Latest working kernel version: 2.6.23 Earliest failing kernel version: 2.6.24 Distribution: Arch current Hardware Environment: Sony Vaio VGN C2Z Software Environment: Problem Description: Since kernel 2.6.24 system locks on boot if ac adapter is plugged in. If no ac adapter is present system boots as usual. Using a kernel below 2.6.24, or booting with acpi=off fixes the problem. Uncompressing Linux... Ok, booting the kernel. ACPI: EC: acpi_ec_wait timeout, status = 0, expect_event = 1 ACPI: EC: read timeout, command = 128 Steps to reproduce: Boot a Sony Vaio VGN-C2Z with a kernel above 2.6.23 with plugged in ac adapter.
Please attach the acpidump output. And dmesg output in 2.6.23.
Created attachment 15224 [details] acpidump output
Created attachment 15225 [details] dmesg output 2.6.23.17
I have the same problem with this kernel, however I can boot when I do not use the options quiet and splash
Created attachment 15390 [details] dmseg dump for kernel 2.6.24-24
Created attachment 15391 [details] acpidump of gerhard
gerhard, could you try generic kernel from www.kernel.org, not the redhat one?
Removing the quiet option from 2.6.24 works for me too. I also compiled kernel 2.6.25-rc6 and everything works fine here even with quiet. Seems the problem was related to EC GPE. Booting the kernel. ACPI: EC: GPE storm detected, disabling EC GPE :: Loading Initramfs
Created attachment 15399 [details] dmesg output 2.6.24.3 without quiet
Created attachment 15400 [details] dmesg output 2.6.25-rc6
Sebastian, Please uncomment '#define DEBUG' at the beginning of /drivers/acpi/ec.c and send the dmesg here. You will not be able to get full dmesg, so part of it will do.
No problem, i only need to know which kernel 2.6.23 24 or 25.
25, please :)
Created attachment 15409 [details] dmesg output 2.6.25-rc6 with ec.c DEBUG
Thanks, irq storm detection works.
The laptop can work after the irq storm patch is applied. And the commit is included in the current git tree. > commit fa95ba04e6ba11d71e1b87becd054b38faf546c8 > Author: Alexey Starikovskiy <astarikovskiy@suse.de> > Date: Fri Mar 21 19:36:02 2008 +0300 > ACPI: EC: Detect irq storm The bug can be closed.