Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [Bug #13306] hibernate slow on _second_ run | Date | Mon, 8 Jun 2009 22:54:29 +0200 |
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On Thursday 04 June 2009, Johannes Berg wrote: > Alright, I have managed to trace this. > > http://johannes.sipsolutions.net/files/hibernate-delay-dmesg.txt > > has the dmesg, you can clearly see the delay: > [50265.143330] ACPI: Waking up from system sleep state S4 > [50265.679141] HDA Intel 0000:00:08.0: restoring config space at offset 0x1 (was 0xb00006, writing 0xb00002) > [50265.689525] forcedeth 0000:00:0a.0: restoring config space at offset 0x1 (was 0xb00003, writing 0xb00007) > [50265.699775] ahci 0000:00:0b.0: restoring config space at offset 0x1 (was 0xb00403, writing 0xb00407) > [50286.294910] pci 0000:00:03.2: PME# disabled
Quite frankly, it looks like resume_device_irqs() itself causes the delay to happen.
The next step would be to put a couple of printk()s in there and see which part of it triggers the delay.
Best, Rafael
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