[1/2] 2.6.23-rc3: known regressions with patches

[1/2] 2.6.23-rc3: known regressions with patches

[Michal Piotrowski]

Hi all,

Here is a list of some known regressions in 2.6.23-rc3
with patches available.

Feel free to add new regressions/remove fixed etc.
http://kernelnewbies.org/known_regressions

List of Aces

Name                    Regressions fixed since 21-Jun-2007
Adrian Bunk                            9
Andi Kleen                             5
Linus Torvalds                         5
Andrew Morton                          4
Al Viro                                3
Cornelia Huck                          3
Jens Axboe                             3
Tejun Heo                              3



Unclassified

Subject         : reset during bootup - 2.6.23-rc2 (git d23cf676)
References      : http://lkml.org/lkml/2007/8/11/177
Last known good : ?
Submitter       : Dan Merillat <dan.merillat@gmail.com>
Caused-By       : Rusty Russell <rusty@rustcorp.com.au>
                  ab144f5ec64c42218a555ec1dbde6b60cf2982d6
Handled-By      : Paolo Ornati <ornati@fastwebnet.it>
                  Andi Kleen <andi@firstfloor.org>
Patch           : http://lkml.org/lkml/2007/8/12/76
Status          : patch was suggested

Subject         : Kconfig prompts without help text
References      : http://lkml.org/lkml/2007/7/16/326
Last known good : ?
Submitter       : Stefan Richter <stefanr@s5r6.in-berlin.de>
Caused-By       : ?
Handled-By      : Jan Engelhardt <jengelh@linux01.gwdg.de>
Patch           : http://lkml.org/lkml/2007/7/18/236
Status          : patch available

Subject         : Oops while modprobing phy fixed module
References      : http://lkml.org/lkml/2007/7/14/63
Last known good : ?
Submitter       : Gabriel C <nix.or.die@googlemail.com>
Caused-By       : ?
Handled-By      : Satyam Sharma <satyam.sharma@gmail.com>
                  Vitaly Bordug <vitb@kernel.crashing.org>
Patch1          : http://lkml.org/lkml/2007/7/18/506
Status          : patch available



FS

Subject         : NFSv4 poops itself
References      : http://lkml.org/lkml/2007/7/27/144
Last known good : ?
Submitter       : Jeff Garzik <jeff@garzik.org> 
Caused-By       : ?
Handled-By      : Trond Myklebust <Trond.Myklebust@netapp.com>
Patch           : http://lkml.org/lkml/2007/7/27/183
Status          : patch available



Regards,
Michal

--
LOG
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Re: [1/2] 2.6.23-rc3: known regressions with patches

[Trond Myklebust]

On Mon, 2007-08-13 at 19:59 +0200, Michal Piotrowski wrote:

> FS
> 
> Subject         : NFSv4 poops itself
> References      : http://lkml.org/lkml/2007/7/27/144
> Last known good : ?
> Submitter       : Jeff Garzik <jeff@garzik.org> 
> Caused-By       : ?
> Handled-By      : Trond Myklebust <Trond.Myklebust@netapp.com>
> Patch           : http://lkml.org/lkml/2007/7/27/183
> Status          : patch available

A fix for this was merged by Linus prior to the release of 2.6.23-rc3.

Cheers
  Trond

Re: [1/2] 2.6.23-rc3: known regressions with patches

[Michal Piotrowski]

On 13/08/07, Trond Myklebust <Trond.Myklebust@netapp.com> wrote:
> On Mon, 2007-08-13 at 19:59 +0200, Michal Piotrowski wrote:
>
> > FS
> >
> > Subject         : NFSv4 poops itself
> > References      : http://lkml.org/lkml/2007/7/27/144
> > Last known good : ?
> > Submitter       : Jeff Garzik <jeff@garzik.org>
> > Caused-By       : ?
> > Handled-By      : Trond Myklebust <Trond.Myklebust@netapp.com>
> > Patch           : http://lkml.org/lkml/2007/7/27/183
> > Status          : patch available
>
> A fix for this was merged by Linus prior to the release of 2.6.23-rc3.

commit b247bbf1da69ce376aa1ceb8057331214589e366
I overlooked it.

Regards,
Michal

-- 
LOG
http://www.stardust.webpages.pl/log/

Re: [1/2] 2.6.23-rc3: known regressions with patches

[Jan Engelhardt]

On Aug 13 2007 19:59, Michal Piotrowski wrote:
>
>Subject         : Kconfig prompts without help text
>References      : http://lkml.org/lkml/2007/7/16/326
>Last known good : ?
>Submitter       : Stefan Richter <stefanr@s5r6.in-berlin.de>
>Caused-By       : ?
>Handled-By      : Jan Engelhardt <jengelh@linux01.gwdg.de>
>Patch           : http://lkml.org/lkml/2007/7/18/236
>Status          : patch available

Is there some special magic needed (like resubmit), or will you slurp this one
yourself?



