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Matthew Ahrens 2dca37d8dc OpenZFS 9424 - ztest failure: "unprotected error in call to Lua API (Invalid value type 'function' for key 'error')" 
Ztest failed with the following crash.

    ::status

    debugging core file of ztest (64-bit) from clone-dc-slave-280-bc7947b1.dcenter
    file: /usr/bin/amd64/ztest
    initial argv: /usr/bin/amd64/ztest
    threading model: raw lwps
    status: process terminated by SIGABRT (Abort), pid=2150 uid=1025 code=-1
    panic message: failure for thread 0xfffffd7fff112a40, thread-id 1: unprotected error in call to Lua API (Invalid
    value type 'function' for key 'error')

    ::stack

    libc.so.1`_lwp_kill+0xa()
    libc.so.1`_assfail+0x182(fffffd7fffdfe8d0, 0, 0)
    libc.so.1`assfail+0x19(fffffd7fffdfe8d0, 0, 0)
    libzpool.so.1`vpanic+0x3d(fffffd7ffaa58c20, fffffd7fffdfeb00)
    0xfffffd7ffaa28146()
    0xfffffd7ffaa0a109()
    libzpool.so.1`luaD_throw+0x86(3011a48, 2)
    0xfffffd7ffa9350d3()
    0xfffffd7ffa93e3f1()
    libzpool.so.1`zcp_lua_to_nvlist+0x33(3011a48, 1, 2686470, fffffd7ffaa2e2c3)
    libzpool.so.1`zcp_convert_return_values+0xa4(3011a48, 2686470, fffffd7ffaa2e2c3, fffffd7fffdfedd0)
    libzpool.so.1`zcp_pool_error+0x59(fffffd7fffdfedd0, 1e0f450)
    libzpool.so.1`zcp_eval+0x6f8(1e0f450, fffffd7ffaa483f8, 1, 0, 6400000, 1d33b30)
    libzpool.so.1`dsl_destroy_snapshots_nvl+0x12c(2786b60, 0, 484750)
    libzpool.so.1`dsl_destroy_snapshot+0x4f(fffffd7fffdfef70, 0)
    ztest_dsl_dataset_cleanup+0xea(fffffd7fffdff4c0, 1)
    ztest_dataset_destroy+0x53(1)
    ztest_run+0x59f(fffffd7fff0e0498)
    main+0x7ff(1, fffffd7fffdffa88)
    _start+0x6c()

The problem is that zcp_convert_return_values() assumes that there's
exactly one value on the stack, but that isn't always true. It ends up
putting the wrong thing on the stack which is then consumed by
zcp_convert_return values, which either adds the wrong message to the
nvlist, or blows up.

The fix is to make sure that callers of zcp_convert_return_values()
clear the stack before pushing their error message, and
zcp_convert_return_values() should VERIFY that the stack is the expected
size.

Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Sebastien Roy <sebastien.roy@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Don Brady <don.brady@delphix.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Robert Mustacchi <rm@joyent.com>

OpenZFS-issue: https://www.illumos.org/issues/9424
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/eb7e57429
Closes #7696
2018-07-10 21:29:23 -07:00
.github Small cleanup of PR and issue templates 2018-05-15 09:02:57 -07:00
cmd Reduce zdb output when pool contains checkpoint 2018-07-10 21:23:17 -07:00
config Linux 4.14 compat: blk_queue_stackable() 2018-06-19 21:52:45 -07:00
contrib Add pyzfs build directories to gitignore 2018-06-11 18:42:12 -07:00
etc Minor documentation, logging, and testing typos 2018-06-07 09:38:39 -07:00
include OpenZFS 9330 - stack overflow when creating a deeply nested dataset 2018-07-09 13:02:50 -07:00
lib OpenZFS 9330 - stack overflow when creating a deeply nested dataset 2018-07-09 13:02:50 -07:00
man OpenZFS 9330 - stack overflow when creating a deeply nested dataset 2018-07-09 13:02:50 -07:00
module OpenZFS 9424 - ztest failure: "unprotected error in call to Lua API (Invalid value type 'function' for key 'error')" 2018-07-10 21:29:23 -07:00
rpm Update build system and packaging 2018-05-29 16:00:33 -07:00
scripts OpenZFS 9330 - stack overflow when creating a deeply nested dataset 2018-07-09 13:02:50 -07:00
tests OpenZFS 9330 - stack overflow when creating a deeply nested dataset 2018-07-09 13:02:50 -07:00
udev Add kernel module auto-loading 2018-03-13 10:45:55 -07:00
.gitignore Ignore *.o.ur-safe build artifacts 2018-05-13 18:59:02 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
copy-builtin copy-builtin: SPL must be in Kbuild first 2018-06-15 15:16:29 -07:00
COPYRIGHT Update build system and packaging 2018-05-29 16:00:33 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am make install only works once 2018-05-31 09:19:59 -07:00
META Linux compat 4.18: check_disk_size_change() 2018-06-15 15:05:21 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Explicitly state supported Linux versions 2018-05-30 20:11:19 -07:00
TEST Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux 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 kernel versions.