Re: problems with suspend-to-disk (ACPI), 2.6.1-rc2

[Mauro Andreolini]

Daniele Venzano wrote:

> On Wed, Jan 14, 2004 at 06:59:36PM +0100, m.andreolini@xxxxxxxxxx wrote:
>  
>
> > I can't even 'tcpdump eth0' since the eth0 interface is not brought up correctly
> > on resume:
> > ifconfig yields only the loopback entry.
> >    
>
> If the card isn't even brought up it means that you're lacking power
> management completely for that device.
>
> I'm using pmdisk, perhaps swsusp is using different calls to device drivers,
> and no one has ever written them for sis900.
> I searched documentation on swsusp interface, but found nothing,
> as a matter of fact I assumed that what's in Documentation/power would
> apply to both pmdisk and swsusp, since they're similar implementations.
>
> Check that the patch at:
> http://teg.homeunix.org/kernel_patches.html is in your tree.
>
> If you have time try to match my configuration (2.6.1, pmdisk and sis900
> compiled in) and see if that way it works.
>
> Bye
>
>  
Hi Daniele,

I've ricompiled 2.6.1 (sis900.diff was already there) and used the 
pmdisk implementation. The bash still crashes
during resume, but the network card is working. The dmesg output is as 
follows:

<snip>

Stopping tasks: =====================|
Freeing memory: ....................|
hdc: start_power_step(step: 0)
hdc: completing PM request, suspend
hda: start_power_step(step: 0)
hda: start_power_step(step: 1)
hda: complete_power_step(step: 1, stat: 50, err: 0)
hda: completing PM request, suspend
PM: Attempting to suspend to disk.
PM: snapshotting memory.
PM: Image restored successfully.
bad: scheduling while atomic!
Call Trace:
[<c0119d36>] schedule+0x586/0x590
[<c0124f7c>] __mod_timer+0xfc/0x170
[<c0125ad3>] schedule_timeout+0x63/0xc0
[<c0125a60>] process_timeout+0x0/0x10
[<c01da6ab>] pci_set_power_state+0xeb/0x190
[<c02338f3>] sis900_resume+0x63/0x130
[<c01dcc06>] pci_device_resume+0x26/0x30
[<c021ecc9>] resume_device+0x29/0x30
[<c021ed04>] dpm_resume+0x34/0x60
[<c021ed49>] device_resume+0x19/0x30
[<c0137228>] finish+0x8/0x40
[<c0138195>] pmdisk_free+0x5/0x10
[<c013738e>] pm_suspend_disk+0x7e/0xc0
[<c0135025>] enter_state+0xa5/0xb0
[<c013511c>] state_store+0x6c/0x76
[<c01889aa>] subsys_attr_store+0x3a/0x40
[<c0188c7b>] flush_write_buffer+0x3b/0x50
[<c0188cf0>] sysfs_write_file+0x60/0x70
[<c015477e>] vfs_write+0xbe/0x130
[<c01548a2>] sys_write+0x42/0x70
[<c010949b>] syscall_call+0x7/0xb

hda: Wakeup request inited, waiting for !BSY...
hda: start_power_step(step: 1000)
blk: queue ebd6ca00, I/O limit 4095Mb (mask 0xffffffff)
hda: completing PM request, resume
hdc: Wakeup request inited, waiting for !BSY...
hdc: start_power_step(step: 1000)
hdc: completing PM request, resume
Restarting tasks...<3>bad: scheduling while atomic!
Call Trace:
[<c0119d36>] schedule+0x586/0x590
[<c0118efe>] try_to_wake_up+0x9e/0x160
[<c0118fde>] wake_up_process+0x1e/0x20
[<c0135438>] thaw_processes+0xb8/0x100
[<c01f63f9>] acpi_pm_finish+0x14/0x38
[<c0137236>] finish+0x16/0x40
[<c013738e>] pm_suspend_disk+0x7e/0xc0
[<c0135025>] enter_state+0xa5/0xb0
[<c013511c>] state_store+0x6c/0x76
[<c01889aa>] subsys_attr_store+0x3a/0x40
[<c0188c7b>] flush_write_buffer+0x3b/0x50
[<c0188cf0>] sysfs_write_file+0x60/0x70
[<c015477e>] vfs_write+0xbe/0x130
[<c01548a2>] sys_write+0x42/0x70
[<c010949b>] syscall_call+0x7/0xb

done
bad: scheduling while atomic!
Call Trace:
[<c0119d36>] schedule+0x586/0x590
[<c01548a2>] sys_write+0x42/0x70
[<c01094c2>] work_resched+0x5/0x16

bad: scheduling while atomic!
Call Trace:
[<c0119d36>] schedule+0x586/0x590
[<c01187d6>] fixup_exception+0x16/0x40
[<c0117b8e>] __is_prefetch+0x6e/0x220
[<c0117e50>] do_page_fault+0x110/0x512
[<c011dd3d>] printk+0x11d/0x180
[<c011abe7>] sys_sched_yield+0x87/0xd0
[<c0160cb8>] coredump_wait+0x38/0xa0
[<c0160e0b>] do_coredump+0xeb/0x1ec
[<c0118ffa>] wake_up_state+0x1a/0x20
[<c0126e24>] specific_send_sig_info+0xc4/0x130
[<c0126838>] __dequeue_signal+0xe8/0x190
[<c0126915>] dequeue_signal+0x35/0xa0
[<c0128dea>] get_signal_to_deliver+0x20a/0x380
[<c0109272>] do_signal+0xe2/0x120
[<c0118d50>] recalc_task_prio+0x90/0x1a0
[<c0119ae4>] schedule+0x334/0x590
[<c0117d40>] do_page_fault+0x0/0x512
[<c0109309>] do_notify_resume+0x59/0x5c
[<c01094e6>] work_notifysig+0x13/0x15

note: bash[3588] exited with preempt_count 1
eth0: Abnormal interrupt,status 0x03008001.
eth0: Media Link On 100mbps full-duplex

<end of snip>

Thanks for the help.

Bye
Mauro Andreolini

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