From: Ingo Molnar <mingo@elte.hu>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, laijs@cn.fujitsu.com,
dipankar@in.ibm.com, akpm@linux-foundation.org,
mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org,
dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de,
peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com
Subject: Re: [PATCH tip/core/rcu 0/8] rcu: add lockdep-based diagnostics to rcu_dereference()
Date: Wed, 13 Jan 2010 17:37:51 +0100 [thread overview]
Message-ID: <20100113163751.GA13300@elte.hu> (raw)
In-Reply-To: <20100113161721.GC6803@linux.vnet.ibm.com>
* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> On Wed, Jan 13, 2010 at 10:22:42AM +0100, Ingo Molnar wrote:
> >
> > FYI, i'm getting various runtime warnings triggered by the new RCU checks:
> >
> > [ 20.630034] WARNING: at net/core/sock.c:1076 __sk_free+0x108/0x140()
> >
> > bootlog and config attached.
>
> Gah!!! I forgot to label the RCU-lockdep stuff "RFC"!!! Could you
> please rewind tip/core/rcu back to b6407e8639 ("rcu: Give different
> levels of the rcu_node hierarchy distinct lockdep names")?
Sure - i have done that.
> I have fixes for many of the warnings below, both as modifications to uses
> of RCU and as modifications to the check code itself. But I have been
> building a new patchsets rather than keeping patches on top of this
> patchset. I also have modifications in the works to ease transition, for
> example, but having a separate CONFIG_PROVE_RCU.
Sure, no problem!
Ingo
prev parent reply other threads:[~2010-01-13 16:38 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-05 2:03 Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 1/8] rcu: introduce lockdep-based checking to RCU read-side primitives Paul E. McKenney
2010-01-13 10:28 ` [tip:core/rcu] rcu: Introduce " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 2/8] rcu: add lockdep-enabled variants of rcu_dereference() Paul E. McKenney
2010-01-13 10:28 ` [tip:core/rcu] rcu: Add " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 3/8] rcu: disable lockdep checking in RCU list-traversal primitives Paul E. McKenney
2010-01-13 10:29 ` [tip:core/rcu] rcu: Disable " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 4/8] net: add checking to rcu_dereference() primitives Paul E. McKenney
2010-01-13 10:30 ` [tip:core/rcu] net: Add " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 5/8] sched: use lockdep-based checking on rcu_dereference() Paul E. McKenney
2010-01-13 10:29 ` [tip:core/rcu] sched: Use " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 6/8] vfs: apply lockdep-based checking to rcu_dereference() uses Paul E. McKenney
2010-01-13 10:30 ` [tip:core/rcu] vfs: Apply " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 7/8] radix-tree: disable RCU lockdep checking in radix tree Paul E. McKenney
2010-01-13 10:29 ` [tip:core/rcu] radix-tree: Disable " tip-bot for Paul E. McKenney
2010-01-05 2:04 ` [PATCH tip/core/rcu 8/8] idr: apply lockdep-based diagnostics to rcu_dereference() uses Paul E. McKenney
2010-01-13 10:29 ` [tip:core/rcu] idr: Apply " tip-bot for Paul E. McKenney
2010-01-13 9:22 ` [PATCH tip/core/rcu 0/8] rcu: add lockdep-based diagnostics to rcu_dereference() Ingo Molnar
2010-01-13 16:17 ` Paul E. McKenney
2010-01-13 16:37 ` Ingo Molnar [this message]
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