	Jan
-- 

[PATCH] Add some help texts to recently-introduced kconfig items

[Stefan Richter]

On 13 Aug, Jan Engelhardt wrote:
> 
> On Aug 13 2007 19:59, Michal Piotrowski wrote:
>>
>>Subject         : Kconfig prompts without help text
>>References      : http://lkml.org/lkml/2007/7/16/326
>>Last known good : ?
>>Submitter       : Stefan Richter <stefanr@s5r6.in-berlin.de>
>>Caused-By       : ?
>>Handled-By      : Jan Engelhardt <jengelh@linux01.gwdg.de>
>>Patch           : http://lkml.org/lkml/2007/7/18/236
>>Status          : patch available
> 
> Is there some special magic needed (like resubmit), or will you slurp this one
> yourself?


From: Jan Engelhardt <jengelh@computergmbh.de>
Subject: Add some help texts to recently-introduced kconfig items

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (edited MACINTOSH_DRIVERS per Geert Uytterhoeven's remark)
---

fixes a regression in 2.6.23-rc1:  new Kconfig prompts without help text

 arch/i386/Kconfig          |    5 +++++
 drivers/atm/Kconfig        |    5 +++++
 drivers/auxdisplay/Kconfig |    5 +++++
 drivers/block/Kconfig      |    6 ++++++
 drivers/crypto/Kconfig     |    5 +++++
 drivers/hid/Kconfig        |    5 +++++
 drivers/kvm/Kconfig        |    5 +++++
 drivers/macintosh/Kconfig  |    5 +++++
 drivers/misc/Kconfig       |    5 +++++
 drivers/net/Kconfig        |   15 +++++++++++++++
 drivers/usb/Kconfig        |    3 +++
 11 files changed, 64 insertions(+)

Index: linux-2.6.23-rc3/arch/i386/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/arch/i386/Kconfig
+++ linux-2.6.23-rc3/arch/i386/Kconfig
@@ -1228,6 +1228,11 @@ menuconfig INSTRUMENTATION
 	bool "Instrumentation Support"
 	depends on EXPERIMENTAL
 	default y
+	---help---
+	  Say Y here to get to see options related to performance measurement,
+	  debugging, and testing. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if INSTRUMENTATION
 
Index: linux-2.6.23-rc3/drivers/atm/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/atm/Kconfig
+++ linux-2.6.23-rc3/drivers/atm/Kconfig
@@ -6,6 +6,11 @@ menuconfig ATM_DRIVERS
 	bool "ATM drivers"
 	depends on NETDEVICES && ATM
 	default y
+	---help---
+	  Say Y here to get to see options for Asynchronous Transfer Mode
+	  device drivers. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if ATM_DRIVERS && NETDEVICES && ATM
 
Index: linux-2.6.23-rc3/drivers/auxdisplay/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/auxdisplay/Kconfig
+++ linux-2.6.23-rc3/drivers/auxdisplay/Kconfig
@@ -8,6 +8,11 @@
 menuconfig AUXDISPLAY
 	depends on PARPORT
 	bool "Auxiliary Display support"
+	---help---
+	  Say Y here to get to see options for auxiliary display drivers.
+	  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if AUXDISPLAY && PARPORT
 
Index: linux-2.6.23-rc3/drivers/block/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/block/Kconfig
+++ linux-2.6.23-rc3/drivers/block/Kconfig
@@ -6,6 +6,12 @@ menuconfig BLK_DEV
 	bool "Block devices"
 	depends on BLOCK
 	default y
+	---help---
+	  Say Y here to get to see options for various different block device
+	  drivers. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled;
+	  only do this if you know what you are doing.
 
 if BLK_DEV
 
Index: linux-2.6.23-rc3/drivers/crypto/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/crypto/Kconfig
+++ linux-2.6.23-rc3/drivers/crypto/Kconfig
@@ -2,6 +2,11 @@
 menuconfig CRYPTO_HW
 	bool "Hardware crypto devices"
 	default y
+	---help---
+	  Say Y here to get to see options for hardware crypto devices and
+	  processors. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if CRYPTO_HW
 
