Regressions w.r.t. suspend behaviour in recent kernel versions

Regressions w.r.t. suspend behaviour in recent kernel versions

[Felix Homann]

Hi,

I've been experiencing several problems with s2ram/s2disk with recent 
kernels (mostly starting with 2.6.19):

1. s2disk won't work without the nolapic kernel option.

I didn't have to use that option with kernels < 2.6.19. I only found out 
that I need this option with the kind help from Rafael Wysocki. 
Unfortunately, using the nolapic option raises new problems as I'm 
getting these warnings at boot time (with kernel 2.6.23-rc2):

++++++++++++++++++++++++++++++++++++

Aug  9 00:22:13 jawaka kernel: EXT3-fs: mounted filesystem with ordered
data mode.
Aug  9 00:22:13 jawaka kernel: WARNING: at kernel/irq/resend.c:70
check_irq_resend()
Aug  9 00:22:13 jawaka kernel:  [<c014afab>] check_irq_resend+0xab/0xc0
Aug  9 00:22:13 jawaka kernel:  [<c014ab99>] enable_irq+0xc9/0xd0
Aug  9 00:22:13 jawaka kernel:  [<c026ab54>]
ide_config_drive_speed+0x164/0x380
Aug  9 00:22:13 jawaka kernel:  [<c0266162>] piix_tune_chipset+0x1f2/0x3d0
Aug  9 00:22:13 jawaka kernel:  [<c0270bfb>] ide_tune_dma+0x3b/0x50
Aug  9 00:22:13 jawaka kernel:  [<c0265eec>]
piix_config_drive_xfer_rate+0xc/0x40
Aug  9 00:22:13 jawaka kernel:  [<c026fbfe>] ide_set_dma+0xe/0x40
Aug  9 00:22:13 jawaka kernel:  [<c0266c2d>] set_using_dma+0x8d/0xe0
Aug  9 00:22:13 jawaka kernel:  [<c0266ba0>] set_using_dma+0x0/0xe0
Aug  9 00:22:13 jawaka kernel:  [<c026797c>] generic_ide_ioctl+0xdc/0x430
Aug  9 00:22:13 jawaka kernel:  [<c0273722>] idedisk_ioctl+0xf2/0x120
Aug  9 00:22:13 jawaka kernel:  [<c01eb900>] blk_end_sync_rq+0x0/0x30
Aug  9 00:22:13 jawaka kernel:  [<c0273672>] idedisk_ioctl+0x42/0x120
Aug  9 00:22:13 jawaka kernel:  [<c0273630>] idedisk_ioctl+0x0/0x120
Aug  9 00:22:13 jawaka kernel:  [<c01ee194>] blkdev_driver_ioctl+0x54/0x60
Aug  9 00:22:13 jawaka kernel:  [<c01ee538>] blkdev_ioctl+0x358/0x7b0
Aug  9 00:22:13 jawaka kernel:  [<c02faefb>] _read_unlock_irq+0x1b/0x20
Aug  9 00:22:13 jawaka kernel:  [<c0157e7f>] __do_fault+0x15f/0x340
Aug  9 00:22:13 jawaka kernel:  [<c0157e23>] __do_fault+0x103/0x340
Aug  9 00:22:13 jawaka kernel:  [<c0157e88>] __do_fault+0x168/0x340
Aug  9 00:22:13 jawaka kernel:  [<c01160bb>] do_page_fault+0x18b/0x6b0
Aug  9 00:22:13 jawaka kernel:  [<c0115ff7>] do_page_fault+0xc7/0x6b0
Aug  9 00:22:13 jawaka kernel:  [<c0134384>] up_read+0x14/0x30
Aug  9 00:22:13 jawaka kernel:  [<c0190388>] block_ioctl+0x18/0x20
Aug  9 00:22:13 jawaka kernel:  [<c0190370>] block_ioctl+0x0/0x20
Aug  9 00:22:13 jawaka kernel:  [<c0176e8f>] do_ioctl+0x1f/0x70
Aug  9 00:22:13 jawaka kernel:  [<c0176f3c>] vfs_ioctl+0x5c/0x260
Aug  9 00:22:13 jawaka kernel:  [<c01771b2>] sys_ioctl+0x72/0x90
Aug  9 00:22:13 jawaka kernel:  [<c01040de>] syscall_call+0x7/0xb
Aug  9 00:22:13 jawaka kernel:  =======================
Aug  9 00:22:13 jawaka kernel: Linux agpgart interface v0.102

+++++++++++++++++++++++++++++++++

Without the nolapic option the kernel will panic when trying to suspend 
to disk. Here are the last lines of the kernel output:

EIP: [<c01127fd> lapic_nmi_suspend+0x1d/0x30 ss:ESP 0068:c1ae3ec8
Kernel panic - not syncing: Attempted to kill init!

