On Wednesday 07 October 2009 16:33:09 Chris Mason escribió:
> Ok, in this case you ended up with raid0 on the data. If you:
>
> mkfs.btrfs -d raid1 /dev/loop0 /dev/loop1 you'll get data raid1.
I got a BUG...but it may be a different bug. Unlike the last time,
I didn't even need to zero one of the "disks", the second I
rebalanced it oopsed:
[ 705.060358] btrfs: relocating block group 4194304 flags 4
[ 1006.106133] btrfs: relocating block group 5704777728 flags 18
[ 1006.336521] btrfs: found 1 extents
[ 1006.469967] btrfs: relocating block group 5384896512 flags 20
[ 1006.471043] btrfs allocation failed flags 20, wanted 4096
[ 1006.471048] space_info has 317378560 free, is full
[ 1006.471052] space_info total=319881216, pinned=16384, delalloc=0, may_use=0,
used=2355200, root=2875392, super=131072, reserved=0
[ 1006.471058] block group 5384896512 has 319881216 bytes, 2355200 used 16384
pinned 0 reserved
[ 1006.471063] entry offset 5384896512, bytes 483328, bitmap yes
[ 1006.471065] block group has cluster?: yes
[ 1006.471067] 1 blocks of free space at or bigger than bytes is
[ 1006.471092] ------------[ cut here ]------------
[ 1006.471094] kernel BUG at fs/btrfs/transaction.c:1001!
[ 1006.471098] invalid opcode: 0000 [#1] PREEMPT SMP
[ 1006.471103] last sysfs file: /sys/devices/virtual/block/loop0/range
[ 1006.471106] CPU 0
[ 1006.471109] Modules linked in: ppp_deflate bsd_comp ppp_async crc_ccitt
btrfs zlib_deflate crc32c libcrc32c loop ppp_generic slhc kvm_intel kvm i915
snd_ca0106 snd_rawmidi drm_kms_helper snd_ac97_codec ac97_bus cfbcopyarea
snd_pcm_oss video snd_mixer_oss backlight snd_pcm snd_timer cfbimgblt processor
wacom intel_agp cfbfillrect button snd soundcore snd_page_alloc usbhid fan fuse
ehci_hcd uhci_hcd thermal thermal_sys atl1 mii usbcore
[ 1006.471159] Pid: 8207, comm: btrfs-vol Not tainted 2.6.32-rc3 #1 System
Product Name
[ 1006.471162] RIP: 0010:[<ffffffffa0257665>] [<ffffffffa0257665>]
btrfs_commit_transaction+0x6c5/0x6f0 [btrfs]
[ 1006.471183] RSP: 0018:ffff8800bc285a78 EFLAGS: 00010286
[ 1006.471186] RAX: 00000000ffffffe4 RBX: ffff8800bdef5800 RCX:
0000000000000016
[ 1006.471189] RDX: 0000000000000000 RSI: ffff8800bc2859f8 RDI:
ffff8800a86d8060
[ 1006.471192] RBP: ffff8800bc285b18 R08: 0000000000000000 R09:
0000000000000000
[ 1006.471195] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff8800a181f5c0
[ 1006.471199] R13: ffff8800a1eb1ae0 R14: ffff8800bc285ab8 R15: ffff8800a1eb1b50
[ 1006.471202] FS: 00007f7c5427f730(0000) GS:ffff880001800000(0000)
knlGS:0000000000000000
[ 1006.471206] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 1006.471209] CR2: 0000000002812500 CR3: 00000000a2f88000 CR4: 00000000000026f0
[ 1006.471212] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1006.471215] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 1006.471219] Process btrfs-vol (pid: 8207, threadinfo ffff8800bc284000, task
ffff88000b2bae00)
[ 1006.471221] Stack:
[ 1006.471223] ffff8800bc285ad8 0000000000000206 00000001bf15ad00
0000000001000010
[ 1006.471229] <0> ffff8800a181f5c0 0000000000000004 ffff8800a1eb1b80
ffff8800a1eb1ae0
[ 1006.471235] <0> 0000000000000000 ffff88000b2bae00 ffffffff8106eb30
ffff8800bc285ad0
[ 1006.471242] Call Trace:
[ 1006.471250] [<ffffffff8106eb30>] ? autoremove_wake_function+0x0/0x40
[ 1006.471264] [<ffffffffa0256d0e>] ? start_transaction+0x11e/0x170 [btrfs]
[ 1006.471285] [<ffffffffa029630c>] relocate_block_group+0xec/0x4b0 [btrfs]
[ 1006.471291] [<ffffffff813cf4e9>] ? sub_preempt_count+0x59/0x60
[ 1006.471301] [<ffffffffa025596b>] ? btrfs_clean_old_snapshots+0x8b/0x1c0
[btrfs]
[ 1006.471314] [<ffffffffa02714fb>] ? btrfs_wait_ordered_extents+0x1bb/0x1d0
[btrfs]
[ 1006.471325] [<ffffffffa0296a5a>] btrfs_relocate_block_group+0x15a/0x390
[btrfs]
[ 1006.471336] [<ffffffffa027cfab>] btrfs_relocate_chunk+0x8b/0x5e0 [btrfs]
[ 1006.471348] [<ffffffffa0272a0b>] ? map_extent_buffer+0xdb/0xe0 [btrfs]
[ 1006.471359] [<ffffffffa0271b13>] ? unmap_extent_buffer+0x13/0x40 [btrfs]
[ 1006.471372] [<ffffffffa0266c54>] ? btrfs_item_offset+0xe4/0xf0 [btrfs]
[ 1006.471383] [<ffffffffa027db3f>] btrfs_balance+0x1ef/0x270 [btrfs]
[ 1006.471387] [<ffffffff810cc0ef>] ? find_get_page+0x7f/0xf0
[ 1006.471398] [<ffffffffa0282e10>] btrfs_ioctl+0x510/0xa20 [btrfs]
[ 1006.471401] [<ffffffff810cc3e7>] ? unlock_page+0x27/0x30
[ 1006.471406] [<ffffffff810e8409>] ? __do_fault+0x449/0x540
[ 1006.471412] [<ffffffff8111bf62>] vfs_ioctl+0x22/0xa0
[ 1006.471415] [<ffffffff813cf4e9>] ? sub_preempt_count+0x59/0x60
[ 1006.471419] [<ffffffff8111c108>] do_vfs_ioctl+0x88/0x570
[ 1006.471424] [<ffffffff8120ecc9>] ? __up_read+0x99/0xc0
[ 1006.471428] [<ffffffff8107323e>] ? up_read+0xe/0x10
[ 1006.471432] [<ffffffff8111c63f>] sys_ioctl+0x4f/0x80
[ 1006.471438] [<ffffffff8100b5db>] system_call_fastpath+0x16/0x1b
[ 1006.471440] Code: 00 00 00 00 e9 c4 fe ff ff be ab 03 00 00 48 c7 c7 1a 84
29 a0 e8 ac 83 df e0 e9 e8 fa ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b
eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe be d7 03 00 00
[ 1006.471492] RIP [<ffffffffa0257665>] btrfs_commit_transaction+0x6c5/0x6f0
[btrfs]
[ 1006.471504] RSP <ffff8800bc285a78>
[ 1006.471507] ---[ end trace 14afea9f89710f14 ]---
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