2007-10-21 19:23:37

by Thomas Meyer

[permalink] [raw]
Subject: Device mapper regression 2.6.23 vs. v2.6.23-6597-gcfa76f0

Hi.

I have an external hard drive with an encrypted partition. I am using
kde so all i had to do under 2.6.23 was
"cryptsetup luksOpen /dev/sdb2 crypt-extern"

then udev/hal/kde (?)automatically created an desktop icon. i could
click this icon to mount and open the drive.

when i do the luksOpen command with v2.6.23-6597-gcfa76f0 this icon is
not created anymore.

a few commits were made in drivers/md, so it seems something broke.

config extract:

CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
# CONFIG_DM_MULTIPATH is not set
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
# CONFIG_FUSION is not set

any ideas?

mfg
thomas


2007-10-29 07:19:17

by Andrew Morton

[permalink] [raw]
Subject: Re: Device mapper regression 2.6.23 vs. v2.6.23-6597-gcfa76f0

On Sun, 21 Oct 2007 21:23:21 +0200 Thomas Meyer <[email protected]> wrote:

> Hi.
>
> I have an external hard drive with an encrypted partition. I am using
> kde so all i had to do under 2.6.23 was
> "cryptsetup luksOpen /dev/sdb2 crypt-extern"
>
> then udev/hal/kde (?)automatically created an desktop icon. i could
> click this icon to mount and open the drive.
>
> when i do the luksOpen command with v2.6.23-6597-gcfa76f0 this icon is
> not created anymore.
>
> a few commits were made in drivers/md, so it seems something broke.
>
> config extract:
>
> CONFIG_MD=y
> # CONFIG_BLK_DEV_MD is not set
> CONFIG_BLK_DEV_DM=y
> # CONFIG_DM_DEBUG is not set
> CONFIG_DM_CRYPT=y
> CONFIG_DM_SNAPSHOT=m
> CONFIG_DM_MIRROR=m
> CONFIG_DM_ZERO=m
> # CONFIG_DM_MULTIPATH is not set
> CONFIG_DM_DELAY=m
> CONFIG_DM_UEVENT=y
> # CONFIG_FUSION is not set
>
> any ideas?
>

Could be DM breakage, could be udev/sysfs breakage. Is it still happening
in current mainline?

And how come I'm seeing unresponded-to-for-a-week regression
reports on lkml?

2007-10-29 11:57:43

by Kay Sievers

[permalink] [raw]
Subject: Re: Device mapper regression 2.6.23 vs. v2.6.23-6597-gcfa76f0

On Mon, 2007-10-29 at 00:18 -0700, Andrew Morton wrote:
> On Sun, 21 Oct 2007 21:23:21 +0200 Thomas Meyer <[email protected]> wrote:
> >
> > I have an external hard drive with an encrypted partition. I am using
> > kde so all i had to do under 2.6.23 was
> > "cryptsetup luksOpen /dev/sdb2 crypt-extern"
> >
> > then udev/hal/kde (?)automatically created an desktop icon. i could
> > click this icon to mount and open the drive.
> >
> > when i do the luksOpen command with v2.6.23-6597-gcfa76f0 this icon is
> > not created anymore.
> >
> > a few commits were made in drivers/md, so it seems something broke.
> >
> > config extract:
> >
> > CONFIG_MD=y
> > # CONFIG_BLK_DEV_MD is not set
> > CONFIG_BLK_DEV_DM=y
> > # CONFIG_DM_DEBUG is not set
> > CONFIG_DM_CRYPT=y
> > CONFIG_DM_SNAPSHOT=m
> > CONFIG_DM_MIRROR=m
> > CONFIG_DM_ZERO=m
> > # CONFIG_DM_MULTIPATH is not set
> > CONFIG_DM_DELAY=m
> > CONFIG_DM_UEVENT=y
> > # CONFIG_FUSION is not set
> >
> > any ideas?
> >
>
> Could be DM breakage, could be udev/sysfs breakage. Is it still happening
> in current mainline?

There are no obvious changes, which I would expect to cause a breakage
in this area.

> And how come I'm seeing unresponded-to-for-a-week regression
> reports on lkml?

It works fine with 2.6.24-rc1+ and GNOME, even without any initial shell
command to set it up. Just inserting a LUKS volume, brings up a password
dialog, and then mounts all automatically.

There was a timing problem fix in HAL (in 0.5.10), maybe that is what
happens here.

