null.4: Note that reads from /dev/zero are interruptible since Linux 2.6.31

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-05-10 12:44:40 +02:00
parent 6c22e3235a
commit dcc9ee3475
1 changed files with 8 additions and 0 deletions

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@ -61,6 +61,14 @@ chown root:root /dev/null /dev/zero
.SH NOTES
If these devices are not writable and readable for all users, many
programs will act strangely.
Since Linux 2.6.31,
.\" commit 2b83868723d090078ac0e2120e06a1cc94dbaef0
reads from
.IR /dev/zero
are interruptible by signals.
(This change was made to help with bad latencies for large reads from
.IR /dev/zero .)
.SH SEE ALSO
.BR chown (1),
.BR mknod (1),