From: Sander Eikelenboom <linux@eikelenboom.it>
To: Juergen Gross <jgross@suse.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
"Joel Fernandes (Google)" <joel@joelfernandes.org>
Subject: Re: Linux 5.0 regression: BUG: unable to handle kernel paging request at ffff888023e26778 RIP: e030:move_page_tables+0x7c1/0xae0
Date: Sat, 9 Feb 2019 19:51:18 +0100 [thread overview]
Message-ID: <3be0ee8f-79d4-2a2f-59a5-71f3514d9dbd@eikelenboom.it> (raw)
In-Reply-To: <094e923b-4e64-57d8-42c4-6e8890473035@suse.com>
On 09/02/2019 19:48, Juergen Gross wrote:
> On 09/02/2019 19:45, Sander Eikelenboom wrote:
>> On 09/02/2019 09:26, Sander Eikelenboom wrote:
>>> L.S.,
>>>
>>>
>>> While testing a Linux 5.0-rc5-ish kernel (pull of yesterday) with some additional patches for
>>> already reported other issues i came across the issue below which i haven't seen with 4.20.x
>>>
>>> I haven't got a reproducer so i might be hard to hit it again,
>>> system is AMD and this is from the host kernel running under
>>> the Xen hypervisor might it matter.
>>
>>> --
>>>
>>> Sander
>>
>> Hi Boris / Juergen,
>>
>> The commit causing this is:
>> 2c91bd4a4e2e530582d6fd643ea7b86b27907151 mm: speed up mremap by 20x on large regions
>>
>> Since it seems there haven't been any other reports about this ..
>> could it be this doesn't specifically work well with a Xen PVH dom0 ?
>
> PVH? Not PV?
Ah sorry, indeed PV !
>
> Juergen
>
next prev parent reply other threads:[~2019-02-09 18:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-09 8:26 Linux 5.0 regression: BUG: unable to handle kernel paging request at ffff888023e26778 Sander Eikelenboom
2019-02-09 18:45 ` Linux 5.0 regression: BUG: unable to handle kernel paging request at ffff888023e26778 RIP: e030:move_page_tables+0x7c1/0xae0 Sander Eikelenboom
2019-02-09 18:48 ` Juergen Gross
2019-02-09 18:51 ` Sander Eikelenboom [this message]
2019-02-09 18:59 ` Juergen Gross
2019-02-09 18:54 ` Linux 5.0 regression: BUG: unable to handle kernel paging request at ffff888023e26778 Linus Torvalds
2019-02-09 19:44 ` [Xen-devel] " Andrew Cooper
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