Kay

2007-11-02 17:03:43

by Thomas Meyer

[permalink] [raw]
Subject: Re: Device mapper regression 2.6.23 vs. v2.6.23-6597-gcfa76f0

Kay Sievers schrieb:
> On Mon, 2007-10-29 at 00:18 -0700, Andrew Morton wrote:
>
>> On Sun, 21 Oct 2007 21:23:21 +0200 Thomas Meyer <[email protected]> wrote:
>>
>>> I have an external hard drive with an encrypted partition. I am using
>>> kde so all i had to do under 2.6.23 was
>>> "cryptsetup luksOpen /dev/sdb2 crypt-extern"
>>>
>>> then udev/hal/kde (?)automatically created an desktop icon. i could
>>> click this icon to mount and open the drive.
>>>
>>> when i do the luksOpen command with v2.6.23-6597-gcfa76f0 this icon is
>>> not created anymore.
>>>
>>> a few commits were made in drivers/md, so it seems something broke.
>>>
>>> config extract:
>>>
>>> CONFIG_MD=y
>>> # CONFIG_BLK_DEV_MD is not set
>>> CONFIG_BLK_DEV_DM=y
>>> # CONFIG_DM_DEBUG is not set
>>> CONFIG_DM_CRYPT=y
>>> CONFIG_DM_SNAPSHOT=m
>>> CONFIG_DM_MIRROR=m
>>> CONFIG_DM_ZERO=m
>>> # CONFIG_DM_MULTIPATH is not set
>>> CONFIG_DM_DELAY=m
>>> CONFIG_DM_UEVENT=y
>>> # CONFIG_FUSION is not set
>>>
>>> any ideas?
>>>
>>>
>> Could be DM breakage, could be udev/sysfs breakage. Is it still happening
>> in current mainline?
>>
>
> There are no obvious changes, which I would expect to cause a breakage
> in this area.
>
>
>> And how come I'm seeing unresponded-to-for-a-week regression
>> reports on lkml?
>>
>
> It works fine with 2.6.24-rc1+ and GNOME, even without any initial shell
> command to set it up. Just inserting a LUKS volume, brings up a password
> dialog, and then mounts all automatically.
>
> There was a timing problem fix in HAL (in 0.5.10), maybe that is what
> happens here.
>
Hal version is 0.5.9.1-r2.

to make things clear:
boot 2.6.23 doing "cryptsetup luksOpen /dev/sdb2 crypt-extern" -> kde
asks to mount new device
boot v2.6.24-rc1-497-gb1d08ac doing "cryptsetup luksOpen /dev/sdb2
crypt-extern" -> nothing happens in kde.

same user land, different kernel.

2007-11-02 17:12:20

by Kay Sievers

[permalink] [raw]
Subject: Re: Device mapper regression 2.6.23 vs. v2.6.23-6597-gcfa76f0


On Fri, 2007-11-02 at 18:03 +0100, Thomas Meyer wrote:
> Kay Sievers schrieb:
> > On Mon, 2007-10-29 at 00:18 -0700, Andrew Morton wrote:
> >
> >> On Sun, 21 Oct 2007 21:23:21 +0200 Thomas Meyer <[email protected]> wrote:
> >>
> >>> I have an external hard drive with an encrypted partition. I am using
> >>> kde so all i had to do under 2.6.23 was
> >>> "cryptsetup luksOpen /dev/sdb2 crypt-extern"
> >>>
> >>> then udev/hal/kde (?)automatically created an desktop icon. i could
> >>> click this icon to mount and open the drive.
> >>>
> >>> when i do the luksOpen command with v2.6.23-6597-gcfa76f0 this icon is
> >>> not created anymore.
> >>>
> >>> a few commits were made in drivers/md, so it seems something broke.
> >>>
> >>> config extract:
> >>>
> >>> CONFIG_MD=y
> >>> # CONFIG_BLK_DEV_MD is not set
> >>> CONFIG_BLK_DEV_DM=y
> >>> # CONFIG_DM_DEBUG is not set
> >>> CONFIG_DM_CRYPT=y
> >>> CONFIG_DM_SNAPSHOT=m
> >>> CONFIG_DM_MIRROR=m
> >>> CONFIG_DM_ZERO=m
> >>> # CONFIG_DM_MULTIPATH is not set
> >>> CONFIG_DM_DELAY=m
> >>> CONFIG_DM_UEVENT=y
> >>> # CONFIG_FUSION is not set
> >>>
> >>> any ideas?
> >>>
> >>>
> >> Could be DM breakage, could be udev/sysfs breakage. Is it still happening
> >> in current mainline?
> >>
> >
> > There are no obvious changes, which I would expect to cause a breakage
> > in this area.
> >
> >> And how come I'm seeing unresponded-to-for-a-week regression
> >> reports on lkml?
> >>
> >
> > It works fine with 2.6.24-rc1+ and GNOME, even without any initial shell
> > command to set it up. Just inserting a LUKS volume, brings up a password
> > dialog, and then mounts all automatically.
> >
> > There was a timing problem fix in HAL (in 0.5.10), maybe that is what
> > happens here.
> >
> Hal version is 0.5.9.1-r2.
>
> to make things clear:
> boot 2.6.23 doing "cryptsetup luksOpen /dev/sdb2 crypt-extern" -> kde
> asks to mount new device
> boot v2.6.24-rc1-497-gb1d08ac doing "cryptsetup luksOpen /dev/sdb2
> crypt-extern" -> nothing happens in kde.
>
> same user land, different kernel.

