On 12.08.2010 10:04, Yan, Zheng wrote: > On Thu, Aug 12, 2010 at 3:14 PM, Andreas Philipp > <philipp.andr...@gmail.com> wrote: > >> Hi, >> >> I am using a btrfs filesystem created with raid0 for data and metadata >> for (temporary) storage of tv recordings from my vdr. The filesystem was >> created under kernel version 2.6.34. An initial btrfs balance command >> succeeded. Since I upgraded to 2.6.35-rcX and 2.6.35 btrfs balance no >> longer finishes but puts the machine in some unresponsive state. >> Unfortunately, I do not see any kernel oops or other debug information >> because even the display freezes. The last thing that happens are that >> those two lines are written to /var/log/messages: >> Aug 11 21:42:23 thor kernel: btrfs: found 62911 extents >> Aug 11 21:42:24 thor kernel: btrfs: relocating block group 1723913469952 >> flags 9 >> After that the machine becomes immediately unresponsive. >> >> As I did not see anything that might be related to my problem in the >> changelog for 2.6.35.1 I did not try again with this version. >> >> > Do you have more than one machines? would you please setup netconsole > to see what happen. > I have reproduced the error on v2.6.35.1 and recorded all kernel output with netconsole. The interesting point is that this time the machine did not crash but the btrfs balance segfaulted at exact the same position where the previous crashes had happened.
Yours, Andreas
netconsole.log.gz
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