system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-17 13:53:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

Make sure the TTY has not disappeared out from under us before calling

Browse source 
ttydevsw_outwakeup().  This should fix panics which occur after remote
login sessions timeout during moderate TTY activity.  An example of
where this might occur is where a pending write to the terminal is
occurring while sshd(8) is shutting down the TTY after a TCP timeout.

Submitted by:	ed
This commit is contained in:
Christian S.J. Peron 2008-09-10 20:12:10 +00:00
parent d8f4dd34d6
commit 856ebf8530
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=182917
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
sys/kern/tty_ttydisc.c
View file

@ -539,8 +539,9 @@ ttydisc_write(struct tty *tp, struct uio *uio, int ioflag)
} while (oblen > 0);
}
done:
ttydevsw_outwakeup(tp);
done:
if (!tty_gone(tp))
ttydevsw_outwakeup(tp);
/*
* Add the amount of bytes that we didn't process back to the