From: Mark Rutland <mark.rutland@arm.com>
To: "jcm@redhat.com" <jcm@redhat.com>
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"dann.frazier@canonical.com" <dann.frazier@canonical.com>,
Steve Capper <steve.capper@linaro.org>,
"peterz@infradead.org" <peterz@infradead.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
"anders.roxell@linaro.org" <anders.roxell@linaro.org>,
Will Deacon <Will.Deacon@arm.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"hughd@google.com" <hughd@google.com>,
"christoffer.dall@linaro.org" <christoffer.dall@linaro.org>,
"gary.robertson@linaro.org" <gary.robertson@linaro.org>,
"linux@arm.linux.org.uk" <linux@arm.linux.org.uk>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"mgorman@suse.de" <mgorman@suse.de>
Subject: Re: [PATCH V4 0/6] RCU get_user_pages_fast and __get_user_pages_fast
Date: Mon, 2 Mar 2015 14:16:04 +0000 [thread overview]
Message-ID: <20150302141604.GB16779@leverpostej> (raw)
In-Reply-To: <20150227132000.GD9011@leverpostej>
> > Head's up: these patches are currently implicated in a rare-to-trigger
> > hang that we are seeing on an internal kernel. An extensive effort is
> > underway to confirm whether these are the cause. Will followup.
>
> I'm currently investigating an intermittent memory corruption issue in
> v4.0-rc1 I'm able to trigger on Seattle with 4K pages and 48-bit VA,
> which may or may not be related. Sometimes it results in a hang (when
> the vectors get corrupted and the CPUs get caught in a recursive
> exception loop).
FWIW my issue appears to be a bug in the old firmware I'm running.
Sorry for the noise!
Mark.
WARNING: multiple messages have this Message-ID (diff)
From: Mark Rutland <mark.rutland@arm.com>
To: "jcm@redhat.com" <jcm@redhat.com>
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"dann.frazier@canonical.com" <dann.frazier@canonical.com>,
Steve Capper <steve.capper@linaro.org>,
"peterz@infradead.org" <peterz@infradead.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
"anders.roxell@linaro.org" <anders.roxell@linaro.org>,
Will Deacon <Will.Deacon@arm.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"hughd@google.com" <hughd@google.com>,
"christoffer.dall@linaro.org" <christoffer.dall@linaro.org>,
"gary.robertson@linaro.org" <gary.robertson@linaro.org>,
"linux@arm.linux.org.uk" <linux@arm.linux.org.uk>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"mgorman@suse.de" <mgorman@suse.de>
Subject: Re: [PATCH V4 0/6] RCU get_user_pages_fast and __get_user_pages_fast
Date: Mon, 2 Mar 2015 14:16:04 +0000 [thread overview]
Message-ID: <20150302141604.GB16779@leverpostej> (raw)
In-Reply-To: <20150227132000.GD9011@leverpostej>
> > Head's up: these patches are currently implicated in a rare-to-trigger
> > hang that we are seeing on an internal kernel. An extensive effort is
> > underway to confirm whether these are the cause. Will followup.
>
> I'm currently investigating an intermittent memory corruption issue in
> v4.0-rc1 I'm able to trigger on Seattle with 4K pages and 48-bit VA,
> which may or may not be related. Sometimes it results in a hang (when
> the vectors get corrupted and the CPUs get caught in a recursive
> exception loop).
FWIW my issue appears to be a bug in the old firmware I'm running.
Sorry for the noise!
Mark.
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WARNING: multiple messages have this Message-ID (diff)
From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 0/6] RCU get_user_pages_fast and __get_user_pages_fast
Date: Mon, 2 Mar 2015 14:16:04 +0000 [thread overview]
Message-ID: <20150302141604.GB16779@leverpostej> (raw)
In-Reply-To: <20150227132000.GD9011@leverpostej>
> > Head's up: these patches are currently implicated in a rare-to-trigger
> > hang that we are seeing on an internal kernel. An extensive effort is
> > underway to confirm whether these are the cause. Will followup.
>
> I'm currently investigating an intermittent memory corruption issue in
> v4.0-rc1 I'm able to trigger on Seattle with 4K pages and 48-bit VA,
> which may or may not be related. Sometimes it results in a hang (when
> the vectors get corrupted and the CPUs get caught in a recursive
> exception loop).
FWIW my issue appears to be a bug in the old firmware I'm running.
Sorry for the noise!
