Re: Oops in 2.6.10-rc1

Re: Oops in 2.6.10-rc1

[Christian Kujau]

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Christian Kujau schrieb:
> On Sun, 7 Nov 2004 08:57:40 -0800 (PST), Linus Torvalds wrote
> 
>>	bk undo -a1.2000.7.2
>>
>>which should give you a tree without any of "my" stuff, ie it 
>>was what Jaroslav was working on before he merged it into the 
>>standard tree.

i did so from a current tree (bk pull, undo, -r get) and it's working
fine (url wraps):

http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/dmesg-no-oops-2.6.9_a1.2000.7.2.txt

so i can see with "bk changes" that the ChangeSet is still there. this is
what i expected, because -a says:

- -a<rev>   Remove all changesets which occurred after <rev>.

what i did not expect is that this ChangeSet is now *not* the culprit,
because there is no oops. am i right? [1]

>>Yes, that makes me suspicious, and is one reason why I wonder 
>>if it's just your tree not being built right.
> 
> i'll build a -bk snapshot from a tar.bz2 later on and see what it gives.

i've build from linux-2.6.10-rc1.tar.bz2 with patch-2.6.10-rc1-bk17.bz2
from kernel.org with the same .config and "modprobe snd-ens1371" oopses as
expected :(

> Hmm.. That may well have worked fine, but it sounds in that post like
> you tried to undo the ALSA stuff, and what I suggested was really to
> do the reverse: take _only_ the ALSA changes, and then if it still

yes, i wanted to undo the alsa changes because i suspected the alsa
framework (sorry guys) and wanted to see if it still oopses when the
latest alsa patch was not appied.

i did another thing: i enabled the (deprecated) OSS driver (es1371.ko)
tried to load this thing:

http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/dmesg-debug_oops-OSS.txt

it oopses.
- - you said it's not a b0rken pci thingy
- - i have to assume now that it's not an ALSA issue (since oss oopses too)
- - it is OSS? the driver? i've CC'ed linux-sound...


> fails, at least you have now pinpointed it a bit more (admittedly to
> the _likely_ source, but that's as it should be: you narrow down the
> "known bad" source base until you've narrowed it down to the smallest
> change you can find that causes the problem).

yes, like Documentation/BUG-HUNTING says. but i seem to have difficulties
in using my tools (bk). sorry for that.

> Sounds like you're doing everything right, but hey, it can't hurt to
> double-check.

yes, i really hope that it's not just a user error (on my side). building
kernels since 2.0...but you never know...


thanks again for help,
Christian
(whose only wish these days is to get over this strange thing and not
wasting peoples precious time with a "sound driver". hey, at least  the
box is booting...)

- --
BOFH excuse #224:

Jan  9 16:41:27 huber su: 'su root' succeeded for .... on /dev/pts/1
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Re: Oops in 2.6.10-rc1

[Linus Torvalds]

On Mon, 8 Nov 2004, Christian Kujau wrote:
> 
> what i did not expect is that this ChangeSet is now *not* the culprit,
> because there is no oops. am i right? [1]

Yes.

So now I'd like to know _where_ the culprit is, since it turned out to be 
not the ALSA code. 

> i did another thing: i enabled the (deprecated) OSS driver (es1371.ko)
> tried to load this thing:
> 
> http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/dmesg-debug_oops-OSS.txt
> 
> it oopses.
>  - you said it's not a b0rken pci thingy
>  - i have to assume now that it's not an ALSA issue (since oss oopses too)
>  - it is OSS? the driver? i've CC'ed linux-sound...

Sounds like something else changed, and likely the ALSA _and_ the OSS 
driver both broke. Which is not all that unlikely, since I suspect they 
share a lot of history.

> yes, like Documentation/BUG-HUNTING says. but i seem to have difficulties
> in using my tools (bk). sorry for that.

Not your fault. Think of this as a learning experience ;)

Anyway, now that the _other_ driver also oopses, and with a very similar 
oops too, so it looks like they both depended on some undocumented (or 
changed) detail in the PCI layer. Next step would be to see if the thing 
that breaks is this merge:

	ChangeSet@1.2463, 2004-11-04 17:07:16-08:00, torvalds@ppc970.osdl.org
	  Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6
	  into ppc970.osdl.org:/home/torvalds/v2.6/linux

which merges Greg's PCI/driver model changes.

