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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [regression v4.11] 617f01211baf ("8139too: use napi_complete_done()")
Date: Fri, 7 Apr 2017 21:17:54 +0300	[thread overview]
Message-ID: <20170407181754.GL30290@intel.com> (raw)

Hi,

My old P3 laptop started to die on me in the middle of larger compile
jobs (using distcc) after v4.11-rc<something>. I bisected the problem
to 617f01211baf ("8139too: use napi_complete_done()").

Unfortunately I wasn't able to capture a full oops as the machine doesn't
have serial and ramoops failed me. I did get one partial oops on vgacon
which showed rtl8139_poll() being involved (EIP was around
_raw_spin_unlock_irqrestore() supposedly), so seems to agree with my
bisect result.

So maybe some kind of nasty thing going between the hard irq and
softirq? Perhaps UP related? I tried to stare at the locking around
rtl8139_poll() for a while but it looked mostly sane to me.

-- 
Ville Syrjälä
Intel OTC

             reply	other threads:[~2017-04-07 18:18 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-07 18:17 Ville Syrjälä [this message]
2017-04-07 18:38 ` [regression v4.11] 617f01211baf ("8139too: use napi_complete_done()") Eric Dumazet
2017-04-07 18:42   ` David Miller
2017-04-08 10:23     ` Francois Romieu
2017-04-10 14:22       ` tedheadster
2017-04-10 14:55         ` Eric Dumazet
2017-04-10 12:11   ` Ville Syrjälä
2017-09-18 19:46     ` Ville Syrjälä
2017-09-18 19:52       ` Eric Dumazet
2017-09-19 12:45         ` Ville Syrjälä
2017-09-19 13:51           ` Eric Dumazet
2017-09-18 20:03       ` [PATCH net] 8139too: revisit napi_complete_done() usage Eric Dumazet
2017-09-19  3:57         ` David Miller
2018-01-22 17:27           ` tedheadster
2018-01-22 19:03             ` Eric Dumazet
2017-06-19 14:44   ` [regression v4.11] 617f01211baf ("8139too: use napi_complete_done()") Michal Kubecek
2017-07-05 19:53     ` Ville Syrjälä
2017-04-21 11:40 ` Ville Syrjälä
2017-04-21 13:29   ` Eric Dumazet
2017-04-21 15:09     ` Eric Dumazet
2017-04-21 15:34       ` Eric Dumazet

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