Rafael advised me to post directly to the LKML on this issue and so I do.

You can follow the whole discussion with Rafael here:

http://sourceforge.net/mailarchive/forum.php?thread_name=46A9A9A8.2070209%40onlinehome.de&forum_name=suspend-devel
http://sourceforge.net/mailarchive/forum.php?thread_name=200708062038.41452.rjw%40sisk.pl&forum_name=suspend-devel

2. s2ram won't work with kernels > 2.6.18 if the fglrx module is loaded.

Please, don't stone me for using the fglrx driver, without it I couldn't 
  suspend at all. Unfortunately, I'm stuck to kernel 2.6.18 at the 
moment since it's the last kernel that would suspend to ram with the 
fglrx module loaded. With more recent kernels the system will hang with 
"Suspending console(s)".

3. Even with the 2.6.18 kernel sound won't work after suspending to ram. 
I don't know when this started, but I know that this has not been an 
issue in the past.

Please, let me know what additional information you might need.

Kind regards,

Felix

Re: Regressions w.r.t. suspend behaviour in recent kernel versions

[Andrew Morton]

> On Fri, 24 Aug 2007 14:42:55 +0200 Felix Homann <fexpop@onlinehome.de> wrote:

Nearly two weeks, zero replies.

> Hi,
> 
> I've been experiencing several problems with s2ram/s2disk with recent 
> kernels (mostly starting with 2.6.19):
> 
> 1. s2disk won't work without the nolapic kernel option.
> 
> I didn't have to use that option with kernels < 2.6.19. I only found out 
> that I need this option with the kind help from Rafael Wysocki. 
> Unfortunately, using the nolapic option raises new problems as I'm 
> getting these warnings at boot time (with kernel 2.6.23-rc2):
> 
> ++++++++++++++++++++++++++++++++++++
> 
> Aug  9 00:22:13 jawaka kernel: EXT3-fs: mounted filesystem with ordered
> data mode.
> Aug  9 00:22:13 jawaka kernel: WARNING: at kernel/irq/resend.c:70
> check_irq_resend()
> Aug  9 00:22:13 jawaka kernel:  [<c014afab>] check_irq_resend+0xab/0xc0
> Aug  9 00:22:13 jawaka kernel:  [<c014ab99>] enable_irq+0xc9/0xd0
> Aug  9 00:22:13 jawaka kernel:  [<c026ab54>]
> ide_config_drive_speed+0x164/0x380
> Aug  9 00:22:13 jawaka kernel:  [<c0266162>] piix_tune_chipset+0x1f2/0x3d0
> Aug  9 00:22:13 jawaka kernel:  [<c0270bfb>] ide_tune_dma+0x3b/0x50
> Aug  9 00:22:13 jawaka kernel:  [<c0265eec>]
> piix_config_drive_xfer_rate+0xc/0x40
> Aug  9 00:22:13 jawaka kernel:  [<c026fbfe>] ide_set_dma+0xe/0x40
> Aug  9 00:22:13 jawaka kernel:  [<c0266c2d>] set_using_dma+0x8d/0xe0
> Aug  9 00:22:13 jawaka kernel:  [<c0266ba0>] set_using_dma+0x0/0xe0
> Aug  9 00:22:13 jawaka kernel:  [<c026797c>] generic_ide_ioctl+0xdc/0x430
> Aug  9 00:22:13 jawaka kernel:  [<c0273722>] idedisk_ioctl+0xf2/0x120
> Aug  9 00:22:13 jawaka kernel:  [<c01eb900>] blk_end_sync_rq+0x0/0x30
> Aug  9 00:22:13 jawaka kernel:  [<c0273672>] idedisk_ioctl+0x42/0x120
> Aug  9 00:22:13 jawaka kernel:  [<c0273630>] idedisk_ioctl+0x0/0x120
> Aug  9 00:22:13 jawaka kernel:  [<c01ee194>] blkdev_driver_ioctl+0x54/0x60
> Aug  9 00:22:13 jawaka kernel:  [<c01ee538>] blkdev_ioctl+0x358/0x7b0
> Aug  9 00:22:13 jawaka kernel:  [<c02faefb>] _read_unlock_irq+0x1b/0x20
> Aug  9 00:22:13 jawaka kernel:  [<c0157e7f>] __do_fault+0x15f/0x340
> Aug  9 00:22:13 jawaka kernel:  [<c0157e23>] __do_fault+0x103/0x340
> Aug  9 00:22:13 jawaka kernel:  [<c0157e88>] __do_fault+0x168/0x340
> Aug  9 00:22:13 jawaka kernel:  [<c01160bb>] do_page_fault+0x18b/0x6b0
> Aug  9 00:22:13 jawaka kernel:  [<c0115ff7>] do_page_fault+0xc7/0x6b0
> Aug  9 00:22:13 jawaka kernel:  [<c0134384>] up_read+0x14/0x30
> Aug  9 00:22:13 jawaka kernel:  [<c0190388>] block_ioctl+0x18/0x20
> Aug  9 00:22:13 jawaka kernel:  [<c0190370>] block_ioctl+0x0/0x20
> Aug  9 00:22:13 jawaka kernel:  [<c0176e8f>] do_ioctl+0x1f/0x70
> Aug  9 00:22:13 jawaka kernel:  [<c0176f3c>] vfs_ioctl+0x5c/0x260
> Aug  9 00:22:13 jawaka kernel:  [<c01771b2>] sys_ioctl+0x72/0x90
> Aug  9 00:22:13 jawaka kernel:  [<c01040de>] syscall_call+0x7/0xb

