On 4 July 2012 13:19, Liu Bo <liubo2...@cn.fujitsu.com> wrote: > On 07/04/2012 11:37 AM, Daniel J Blueman wrote: >>> Hi everyone, >>> >>> I've got a nice set of fixes from Josef, Jan, Ilya and others in my >>> for-linus branch: >>> >>> git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git >>> for-linus >>> >>> Some of the changes are fixes for the tree logging code, so I ran some >>> extra crash runs against them Friday night. >>> >>> I ended up with a new crash in the tree log directory deletion replay >>> code, so I didn't send out the pull request to Linus. >>> >>> It isn't clear yet if the new crash is because I was testing differently >>> or if it is a regression. I'm nailing it down this weekend, but please >>> give my for-linus a shot. >> >> I consistently run into this assertion [1] while running a fio >> workload on a fresh RAID10 filesystem with a balance running. >> >> Let me know if you need steps to reproduce, debug etc. > > Seems that additional condition does not catch the bug. > > Plz show us the steps to reproduce, I'll try to reproduce it locally and nail > it down.
The reproducer auto-generated from my test [1] consistently hits the spot here; config @ http://quora.org/2012/kconfig-btrfs . You'll need the fio workload file [2] in the same dir. Thanks, Daniel --- [1] #!/bin/bash -ex modprobe brd rd_size=1572864 rd_nr=4 # or use kernel param: ramdisk_size=1572864 mkdir -p /tmp/btrfsathon sync mkfs.btrfs -m raid1 -d raid1 -l 4096 -n 4096 /dev/ram2 /dev/ram3 /dev/ram1 mount /dev/ram1 /tmp/btrfsathon -o nodatacow,autodefrag,ssd,flushoncommit btrfs filesystem defragment /tmp/btrfsathon ||: & sleep 0.017 fio --timeout=60 ./workload ||: & sleep 0.000 btrfs filesystem defragment /tmp/btrfsathon ||: & sleep 0.012 btrfs filesystem defragment /tmp/btrfsathon ||: & sleep 0.010 btrfs filesystem defragment /tmp/btrfsathon ||: & sleep 0.003 btrfs filesystem defragment /tmp/btrfsathon ||: & sleep 0.003 btrfs filesystem balance /tmp/btrfsathon ||: & sleep 0.003 fio --timeout=60 ./workload ||: & sleep 0.000 wait umount /tmp/btrfsathon --- [2] 'workload' [global] directory=/tmp/btrfsathon rw=randread size=128m ioengine=libaio iodepth=32 invalidate=1 direct=1 [bgwriter] rw=randwrite iodepth=32 [queryA] iodepth=2 ioengine=mmap direct=0 thinktime=1 [queryB] iodepth=2 ioengine=mmap direct=0 thinktime=1 [bgupdater] rw=randrw iodepth=32 size=64m -- Daniel J Blueman -- 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
