On 02/02/2010 12:44 AM, Marcel Holtmann wrote: > Hi David, > >>>> This message has been generated automatically as a part of a report >>>> of regressions introduced between 2.6.31 and 2.6.32. >>>> >>>> The following bug entry is on the current list of known regressions >>>> introduced between 2.6.31 and 2.6.32. Please verify if it still should >>>> be listed and let me know (either way). >>>> >>>> >>>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15127 >>>> Subject : Bluetooth: sleeping function called from invalid context >>>> Submitter : David John <davidjon@xxxxxxxxxxx> >>>> Date : 2010-01-12 9:19 (20 days old) >>>> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9e726b17422bade75fba94e625cd35fd1353e682 >>>> References : http://marc.info/?l=linux-kernel&m=126328727021949&w=4 >>> >>> you have an outdated email from Luiz and I change it to the right one >>> now. >>> >>> I looked with him at the patch and I think this will fix it: >>> >>> diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c >>> index fc5ee32..2b50637 100644 >>> --- a/net/bluetooth/rfcomm/core.c >>> +++ b/net/bluetooth/rfcomm/core.c >>> @@ -252,7 +252,6 @@ static void rfcomm_session_timeout(unsigned long >>> arg) >>> BT_DBG("session %p state %ld", s, s->state); >>> >>> set_bit(RFCOMM_TIMED_OUT, &s->flags); >>> - rfcomm_session_put(s); >>> rfcomm_schedule(RFCOMM_SCHED_TIMEO); >>> } >>> >>> @@ -1920,6 +1919,7 @@ static inline void rfcomm_process_sessions(void) >>> if (test_and_clear_bit(RFCOMM_TIMED_OUT, &s->flags)) { >>> s->state = BT_DISCONN; >>> rfcomm_send_disc(s, 0); >>> + rfcomm_session_put(s); >>> continue; >>> } >>> >>> We need some extra testing on this with the actual hardware we did the >>> patch for. So this will take at least a few days before we get our hands >>> on it. >> >> FWIW, your patch fixes the issue. > > nice. So I can add a tested-by line to the final patch? Sure, Tested-by: David John <davidjon@xxxxxxxxxxx> > > Just our of curiosity, which hardware did you test this with. I have an inbuilt (laptop) USB Dell Wireless 365 Bluetooth Module (413c:8160). I can send more info about the device if you want. > We only know about one headset that should cause this issue. That's weird. I assumed it would happen for any device, since rfcomm_session_add is called from multiple places and it adds rfcomm_session_timeout on a timer which will cause the trace if the timer fires. I could be wrong though. Regards, David. > > Regards > > Marcel > > > -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
