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Tasklist

FS#10510 - kernel 2.6.25 won't boot with acpi

Attached to Project: Arch Linux
Opened by János Illés (ijanos) - Monday, 26 May 2008, 18:24 GMT
Last edited by Greg (dolby) - Sunday, 20 July 2008, 22:57 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture i686
Severity High
Priority Normal
Reported Version 2007.08-2
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

Boot process is freeze (simply stops, no kernel panic, no error message) with kernel 2.6.25.4 during the initramfs

The normal boot stops here:
hub 4-0:1.0 - USB Hub found
2 ports detected

The fallback initramfs stops at the udev hook:
Running loop udev
Loading udev...

After adding acpi=off to the kernel parameterlist, the machine will boot fine.

attached lshw's output and mkinitcpio.conf
   mkinitcpio.conf (2.5 KiB)
   lshw.txt (15.8 KiB)
This task depends upon

Closed by  Greg (dolby)
Sunday, 20 July 2008, 22:57 GMT
Reason for closing:  Not a bug
Comment by Glenn Matthys (RedShift) - Friday, 13 June 2008, 13:43 GMT
This is mostly likely an upstream bug. I see you are using a laptop, Acer TravelMate 6000. Have you tried a custom DSDT for your laptop?
Comment by János Illés (ijanos) - Friday, 13 June 2008, 14:21 GMT
Not even heard about DSDT until this point, so no not really. This machine runs linux since the fall of 2005, mostly ubuntu but a few live distro as well and arch since a few months. I _never_ had any kernel nor apci related problems. Thats why i think its something about udev in my initramfs.
Could this caused by the SLmodem winmodem hosted on the audio chip?
Comment by Glenn Matthys (RedShift) - Wednesday, 18 June 2008, 08:14 GMT
Can you try with newer kernel releases, 2.6.25.6 (is in core), 2.6.25.7 and 2.6.26-rc6? The latter ones you'll have to build yourself.
Comment by János Illés (ijanos) - Wednesday, 18 June 2008, 09:44 GMT
Sure. I will start poking around in few days, but first i have pass a few exams :)

ps: i've already tried 2.6.25.6 and its the same, boot process stalls somewhere in the udev hook
I can only restart the machine with a hardreset. Is there any good way to debug whats really happening? (eg: something step by step)
Comment by Glenn Matthys (RedShift) - Thursday, 19 June 2008, 09:48 GMT
Can you try blacklisting the ACPI modules? And keep track which ones you've disabled to figure out which one is hanging.
Comment by János Illés (ijanos) - Thursday, 19 June 2008, 13:48 GMT
I think the udev autoloads them, how can i found out which ones udev autoload?
Comment by János Illés (ijanos) - Thursday, 19 June 2008, 14:20 GMT
Okey, it is really seems like an upstream bug. I messed up by boot, so i booted into a systemrescuecd to chroot. The latest sysresccd with 2.6.25 wont boot on my machine, boot process stalls at loading sl811 sl811-hcd usb mass storage module.
Comment by János Illés (ijanos) - Thursday, 19 June 2008, 15:08 GMT
If i boot with acpi=off sl811-cd module is not loaded in the booted system. If i load it manually with modprobe, nothing happens.
Comment by János Illés (ijanos) - Thursday, 19 June 2008, 16:07 GMT
after changing udev hook to modload the machine boots up fine and acpi works well too.
Comment by János Illés (ijanos) - Thursday, 19 June 2008, 17:25 GMT
after changing udev hook to modload the machine boots up fine and acpi works well too.

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