OpenZFS 9084 - spa_*_ashift must ignore spare devices
It's possible for the following assertion to be tripped when
running ztest:
assertion failed for thread 0xf09fca40, thread-id 549:
spa->spa_max_ashift == spa->spa_min_ashift (0xc == 0x9),
file ../../../uts/common/fs/zfs/vdev_removal.c, line 965
> $c
libc.so.1`_lwp_kill+7(ebdde6c0, ebdde6c0, a9, fee7865e)
libc.so.1`_assfail+0x214(ebddea28, fed7ac3c, 3c5, fef62000)
libc.so.1`assfail3+0xde(fed7b130, c, 0, fed812cb, 9, 0)
libzpool.so.1`spa_vdev_copy_impl+0x26b(89a4b40, ebddef74,
ebddef68, 8992dc0, ebe10a00, fef073c0)
libzpool.so.1`spa_vdev_remove_thread+0x6cd(87450c0, 0, 0, fee8f43a)
libc.so.1`_thrp_setup+0x8c(f09fca40)
libc.so.1`_lwp_start(f09fca40, 0, 0, 0, 0, 0)
> ::spa -v
ADDR STATE NAME
08723000 ACTIVE ztest
ADDR STATE AUX DESCRIPTION
087466c0 HEALTHY - root
087450c0 HEALTHY - /rpool/tmp/ztest.0a
08745640 HEALTHY - indirect
08745bc0 HEALTHY - /rpool/tmp/ztest.2a
08746140 HEALTHY - /rpool/tmp/ztest.3a
- - - spares
08744b40 HEALTHY - /rpool/tmp/ztest.spares.0
Authored by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Prashanth Sreenivasa <pks@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Ported-by: Tim Chase <tim@chase2k.com>
OpenZFS-issue: https://www.illumos.org/issues/9084
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/18acba7
Closes #6900
eecdd8e884