strategy+0x29
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