I expect that got fixed in later kernels.

Beware that 2.6.24-rc5 is uselessly buggy, so
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.23-rc5-git1.gz
would be a better kernel to test to check that we fixed this warning.


> Aug  9 00:22:13 jawaka kernel:  =======================
> Aug  9 00:22:13 jawaka kernel: Linux agpgart interface v0.102
> 
> +++++++++++++++++++++++++++++++++
> 
> Without the nolapic option the kernel will panic when trying to suspend 
> to disk.

A *large* number of people need noapic or nolapic to get Linux to work.

> Here are the last lines of the kernel output:
> 
> EIP: [<c01127fd> lapic_nmi_suspend+0x1d/0x30 ss:ESP 0068:c1ae3ec8
> Kernel panic - not syncing: Attempted to kill init!

Are you able to provide us with more information about this bug?  A digital
photograph of the screen would suit, or perhaps you can generate a full
trace with netconsole (Documentation/networking/netconsole.txt), although
suspend+netconsole tends to be a bad (and recently worsening) combination.

> Rafael advised me to post directly to the LKML on this issue and so I do.

Thanks.  Please continue to do so.

> You can follow the whole discussion with Rafael here:
> 
> http://sourceforge.net/mailarchive/forum.php?thread_name=46A9A9A8.2070209%40onlinehome.de&forum_name=suspend-devel
> http://sourceforge.net/mailarchive/forum.php?thread_name=200708062038.41452.rjw%40sisk.pl&forum_name=suspend-devel
> 
> 2. s2ram won't work with kernels > 2.6.18 if the fglrx module is loaded.
> 
> Please, don't stone me for using the fglrx driver, without it I couldn't 
>   suspend at all. Unfortunately, I'm stuck to kernel 2.6.18 at the 
> moment since it's the last kernel that would suspend to ram with the 
> fglrx module loaded. With more recent kernels the system will hang with 
> "Suspending console(s)".

My Vaio reliably hangs at the same place with 2.6.23-rc4.  I'll bisect that
next week sometime.  Hopefully the result of that effort will fix your bug.
 Please test Linus's tree regularly and don't let us release 2.6.23 until
it is fixed.

> 3. Even with the 2.6.18 kernel sound won't work after suspending to ram. 
> I don't know when this started, but I know that this has not been an 
> issue in the past.

Please provide full details in a separate bug report.  Send that report to
myself, linux-kernel@vger.kernel.org, Jaroslav Kysela <perex@suse.cz> and
Takashi Iwai <tiwai@suse.de>

Thanks.

Re: Regressions w.r.t. suspend behaviour in recent kernel versions

[Felix Homann]

Andrew Morton wrote:
>> On Fri, 24 Aug 2007 14:42:55 +0200 Felix Homann <fexpop@onlinehome.de> wrote:
> 
> Nearly two weeks, zero replies.

