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From: "Jeff V. Merkey" <jmerkey@wolfmountaingroup.com>
To: Keith Owens <kaos@sgi.com>
Cc: kdb@oss.sgi.com, linux-kernel@vger.kernel.org,
	linux-ia64@vger.kernel.org
Subject: Re: Announce: kdb v4.4 is available for kernel 2.6.15
Date: Wed, 04 Jan 2006 15:04:46 +0000	[thread overview]
Message-ID: <43BBE40E.5040600@wolfmountaingroup.com> (raw)
In-Reply-To: <13550.1136365849@kao2.melbourne.sgi.com>

Keith,

I noticed that during page faults, the OOPS handler is not getting
called when the kernel crashes in
filp_open() -- the notifier chain does not return for some reason.  I
also noticed that when this happens, if you the section in 
/arch/i386/kernel/traps.c in function die() prior to the busting of
spinlocks, it will work (sortof work).  To reproduce this error, call 
filp_open with a text string complied in the kernel.  I can reproduce on 
2.6.10 and 2.6.11 Fedora Kernels.   Also noticed that when Kprobes is 
enabled, the debugger page faults during a page fault exeception. 
Seems related to the notifier chain.

If you fixed this already, disregard this notice.

Jeff


WARNING: multiple messages have this Message-ID (diff)
From: "Jeff V. Merkey" <jmerkey@wolfmountaingroup.com>
To: Keith Owens <kaos@sgi.com>
Cc: kdb@oss.sgi.com, linux-kernel@vger.kernel.org,
	linux-ia64@vger.kernel.org
Subject: Re: Announce: kdb v4.4 is available for kernel 2.6.15
Date: Wed, 04 Jan 2006 08:04:46 -0700	[thread overview]
Message-ID: <43BBE40E.5040600@wolfmountaingroup.com> (raw)
In-Reply-To: <13550.1136365849@kao2.melbourne.sgi.com>

Keith,

I noticed that during page faults, the OOPS handler is not getting
called when the kernel crashes in
filp_open() -- the notifier chain does not return for some reason.  I
also noticed that when this happens, if you the section in 
/arch/i386/kernel/traps.c in function die() prior to the busting of
spinlocks, it will work (sortof work).  To reproduce this error, call 
filp_open with a text string complied in the kernel.  I can reproduce on 
2.6.10 and 2.6.11 Fedora Kernels.   Also noticed that when Kprobes is 
enabled, the debugger page faults during a page fault exeception. 
Seems related to the notifier chain.

If you fixed this already, disregard this notice.

Jeff


  reply	other threads:[~2006-01-04 15:04 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-24  5:48 Announce: kdb v4.4 is available for kernel 2.6.6 Keith Owens
2004-05-24  5:48 ` Keith Owens
2004-06-01 21:20 ` Thomas Duffy
2004-06-01 21:20   ` Thomas Duffy
2004-07-16  4:59   ` Keith Owens
2004-07-16  4:59     ` Keith Owens
2004-06-07  5:40 ` Announce: kdb v4.4 is available for kernel 2.6.7-rc2 Keith Owens
2004-06-07  5:40   ` Keith Owens
2004-06-17  1:16 ` Announce: kdb v4.4 is available for kernel 2.6.7 Keith Owens
2004-06-17  1:16   ` Keith Owens
2004-10-21  3:52 ` Announce: kdb v4.4 is available for kernel 2.6.9 Keith Owens
2004-10-21  3:52   ` Keith Owens
2004-12-25 12:17 ` Announce: kdb v4.4 is available for kernel 2.6.10 Keith Owens
2004-12-25 12:17   ` Keith Owens
2004-12-27 13:00   ` Paulo Marques
2005-01-24 15:21 ` gowda_avinash
2005-01-24 15:21   ` gowda_avinash
2005-01-24 15:34 ` Keith Owens
2005-01-24 15:34   ` Keith Owens
2005-01-25  4:25   ` Saravanan s
2005-01-25  4:37     ` Saravanan s
2005-01-25  4:44 ` Keith Owens
2005-01-25  4:44   ` Keith Owens
2005-01-25  5:52   ` Jack F Vogel
2005-01-25  5:52     ` Jack F Vogel
2005-03-03  2:53 ` Announce: kdb v4.4 is available for kernel 2.6.11 Keith Owens
2005-03-03  2:53   ` Keith Owens
2005-06-18  6:19 ` Announce: kdb v4.4 is available for kernel 2.6.12 Keith Owens
2005-06-18  6:19   ` Keith Owens
2005-08-29  2:12 ` Announce: kdb v4.4 is available for kernel 2.6.13 Keith Owens
2005-08-29  2:12   ` Keith Owens
2005-09-20  7:32 ` Announce: kdb v4.4 is available for kernel 2.6.14-rc1 Keith Owens
2005-09-21  6:21 ` Announce: kdb v4.4 is available for kernel 2.6.14-rc2 Keith Owens
2005-09-21  6:21   ` Keith Owens
2005-10-28  7:29 ` Announce: kdb v4.4 is available for kernel 2.6.14 Keith Owens
2005-10-28  7:29   ` Keith Owens
2006-01-04  9:10 ` Announce: kdb v4.4 is available for kernel 2.6.15 Keith Owens
2006-01-04  9:10   ` Keith Owens
2006-01-04 15:04   ` Jeff V. Merkey [this message]
2006-01-04 15:04     ` Jeff V. Merkey
2006-03-21  5:59 ` Announce: kdb v4.4 is available for kernel 2.6.16 Keith Owens
2006-03-21  5:59   ` Keith Owens
2006-04-01 17:04   ` Dan Aloni
2006-04-01 20:37     ` Hugh Dickins
2006-04-01 23:43     ` Joe Korty
2006-04-02 10:23       ` Dan Aloni
2006-03-24  6:21 ` Keith Owens
2006-03-24  6:21   ` Keith Owens
2006-06-27 11:45 ` Announce: kdb v4.4 is available for kernel 2.6.17 Keith Owens
2006-06-27 11:45   ` Keith Owens
2006-06-27 12:06   ` Nigel Cunningham
2006-06-27 12:06     ` Nigel Cunningham
2006-09-20  5:37 ` Announce: kdb v4.4 is available for kernel 2.6.18 Keith Owens
2006-09-20  5:37   ` Keith Owens

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