On 2017年06月18日 05:24, Adam Borowski wrote:
On Sat, Jun 17, 2017 at 09:28:30PM +0800, Qu Wenruo wrote:
I for one get this a lot even in regular use. Somehow, it always has Comm:
dpkg, despite the vast majority of activity on the system obviously not
being dpkg.
linus/master without any extra patch is still the same?
And which commit?
I'm using 1439ccf73d9c07654fdd5b4969fd53c2feb8684d, at least it doesn't
cause any warning the related test case, and I tried several combination
with preallocated and written and hole, still no chance.
Current linus/master:
[ 39.726099] ------------[ cut here ]------------
[ 39.726109] WARNING: CPU: 5 PID: 3382 at fs/btrfs/extent_io.c:4484
extent_fiemap+0x651/0x710
[ 39.726110] Modules linked in: cp210x pl2303 usbserial nouveau video ttm
[ 39.726120] CPU: 5 PID: 3382 Comm: dpkg Not tainted
4.12.0-rc5-debug-00219-gadc311034c35 #1
[ 39.726122] Hardware name: System manufacturer System Product Name/M4A77T,
BIOS 2401 05/18/2011
[ 39.726124] task: ffff880220844140 task.stack: ffffc90001b88000
[ 39.726127] RIP: 0010:extent_fiemap+0x651/0x710
[ 39.726129] RSP: 0018:ffffc90001b8bd60 EFLAGS: 00010202
[ 39.726131] RAX: ffff88021824c800 RBX: 0000000000020000 RCX: 0000000000000000
[ 39.726132] RDX: 0000000000000000 RSI: ffff880217fae9a0 RDI: ffff8802205d6000
[ 39.726134] RBP: ffffc90001b8be60 R08: 0000000000020000 R09: 0000000000000000
[ 39.726135] R10: ffffffffffffffff R11: ffff880217fae9a0 R12: 0000000000020000
[ 39.726137] R13: 0000000000000000 R14: ffff880223685480 R15: ffff880223685480
[ 39.726139] FS: 00007f45c1726400(0000) GS:ffff88022fd40000(0000)
knlGS:0000000000000000
[ 39.726140] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 39.726142] CR2: 000055e152d64000 CR3: 0000000213a8c000 CR4: 00000000000006e0
[ 39.726143] Call Trace:
[ 39.726149] ? btrfs_get_extent+0xa60/0xa60
[ 39.726153] btrfs_fiemap+0x4d/0x60
[ 39.726156] do_vfs_ioctl+0x3bc/0x5e0
[ 39.726159] SyS_ioctl+0x86/0xa0
[ 39.726163] entry_SYSCALL_64_fastpath+0x17/0x98
[ 39.726165] RIP: 0033:0x7f45c103fe07
[ 39.726166] RSP: 002b:00007ffe327ecd88 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 39.726169] RAX: ffffffffffffffda RBX: 000055e1528a8d60 RCX: 00007f45c103fe07
[ 39.726170] RDX: 00007ffe327ecdd0 RSI: 00000000c020660b RDI: 000000000000000a
[ 39.726171] RBP: 0000000000000548 R08: 000000000000002b R09: 0000000000000052
[ 39.726173] R10: 000000000000000a R11: 0000000000000246 R12: 00007ffe327ecda0
[ 39.726174] R13: 000055e150c12147 R14: ffffffffffffffff R15: 00000000000000a9
[ 39.726175] Code: 04 fe ff ff 45 85 ed 4d 89 f7 0f 85 a6 fd ff ff 45 31 ed 80 7d
8f 00 48 8b 85 40 ff ff ff 48 8b b8 f0 01 00 00 0f 84 8b fd ff ff <0f> ff 4c 8b
6d a8 44 8b 65 88 48 c7 c6 90 c9 db 81 4c 8b 75 80
[ 39.726210] ---[ end trace 25106b0204355180 ]---
[ 39.726215] BTRFS warning (device sda1): unhandled fiemap cache detected:
offset=phys$35798867968 len1072 flags=0x2008
Shared and encoded?
The length seems to be quite strange, maybe a compressed inline extent.
I'll try that when I'm back from LinuxCon China.
Thanks,
Qu
I also ran btrfs/* with my patch applied on v4.11-rc2 (sorry, that's the
correct original patch base), and except some known bug, it doesn't cause
anything special.
4.11-rc2 with nothing but 4751832d applied:
[ 151.838761] ------------[ cut here ]------------
[ 151.839176] WARNING: CPU: 0 PID: 2074 at fs/btrfs/extent_io.c:4460
extent_fiemap+0x662/0x740
[ 151.840465] Modules linked in: pl2303 cp210x usbserial nouveau video ttm
[ 151.842509] CPU: 0 PID: 2074 Comm: dpkg Not tainted
4.11.0-rc2-debug-00001-g2dbdec6c76b4 #1
[ 151.844457] Hardware name: System manufacturer System Product Name/M4A77T,
BIOS 2401 05/18/2011
[ 151.846551] Call Trace:
[ 151.848625] dump_stack+0x4d/0x6d
[ 151.850636] __warn+0xd3/0xf0
[ 151.852589] warn_slowpath_null+0x18/0x20
[ 151.854552] extent_fiemap+0x662/0x740
[ 151.856466] ? btrfs_get_extent+0xa60/0xa60
[ 151.858400] btrfs_fiemap+0x4d/0x60
[ 151.860323] do_vfs_ioctl+0x3bc/0x5e0
[ 151.862216] SyS_ioctl+0x86/0xa0
[ 151.864183] entry_SYSCALL_64_fastpath+0x17/0x98
[ 151.866071] RIP: 0033:0x7f542e763e07
[ 151.868045] RSP: 002b:00007fff9d737188 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 151.869995] RAX: ffffffffffffffda RBX: 000055cbf323bd80 RCX: 00007f542e763e07
[ 151.872086] RDX: 00007fff9d7371d0 RSI: 00000000c020660b RDI: 000000000000000a
[ 151.874127] RBP: 0000000000000548 R08: 000000000000002b R09: 0000000000000052
[ 151.876246] R10: 000000000000000a R11: 0000000000000246 R12: 00007fff9d7371a0
[ 151.878292] R13: 000055cbf28aa147 R14: ffffffffffffffff R15: 00000000000000a9
[ 151.880487] ---[ end trace 135594ab8f41eada ]---
[ 151.882586] BTRFS warning (device sda1): unhandled fiemap cache detected:
offset=phys$35798867968 len1072 flags=0x2008
喵!
--
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
