From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Stable <stable@vger.kernel.org>, Jan Engelhardt <jengelh@inai.de>,
linux-arch@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 3.18 04/57] vm: add VM_FAULT_SIGSEGV handling support
Date: Wed, 11 Feb 2015 11:43:07 +0800 [thread overview]
Message-ID: <20150211034307.GA2932@kroah.com> (raw)
In-Reply-To: <CALYGNiPVvgxMFyDTSFv4mUhkq-5Q+Gp2UEY5W9G0gEc8YajipQ@mail.gmail.com>
On Tue, Feb 10, 2015 at 12:22:41PM +0400, Konstantin Khlebnikov wrote:
> I've found regression:
>
> [ 257.139907] ================================================
> [ 257.139909] [ BUG: lock held when returning to user space! ]
> [ 257.139912] 3.18.6-debug+ #161 Tainted: G U
> [ 257.139914] ------------------------------------------------
> [ 257.139916] python/22843 is leaving the kernel with locks still held!
> [ 257.139918] 1 lock held by python/22843:
> [ 257.139920] #0: (&mm->mmap_sem){++++++}, at: [<ffffffff8104e4c2>]
> __do_page_fault+0x162/0x570
>
> upstream commit 7fb08eca45270d0ae86e1ad9d39c40b7a55d0190 must be backported too.
Ah, nice, I missed that one. How did you test this?
thanks,
greg k-h
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WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Stable <stable@vger.kernel.org>, Jan Engelhardt <jengelh@inai.de>,
linux-arch@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 3.18 04/57] vm: add VM_FAULT_SIGSEGV handling support
Date: Wed, 11 Feb 2015 11:43:07 +0800 [thread overview]
Message-ID: <20150211034307.GA2932@kroah.com> (raw)
Message-ID: <20150211034307.LnnOhIpcEfe4FANjy0Eml7tx-rmKv-HA2m0vT-yXqnU@z> (raw)
In-Reply-To: <CALYGNiPVvgxMFyDTSFv4mUhkq-5Q+Gp2UEY5W9G0gEc8YajipQ@mail.gmail.com>
On Tue, Feb 10, 2015 at 12:22:41PM +0400, Konstantin Khlebnikov wrote:
> I've found regression:
>
> [ 257.139907] ================================================
> [ 257.139909] [ BUG: lock held when returning to user space! ]
> [ 257.139912] 3.18.6-debug+ #161 Tainted: G U
> [ 257.139914] ------------------------------------------------
> [ 257.139916] python/22843 is leaving the kernel with locks still held!
> [ 257.139918] 1 lock held by python/22843:
> [ 257.139920] #0: (&mm->mmap_sem){++++++}, at: [<ffffffff8104e4c2>]
> __do_page_fault+0x162/0x570
>
> upstream commit 7fb08eca45270d0ae86e1ad9d39c40b7a55d0190 must be backported too.
Ah, nice, I missed that one. How did you test this?
thanks,
greg k-h
next prev parent reply other threads:[~2015-02-11 3:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20150203231211.486950145@linuxfoundation.org>
2015-02-03 23:13 ` [PATCH 3.18 04/57] vm: add VM_FAULT_SIGSEGV handling support Greg Kroah-Hartman
2015-02-03 23:13 ` Greg Kroah-Hartman
2015-02-10 8:22 ` Konstantin Khlebnikov
2015-02-11 3:43 ` Greg Kroah-Hartman [this message]
2015-02-11 3:43 ` Greg Kroah-Hartman
2015-02-11 3:49 ` Linus Torvalds
2015-02-11 4:16 ` Greg Kroah-Hartman
2015-02-11 4:16 ` Greg Kroah-Hartman
2015-02-11 5:34 ` Konstantin Khlebnikov
2015-02-11 5:34 ` Konstantin Khlebnikov
2015-02-16 9:50 ` Luis Henriques
2015-02-03 23:13 ` [PATCH 3.18 06/57] vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS Greg Kroah-Hartman
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