Date: Sat, 10 Feb 2001 22:26:12 +0100 From: Andrea Campi <andrea@webcom.it> To: Jake Burkholder <jburkholder0829@home.com> Cc: freebsd-current@freebsd.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/alpha/alpha trap.c src/sys/i386/i386 trap.c Message-ID: <20010210222610.A449@webcom.it> In-Reply-To: <20010210203757.E1C1BBAB0@cr66388-a.rchrd1.on.wave.home.com>; from jburkholder0829@home.com on Sat, Feb 10, 2001 at 03:37:52PM -0500 References: <jake@FreeBSD.org> <20010210203757.E1C1BBAB0@cr66388-a.rchrd1.on.wave.home.com>
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> This fixes -current on my machines (i386 UP and SMP).
Confirmed for UP i686.
> Should be in the clear now. asmodia has seen a lock reversal between
> the process lock and uidinfo lock, but I can't reproduce it. You
> probably want to remove the kernel option WITNESS_DDB if you have it
> it enabled.
Same here. I get the (now usual):
lock order reversal
1st vnode interlock last acquired @ ../../kern/vfs_vnops.c:644
2nd 0xc0299bc0 mntvnode @ ../../ufs/ffs/ffs_vfsops.c:940
3rd 0xc6595dac vnode interlock @ ../../ufs/ffs/ffs_vfsops.c:949
then later:
lock order reversal
1st lockmgr last acquired @ ../../kern/kern_lock.c:505
2nd 0xc02824a0 uidinfo hash @ ../../kern/kern_resource.c:727
3rd 0xc0280460 lockmgr @ ../../kern/kern_lock.c:239
and a few seconds later:
lock order reversal
1st lockmgr last acquired @ ../../kern/kern_lock.c:505
2nd 0xc0ac9e1c uidinfo struct @ ../../kern/kern_resource.c:781
3rd 0xc0280460 lockmgr @ ../../kern/kern_lock.c:239
Bye,
Andrea
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