e70664bafc
Merge the ZFS I/O deadman thread from vendor (illumos). This feature panics the system on hanging ZFS I/O, helps debugging and resumes failed service. The panic behavior can be controlled with the loader-only tunables: vfs.zfs.deadman_enabled (enable or disable panic on stalled ZFS I/O) vfs.zfs.deadman_synctime (expiration time for stalled ZFS I/O) By default, ZFS I/O deadman is enabled by default on amd64 and i386 excluding virtual guest machines. Illumos ZFS issues: 3246 ZFS I/O deadman thread References: https://www.illumos.org/issues/3246 MFC after: 2 weeks |
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| boot/zfs | ||
| compat/opensolaris | ||
| contrib/opensolaris | ||
| dev | ||