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


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


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


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

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.

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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. 


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

Thanks again,

Felix

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Thanks.
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