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3de7aeb68a
In case we have I/O and try to remove an L2ARC device a deadlock might occur. arc_read()->zio_read()->zfs_blkptr_verify() waits for SCL_VDEV to be dropped while holding the hash_lock. However, spa_l2cache_load() holds SCL_ALL and waits for the hash_lock in l2arc_evict(). Fix this by moving zfs_blkptr_verify() to the top top arc_read() before the hash_lock is taken. Verify the block pointer and return a checksum error if damaged rather than halting the system, by using BLK_VERIFY_LOG instead of BLK_VERIFY_HALT. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Mark Maybee <mark.maybee@delphix.com> Signed-off-by: George Amanakis <gamanakis@gmail.com> Closes #12054 |
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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.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
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
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.