Mark.
next prev parent reply other threads:[~2015-03-02 14:16 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-26 14:03 [PATCH V4 0/6] RCU get_user_pages_fast and __get_user_pages_fast Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` [PATCH V4 1/6] mm: Introduce a general RCU get_user_pages_fast Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-29 21:51 ` Hugh Dickins
2014-09-29 21:51 ` Hugh Dickins
2014-09-29 21:51 ` Hugh Dickins
2014-10-01 11:11 ` Catalin Marinas
2014-10-01 11:11 ` Catalin Marinas
2014-10-01 11:11 ` Catalin Marinas
2014-10-01 11:11 ` Catalin Marinas
2014-10-02 16:00 ` Steve Capper
2014-10-02 16:00 ` Steve Capper
2014-10-02 16:00 ` Steve Capper
2014-10-02 12:19 ` Andrea Arcangeli
2014-10-02 12:19 ` Andrea Arcangeli
2014-10-02 12:19 ` Andrea Arcangeli
2014-10-02 16:18 ` Steve Capper
2014-10-02 16:18 ` Steve Capper
2014-10-02 16:18 ` Steve Capper
2014-10-02 16:54 ` Andrea Arcangeli
2014-10-02 16:54 ` Andrea Arcangeli
2014-10-02 16:54 ` Andrea Arcangeli
2014-10-13 5:15 ` Aneesh Kumar K.V
2014-10-13 5:15 ` Aneesh Kumar K.V
2014-10-13 5:15 ` Aneesh Kumar K.V
2014-10-13 5:21 ` David Miller
2014-10-13 5:21 ` David Miller
2014-10-13 5:21 ` David Miller
2014-10-13 11:44 ` Steve Capper
2014-10-13 11:44 ` Steve Capper
2014-10-13 11:44 ` Steve Capper
2014-10-13 16:06 ` David Miller
2014-10-13 16:06 ` David Miller
2014-10-13 16:06 ` David Miller
2014-10-14 12:38 ` Steve Capper
2014-10-14 12:38 ` Steve Capper
2014-10-14 12:38 ` Steve Capper
2014-10-14 16:30 ` David Miller
2014-10-14 16:30 ` David Miller
2014-10-14 16:30 ` David Miller
2014-10-13 17:04 ` Aneesh Kumar K.V
2014-10-13 17:04 ` Aneesh Kumar K.V
2014-10-13 17:04 ` Aneesh Kumar K.V
2014-10-13 6:22 ` Aneesh Kumar K.V
2014-10-13 6:22 ` Aneesh Kumar K.V
2014-10-13 6:22 ` Aneesh Kumar K.V
2014-10-13 6:22 ` Aneesh Kumar K.V
2014-09-26 14:03 ` [PATCH V4 2/6] arm: mm: Introduce special ptes for LPAE Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` [PATCH V4 3/6] arm: mm: Enable HAVE_RCU_TABLE_FREE logic Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` [PATCH V4 4/6] arm: mm: Enable RCU fast_gup Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` [PATCH V4 5/6] arm64: mm: Enable HAVE_RCU_TABLE_FREE logic Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` [PATCH V4 6/6] arm64: mm: Enable RCU fast_gup Steve Capper
2014-09-26 14:03 ` Steve Capper
2014-09-26 14:03 ` Steve Capper
2015-02-27 12:42 ` [PATCH V4 0/6] RCU get_user_pages_fast and __get_user_pages_fast Jon Masters
2015-02-27 12:42 ` Jon Masters
2015-02-27 12:42 ` Jon Masters
2015-02-27 13:20 ` Mark Rutland
2015-02-27 13:20 ` Mark Rutland
2015-02-27 13:20 ` Mark Rutland
2015-03-02 14:16 ` Mark Rutland [this message]
2015-03-02 14:16 ` Mark Rutland
2015-03-02 14:16 ` Mark Rutland
2015-03-02 2:10 ` PMD update corruption (sync question) Jon Masters
2015-03-02 2:10 ` Jon Masters
2015-03-02 5:58 ` Jon Masters
2015-03-02 5:58 ` Jon Masters
2015-03-02 5:58 ` Jon Masters
2015-03-02 10:50 ` Catalin Marinas
2015-03-02 10:50 ` Catalin Marinas
2015-03-02 10:50 ` Catalin Marinas
2015-03-02 11:06 ` Jon Masters
2015-03-02 11:06 ` Jon Masters
2015-03-02 11:06 ` Jon Masters
2015-03-02 12:31 ` Peter Zijlstra
2015-03-02 12:31 ` Peter Zijlstra
2015-03-02 12:31 ` Peter Zijlstra
2015-03-02 12:40 ` Geert Uytterhoeven
2015-03-02 12:40 ` Geert Uytterhoeven
2015-03-02 12:40 ` Geert Uytterhoeven
2015-03-02 22:21 ` Jon Masters
2015-03-02 22:21 ` Jon Masters
2015-03-02 22:21 ` Jon Masters
2015-03-02 22:29 ` Jon Masters
2015-03-02 22:29 ` Jon Masters
2015-03-02 22:29 ` Jon Masters
2015-03-03 9:06 ` Arnd Bergmann
2015-03-03 9:06 ` Arnd Bergmann
2015-03-03 9:06 ` Arnd Bergmann
2015-03-03 15:46 ` Jon Masters
2015-03-03 15:46 ` Jon Masters
2015-03-03 15:46 ` Jon Masters
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