Hi, I have been trying to get some sysrq output, but I am only getting hard hangs right now. So no reaction to sysrq-w.
Here is some sysrq-w output from around 15 minutes before the crash: https://www.dropbox.com/s/386ifyoxh8eppia/sysrqw_2012-11-1.log I don't know if this will be helpful. Tobias On Thu, 01 Nov 2012 12:57:00 +0100 Jan Schmidt <list.bt...@jan-o-sch.net> wrote: > On Thu, November 01, 2012 at 03:39 (+0100), Liu Bo wrote: > > On 11/01/2012 04:00 AM, Franke wrote: > >> Hi, > >> > >> since yesterday I have run a balance while asleep/at work. Now I > >> experimented a bit, and the situation has changed. > >> > >> I am now getting hard hangs ( system is gone without even writing > >> anything to syslog ), some time ( minutes to an hour ) into > >> running a scrub. > >> > >> Those hangs happen with 3.6.2 , 3.6.4 and Jan's unstable version. > >> It hasn't hung yet without running a scrub. > >> > >> I have no idea if this is part of the same problem or something > >> else. Do you have any idea either way? > >> > > > > Well, thanks for testing. > > > > We may need your sysrq-w output(maybe screen output) to locate > > where we hard hangs. > > > > Besides, I recommend you pick Jan's patches out, and apply them on > > the latest btrfs upstream and run another round to see if it get > > better, since there might be some fixes for the very hang already > > in the upstream. > > > > Right now the latest btrfs upstream's top commit is > > > > commit f46dbe3dee853f8a860f889cb2b7ff4c624f2a7a > > Author: Chris Mason <chris.ma...@fusionio.com> > > Date: Tue Oct 9 11:17:20 2012 -0400 > > > > btrfs: init ref_index to zero in add_inode_ref > > > > Signed-off-by: Chris Mason <chris.ma...@fusionio.com> > > This is an old top commit. The current cmason/master state is > > commit c37b2b6269ee4637fb7cdb5da0d1e47215d57ce2 > Author: Josef Bacik <jba...@fusionio.com> > Date: Mon Oct 22 15:51:44 2012 -0400 > > and includes my recent fixes. I don't really expect them to prevent > getting stuck anywhere. sysrq+w output would be really helpful. I'm > trying to reproduce the problems in the meantime. > > -Jan -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
