On Monday 19 March 2007 22:43:20 you wrote: > Hi, > > On Monday, 19 March 2007 13:50, Tobias Doerffel wrote: > > Hi, > > > > Suspend to RAM used to work fine on my computer (Intel Core Duo, 1 GB > > RAM, Intel 82801G (ICH7-chipset) mainboard, NVIDIA-gfx-card, > > tg3-ethernet) up to 2.6.20.3. But no matter which rc of 2.6.21 I use, > > suspend to RAM doesn't work anymore. Up to rc3 even suspending stopped at > > "suspending console" which appearently seems to be fixed in rc4. I tried > > rc4-git4 with minimal config (no dyndicks, no HRT, no MSI, no sound, no > > bluetooth, no PCMCIA, no WLAN, no USB, no cpufreq) but still I can't > > resume properly. Caps works and I can login through SSH. Back to a more > > complete config (sound, MMC, WLAN, PCMCIA - still no dynticks or HRT - > > see attachment "config") I get exactly the same behaviour. > > > > When logged in through SSH after resume I saved output of dmesg (which > > includes full power management debug messages), see > > attachement "dmesg-resume". The system basically seems to be back but lot > > of things do not work such as loading/unloading e.g. my WLAN-driver > > (ipw3945), running "top" or "dstat" etc. "uptime" always returns 0 min, > > even with power management debug disabled. > > > > Kernel: > > Linux version 2.6.21-rc4 (gcc version 4.1.2 20061115 (prerelease) (Debian > > 4.1.1-21)) #23 SMP PREEMPT Mon Mar 19 12:27:56 CET 2007 I made some further investigations on this issue. A complete bisect between 2.6.20 and 2.6.21-rc4-git4 stops at a stage (a4bbb810dedaecf74d54b16b6dd3c33e95e1024c) where I'm not able to compile the kernel anymore because of compiling-errors in arch/i386/kernel/setup.c (ACPI-related compiling errors). Stepping some revisions back until it compiled again resume didn't work either.
So I started all over again with bisect only on arch/i386 and ended up at
ceb6c46839021d5c7c338d48deac616944660124 as the bad commit. But this file
seems to be some kind of finalization of a series of patches ("ACPICA: Remove
duplicate table manager") so I guess it's hard to debug this thing...
> Can you please do
>
> # echo test > /sys/power/disk
> # echo disk > /sys/power/state
>
> (the system should freeze tasks, suspend devices, disable nonboot CPUs,
> wait for 5 seconds, enable nonboot CPUs, resume devices, thaw tasks and
> return to your command prompt) and see if you can reproduce the problem?
Same problem here. Works fine in 2.6.20 as well as before
ceb6c46839021d5c7c338d48deac616944660124. Doesn't work on recent
2.6.21-rc4-git4.
Any more information I can give?
Tobias
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