It's all the same steps you took with the ALSA merge, you're a
professional by now ;)

Greg, have you followed this thread?

> (whose only wish these days is to get over this strange thing and not
> wasting peoples precious time with a "sound driver". hey, at least  the
> box is booting...)

Hey, sound is important. And especially if you somehow found something 
non-sound that just broke sound by mistake, all the more important to fix 
it.

		Linus

Re: Oops in 2.6.10-rc1

[Christian Kujau]

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Linus Torvalds schrieb:
> 
> Not your fault. Think of this as a learning experience ;)

it definitely is, yes.

> Anyway, now that the _other_ driver also oopses, and with a very similar 
> oops too, so it looks like they both depended on some undocumented (or 
> changed) detail in the PCI layer. Next step would be to see if the thing 
> that breaks is this merge:

may i ask how you come to this conclusion? by technical knowledge or could
this be deduced by some bk magic too?

> 
> 	ChangeSet@1.2463, 2004-11-04 17:07:16-08:00, torvalds@ppc970.osdl.org
> 	  Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6
> 	  into ppc970.osdl.org:/home/torvalds/v2.6/linux
> 
> which merges Greg's PCI/driver model changes.
> 
> It's all the same steps you took with the ALSA merge, you're a
> professional by now ;)

i did "bk undo -a1.2463" from a current -BK tree and it oopses:

http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/dmesg-debug_oops-a1.2463.txt

(i've booted with different boot options this time, because i noticed that
i always booted with "acpi=force". changing this did not help either.)

next i wanted to do "bk undo -r1.2463" now to see if it does *not* break
without this ChangeSet (because i already know it *breaks* with this
ChangeSet) but that would leave some parentless child deltas. i read in
the BK docs that "bk cset -x<version>" would help here. but "bk cset
- -x1.2463" aborts:

- ---------------------
evil@atlant:~/kernel/linux-2.6-BK$ bk changes | head -n3
ChangeSet@1.2463, 2004-11-04 17:07:16-08:00, torvalds@ppc970.osdl.org
  Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6
  into ppc970.osdl.org:/home/torvalds/v2.6/linux

evil@atlant:~/kernel/linux-2.6-BK$ bk cset -x1.2463
cset: Merge cset found in revision list: (1.2463).  Aborting. (cset1)
- ---------------------

i've put everthing on http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/
the .configs, the oopses are there. i've double checked a kernel built
from "bk -a a1.2000.7.2" yesterday but the result was the same (no oops)

thank you,
Christian.
- --
BOFH excuse #121:

halon system went off and killed the operators.
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Re: Oops in 2.6.10-rc1

[Linus Torvalds]

On Mon, 8 Nov 2004, Christian Kujau wrote:
> 
> > Anyway, now that the _other_ driver also oopses, and with a very similar 
> > oops too, so it looks like they both depended on some undocumented (or 
> > changed) detail in the PCI layer. Next step would be to see if the thing 
> > that breaks is this merge:
> 
> may i ask how you come to this conclusion? by technical knowledge or could
> this be deduced by some bk magic too?

No, just gut feel. If the pre-merge ALSA works, and the post-merge one 
doesn't, and the oops in both cases happen somewhere close to where it 
does "pci_enable_device()", there's not a lot left. There are interrupts, 
and there is the PCI layer...

> > 	ChangeSet@1.2463, 2004-11-04 17:07:16-08:00, torvalds@ppc970.osdl.org
> > 	  Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6
> > 	  into ppc970.osdl.org:/home/torvalds/v2.6/linux
> > 
> > which merges Greg's PCI/driver model changes.
> > 
> > It's all the same steps you took with the ALSA merge, you're a
> > professional by now ;)
> 
> i did "bk undo -a1.2463" from a current -BK tree and it oopses:

Note that "bk undo -axxx" will _leave_ xxx in place, and undo everything 
after. 

So what you did still has the merge in the tree, and that it still oopses 
is thus to be expected. BUT, we're getting closer.

> next i wanted to do "bk undo -r1.2463" now to see if it does *not* break
> without this ChangeSet (because i already know it *breaks* with this
> ChangeSet) but that would leave some parentless child deltas. i read in
> the BK docs that "bk cset -x<version>" would help here. but "bk cset
> - -x1.2463" aborts:

"cset -x" only works on patches, not on complex operations. You still want 
"bk undo", but you want to use "bk revtool" to see what the merge point 
was, and tell _which_ of the merged top-of-trees you want to get to. 

