diff options
| author | Olaf Faaland <[email protected]> | 2018-02-15 09:50:06 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-02-15 09:50:06 -0800 |
| commit | ec7c1b914c096ff0ca95c8b04af07ca6d2be3c7a (patch) | |
| tree | 3c4cc2cd1f06365fba2dfc1cf690ec1d74e4dca2 | |
| parent | ddc751d56beee8bf79d352ca3d8253d6238b2dc2 (diff) | |
Clarify zinject(8) explanation of -e
Error injection of EIO or ENXIO simply sets the zio's io_error value,
rather than preventing the read or write from occurring. This is
important information as it affects how the probes must be used.
Reviewed-by: Giuseppe Di Natale <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: George Melikov <[email protected]>
Signed-off-by: Olaf Faaland <[email protected]>
Closes #7172
| -rw-r--r-- | man/man8/zinject.8 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/man/man8/zinject.8 b/man/man8/zinject.8 index 6b6c3733b..c5916e342 100644 --- a/man/man8/zinject.8 +++ b/man/man8/zinject.8 @@ -112,6 +112,9 @@ Specify .BR "dtl" " for an ECHILD error," .BR "io" " for an EIO error where reopening the device will succeed, or" .BR "nxio" " for an ENXIO error where reopening the device will fail." +For EIO and ENXIO, the "failed" reads or writes still occur. The probe simply +sets the error value reported by the I/O pipeline so it appears the read or +write failed. .TP .BI "\-f" " frequency" Only inject errors a fraction of the time. Expressed as a real number |