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Damian Szuberski 78fad47cb3
Add Linux kmemleak support to ZTS
- Kmemleak `clear` is invoked right before every test case run.
- Kmemleak `scan` is requested right after each test case is finished.
- Kmemleak instrumentation is not used for
  setup/cleanup/pretest/posttest/failsafe stages to shorten the test
  case execution time.
- Kmemleak periodic scan is disabled (`scan=0`) before the test suite
  run to avoid interfering with the on-demand scan results.
- There are unavoidable potential false positives coming from kernel
  areas other than OpenZFS module.
- The ZTS with kmemleak enabled duration is increased by ~50%.

Example run
```
Running Time:   07:12:13
Percent passed: 98.3%

unreferenced object 0xffff9da82aea5410 (size 80):
  comm "kworker/u32:10", pid 942206, jiffies 4296749716 (age 2615.516s)
  hex dump (first 32 bytes):
    00 30 30 00 00 00 00 00 ff 8f 30 00 00 00 00 00  .00.......0.....
    51 e6 77 05 a8 9d ff ff 00 00 00 00 00 00 00 00  Q.w.............
  backtrace:
    [<000000005cf1fea2>] alloc_extent_state+0x1d/0xb0 [btrfs]
    [<0000000083f78ae5>] set_extent_bit+0x2ff/0x670 [btrfs]
    [<00000000de29249e>] lock_extent_bits+0x6b/0xa0 [btrfs]
    [<00000000b241f424>] lock_and_cleanup_extent_if_need+0xaf/0x1c0
       [btrfs]
    [<0000000093ca72b5>] btrfs_buffered_write+0x297/0x7d0 [btrfs]
    [<000000002c2938c8>] btrfs_file_write_iter+0x127/0x390 [btrfs]
    [<00000000b888f720>] do_iter_readv_writev+0x152/0x1b0
    [<00000000320f0bcc>] do_iter_write+0x7c/0x1c0
    [<000000000b5a8fe0>] lo_write_bvec+0x62/0x150 [loop]
    [<000000009aa03c73>] loop_process_work+0x250/0xbd0 [loop]
    [<00000000c7487d8a>] process_one_work+0x1f1/0x390
    [<000000000b236831>] worker_thread+0x53/0x3e0
    [<0000000023cb3e57>] kthread+0x127/0x150
    [<000000002d48676a>] ret_from_fork+0x22/0x30
```

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #13084
2022-02-24 10:21:13 -08:00
.github Colorize the Github test output 2022-02-16 11:40:25 -08:00
cmd log xattr=sa create/remove/update to ZIL 2022-02-22 13:06:43 -08:00
config Linux 5.11 compat: x86 SIMD: fix kernel_fpu_{begin,end}() detection 2022-02-24 09:23:41 -08:00
contrib userspace: mark arguments used 2022-02-18 09:34:08 -08:00
etc systemd: read initconfdir 2022-02-22 12:59:11 -08:00
include log xattr=sa create/remove/update to ZIL 2022-02-22 13:06:43 -08:00
lib log xattr=sa create/remove/update to ZIL 2022-02-22 13:06:43 -08:00
man log xattr=sa create/remove/update to ZIL 2022-02-22 13:06:43 -08:00
module log xattr=sa create/remove/update to ZIL 2022-02-22 13:06:43 -08:00
rpm contrib: rename initrd READMEs to README.md 2022-02-11 11:44:27 -08:00
scripts Add Linux kmemleak support to ZTS 2022-02-24 10:21:13 -08:00
tests Add Linux kmemleak support to ZTS 2022-02-24 10:21:13 -08:00
udev Udev rules: remove zvol compat symlinks (without the leading zvol/) 2021-07-06 13:41:17 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
configure.ac Linux 5.16 compat: don't use XSTATE_XSAVE to save FPU state 2022-02-09 12:50:10 -08:00
copy-builtin copy-builtin: posix conformance 2021-05-08 08:58:26 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am checkabi/storeabi relevant only to x86_64 2022-02-16 11:48:01 -08:00
META Linux 5.15 compat: META (#12824) 2021-12-07 15:35:42 -08:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md README: Update OpenZFS website url 2022-01-06 16:25:01 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

img

OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.