In other words, you can't just undo a merge, you need to tell which _way_
to undo it. See? It does actually make sense, and "bk revtool" will show 
you the relationships of merges (at least if the time range is big enough 
to show enough info).

Anyway, if you have the top-of-tree-is-1.2463, then go to "bk revtool", 
and select that node in the graph by clicking on it. Notice how those 
edges turned white, and you can now easily see which children were 
pre-merge.

In this case, the top-of-tree tree _without_ the PCI merge is 1.2642:

	ChangeSet@1.2462, 2004-11-04 17:06:13-08:00, torvalds@ppc970.osdl.org
	  Merge bk://kernel.bkbits.net/gregkh/linux/usb-2.6
	  into ppc970.osdl.org:/home/torvalds/v2.6/linux

(you won't see it in "bk changes", since it's a trivial merge: use "bk 
changes -a" to see it). So just before I merged Greg's PCI changes, I 
merged his USB changes.

Now, that's fine - the USB merge is likely to be ok, so try doing

	bk undo -a1.2462

and you will now have a tree that is exactly the same as before, except it 
does _not_ have the PCI merge from Greg.

And if this one does not oops, you can now officially blame Greg.

Now, if you want to get _really_ fancy, you can now look at each changeset 
that differed, with something like

	bk set -n -d -r1.2462 -r1.2463 | bk -R prs -h -d'<:P:@:HOST:>\n$each(:C:){\t(:C:)\n}\n' -

which is black magic that does a set operation and shows all the changes 
in between the sets of "bk at 1.2462" and "bk at 1.2463".

(This is _not_ the same as "bk changes -r1.2462..1.2463", because that one 
just shows the single merge change that is on the direct _path_ from one 
changeset to another. The black magic thing shows the set difference of 
changesets that comes from the full graph at two points).

Then you can look at each change individually and see if they matter.

And once you can do the set operations, you're officially a BK poweruser.  
Me, I just have a script, I'm a BK dabbler.

Looking at the list (appended), I don't see anything obvious, but hey, if 
it was obvious it wouldn't have been merged in the first place. 

Thanks for your willingness to pursue this thing,

		Linus

-----
<maneesh@in.ibm.com>
	[PATCH] sysfs: fix sysfs backing store error path confusion
	
	o sysfs_new_dirent to retrun 0 if kmalloc fails. Thanks to Milton Miller
	  for spotting this.
	
	Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<bunk@stusta.de>
	[PATCH] small sysfs cleanups
	
	The patch below does the following cleanups for the sysfs code:
	- remove the unused global function sysfs_mknod
	- make some structs and functions static
	
	Please check whether this patch is correct, or whether some of the
	things I made static should be used globally in the forseeable future.
	
	
	Signed-off-by: Adrian Bunk <bunk@stusta.de>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<kay.sievers@vrfy.org>
	[PATCH] add the physical device and the bus to the hotplug environment
	
	Add the sysfs path of the physical device to the hotplug event of class
	and block devices. This should solve the userspace issue not to know if
	the device is a virtual one and the "device" symlink will never be created,
	but we sit there and wait for it to show up not knowing when we should
	give up.
	
	Also the bus name is added to the hotplug event, so we don't need to
	reverse lookup in the /sys/bus/* directory which bus our physical
	device belongs to. This is e.g. the value matched against the BUS= key,
	that may be used in an udev rule.
	
	This is a PCI network card:
	  ACTION­d
	  SUBSYSTEM=net
	  DEVPATH=/class/net/eth0
	  PHYSDEVPATH=/devices/pci0000:00/0000:00:1e.0/0000:02:01.0
	  PHYSDEVBUS=pci
	  INTERFACE=eth0
	  SEQNUM‚7
	  PATH=/sbin:/bin:/usr/sbin:/usr/bin
	  HOME=/
	
	This is a IDE CDROM:
	  ACTION­d
	  SUBSYSTEM=block
	  DEVPATH=/block/hdc
	  PHYSDEVPATH=/devices/pci0000:00/0000:00:1f.1/ide1/1.0
	  PHYSDEVBUS=ide
	  SEQNUM\x1017
	  PATH=/sbin:/bin:/usr/sbin:/usr/bin
	  HOME=/
	