Thanks for caring :-)

> 
>> Aug  9 00:22:13 jawaka kernel: EXT3-fs: mounted filesystem with ordered
>> data mode.
>> Aug  9 00:22:13 jawaka kernel: WARNING: at kernel/irq/resend.c:70
>> check_irq_resend()
> 
> I expect that got fixed in later kernels.

Yes, I've just tried 2.6.23-rc5-git1 and the warning has gone!


>> Without the nolapic option the kernel will panic when trying to suspend 
>> to disk.
> 
> A *large* number of people need noapic or nolapic to get Linux to work.

Even better, on 2.6.23-rc5-git1 I don't need nolapic anymore!


>> Here are the last lines of the kernel output:
>>
>> EIP: [<c01127fd> lapic_nmi_suspend+0x1d/0x30 ss:ESP 0068:c1ae3ec8
>> Kernel panic - not syncing: Attempted to kill init!
> 
> Are you able to provide us with more information about this bug? 

If you're still interested in more more information now that the bug has 
apparently been solved "en passant" I can take a photograph tomorrow. 
Please, let me know.

>> With more recent kernels the system will hang with 
>> "Suspending console(s)".
> 
> My Vaio reliably hangs at the same place with 2.6.23-rc4.  I'll bisect that
> next week sometime.  Hopefully the result of that effort will fix your bug.
>  Please test Linus's tree regularly and don't let us release 2.6.23 until
> it is fixed.

Great!


>> 3. Even with the 2.6.18 kernel sound won't work after suspending to ram. 
>> I don't know when this started, but I know that this has not been an 
>> issue in the past.
> 
> Please provide full details in a separate bug report.  Send that report to
> myself, linux-kernel@vger.kernel.org, Jaroslav Kysela <perex@suse.cz> and
> Takashi Iwai <tiwai@suse.de>

I'll do that in the next couple of days.

Thanks again,

Felix

Re: Regressions w.r.t. suspend behaviour in recent kernel versions

[Andrew Morton]

> On Thu, 06 Sep 2007 00:51:50 +0200 Felix Homann <fexpop@onlinehome.de> wrote:
> Andrew Morton wrote:
> >> On Fri, 24 Aug 2007 14:42:55 +0200 Felix Homann <fexpop@onlinehome.de> wrote:
> > 
> > Nearly two weeks, zero replies.
> 
> Thanks for caring :-)
> 
> > 
> >> Aug  9 00:22:13 jawaka kernel: EXT3-fs: mounted filesystem with ordered
> >> data mode.
> >> Aug  9 00:22:13 jawaka kernel: WARNING: at kernel/irq/resend.c:70
> >> check_irq_resend()
> > 
> > I expect that got fixed in later kernels.
> 
> Yes, I've just tried 2.6.23-rc5-git1 and the warning has gone!
> 
> 
> >> Without the nolapic option the kernel will panic when trying to suspend 
> >> to disk.
> > 
> > A *large* number of people need noapic or nolapic to get Linux to work.
> 
> Even better, on 2.6.23-rc5-git1 I don't need nolapic anymore!
> 

damn, we break so much stuff that now we're breaking our old bugs too!

> 
> >> Here are the last lines of the kernel output:
> >>
> >> EIP: [<c01127fd> lapic_nmi_suspend+0x1d/0x30 ss:ESP 0068:c1ae3ec8
> >> Kernel panic - not syncing: Attempted to kill init!
> > 
> > Are you able to provide us with more information about this bug? 
> 
> If you're still interested in more more information now that the bug has 
> apparently been solved "en passant" I can take a photograph tomorrow. 
> Please, let me know.

No thanks, let's just move on..

> >> With more recent kernels the system will hang with 
> >> "Suspending console(s)".
> > 
> > My Vaio reliably hangs at the same place with 2.6.23-rc4.  I'll bisect that
> > next week sometime.  Hopefully the result of that effort will fix your bug.
> >  Please test Linus's tree regularly and don't let us release 2.6.23 until
> > it is fixed.
> 
> Great!
> 
> 
> >> 3. Even with the 2.6.18 kernel sound won't work after suspending to ram. 
> >> I don't know when this started, but I know that this has not been an 
> >> issue in the past.
> > 
> > Please provide full details in a separate bug report.  Send that report to
> > myself, linux-kernel@vger.kernel.org, Jaroslav Kysela <perex@suse.cz> and
> > Takashi Iwai <tiwai@suse.de>
> 
> I'll do that in the next couple of days.
> 

Thanks.