Serapheim Dimitropoulos bbbe4b0a98 hdr_recl calls zthr_wakeup() on destroyed zthr ... There exists a race condition were hdr_recl() calls zthr_wakeup() on a destroyed zthr. The timeline is the following: [1] hdr_recl() runs first and goes intro zthr_wakeup() because arc_initialized is set. [2] arc_fini() is called by another thread, zeroes that flag, destroying the zthr, and goes into buf_init(). [3] hdr_recl() tries to enter the destroyed mutex and we blow up. This patch ensures that the ARC's zthrs are not offloaded any new work once arc_initialized is set and then destroys them after all of the ARC state has been deleted. Reviewed by: Matt Ahrens <matt@delphix.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com> Closes #9047		2019-09-25 11:27:50 -07:00
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avl	Update build system and packaging	2018-05-29 16:00:33 -07:00
icp	Minor style cleanup	2019-09-25 11:27:49 -07:00
lua	Update build system and packaging	2018-05-29 16:00:33 -07:00
nvpair	Use NV_ENCODE_NATIVE for nvlist encoding variable	2019-04-26 11:24:31 -07:00
spl	Retire unused spl_{mutex,rwlock}_{init_fini}	2019-09-25 11:27:49 -07:00
unicode	Update build system and packaging	2018-05-29 16:00:33 -07:00
zcommon	Minor style cleanup	2019-09-25 11:27:49 -07:00
zfs	hdr_recl calls zthr_wakeup() on destroyed zthr	2019-09-25 11:27:50 -07:00
.gitignore	Prepare SPL repo to merge with ZFS repo	2018-05-29 14:51:39 -07:00
Makefile.in	Fix out-of-tree build failures	2019-09-25 11:27:48 -07:00