	This is an USB-stick partition:
	  ACTION­d
	  SUBSYSTEM=block
	  DEVPATH=/block/sda/sda1
	  PHYSDEVPATH=/devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/host1/target1:0:0/1:0:0:0
	  PHYSDEVBUS=scsi
	  SEQNUM\x1032
	  PATH=/sbin:/bin:/usr/sbin:/usr/bin
	  HOME=/
	
	
	Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<tj@home-tj.org>
	[PATCH] driver-model: comment fix in bus.c
	
	 df_01_driver_attach_comment_fix.patch
	
	bus_match() was renamed to driver_probe_device() but the comment for
	device_attach() wasn't updated.  This patch updates it.
	
	
	Signed-off-by: Tejun Heo <tj@home-tj.org>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<tj@home-tj.org>
	[PATCH] driver-model: bus_recan_devices() locking fix
	
	 df_02_bus_rescan_devcies_fix.patch
	
	 bus_rescan_devices() eventually calls device_attach() and thus
	requires write locking the corresponding bus.  The original code just
	called bus_for_each_dev() which only read locks the bus.  This patch
	separates __bus_for_each_dev() and __bus_for_each_drv(), which don't
	do locking themselves, out from the original functions and call them
	with read lock in the original functions and with write lock in
	bus_rescan_devices().
	
	
	Signed-off-by: Tejun Heo <tj@home-tj.org>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<tj@home-tj.org>
	[PATCH] driver-model: sysfs_release() dangling pointer reference fix
	
	 df_03_sysfs_release_fix.patch
	
	Some attributes are allocated dynamically (e.g. module and device
	parameters) and are usually deallocated when the assoicated kobject is
	released.  So, it's not safe to access attr after putting the kobject.
	
	
	Signed-off-by: Tejun Heo <tj@home-tj.org>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<tj@home-tj.org>
	[PATCH] driver-model: kobject_add() error path reference counting fix
	
	 df_04_kobject_add_ref_fix.patch
	
	In kobject_add(), @kobj wasn't put'd properly on error path.  This
	patch fixes it.
	
	
	Signed-off-by: Tejun Heo <tj@home-tj.org>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<tj@home-tj.org>
	[PATCH] driver-model: device_add() error path reference counting fix
	
	 df_05_device_add_ref_fix.patch
	
	 In device_add(), @dev wan't put'd properly when it has zero length
	bus_id (error path).  Fixed.
	
	
	Signed-off-by: Tejun Heo <tj@home-tj.org>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<greg@kroah.com>
	kevent: fix build error if CONFIG_KOBJECT_UEVENT is not selected.
	
	Thanks to Serge Hallyn <serue@us.ibm.com> for pointing this out.
	
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<rml@novell.com>
	[PATCH] kobject_uevent: fix init ordering
	
	Looks like kobject_uevent_init is executed before netlink_proto_init and
	consequently always fails.  Not cool.
	
	Attached patch switches the initialization over from core_initcall (init
	level 1) to postcore_initcall (init level 2).  Netlink's initialization
	is done in core_initcall, so this should fix the problem.  We should be
	fine waiting until postcore_initcall.
	
	Also a couple white space changes mixed in, because I am anal.
	
	Signed-Off-By: Robert Love <rml@novell.com>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<rml@novell.com>
	[PATCH] kobject_uevent: add MAINTAINER entry
	
	Attached patch adds a MAINTAINER entry for the kernel event layer.
	
	
	Signed-Off-By: Robert Love <rml@novell.com>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<greg@kroah.com>
	Merge kroah.com:/home/greg/linux/BK/bleed-2.6
	into kroah.com:/home/greg/linux/BK/driver-2.6

<maneesh@in.ibm.com>
	[PATCH] fix kernel BUG at fs/sysfs/dir.c:20!
	
	On Thu, Nov 04, 2004 at 12:52:38PM -0800, Greg KH wrote:
	> Hi,
	>
	> I get the following BUG in the sysfs code when I do:
	> 	- plug in a usb-serial device.
	> 	- open the port with 'cat /dev/ttyUSB0'
	> 	- unplug the device.
	> 	- stop the 'cat' process with control-C
	>
	> This used to work just fine before your big sysfs changes.
	
