Ubuntu
acpi package

686 Kernel fails with ACPI enabled

Bug #54949 reported by mazelado
8
Affects Status Importance Assigned to Milestone
acpi (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

686 kernel fails to boot with ACPI enabled (default). When "acpi=off" is added to Grub, kernel boots normally (aside from no ACPI functions). 386 kernel works fine with or without ACPI. When "quiet" option is removed from Grub, last line of text displayed is "ACPI: Subsystem revision 20051216". As soon as that line is displayed the system reboots. This bug has existed for the past few kernel releases, though I'm not certain of which. My system is a Dell XPS, 3 GHz Pentium 4. See Ubuntu Forums post: http://www.ubuntuforums.org/showthread.php?t=203724

Revision history for this message
mazelado (azdaleo) wrote :

Relevant ACPI information from syslog.

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Scott Henson (scotth) wrote :

Can you please attach the output of lspci? Thank you.

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mazelado (azdaleo) wrote :

Output from lspci.

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Piers Titus van der Torren (ptt) wrote :

On my laptop Edgy (knot 3) only boots with the option acpi=off, it's the same bug as in Dapper with a 686 kernel. A 386 kernel works perfect, including acpi (fans, temperature, battery, etc.).

With noapic nolapic or with no options the kernel just stops after saying:

...
[17179570.332000] Freeing initrd memory: 7355k freed
[17179570.332000] ACPI: Looking DSDT ... not found!
[17179570.336000] ACPI: setting ELCR to 0800 (from 0020)
[17179570.356000] CPU0: Intel(R) Pentium(R) 4 CPU 2.60GHz stepping 07

my system is a Medion MD 6200 https://wiki.ubuntu.com/LaptopTestingTeam/MedionMD6200

Revision history for this message
Simon Law (sfllaw) wrote :

In Edgy, we no longer have a specific 686 kernel. If the bug reappears, please respond to this report.

Thanks.

Changed in acpi:
status: Unconfirmed → Rejected
Revision history for this message
Piers Titus van der Torren (ptt) wrote :

For me, it's edgy's linux-general kernel that's giving a crash, but I had the bug too with the dapper 686 kernel since some version.

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