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

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Date:	Mon, 22 Jun 2009 15:49:43 +0200
From:	Andi Kleen <ak@...ux.intel.com>
To:	Maciej Rutecki <maciej.rutecki@...il.com>
CC:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, "Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: 2.6.30-git(16 and 17) system hangs after resume from suspend
 to 	disk, mce related?


> [   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
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