Date: Wed, 24 Sep 2008 11:16:09 +0000 (UTC) From: Ed Schouten <ed@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern tty.c Message-ID: <200809241116.m8OBGIKQ051727@repoman.freebsd.org>
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ed 2008-09-24 11:16:09 UTC
FreeBSD src repository
Modified files:
sys/kern tty.c
Log:
SVN rev 183324 on 2008-09-24 11:16:09Z by ed
Fix a crash when calling tty_rel_free() while draining during closure.
Yesterday I got two reports of potential crashes, related to TTY
deallocation during device closure. When a thread is in TF_OPENCLOSE,
draining its output upon closure, we should not allow calls to
tty_rel_free() to happen at the same time. This could cause the TTY to
be torn down twice.
PR: kern/127561
Reported by: KOIE Hidetaka <koie suri co jp>
Discussed with: thompsa
Revision Changes Path
1.291 +2 -2 src/sys/kern/tty.c
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