	There is a similar problem reported by s390 people where we see parent
	kobject (directory) going away before child kobject (sub-directory). It
	seems kobject code is able to handle this, but not the sysfs. What could
	be happening that in sysfs_remove_dir() of parent directory, we try to
	remove its contents. It works well with the regular files as it is the
	final removal for sysfs_dirent corresponding to the files. But in case
	of sub-directory we are doing an extra sysfs_put().  Once while removing
	parent and the other one being the one from when sysfs_remove_dir() is
	called for the child.
	
	The following patch worked for the s390 people, I hope same will work in
	this case also.
	
	
	o Do not remove sysfs_dirents corresponding to the sub-directory in
	  sysfs_remove_dir(). They will be removed in the sysfs_remove_dir() call
	  for the specific sub-directory.
	
	Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
	Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

<torvalds@ppc970.osdl.org>
	Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6
	into ppc970.osdl.org:/home/torvalds/v2.6/linux

Re: Oops in 2.6.10-rc1

[Christian Kujau]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Linus Torvalds schrieb:
>
> No, just gut feel. If the pre-merge ALSA works, and the post-merge one 
> doesn't, and the oops in both cases happen somewhere close to where it 
> does "pci_enable_device()", there's not a lot left. There are interrupts, 
> and there is the PCI layer...

yes, makes sense.

>>
>>i did "bk undo -a1.2463" from a current -BK tree and it oopses:
> 
> Note that "bk undo -axxx" will _leave_ xxx in place, and undo everything 
> after. 
> 
> So what you did still has the merge in the tree, and that it still oopses 
> is thus to be expected. BUT, we're getting closer.

yes, i think i understood that. that's why i wanted to revert 1.2463 too.

[...]

> 
> Now, that's fine - the USB merge is likely to be ok, so try doing
> 
> 	bk undo -a1.2462

for now i appreciate your work here but i have to postpone the the "bk
revtool" stuff because i have no X _and_ bk here. (but i'm a good student
and will do my homework)

> and you will now have a tree that is exactly the same as before, except it 
> does _not_ have the PCI merge from Greg.
> 
> And if this one does not oops, you can now officially blame Greg.

i can't wait... ;)

>> Now, if you want to get _really_ fancy, you can now look at each changeset 
> that differed, with something like
> 
> 	bk set -n -d -r1.2462 -r1.2463 | bk -R prs -h -d'<:P:@:HOST:>\n$each(:C:){\t(:C:)\n}\n' -
> 
> which is black magic that does a set operation and shows all the changes 
> in between the sets of "bk at 1.2462" and "bk at 1.2463".
> 
> (This is _not_ the same as "bk changes -r1.2462..1.2463", because that one 
> just shows the single merge change that is on the direct _path_ from one 
> changeset to another. The black magic thing shows the set difference of 
> changesets that comes from the full graph at two points).
> 
> Then you can look at each change individually and see if they matter.

will do, after the build

> 
> And once you can do the set operations, you're officially a BK poweruser.  
> Me, I just have a script, I'm a BK dabbler.
> 
> Looking at the list (appended), I don't see anything obvious, but hey, if 
> it was obvious it wouldn't have been merged in the first place. 
> 
> Thanks for your willingness to pursue this thing,

hey, thanks to you and to the folks in the Cc: field to chase a bug which
only _i_ encounter until now.

/me is building now....
thanks,
Christian.
- --
BOFH excuse #111:

The salesman drove over the CPU board.
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Re: Oops in 2.6.10-rc1

[Pekka Enberg]

Hi Christian,

On Mon, 08 Nov 2004 14:01:39 +0100, Christian Kujau <evil@g-house.de> wrote:
> i've put everthing on http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/
> the .configs, the oopses are there. i've double checked a kernel built
> from "bk -a a1.2000.7.2" yesterday but the result was the same (no oops)

Just to update, I cannot reproduce the oops with your config (nor
mine) on my machine running 2.6.10-rc1-bk14.

