From: Andrey Ryabinin <ryabinin.a.a@gmail.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] kasan: Prevent deadlock in kasan reporting
Date: Thu, 3 Sep 2015 12:15:58 +0300 [thread overview]
Message-ID: <55E80FCE.6010000@gmail.com> (raw)
In-Reply-To: <1441266863-5435-4-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On 09/03/2015 10:54 AM, Aneesh Kumar K.V wrote:
> We we end up calling kasan_report in real mode, our shadow mapping
s/We we/We
> for even spinlock variable will show poisoned. This will result
> in us calling kasan_report_error with lock_report spin lock held.
> To prevent this disable kasan reporting when we are priting
s/priting/printing
> error w.r.t kasan.
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> ---
> mm/kasan/report.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
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WARNING: multiple messages have this Message-ID (diff)
From: Andrey Ryabinin <ryabinin.a.a@gmail.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] kasan: Prevent deadlock in kasan reporting
Date: Thu, 3 Sep 2015 12:15:58 +0300 [thread overview]
Message-ID: <55E80FCE.6010000@gmail.com> (raw)
In-Reply-To: <1441266863-5435-4-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On 09/03/2015 10:54 AM, Aneesh Kumar K.V wrote:
> We we end up calling kasan_report in real mode, our shadow mapping
s/We we/We
> for even spinlock variable will show poisoned. This will result
> in us calling kasan_report_error with lock_report spin lock held.
> To prevent this disable kasan reporting when we are priting
s/priting/printing
> error w.r.t kasan.
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> ---
> mm/kasan/report.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
Reviewed-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
next prev parent reply other threads:[~2015-09-03 9:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 7:54 [PATCH 1/4] kasan: Rename kasan_enabled to kasan_report_enabled Aneesh Kumar K.V
2015-09-03 7:54 ` Aneesh Kumar K.V
2015-09-03 7:54 ` [PATCH 2/4] kasan: MODULE_VADDR is not available on all archs Aneesh Kumar K.V
2015-09-03 7:54 ` Aneesh Kumar K.V
2015-09-03 8:25 ` Andrey Ryabinin
2015-09-03 8:25 ` Andrey Ryabinin
2015-09-03 7:54 ` [PATCH 3/4] kasan: Don't use kasan shadow pointer in generic functions Aneesh Kumar K.V
2015-09-03 7:54 ` Aneesh Kumar K.V
2015-09-03 8:47 ` Andrey Ryabinin
2015-09-03 8:47 ` Andrey Ryabinin
2015-09-03 7:54 ` [PATCH 4/4] kasan: Prevent deadlock in kasan reporting Aneesh Kumar K.V
2015-09-03 7:54 ` Aneesh Kumar K.V
2015-09-03 9:15 ` Andrey Ryabinin [this message]
2015-09-03 9:15 ` Andrey Ryabinin
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