Re: 2.6.30-git(16 and 17) system hangs after resume from suspend to disk, mce related?

Andi Kleen
2009-06-22T13:49:52Z

> [ 68.287417] ata2.01: ACPI cmd ef/03:0c:00:00:00:b0 filtered out
> [ 68.290331] ata2.00: ACPI cmd ef/03:0c:00:00:00:a0 filtered out
> [ 68.302257] ata1.00: ACPI cmd ef/03:45:00:00:00:a0 filtered out
> [ 68.324357] ata1.00: configured for UDMA/133
> [ 69.656127] btusb 4-1:1.0: no reset_resume for driver btusb?
> [ 70.708015] usb 5-2: reset low speed USB device using uhci_hcd and address 3
>
> It seems, that resume isn't resume completely.

The USB reset messages are normally not serious

>
>
> Also I try 20 seconds and find this in netconsole:
> [ 532.576128] BUG: soft lockup - CPU#1 stuck for 61s! [ksensors:2670]
> [ 532.576128] Modules linked in: i915 drm i2c_algo_bit video
> backlight output ppdev lp rfcomm l2cap xt_tcpudp xt_limit snd[
> 532.576128] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> [ 532.576128] [<c01a266d>] sys_read+0x3d/0x70

Hmm strange lockup in the VFS, but in sensors context. Might or might not
be related.

Here's a debug patch for the poller: http://firstfloor.org/ak/mcp-debug
Can you apply that and try again and send me the output?

Thanks,

-Andi