From: Yuchung Cheng <ycheng@google.com>
To: Felix Fietkau <nbd@openwrt.org>
Cc: Jerry Chu <hkchu@google.com>, Eric Dumazet <edumazet@google.com>,
cerowrt-devel <cerowrt-devel@lists.bufferbloat.net>
Subject: Re: [Cerowrt-devel] TFO crashes cerowrt 3.7.1-1
Date: Sun, 13 Jan 2013 16:38:38 -0800 [thread overview]
Message-ID: <CAK6E8=faYUi9Z9XfYtQY9h1PDt7ddfFFC-J4PYae4OXcVT6bxA@mail.gmail.com> (raw)
In-Reply-To: <50F32981.9080404@openwrt.org>
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Thanks for making these efforts to debug this. Ketan: can we try replace
the one BUG_ON with two WARN_ON to confirm the exact faulty condition? I
wish I can do that myself but I don't have a box at hand.
Yuchung
On Sun, Jan 13, 2013 at 1:39 PM, Felix Fietkau <nbd@openwrt.org> wrote:
> On 2013-01-13 7:03 PM, Eric Dumazet wrote:
> > I suspect a bug in the spin_is_locked() implementation on your arch, as
> > he socket lock should be held at this point.
> I don't think this is an arch implementation bug, this probably happens
> on all !SMP systems. See this bit from include/linux/spinlock_up.h:
>
> #define arch_spin_is_locked(lock) ((void)(lock), 0)
>
> - Felix
>
>
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next prev parent reply other threads:[~2013-01-14 0:38 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-04 17:04 Dave Taht
2013-01-04 17:27 ` Eric Dumazet
2013-01-04 17:33 ` Dave Taht
2013-01-04 20:42 ` Maciej Soltysiak
2013-01-04 20:43 ` Maciej Soltysiak
2013-01-04 20:57 ` Jerry Chu
2013-01-04 21:21 ` Dave Taht
2013-01-04 21:36 ` Jerry Chu
2013-01-04 21:44 ` Dave Taht
2013-01-04 21:01 ` dpreed
2013-01-04 22:49 ` Robert Bradley
2013-01-04 21:11 ` Dave Taht
2013-01-04 21:19 ` Jerry Chu
2013-01-05 1:59 ` Ketan Kulkarni
2013-01-05 2:20 ` Yuchung Cheng
2013-01-05 3:02 ` Ketan Kulkarni
2013-01-05 3:16 ` Eric Dumazet
2013-01-05 3:35 ` Dave Taht
2013-01-05 4:05 ` Dave Taht
2013-01-05 19:13 ` Ketan Kulkarni
2013-01-13 17:01 ` Ketan Kulkarni
2013-01-13 18:03 ` Eric Dumazet
2013-01-13 21:39 ` Felix Fietkau
2013-01-14 0:38 ` Yuchung Cheng [this message]
2013-01-14 3:05 ` Eric Dumazet
2013-01-14 4:07 ` Eric Dumazet
2013-01-14 4:43 ` Ketan Kulkarni
2013-01-14 6:14 ` Dave Taht
2013-01-14 19:50 ` Dave Taht
2013-01-14 8:18 ` Jerry Chu
2013-01-14 16:32 ` Eric Dumazet
2013-01-04 22:25 ` Robert Bradley
2013-01-14 6:11 ` Dave Taht
2013-01-14 16:37 ` Ketan Kulkarni
2013-01-16 22:19 ` Maciej Soltysiak
2013-01-17 0:58 ` Dave Taht
2013-01-17 3:44 ` Dave Taht
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