Hi there!
I am trying to get s2ram working on a Dell Latitude D620.
Until so far, no luck.
I. The target platform.
First let me tell you that it will be a little tricky to handle
this machine with s2ram's whitelist, because Dell is putting
completely different hardware parts in different models, but
still identifying them the same.
s2ram -i identifies this machine as:
-------------------------
sys_vendor = "Dell Inc."
sys_product = "Latitude D620 "
sys_version = ""
bios_version = "A04"
-------------------------
The only problem is, this gives no clue about what
variation of the hardware components is used.
D620 notebooks are sold with the following parts:
Video:
256MB NVIDIA Quadro NVS TurboCache
or
Intel Graphics Media Accelerator 950
WiFi:
Intel 3945 WiFi 802.11a/g
or
Dell Wireless 1390 802.11g
or
Dell Wireless 1490 802.11a/g
So in order to identify the system,
s2ram will have to take a look at lspci, too.
II. My system.
My notebook has intel 945 video, broadcom BCM5752 (=tg3) ethernet
and "dell wireless 1390" (=broadcom 4311, hopefully going to be
supported by bcm43xx soon) wifi.
The output of "lspci" looks like this:
-----------------------------------------
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and
945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile
945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML
Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 2 (rev 01)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 3 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family)
Serial ATA Storage Controller IDE (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller
(rev 01)
03:01.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0
CardBus/SmartCardBus Controller (rev 40)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752
Gigabit Ethernet PCI Express (rev 02)
0c:00.0 Network controller: Broadcom Corporation Dell Wireless 1390 WLAN
Mini-PCI Card (rev 01)
-----------------------------------------
III. Test results
I am running a debian etch/sid hybrid on it.
Kernel is custom-compiled from debian 2.6.17-9 kernel sources.
(Which is synced with stable release 2.6.17.13)
USB, networking and audio drivers are all compiled as modules.
After some failures, I have set up a minimal configuration.
No vesafb. No apic. init=/bin/bash.
The only loaded module is zlib_inflate.
The results of the various parameters are summarized in
the following chart:
command result
---------------------------------------
s2ram -f goes down, kernel crash in acpi_pm_enter on resume
s2ram -f -a 1 goes down, reboot on resume
s2ram -f -a 2 goes down, reboot on resume
s2ram -f -a 3 goes down, reboot on resume
s2ram -f -p -s goes down, kernel crash in acpi_pm_enter on resume
s2ram -f -s goes down, kernel crash in acpi_pm_enter on resume
s2ram -f -p goes down, kernel crash in acpi_pm_enter on resume
s2ram -f -a 1 -s goes down, reboot on resume
------------------------------------------
I have seen the thread starting at
http://www.mail-archive.com/suspend-devel@lists.sourceforge.net/msg00428.html
, but my machine behaves differently. (To be more specific, it crashes,
when
it should resume.)
Here is what I captured form the kernel crash after s2ram -f -p -s:
--------------------------------------------------------------------------------
SMP
Modules linked in: zlib_inflate
CPU: 0
EIP: 0060:[<c0233683>] Not tainted VLI
EFLAGS: 00003246 (2.6.16 #1)
EIP is at acpi_pm_enter+0x71/0x93
eax: 00000033 ebx: 00000000 ecx: 00000000 edx: 00003092
esi: 00000003 edi: 00000003 ebp: 00003246 esp: f7ec7efc
ds: 0068 es: 008b ss: 0068
Process s2ram (pid: 2560, threadinfo=f7ec6000 task=dffbc570)
Stack: 00000000 00003282 00000003 00000003 c01413cf 00000003 00000003
00000000
c0393db3 c01414fd c0156fed c21b2000 c21b2003 c014161d 00000003
c03ea61c
c0141560 c03ea5b4 c21b2000 00000003 c019ccc9 c20fe514 c03ede54
c21b1f80
Call Trace:
<c01413cf> suspend_enter+0x4f/0x60 <c01414fd> enter_state+x11d/0x180
<c0156fed> vma_merge+0xdd/0x1c0 <c014161d> state_store+0xbd/0xd0
<c0141560> state_store+0x0/0x40 <c019ccc9> subsys_attr_ctore+0x29/0x40
<c019cfe2> sysfs_write_file+0x92/0xf0 <c0166226> vfs_write+0xa6/0x160
<c019cf50> sysfs_write_file+0x0/0xf0 <c016696> sysfs_write+0x41/0x70
<c0102fcf> sysenter_past_esp+0x54/0x75
Code: ff eb 45 eb 12 e8 9a 4c 1b 00 eb 1b 31 db 83 3d 28 22 3f c0 02 75
12 57 e8
db 6c ff ff 89 c3 58 eb 07 e8 57 fc ff ff 31 db 55 9d <68> 82 d6 3c c0
e8 f3 27
ef ff 4e 5f 7e 05 e8 5a db ed ff 83 db
EIP: [<c0233683>] acpi_pm_enter+0x71/0x93 SS:ESP 0068:f7ec7efc
-------------------------------------------------------------------------------------
I also tried to run s2ram -f -p -s with SMP disabled, but it did not
change the results.
Where do I go from here?
Kristof Csillag
--
Csillag Kristof <[EMAIL PROTECTED]>
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