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From: Nishanth Aravamudan <nacc@us.ibm.com>
To: David Miller <davem@davemloft.net>
Cc: mchan@broadcom.com, torvalds@linux-foundation.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: tg3: unable to handle null pointer dereference
Date: Fri, 6 Apr 2007 18:53:01 -0700	[thread overview]
Message-ID: <20070407015301.GA9537@us.ibm.com> (raw)
In-Reply-To: <20070406.173600.38712619.davem@davemloft.net>

On 06.04.2007 [17:36:00 -0700], David Miller wrote:
> From: "Michael Chan" <mchan@broadcom.com>
> Date: Fri, 06 Apr 2007 15:57:13 -0700
> 
> > On Fri, 2007-04-06 at 14:40 -0700, Nishanth Aravamudan wrote:
> > 
> > > 2.6.21-rc5 is ok. 2.6.21-rc6 results in
> > > 
> > > [   14.241665] Unable to handle kernel NULL pointer dereference (address 0000000000000000)
> > 
> > Sorry, I think this should fix it:
> > 
> > [TG3]: Fix crash during tg3_init_one().
> > 
> > The driver will crash when the chip has been initialized by EFI before
> > tg3_init_one().  In this case, the driver will call tg3_chip_reset()
> > before allocating consistent memory.
> > 
> > The bug is fixed by checking for tp->hw_status before accessing it
> > during tg3_chip_reset().
> > 
> > Signed-off-by: Michael Chan <mchan@broadcom.com>
> 
> Applied, thanks Michael.

FWIW, tested, no panic.

Tested-by: Nishanth Aravamudan <nacc@us.ibm.com>

Thanks,
Nish

-- 
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center

  reply	other threads:[~2007-04-07  1:55 UTC|newest]

Thread overview: 90+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-06  2:50 Linux 2.6.21-rc6 Linus Torvalds
2007-04-06 21:40 ` tg3: unable to handle null pointer dereference [Re: Linux 2.6.21-rc6] Nishanth Aravamudan
2007-04-06 22:57   ` Michael Chan
2007-04-07  0:36     ` tg3: unable to handle null pointer dereference David Miller
2007-04-07  1:53       ` Nishanth Aravamudan [this message]
2007-04-06 22:44 ` Linux 2.6.21-rc6 - regressions update Soeren Sonnenburg
2007-04-06 23:04   ` Linus Torvalds
2007-04-07  8:12     ` [patch] high-res timers: UP resume fix Ingo Molnar
2007-04-07  8:25       ` Ingo Molnar
2007-04-07  8:48         ` Thomas Gleixner
2007-04-07  8:50           ` Ingo Molnar
2007-04-07  9:48           ` Rafael J. Wysocki
2007-04-07  9:47             ` Ingo Molnar
2007-04-07  9:51               ` Thomas Gleixner
2007-04-07  9:53               ` Rafael J. Wysocki
2007-04-11 14:00             ` Pavel Machek
2007-04-07  8:51       ` Thomas Gleixner
2007-04-07  9:49       ` [patch] high-res timers: " Ingo Molnar
2007-04-07 10:02         ` Rafael J. Wysocki
2007-04-07 10:05           ` [patch, take #3] " Ingo Molnar
2007-04-07 10:45             ` Soeren Sonnenburg
2007-04-08 15:57     ` Linux 2.6.21-rc6 - regressions update Soeren Sonnenburg
2007-04-07  8:48 ` Linux 2.6.21-rc6 Michal Piotrowski
2007-04-07 18:37 ` Randy Dunlap
2007-04-07 18:46   ` Linus Torvalds
2007-04-07 18:50     ` Randy Dunlap
2007-04-07 18:51     ` Linus Torvalds
2007-04-07 20:58 ` Gene Heskett
2007-04-08 23:09 ` Andrew Morton
2007-04-09  0:42   ` Greg KH
2007-04-09  0:59   ` Jeff Garzik
2007-04-10  7:57     ` Chris Wedgwood
2007-04-11  7:38       ` Ingo Molnar
2007-04-10  3:32   ` Dmitry Torokhov
2007-04-10 14:35 ` Jeff Chua
2007-04-10 15:35   ` Linus Torvalds
2007-04-12  4:16     ` Jeff Chua
2007-04-12  9:55 ` [new 2.6.21-rc6 crash] BUG: unable to handle kernel paging request at virtual address 6b6b6ceb Ingo Molnar
2007-04-12 15:14 ` Linux 2.6.21-rc6 Mattia Dongili
2007-04-12 17:02   ` Mattia Dongili
2007-04-12 18:26   ` Maxim Levitsky
2007-04-13  8:52     ` Mattia Dongili
2007-04-13 21:29 ` Tobias Diedrich
2007-04-13 23:50   ` Adrian Bunk
2007-04-14  6:50     ` Tobias Diedrich
2007-04-14  8:16     ` Tobias Diedrich
2007-04-14  9:05       ` Rafael J. Wysocki
2007-04-14 10:32         ` Tobias Diedrich
2007-04-14 12:26       ` Adrian Bunk
2007-04-14 12:09     ` Tobias Diedrich
2007-04-14 12:24       ` Tobias Diedrich
2007-04-14 12:31         ` Tobias Diedrich
2007-04-14 13:00           ` Adrian Bunk
2007-04-14 18:28             ` Rafael J. Wysocki
2007-04-14 19:56               ` Tobias Diedrich
2007-04-14 20:23                 ` Rafael J. Wysocki
2007-04-14 20:25                   ` Adrian Bunk
2007-04-14 20:38                     ` Rafael J. Wysocki
2007-04-14 21:35                   ` Tobias Diedrich
2007-04-14 21:58                     ` Rafael J. Wysocki
2007-04-15  7:38                       ` Tobias Diedrich
2007-04-15  8:02                         ` Tobias Diedrich
2007-04-15 11:16                           ` Rafael J. Wysocki
2007-04-15 14:19                             ` Dmitry Torokhov
2007-04-15 15:52                               ` Rafael J. Wysocki
2007-04-15 18:50                                 ` Tobias Diedrich
2007-04-15 19:37                                   ` Rafael J. Wysocki
2007-04-15 15:14                             ` [linux-pm] " David Brownell
2007-04-15 16:37                               ` Rafael J. Wysocki
2007-04-15 17:53                                 ` David Brownell
2007-04-15 19:40                                 ` Tobias Diedrich
2007-04-15 19:54                                   ` Rafael J. Wysocki
2007-04-25 17:14                                     ` Tobias Diedrich
2007-04-25 19:36                                       ` Rafael J. Wysocki
2007-04-25 20:09                                         ` Tobias Diedrich
2007-04-14  0:36 ` [1/3] 2.6.21-rc6: known regressions Adrian Bunk
2007-04-14  0:38 ` [2/3] " Adrian Bunk
2007-04-14  0:38 ` [3/3] " Adrian Bunk
2007-04-14  1:57   ` Antonino A. Daplas
2007-04-15 16:26     ` Marcus Better
2007-04-15 23:08       ` Antonino A. Daplas
2007-04-16  6:23         ` Marcus Better
2007-04-16  6:45           ` Antonino A. Daplas
2007-04-17  8:17             ` Marcus Better
2007-04-17  9:27               ` Antonino A. Daplas
2007-04-17 11:54                 ` Marcus Better
2007-04-24 15:33               ` Pavel Machek
2007-04-14  7:24   ` Tobias Doerffel
2007-04-14  7:40   ` Dave Jones
2007-04-15 17:15   ` Jeff Chua

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