2009/2/2 Yoshihiro Takahashi <ytakahashi@xxxxxxxxxxxxxxxx>: > Hi, Josef > > On Fri, 30 Jan 2009 08:49:35 -0500 Josef Bacik <jbacik@xxxxxxxxxx> wrote: >> On Fri, Jan 30, 2009 at 02:35:28PM +0900, Yoshihiro Takahashi wrote: >> > Hi. >> > >> > I create many files on btrfs of 16GB partition. >> > may 13,000,000 files. >> > I get this report. >> > >> > I think about the following fix. >> > When there is not space, return of ENOSPC. >> > Or add lock in free extents. >> > >> >> Are you just creating files, or are you doing something else? Thanks, >> >> Josef >> -- > > I made a lot of files. > Perhaps surpass 13,000,000 file. > > I created directry first. > I get this BUG when I made the file afterwards. > > I got the following report to count of the files when I performed find. Hi I have reproduced similar problem on linux-next. I run `stress -c 4 -d 8` on btrfs. But it looks like ENOSPC-problem, doesn't it? btrfs allocation failed flags 1, wanted 4096 space_info has 0 free, is full block group 12582912 has 8388608 bytes, 8388608 used 0 pinned 0 reserved 0 blocks of free space at or bigger than bytes is block group 229638144 has 400556032 bytes, 400556032 used 0 pinned 0 reserved 0 blocks of free space at or bigger than bytes is block group 630194176 has 400556032 bytes, 400556032 used 0 pinned 0 reserved 0 blocks of free space at or bigger than bytes is block group 1030750208 has 400556032 bytes, 399540224 used 0 pinned 1015808 reserved 0 blocks of free space at or bigger than bytes is block group 1431306240 has 400556032 bytes, 400547840 used 0 pinned 8192 reserved 0 blocks of free space at or bigger than bytes is block group 1831862272 has 400556032 bytes, 400547840 used 0 pinned 8192 reserved 0 blocks of free space at or bigger than bytes is block group 2232418304 has 400556032 bytes, 399519744 used 0 pinned 1036288 reserved 0 blocks of free space at or bigger than bytes is block group 2632974336 has 400556032 bytes, 400547840 used 0 pinned 8192 reserved 0 blocks of free space at or bigger than bytes is block group 3233808384 has 362872832 bytes, 178257920 used 0 pinned 184614912 reserved 0 blocks of free space at or bigger than bytes is ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3176! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC last sysfs file: /sys/kernel/uevent_seqnum CPU 0 Modules linked in: Pid: 2235, comm: stress Not tainted 2.6.29-rc4-next-20090209 #3 PowerEdge 1950 RIP: 0010:[<ffffffff8041366d>] [<ffffffff8041366d>] __btrfs_reserve_extent+0x28d/0x330 .. Call Trace: [<ffffffff80413746>] btrfs_reserve_extent+0x36/0x60 [<ffffffff8042882b>] cow_file_range+0x16b/0x380 [<ffffffff80438576>] ? free_extent_state+0x46/0x70 [<ffffffff80429470>] run_delalloc_range+0x350/0x360 [<ffffffff8043b049>] ? test_range_bit+0xb9/0x180 [<ffffffff8043b8e8>] ? find_lock_delalloc_range+0x108/0x190 [<ffffffff8043baa3>] __extent_writepage+0x133/0x890 [<ffffffff80235ad9>] ? sub_preempt_count+0xa9/0xf0 [<ffffffff8062d32d>] ? schedule+0x1d/0x40 [<ffffffff8029c3bf>] ? clear_page_dirty_for_io+0xdf/0xf0 [<ffffffff80439887>] extent_write_cache_pages+0x1c7/0x390 [<ffffffff804388b0>] ? flush_write_bio+0x0/0x30 [<ffffffff8043b970>] ? __extent_writepage+0x0/0x890 [<ffffffff80282054>] ? __rcu_read_unlock+0xa4/0xc0 [<ffffffff80439a8d>] extent_writepages+0x3d/0x60 [<ffffffff80426050>] ? btrfs_get_extent+0x0/0x950 [<ffffffff80422fe3>] btrfs_writepages+0x23/0x30 [<ffffffff8029cbdb>] do_writepages+0x2b/0x50 [<ffffffff802e5aa1>] __writeback_single_inode+0xa1/0x3f0 [<ffffffff802e62e2>] ? generic_sync_sb_inodes+0x3a2/0x420 [<ffffffff802e6288>] generic_sync_sb_inodes+0x348/0x420 [<ffffffff802e6545>] writeback_inodes+0x65/0x100 [<ffffffff8029d798>] balance_dirty_pages_ratelimited_nr+0x278/0x3f0 [<ffffffff8042a82c>] btrfs_file_write+0x42c/0x710 [<ffffffff802c6ffb>] vfs_write+0xcb/0x170 [<ffffffff802c7190>] sys_write+0x50/0x90 [<ffffffff8020bc1b>] system_call_fastpath+0x16/0x1b -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
