Hi Brian,
On Fri, Sep 14, 2012 at 08:19:47AM -0400, Brian Foster wrote:
> This is v3 of the speculative preallocation inode tracking patchset. This
> functionality tracks inodes with post-EOF speculative preallocation for the
> purpose of background and on-demand trimming.
>
> Background scanning occurs on a longish interval (5 minutes by default) and in
> a best-effort mode (i.e., inodes are skipped due to lock contention or dirty
> cache). The intent is to clear up post-EOF blocks on inodes that might have
> allocations hanging around due to open-write-close sequences (NFS).
>
> On demand scanning is provided via a new ioctl and supports various parameters
> such as scan mode, filtering by quota id and minimum file size. A pending use
> case for on demand scanning is for accurate quota accounting via the gluster
> scale out filesystem (i.e., to free up preallocated space when near a usage
> limit).
[33084.794491] XFS (sda2): Ending clean mount
[33170.400045] XFS: Assertion failed: !atomic_read(&VFS_I(ip)->i_count) || xfs_isilocked(ip, XFS_IOLOCK_EXCL), file: /root/xfs/fs/xfs/xfs_inode.c, line: 1128
[33170.41422[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.6.0-rc1-1.2-desktop+ (root@nfs7) (gcc version 4.6.2 (SUSE Linux) ) #26 SMP PREEMPT Fri Sep 21 18:26:16 CDT 2012
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000100-0x000000000009fbff] usable
crash> bt
PID: 1289 TASK: f38d71d0 CPU: 1 COMMAND: "kworker/1:2"
#0 [f17c9b88] crash_kexec at c0295045
#1 [f17c9be0] oops_end at c06ab2f2
#2 [f17c9bf8] die at c020539a
#3 [f17c9c10] do_trap at c06aadc1
#4 [f17c9c28] do_invalid_op at c0202eb1
#5 [f17c9cc4] error_code (via invalid_op) at c06aab7c
EAX: 0000008e EBX: ec3d9400 ECX: 0000071e EDX: 00000046 EBP: f17c9d18
DS: 007b ESI: ec3d9400 ES: 007b EDI: ef973d00 GS: 2e30
CS: 0060 EIP: f9d1dbb6 ERR: ffffffff EFLAGS: 00010292
#6 [f17c9cf8] assfail at f9d1dbb6 [xfs]
#7 [f17c9d1c] xfs_itruncate_extents at f9d6335f [xfs]
#8 [f17c9d98] xfs_free_eofblocks at f9d237d9 [xfs]
#9 [f17c9df8] xfs_inode_free_eofblocks at f9d221b4 [xfs]
#10 [f17c9e14] xfs_inode_ag_walk at f9d20ab9 [xfs]
#11 [f17c9ee4] xfs_inode_ag_iterator_tag at f9d20d6b [xfs]
#12 [f17c9f18] xfs_inodes_free_eofblocks at f9d21c95 [xfs]
#13 [f17c9f34] xfs_eofblocks_worker at f9d21cc3 [xfs]
#14 [f17c9f40] process_one_work at c0251ea5
#15 [f17c9f84] worker_thread at c0252504
#16 [f17c9fbc] kthread at c025672b
#17 [f17c9fe8] kernel_thread_helper at c06b06f4
It seems that test 133 was running at the time of the crash in two cases. This
is a neat patch set but we need to resolve this before pulling it in.
Regards,
Ben
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