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Brian Behlendorf
bb25362553
The zdb(8) command may not terminate in the case where the pool gets suspended and there is a caller in zio_wait() blocking on an outstanding read I/O that will never complete. This can in turn cause ztest(1) to block indefinitely despite the deadman. Resolve the issue by setting the default failure mode for zdb(8) to panic. In user space we always want the command to terminate when forward progress is no longer possible. Reviewed-by: Tim Chase <tim@chase2k.com> Reviewed by: Thomas Caputi <tcaputi@datto.com> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #6999
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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