Index: linux-2.6.23-rc3/drivers/hid/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/hid/Kconfig
+++ linux-2.6.23-rc3/drivers/hid/Kconfig
@@ -5,6 +5,11 @@ menuconfig HID_SUPPORT
 	bool "HID Devices"
 	depends on INPUT
 	default y
+	---help---
+	  Say Y here to get to see options for various computer-human interface
+	  device drivers. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if HID_SUPPORT
 
Index: linux-2.6.23-rc3/drivers/kvm/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/kvm/Kconfig
+++ linux-2.6.23-rc3/drivers/kvm/Kconfig
@@ -5,6 +5,11 @@ menuconfig VIRTUALIZATION
 	bool "Virtualization"
 	depends on X86
 	default y
+	---help---
+	  Say Y here to get to see options for virtualization guest drivers.
+	  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if VIRTUALIZATION
 
Index: linux-2.6.23-rc3/drivers/macintosh/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/macintosh/Kconfig
+++ linux-2.6.23-rc3/drivers/macintosh/Kconfig
@@ -3,6 +3,11 @@ menuconfig MACINTOSH_DRIVERS
 	bool "Macintosh device drivers"
 	depends on PPC || MAC || X86
 	default y if (PPC_PMAC || MAC)
+	---help---
+	  Say Y here to get to see options for devices used with Macintosh
+	  computers. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if MACINTOSH_DRIVERS
 
Index: linux-2.6.23-rc3/drivers/misc/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/misc/Kconfig
+++ linux-2.6.23-rc3/drivers/misc/Kconfig
@@ -5,6 +5,11 @@
 menuconfig MISC_DEVICES
 	bool "Misc devices"
 	default y
+	---help---
+	  Say Y here to get to see options for device drivers from various
+	  different categories. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if MISC_DEVICES
 
Index: linux-2.6.23-rc3/drivers/net/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/net/Kconfig
+++ linux-2.6.23-rc3/drivers/net/Kconfig
@@ -1968,6 +1968,16 @@ menuconfig NETDEV_1000
 	bool "Ethernet (1000 Mbit)"
 	depends on !UML
 	default y
+	---help---
+	  Ethernet (also called IEEE 802.3 or ISO 8802-2) is the most common
+	  type of Local Area Network (LAN) in universities and companies.
+
+	  Say Y here to get to see options for Gigabit Ethernet drivers.
+	  This option alone does not add any kernel code.
+	  Note that drivers supporting both 100 and 1000 MBit may be listed
+	  under "Ethernet (10 or 100MBit)" instead.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if NETDEV_1000
 
@@ -2339,6 +2349,11 @@ menuconfig NETDEV_10000
 	bool "Ethernet (10000 Mbit)"
 	depends on !UML
 	default y
+	---help---
+	  Say Y here to get to see options for 10 Gigabit Ethernet drivers.
+	  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
 
 if NETDEV_10000
 
Index: linux-2.6.23-rc3/drivers/usb/Kconfig
===================================================================
--- linux-2.6.23-rc3.orig/drivers/usb/Kconfig
+++ linux-2.6.23-rc3/drivers/usb/Kconfig
@@ -6,6 +6,9 @@ menuconfig USB_SUPPORT
 	bool "USB support"
 	depends on HAS_IOMEM
 	default y
+	---help---
+	  This option adds core support for Universal Serial Bus (USB).
+	  You will also need drivers from the following menu to make use of it.
 
 if USB_SUPPORT
 



-- 
Stefan Richter
-=====-=-=== =--- =--=-
http://arcgraph.de/sr/

Re: [1/2] 2.6.23-rc3: known regressions with patches

[Andi Kleen]

> Unclassified
> 
> Subject         : reset during bootup - 2.6.23-rc2 (git d23cf676)

This is already fixed in mainline

There is a real regression with failing builds on some old binutils on 
x86-64 know, but I don't know how to fix it.

-Andi

Re: [1/2] 2.6.23-rc3: known regressions with patches

[Michal Piotrowski]

On 13/08/07, Andi Kleen <andi@firstfloor.org> wrote:
> > Unclassified
> >
> > Subject         : reset during bootup - 2.6.23-rc2 (git d23cf676)
>
> This is already fixed in mainline

commit b8d3f2448b8f4ba24f301e23585547ba1acc1f04

>
> There is a real regression with failing builds on some old binutils on
> x86-64 know, but I don't know how to fix it.

Did you mean this?