Yeah, but I expect it to be a timing problem, which may show up with a
new kernel. The kernel is maybe just that bit faster in the event
generation, that it triggers a silly HAL bug. You probably need:
http://gitweb.freedesktop.org/?p=hal.git;a=commit;h=f3e160d0ab85f62b76400cb521b4d1b5813d0711

It's all fine here regarding LUKS volumes, therefore I wouldn't know
what would be wrong at the kernel side.

Kay

2007-11-27 17:06:30

by Thomas Meyer

[permalink] [raw]
Subject: Re: Device mapper regression 2.6.23 vs. v2.6.23-6597-gcfa76f0

Kay Sievers schrieb:
> On Fri, 2007-11-02 at 18:03 +0100, Thomas Meyer wrote:
>
>> Kay Sievers schrieb:
>>
>>> On Mon, 2007-10-29 at 00:18 -0700, Andrew Morton wrote:
>>>
>>>
>>>> On Sun, 21 Oct 2007 21:23:21 +0200 Thomas Meyer <[email protected]> wrote:
>>>>
>>>>
>>>>> I have an external hard drive with an encrypted partition. I am using
>>>>> kde so all i had to do under 2.6.23 was
>>>>> "cryptsetup luksOpen /dev/sdb2 crypt-extern"
>>>>>
>>>>> then udev/hal/kde (?)automatically created an desktop icon. i could
>>>>> click this icon to mount and open the drive.
>>>>>
>>>>> when i do the luksOpen command with v2.6.23-6597-gcfa76f0 this icon is
>>>>> not created anymore.
>>>>>
>>>>> a few commits were made in drivers/md, so it seems something broke.
>>>>>
>>>>> config extract:
>>>>>
>>>>> CONFIG_MD=y
>>>>> # CONFIG_BLK_DEV_MD is not set
>>>>> CONFIG_BLK_DEV_DM=y
>>>>> # CONFIG_DM_DEBUG is not set
>>>>> CONFIG_DM_CRYPT=y
>>>>> CONFIG_DM_SNAPSHOT=m
>>>>> CONFIG_DM_MIRROR=m
>>>>> CONFIG_DM_ZERO=m
>>>>> # CONFIG_DM_MULTIPATH is not set
>>>>> CONFIG_DM_DELAY=m
>>>>> CONFIG_DM_UEVENT=y
>>>>> # CONFIG_FUSION is not set
>>>>>
>>>>> any ideas?
>>>>>
>>>>>
>>>>>
>>>> Could be DM breakage, could be udev/sysfs breakage. Is it still happening
>>>> in current mainline?
>>>>
>>>>
>>> There are no obvious changes, which I would expect to cause a breakage
>>> in this area.
>>>
>>>
>>>> And how come I'm seeing unresponded-to-for-a-week regression
>>>> reports on lkml?
>>>>
>>>>
>>> It works fine with 2.6.24-rc1+ and GNOME, even without any initial shell
>>> command to set it up. Just inserting a LUKS volume, brings up a password
>>> dialog, and then mounts all automatically.
>>>
>>> There was a timing problem fix in HAL (in 0.5.10), maybe that is what
>>> happens here.
>>>
>>>
>> Hal version is 0.5.9.1-r2.
>>
>> to make things clear:
>> boot 2.6.23 doing "cryptsetup luksOpen /dev/sdb2 crypt-extern" -> kde
>> asks to mount new device
>> boot v2.6.24-rc1-497-gb1d08ac doing "cryptsetup luksOpen /dev/sdb2
>> crypt-extern" -> nothing happens in kde.
>>
>> same user land, different kernel.
>>
>
> Yeah, but I expect it to be a timing problem, which may show up with a
> new kernel. The kernel is maybe just that bit faster in the event
> generation, that it triggers a silly HAL bug. You probably need:
> http://gitweb.freedesktop.org/?p=hal.git;a=commit;h=f3e160d0ab85f62b76400cb521b4d1b5813d0711
>
> It's all fine here regarding LUKS volumes, therefore I wouldn't know
> what would be wrong at the kernel side.
>
>
Yes. With hal-0.5.10 (which includes above commit) the new kernel
behaves like 2.6.23 again.

mfg
thomas