Re: 2.6.35 suspend regression (bisected)

From: Roberto Oppedisano
Date: Wed Jul 28 2010 - 03:39:54 EST

On 28/07/2010 00:37, Rafael J. Wysocki wrote:
On Tuesday, July 27, 2010, Roberto Oppedisano wrote:
On 27/07/2010 21:03, Rafael J. Wysocki wrote:
I did bisect again and I did get a different result:

c1518f12bab97a6d409a25aaccb02dc8895800f3 is the first bad commit

Trying to revert that commit gives:

$ git bisect reset
$ git revert c1518f12bab97a6d409a25aaccb02dc8895800f3
fatal: Commit c1518f12bab97a6d409a25aaccb02dc8895800f3 is a merge but no
-m option was given.

How am I supposed to proceed now ? (sorry I'm a git newbie)
The bisect turned up a merge, which means it probably didn't really converge
for you.

Do you use a camera driver?
Yes, this laptop has an integrated webcam.

Bus 001 Device 004: ID 04f2:b059 Chicony Electronics Co., Ltd

which i think is driven by uvcvideo.ko. I've tryed to rmmod uvcvideo,
videodev and

v4l1_compat but on current git suspend still hangs in the same way
(screen black,
backlight on, fans at full speed, no response to ping and... nothing in
the logs).
Please try the current mainline with acpi_sleep=nonvs in the command line.


acpi_sleep=nonvs console=tty0

(kubuntu defaults to quiet spash) I was able to complete 3 suspend/resume cycles before hitting an hang. After a power cycle I was able to suspend again, so it seems that, albeit racy, this cmdline has a positive effect.




alone I've never been able to suspend (only the combination of the two makes a difference).


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at