Re: [sparc64] mkfs.btrfs bus error / align issue?

[David Sterba <dsterba@suse.cz>]

On Thu, Jul 28, 2016 at 11:34:58PM +0300, Anatoly Pugachev wrote:
> well, I think mkfs.btrfs is fixed, since I just tested it with :

Good news, thanks.

> Not sure what we need to do with sparc64 btrfs module TPC messages.
> Probably fill kernel bugzilla report?

Yes please.

> [1] http://u163.east.ru/btrfs/xfstests-btrfs-06x-results.tar.gz
> [2] http://u163.east.ru/btrfs/kernel-4.7.0+-logs-xfstests-06x.txt.gz

quick stats of the TPC messages:

     23 __btrfs_map_block+0x36c/0x1180
      9 __remove_rbio_from_cache+0x38/0x140
      6 lock_stripe_add+0xb0/0x360
      4 __btrfs_map_block+0x3d4/0x1180
      3 __btrfs_map_block+0xca0/0x1180

running in 'gdb btrfs.ko' for each of the addresses should tell us what are the
locations:

gdb> l *(__btrfs_map_block+0x36c)
...

Thanks.