I tried with both stable 2.6.28.9 and 2.6.29.1, and yes, issue is reproducible. On 28.9, if move AP (disable_nonboot_cpu) before suspend_console followed by a msleep(500), and keep it seem to work OK. But I don't like it. On 29.1, looks like order is changed again, that solution does not work. Either-way, its stopping somewhere in __cpu_down, I need to track it down. -Kaushik -----Original Message----- From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-owner@xxxxxxxxxxxxxxx] On Behalf Of Rafael J. Wysocki Sent: Sunday, April 26, 2009 4:12 PM To: Kaushik Barde Cc: linux-acpi@xxxxxxxxxxxxxxx Subject: Re: s2ram on Lenovo X300 is broken On Sunday 26 April 2009, Kaushik Barde wrote: > I am using stable-2.6.29.1 on Lenovo X300. > > echo mem > /sys/power/state works if I disable AP core using echo 0 > /sys/devices/system/cpu/cpu1/online. > > With SMP, first s3 cycle goes through, subsequent suspend does not work. > > Is this a known issue with CPU_HOTPLUG or suspend re-ordering code? Similar symptoms have been reported, but the previous reporter did not connect them with the CPU hotplugging. The issue isn't actually known and suspend-resume works on many SMP systems. Is the problem reproducible with the current mainline kernel? Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
