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    SubjectRe: [Bug #13337] [post 2.6.29 regression] hang during suspend of b44/b43 modules
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    On Thu, 2009-07-09 at 22:03 +0200, Rafael J. Wysocki wrote:
    > On Thursday 09 July 2009, Jan Scholz wrote:
    > > Hi,
    > >
    > > I have just checked this on v2.6.31-rc1 and v2.6.31-rc2-214-g34f2547
    > > (I wanted to test this on v2.6.31-rc2 as well, but there I had other
    > > suspend-issues that are fixed in todays v2.6.31-rc2-214-g34f2547)
    > >
    > > For both v2.6.31-rc1 and v2.6.31-rc2-214-g34f2547 suspend to ram fails
    > > with the test procedure described below, but it works fine when I revert
    > > commit 5bb644a0fd25a5e083ecbfaa92a211db99aa6ef7
    > > "mac80211: cancel/restart all timers across suspend/resume"
    >
    > Thanks for the update.
    >
    > Johannes, do you have any idea what can go wrong here?

    Not really, no. __ieee80211_suspend isn't holding any locks that the
    cancel_work_sync() calls could require or so afaict...

    Jan, can you run with console_suspend=0 (or whatever it is now, Rafael
    will correct me if I'm wrong) that should work on your platform, and put
    a bunch of printk calls into __ieee80211_suspend in net/mac80211/pm.c to
    see where in there it's hanging?

    johannes
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