From: David Disseldorp <ddiss@suse.de>
To: xfs@oss.sgi.com
Cc: dsterba@suse.cz, linux-btrfs@vger.kernel.org
Subject: [PATCH v2 0/3] __btrfs_drop_extents() BUG_ON reproducer
Date: Thu, 6 Feb 2014 14:59:11 +0100 [thread overview]
Message-ID: <1391695154-2039-1-git-send-email-ddiss@suse.de> (raw)
This patch-set provides a reproducer for hitting the 3.14.0-rc1 BUG_ON()
at:
692 int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
...
839 /*
840 * | ---- range to drop ----- |
841 * | -------- extent -------- |
842 */
843 if (start <= key.offset && end < extent_end) {
844 BUG_ON(extent_type == BTRFS_FILE_EXTENT_INLINE);
845
846 memcpy(&new_key, &key, sizeof(new_key));
The first patch adds a small cloner binary which is used by btrfs/035 to
dispatch BTRFS_IOC_CLONE_RANGE requests.
This workload resembles that of Samba's vfs_btrfs module, when a Windows
client restores a file from a shadow-copy (snapshot) using server-side
copy requests.
Changes since V1:
- Use strtoull instead of atoi
- Print error conditions in cloner
- Check for cloner binary before running test
- Continue test on failure
- Add cloner to .gitignore
Feedback appreciated.
Cheers, David
.gitignore | 1 +
configure.ac | 1 +
src/Makefile | 2 +-
src/cloner.c | 192 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/035 | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/035.out | 3 +++
tests/btrfs/group | 1 +
7 files changed, 276 insertions(+), 1 deletion(-)
create mode 100644 src/cloner.c
create mode 100755 tests/btrfs/035
create mode 100644 tests/btrfs/035.out
next reply other threads:[~2014-02-06 13:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-06 13:59 David Disseldorp [this message]
2014-02-06 13:59 ` [PATCH v2 1/3] btrfs: add small program for clone testing David Disseldorp
2014-02-06 13:59 ` [PATCH v2 2/3] src/cloner: use btrfs/ioctl.h header if present David Disseldorp
2014-02-06 13:59 ` [PATCH v2 3/3] btrfs/035: add new clone overwrite regression test David Disseldorp
2014-02-06 22:45 ` Dave Chinner
2014-02-07 10:31 ` David Disseldorp
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