                       Pekka

0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365
[KT133/KM133] (rev 03)
        Subsystem: ASUSTeK Computer Inc. A7V133/A7V133-C Mainboard
        Flags: bus master, medium devsel, latency 8
        Memory at e7000000 (32-bit, prefetchable)
        Capabilities: [a0] AGP version 2.0
        Capabilities: [c0] Power Management version 2

0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365
[KT133/KM133 AGP] (prog-if 00 [Normal decode])
        Flags: bus master, 66Mhz, medium devsel, latency 0
        Bus: primary\0, secondary\x01, subordinate\x01, sec-latency=0
        I/O behind bridge: 0000d000-0000dfff
        Memory behind bridge: d7000000-d7efffff
        Prefetchable memory behind bridge: d7f00000-e6ffffff
        Expansion ROM at 0000d000 [disabled] [size=4K]
        Capabilities: [80] Power Management version 2

0000:00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super
South] (rev 40)
        Subsystem: ASUSTeK Computer Inc. A7V133/A7V133-C Mainboard
        Flags: bus master, stepping, medium devsel, latency 0
        Capabilities: [c0] Power Management version 2

0000:00:04.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
(prog-if
 8a [Master SecP PriP])
        Flags: bus master, medium devsel, latency 32
        I/O ports at b800 [size\x16]
        Capabilities: [c0] Power Management version 2

0000:00:04.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller (rev 16) (prog-if 00 [UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Flags: bus master, medium devsel, latency 32, IRQ 10
        I/O ports at b400 [size2]
        Capabilities: [80] Power Management version 2

0000:00:04.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller (rev 16) (prog-if 00 [UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Flags: bus master, medium devsel, latency 32, IRQ 10
        I/O ports at b000 [size2]
        Capabilities: [80] Power Management version 2

0000:00:04.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super
ACPI] (rev 40)
        Subsystem: ASUSTeK Computer Inc. A7V133/A7V133-C Mainboard
        Flags: medium devsel, IRQ 9
        Capabilities: [68] Power Management version 2

0000:00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RT8139
        Flags: bus master, medium devsel, latency 32, IRQ 10
        I/O ports at 9400
        Memory at d6800000 (32-bit, non-prefetchable) [size%6]
        Capabilities: [50] Power Management version 2

0000:00:0a.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 04)
        Subsystem: Ensoniq Sound Blaster 16PCI 4.1ch
        Flags: bus master, slow devsel, latency 32, IRQ 11
        I/O ports at 9000
        Capabilities: [dc] Power Management version 2

0000:00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RT8139
        Flags: bus master, medium devsel, latency 32, IRQ 10
        I/O ports at 8800
        Memory at d6000000 (32-bit, non-prefetchable) [size%6]
        Capabilities: [50] Power Management version 2

0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon
RV100 QY [Radeon 7000/VE] (prog-if 00 [VGA])
        Subsystem: Hightech Information System Ltd.: Unknown device 0f02
        Flags: bus master, stepping, 66Mhz, medium devsel, latency 64
        Memory at d8000000 (32-bit, prefetchable) [size×fe0000]
        I/O ports at d800 [size%6]
        Memory at d7000000 (32-bit, non-prefetchable) [sizedK]
        Expansion ROM at 00020000 [disabled]
        Capabilities: [58] AGP version 2.0
        Capabilities: [50] Power Management version 2



