Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: Linux 3.7-rc3 | Date | Fri, 02 Nov 2012 22:40:25 +0100 |
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On Friday, November 02, 2012 10:07:10 PM Daniel Vetter wrote: > On Fri, Nov 2, 2012 at 9:25 PM, Linus Torvalds > <torvalds@linux-foundation.org> wrote: > > On Mon, Oct 29, 2012 at 5:10 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote: > >> > >> Unfortunately, s2disk is broken with this one and previous -rc. In the > >> majority of cases it just hangs the machine during hibernation, although > >> sometimes it returns to user space reporting freezing problems, suspicions > >> RCU usage and similar stuff, pretty much without any useful debug information. > > > > Ugh. I was hoping that we'd get more reports on this, right now > > there's not enough information to even make a guess about what's up. > > > > I also note that no actual i915 people were cc'd, despite your > > graphics driver suspect. Adding Daniel and Dave (one of the millions) > > to the cc since they probably do have lkml but probably don't react > > unless something gets pointed out. > > > > Daniel/Dave, do you have any reports of hibernation failing (or VT > > switching problems) with i915 after 3.6? > > Not that I've heard of. We did though rewrite the entire modeset > sequence driving code in i915 for 3.7, removing massive amounts of > hacks and stupid "let's disable/enable things harder" code simply > because the old code couldn't keep track of the hw state well enough. > So I wouldn't be surprised at all if that unearthed a hidden bug > somewhere, but we've also added ridiculous amounts of self-checks. And > thus far they caught all issues due to that rework (and some ancient > bugs on top) when either the i915 driver or the bios did something > nefarious ... > > I've rechecked the git log and otherwise there's nothing else which > pops up that would fit VT-switching/hibernate going bad but the > modeset rework.
Can you point me to a range of commits worth checking?
Rafael
-- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.
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