Subject         : /usr/bin/ld: section .text [ffffffffff700500 ->
ffffffffff7007e3] overlaps section .gnu.version_d [ffffffffff7004d8 ->
ffffffffff70050f]
References      : http://lkml.org/lkml/2007/7/22/239
Last known good : ?
Submitter       : Andre Noll <maan@systemlinux.org>
Caused-By       : ?
Handled-By      : Andi Kleen <ak@suse.de>
Status          : problem is being debugged

>
> -Andi
>

Regards,
Michal

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LOG
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Re: [1/2] 2.6.23-rc3: known regressions with patches

[Andi Kleen]

On Mon, Aug 13, 2007 at 10:24:52PM +0200, Michal Piotrowski wrote:
> On 13/08/07, Andi Kleen <andi@firstfloor.org> wrote:
> > > Unclassified
> > >
> > > Subject         : reset during bootup - 2.6.23-rc2 (git d23cf676)
> >
> > This is already fixed in mainline
> 
> commit b8d3f2448b8f4ba24f301e23585547ba1acc1f04
> 
> >
> > There is a real regression with failing builds on some old binutils on
> > x86-64 know, but I don't know how to fix it.
> 
> Did you mean this?

Yes. Anyways it be likely a WONT-FIX -- aka document newer binutils
version required. We haven't had any other reports so likely
that version is not too widely used.

-Andi

Re: [1/2] 2.6.23-rc3: known regressions with patches

[Adrian Bunk]

On Mon, Aug 13, 2007 at 10:56:53PM +0200, Andi Kleen wrote:
> On Mon, Aug 13, 2007 at 10:24:52PM +0200, Michal Piotrowski wrote:
> > On 13/08/07, Andi Kleen <andi@firstfloor.org> wrote:
> > > > Unclassified
> > > >
> > > > Subject         : reset during bootup - 2.6.23-rc2 (git d23cf676)
> > >
> > > This is already fixed in mainline
> > 
> > commit b8d3f2448b8f4ba24f301e23585547ba1acc1f04
> > 
> > >
> > > There is a real regression with failing builds on some old binutils on
> > > x86-64 know, but I don't know how to fix it.
> > 
> > Did you mean this?
> 
> Yes. Anyways it be likely a WONT-FIX -- aka document newer binutils
> version required. We haven't had any other reports so likely
> that version is not too widely used.

IOW: Either the Linux binutils >= 2.17.50.0.3 or the not yet released 
GNU binutils 2.18 are now required.

Debian 4.0 has older ones, and all distributions released more than a 
year ago for sure also have older ones (the required patch went into 
binutils CVS on 2006-05-30 and 2.17.50.0.3 was released on 2006-07-15).

Isn't that a bit too recent?

> -Andi

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

binutils trouble was Re: [1/2] 2.6.23-rc3: known regressions with patches

[Andi Kleen]

On Mon, Aug 13, 2007 at 11:29:47PM +0200, Adrian Bunk wrote:
> Debian 4.0 has older ones, and all distributions released more than a 
> year ago for sure also have older ones (the required patch went into 
> binutils CVS on 2006-05-30 and 2.17.50.0.3 was released on 2006-07-15).

I have no problem on SUSE 10.0 (2.16.91.0.2-8) or SLES9 (2.15.90.0.1.1-32.10) 
which are both far older than a year.  Both produce good looking
vdso.sos.

sles8 (2.12.90.0.15; it was really one of the first production
binutils for x86-64) doesn't work out of the box (looks like as-instr doesn't 
work anymore and it has another assembler issue I'll fix) 
but with that workarounded it also builds a reasonble looking vdso

Sam, can you please take a look at the as-instr issue? It seems
to succeed now when it should fail.

It would be useful if someone could find out which binutils versions
really not work.

-Andi

Re: binutils trouble was Re: [1/2] 2.6.23-rc3: known regressions with patches

[Adrian Bunk]

On Tue, Aug 14, 2007 at 12:42:05AM +0200, Andi Kleen wrote:
> On Mon, Aug 13, 2007 at 11:29:47PM +0200, Adrian Bunk wrote:
> > Debian 4.0 has older ones, and all distributions released more than a 
> > year ago for sure also have older ones (the required patch went into 
> > binutils CVS on 2006-05-30 and 2.17.50.0.3 was released on 2006-07-15).
> 
> I have no problem on SUSE 10.0 (2.16.91.0.2-8) or SLES9 (2.15.90.0.1.1-32.10) 
> which are both far older than a year.  Both produce good looking
> vdso.sos.

OK sorry, then I misunderstood it and missing -Wl,-z,max-page-size=4096 
-Wl,-z,common-page-size=4096 support is not the problem.