Linux version 2.6.10-rc1-bk14 (root@cherry) (gcc version 3.4.2 (Gentoo
Linux 3.4.2-r2, ssp-3.4.1-1, pie-8.7.6.5)) #8 Mon Nov 8 20:18:45 EET
2004
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000003ffec000 (usable)
 BIOS-e820: 000000003ffec000 - 000000003ffef000 (ACPI data)
 BIOS-e820: 000000003ffef000 - 000000003ffff000 (reserved)
 BIOS-e820: 000000003ffff000 - 0000000040000000 (ACPI NVS)
 BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
127MB HIGHMEM available.
896MB LOWMEM available.
On node 0 totalpages: 262124
  DMA zone: 4096 pages, LIFO batch:1
  Normal zone: 225280 pages, LIFO batch:16
  HighMem zone: 32748 pages, LIFO batch:7
DMI 2.3 present.
ACPI: RSDP (v000 ASUS                                  ) @ 0x000f6a80
ACPI: RSDT (v001 ASUS   A7V133-C 0x30303031 MSFT 0x31313031) @ 0x3ffec000
ACPI: FADT (v001 ASUS   A7V133-C 0x30303031 MSFT 0x31313031) @ 0x3ffec080
ACPI: BOOT (v001 ASUS   A7V133-C 0x30303031 MSFT 0x31313031) @ 0x3ffec040
ACPI: DSDT (v001   ASUS A7V133-C 0x00001000 MSFT 0x0100000b) @ 0x00000000
ACPI: PM-Timer IO Port: 0xe408
Built 1 zonelists
Kernel command line: root=/dev/ram0 init=/linuxrc real_root=/dev/hda3 acpi=force
No local APIC present or hardware disabled
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 65536 bytes)
Detected 1009.328 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 1034128k/1048496k available (2582k kernel code, 13664k
reserved, 770k data, 148k init, 130992k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 1998.84 BogoMIPS (lpj™9424)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: 0383f9ff c1c7f9ff 00000000 00000000
CPU: After vendor identify, caps:  0383f9ff c1c7f9ff 00000000 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 64K (64 bytes/line)
CPU: After all inits, caps:        0383f9ff c1c7f9ff 00000000 00000020
CPU: AMD Duron(tm) Processor stepping 00
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ACPI: IRQ9 SCI: Edge set to Level Trigger.
checking if image is initramfs...it isn't (no cpio magic); looks like an initrd
Freeing initrd memory: 885k freed
kobject_uevent: unable to create netlink socket!
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xf1180, last bus=1
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040816
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
PCI: Using ACPI for IRQ routing
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:04.2[D] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:04.3[D] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:09.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 10 (level, low) -> IRQ 10
Simple Boot Flag at 0x3a set to 0x1
highmem bounce pool size: 64 pages
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
SGI XFS with ACLs, realtime, no debug enabled
SGI XFS Quota Management subsystem
Applying VIA southbridge workaround.
PCI: Disabling Via external APIC routing
Real Time Clock Driver v1.12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller
(davem@redhat.com)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:04.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:04.1
    ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdc:DMA, hdd:pio
Probing IDE interface ide0...
hda: Maxtor 4D060H3, ATA DISK drive
elevator: using anticipatory as default io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: Hewlett-Packard CD-Writer Plus 8200a, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
Probing IDE interface ide2...
ide2: Wait for ready failed before probe !
Probing IDE interface ide3...
ide3: Wait for ready failed before probe !
Probing IDE interface ide4...
ide4: Wait for ready failed before probe !
Probing IDE interface ide5...
ide5: Wait for ready failed before probe !
hda: max request size: 128KiB
hda: 120069936 sectors (61475 MB) w/2048KiB Cache, CHSe535/16/63, UDMA(100)
hda: cache flushes not supported
 /dev/ide/host0/bus0/target0/lun0: p1 p2 p3
hdc: ATAPI 32X CD-ROM CD-R/RW drive, 4096kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
ide-floppy driver 0.99.newide
mice: PS/2 mouse device common for all mice
input: AT Translated Set 2 keyboard on isa0060/serio0
input: ImPS/2 Logitech Wheel Mouse on isa0060/serio1
NET: Registered protocol family 2
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
ACPI: (supports S0 S1 S4 S5)
ACPI wakeup devices:
PWRB PCI0 UAR1 UAR2 USB0 USB1
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 148k freed
usbcore: registered new driver usbfs
usbcore: registered new driver hub
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
SCSI subsystem initialized
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ReiserFS: hda3: warning: sh-2021: reiserfs_fill_super: can not find
reiserfs on hda3
kjournald starting.  Commit interval 5 seconds
EXT3 FS on hda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding 2040244k swap on /dev/hda2.  Priority:-1 extents:1
EXT3 FS on hda3, internal journal
8139too Fast Ethernet driver 0.9.27
PCI: Enabling device 0000:00:09.0 (0004 -> 0007)
ACPI: PCI interrupt 0000:00:09.0[A] -> GSI 10 (level, low) -> IRQ 10
eth0: RealTek RTL8139 at 0xf8814000, 00:06:4f:01:66:57, IRQ 10
eth0:  Identified 8139 chip type 'RTL-8139C'
PCI: Enabling device 0000:00:0d.0 (0004 -> 0007)
ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 10 (level, low) -> IRQ 10
eth1: RealTek RTL8139 at 0xf8816000, 00:06:4f:01:66:58, IRQ 10
eth1:  Identified 8139 chip type 'RTL-8139C'
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[drm] Initialized radeon 1.11.0 20020828 on minor 0: ATI Technologies
Inc Radeon RV100 QY [Radeon 7000/VE]
[drm:radeon_cp_init] *ERROR* radeon_cp_init called without lock held
[drm:radeon_unlock] *ERROR* Process 6283 using kernel context 0
inserting floppy driver for 2.6.10-rc1-bk14
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
PCI: Enabling device 0000:00:0a.0 (0004 -> 0005)
ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 11 (level, low) -> IRQ 11

