Satoru Takeuchi
2014-Jul-18 08:45 UTC
[BUG] "Quota Ignored On write" problem still exist with 3.16-rc5
Hi Josef, Chris, I found "Quota Ignored On write" problem still exist with 3.16-rc5, which Kevin reported before. Kevin's report: https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg35292.html The result of bisect: https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg35304.html> I bisected and found the bad commit is the following patch. > > ==============================================================================> commit fcebe4562dec83b3f8d3088d77584727b09130b2 > Author: Josef Bacik <jba...@fb.com> > Date: Tue May 13 17:30:47 2014 -0700 > > Btrfs: rework qgroup accounting > ==============================================================================> > Josef, please take a look at this patch.Reproducer: https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg35299.html Could you tell me the progress of fixing this bug? In addition, could you fix it by 3.16? command log: ==============================================================================# ./test.sh + uname -a Linux luna.soft.fujitsu.com 3.16.0-rc5 #2 SMP Tue Jul 15 13:39:46 JST 2014 x86_64 x86_64 x86_64 GNU/Linux + df -T /test7 Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/sdc7 btrfs 29296640 1536 27169536 1% /test7 + btrfs quota ena /test7 + cd /test7 + btrfs sub cre test Create subvolume './test' + btrfs sub l -a /test7 ID 270 gen 66 top level 5 path test + btrfs qg lim 1G test # limit test subvol to 1GB + btrfs qg show -pcre /test7 qgroupid rfer excl max_rfer max_excl parent child -------- ---- ---- -------- -------- ------ ----- 0/5 16384 16384 0 0 --- --- 0/270 16384 16384 1073741824 0 --- --- + dd if=/dev/zero of=test/file0 bs=1M count=2000 2000+0 records in 2000+0 records out 2097152000 bytes (2.1 GB) copied, 9.67876 s, 217 MB/s # write 2GB. It's a bug! + sync + ls -lisaR /test7 /test7: total 20 256 16 drwxr-xr-x 1 root root 8 Jul 18 15:12 . 2 4 drwxr-xr-x. 43 root root 4096 Jul 16 08:34 .. 256 0 drwxr-xr-x 1 root root 10 Jul 18 15:17 test /test7/test: total 2048016 256 0 drwxr-xr-x 1 root root 10 Jul 18 15:17 . 256 16 drwxr-xr-x 1 root root 8 Jul 18 15:12 .. 257 2048000 -rw-r--r-- 1 root root 2097152000 Jul 18 15:17 file0 + btrfs qg show -pcre /test7 qgroupid rfer excl max_rfer max_excl parent child -------- ---- ---- -------- -------- ------ ----- 0/5 16384 16384 0 0 --- --- 0/270 2097168384 2097168384 1073741824 0 --- --- + btrfs quota dis /test7 + btrfs sub del test Transaction commit: none (default) Delete subvolume '/test7/test' + set +x # ============================================================================== NOTE: The reproducer here (./test.sh) is a bit different from above-mentioned one because of some reason. Thanks, Satoru -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html