Date: Fri, 4 May 2007 14:23:29 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_descrip.c vfs_syscalls.c src/sys/sys filedesc.h Message-ID: <200705041423.l44ENTRv055136@repoman.freebsd.org>
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kib 2007-05-04 14:23:29 UTC
FreeBSD src repository
Modified files:
sys/kern kern_descrip.c vfs_syscalls.c
sys/sys filedesc.h
Log:
Mark the filedescriptor table entries with VOP_OPEN being performed for them
as UF_OPENING. Disable closing of that entries. This should fix the crashes
caused by devfs_open() (and fifo_open()) dereferencing struct file * by
index, while the filedescriptor is closed by parallel thread.
Idea by: tegge
Reviewed by: tegge (previous version of patch)
Tested by: Peter Holm
Approved by: re (kensmith)
MFC after: 3 weeks
Revision Changes Path
1.309 +7 -3 src/sys/kern/kern_descrip.c
1.438 +12 -0 src/sys/kern/vfs_syscalls.c
1.77 +1 -0 src/sys/sys/filedesc.h
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