Re: Oops in 2.6.10-rc1

[Greg KH]

On Mon, Nov 08, 2004 at 08:44:37PM +0200, Pekka Enberg wrote:
> Hi Christian,
> 
> On Mon, 08 Nov 2004 14:01:39 +0100, Christian Kujau <evil@g-house.de> wrote:
> > i've put everthing on http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/
> > the .configs, the oopses are there. i've double checked a kernel built
> > from "bk -a a1.2000.7.2" yesterday but the result was the same (no oops)
> 
> Just to update, I cannot reproduce the oops with your config (nor
> mine) on my machine running 2.6.10-rc1-bk14.

But 2.6.10-rc1-bk15 does have the problem?

Trying to figure out where the issue is...

greg k-h

Re: Oops in 2.6.10-rc1

[Pekka Enberg]

Hi,

On Mon, 8 Nov 2004 11:00:40 -0800, Greg KH <greg@kroah.com> wrote:
> But 2.6.10-rc1-bk15 does have the problem?
> 
> Trying to figure out where the issue is...

No, -bk14 is just the kernel I am running right now (I haven't tried
-bk15) and I haven't had the problem. I cannot reproduce the oops _at
all_ which is why I suspect it's his hardware. I included my lspci and
dmesg output because we have similar (but not exactly the same)
setups.

FWIW, I've asked Christian for an obdump of the kernel to see if I can
track down where it oopses at because I cannot find anything in the
code. I suspected pcibios_enable_irq  (which is a function pointer)
might be wrong but looking at his logs, I don't think we get that far.

                          Pekka

Re: Oops in 2.6.10-rc1

[Pekka Enberg]

On Mon, 8 Nov 2004 11:00:40 -0800, Greg KH <greg@kroah.com> wrote:
> > But 2.6.10-rc1-bk15 does have the problem?
> >
> > Trying to figure out where the issue is...

On Mon, 8 Nov 2004 21:18:09 +0200, Pekka Enberg <penberg@gmail.com> wrote: 
> No, -bk14 is just the kernel I am running right now (I haven't tried
> -bk15) and I haven't had the problem.

Sorry for not being clear, any kernel after 2.6.10-rc1 oopses
according to Christian which is why I haven't bothered to test
anything else except -bk14.

                           Pekka

Re: Oops in 2.6.10-rc1

[Christian Kujau]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Pekka Enberg schrieb:
> Hi,
> 
> On Mon, 8 Nov 2004 11:00:40 -0800, Greg KH <greg@kroah.com> wrote:
> 
>>But 2.6.10-rc1-bk15 does have the problem?
>>
>>Trying to figure out where the issue is...

i could use the -bk snapshots too, but since i am using bk myself (i try),
i think we can narrow it down a bit more.

> 
> No, -bk14 is just the kernel I am running right now (I haven't tried
> -bk15) and I haven't had the problem. I cannot reproduce the oops _at
> all_ which is why I suspect it's his hardware. I included my lspci and
> dmesg output because we have similar (but not exactly the same)
> setups.

i've put an lspci output here:
http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/lspci-v.txt
http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/lspci-vv.txt

i do not suspect hw problems *yet*, because kernel up to 2.6.9 (tracking
bk) do not show this behaviour.

> FWIW, I've asked Christian for an obdump of the kernel to see if I can

will show up in a couple of minutes here:
http://www.nerdbynature.de/bits/prinz/2.6.10-rc1/objdump-d_a1.2463.txt.bz2

this is from the vmlinux from a "bk undo -a1.2463" kernel, IOW it still
contains:

ChangeSet@1.2463, 2004-11-04 17:07:16-08:00, torvalds@ppc970.osdl.org
  Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6
  into ppc970.osdl.org:/home/torvalds/v2.6/linux


thank you for the hints,
Christian.

PS: should we i un'CC linux-sound and alsa-devel, now we are sure it's a
pci thing?
- --
BOFH excuse #228:

That function is not currently supported, but Bill Gates assures us it
will be featured in the next upgrade.
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