> sles8 (2.12.90.0.15; it was really one of the first production
> binutils for x86-64) doesn't work out of the box (looks like as-instr doesn't 
> work anymore and it has another assembler issue I'll fix) 
> but with that workarounded it also builds a reasonble looking vdso

We had several reports of 2.12* not working (AFAIR also on i386), so 
that's not a surprise.

> Sam, can you please take a look at the as-instr issue? It seems
> to succeed now when it should fail.
> 
> It would be useful if someone could find out which binutils versions
> really not work.

If Andre is working under Debian 3.1 (as his gcc version indicates) he's 
using 2.15, and together with your SLES9 test it seems the border is 
somewhere between 2.15 and 2.16.

> -Andi

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Re: binutils trouble was Re: [1/2] 2.6.23-rc3: known regressions with patches

[Andi Kleen]

On Tue, Aug 14, 2007 at 12:54:10AM +0200, Adrian Bunk wrote:
> On Tue, Aug 14, 2007 at 12:42:05AM +0200, Andi Kleen wrote:
> > On Mon, Aug 13, 2007 at 11:29:47PM +0200, Adrian Bunk wrote:
> > > Debian 4.0 has older ones, and all distributions released more than a 
> > > year ago for sure also have older ones (the required patch went into 
> > > binutils CVS on 2006-05-30 and 2.17.50.0.3 was released on 2006-07-15).
> > 
> > I have no problem on SUSE 10.0 (2.16.91.0.2-8) or SLES9 (2.15.90.0.1.1-32.10) 
> > which are both far older than a year.  Both produce good looking
> > vdso.sos.
> 
> OK sorry, then I misunderstood it and missing -Wl,-z,max-page-size=4096 
> -Wl,-z,common-page-size=4096 support is not the problem.

It might be. The change to default to 1MB pages happened 
some time ago and then the common-page-size options were
added some time after that.

I expect you'll get the obscenly large 1MB vdso if your
binutils happens to fall inside that time window, but before or 
after should be ok.

I haven't tested it, but in theory a 1MB vdso should
work (just waste a lot of memory and probably some CPU time)

I was pondering to add a build time test for this and fail
(not sure it's worth it)

But the header offset problem that actually broke
the compilation seemed to be something else, probably
some sort of bug.

> > sles8 (2.12.90.0.15; it was really one of the first production
> > binutils for x86-64) doesn't work out of the box (looks like as-instr doesn't 
> > work anymore and it has another assembler issue I'll fix) 
> > but with that workarounded it also builds a reasonble looking vdso
> 
> We had several reports of 2.12* not working (AFAIR also on i386), so 
> that's not a surprise.

Ah I didn't see those. I should test it more often perhaps.

I'll take a detailed look later, perhaps it's easy to fix.

> > Sam, can you please take a look at the as-instr issue? It seems
> > to succeed now when it should fail.
> > 
> > It would be useful if someone could find out which binutils versions
> > really not work.
> 
> If Andre is working under Debian 3.1 (as his gcc version indicates) he's 
> using 2.15, and together with your SLES9 test it seems the border is 
> somewhere between 2.15 and 2.16.

Could someone confirm? Then it could be documented.

-Andi

Re: binutils trouble was Re: [1/2] 2.6.23-rc3: known regressions with patches

[Sam Ravnborg]

On Tue, Aug 14, 2007 at 12:42:05AM +0200, Andi Kleen wrote:
> On Mon, Aug 13, 2007 at 11:29:47PM +0200, Adrian Bunk wrote:
> > Debian 4.0 has older ones, and all distributions released more than a 
> > year ago for sure also have older ones (the required patch went into 
> > binutils CVS on 2006-05-30 and 2.17.50.0.3 was released on 2006-07-15).
> 
> I have no problem on SUSE 10.0 (2.16.91.0.2-8) or SLES9 (2.15.90.0.1.1-32.10) 
> which are both far older than a year.  Both produce good looking
> vdso.sos.
> 
> sles8 (2.12.90.0.15; it was really one of the first production
> binutils for x86-64) doesn't work out of the box (looks like as-instr doesn't 
> work anymore and it has another assembler issue I'll fix) 
> but with that workarounded it also builds a reasonble looking vdso
> 
> Sam, can you please take a look at the as-instr issue? It seems
> to succeed now when it should fail.
> 
> It would be useful if someone could find out which binutils versions
> really not work.

Hi Andi.
I never got around to do any exhaustive check on as-instr.
I assume it was the .cfi_rel_offset thing that caused you to
assume as-instr was failing?
If not let me know if your request is still valid.

And sorry for being late on this. Busy and had forgotten this mail.

	Sam