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From: Joerg, Roedel, <jroedel@suse.de>
To: lkp@lists.01.org
Subject: Re: 0604a4fd53 ("x86/mm: remove vmalloc faulting"): BUG: unable to handle page fault for address: f8001038
Date: Thu, 04 Jun 2020 09:57:28 +0200	[thread overview]
Message-ID: <20200604075728.GM6857@suse.de> (raw)
In-Reply-To: <5ed869c7.3GpRlu0hrFzKB6an%lkp@intel.com>

[-- Attachment #1: Type: text/plain, Size: 905 bytes --]

Hi,

On Thu, Jun 04, 2020 at 11:25:59AM +0800, kernel test robot wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> 
> commit 0604a4fd53020a98f029e7fd56d896a136ff2357
> Author:     Joerg Roedel <jroedel@suse.de>
> AuthorDate: Sat May 16 15:19:37 2020 +1000
> Commit:     Stephen Rothwell <sfr@canb.auug.org.au>
> CommitDate: Sat May 16 15:19:37 2020 +1000
> 
>     x86/mm: remove vmalloc faulting
>     
>     Remove fault handling on vmalloc areas, as the vmalloc code now takes care
>     of synchronizing changes to all page-tables in the system.

This report is a false positive as the tested commit history does not
contain the fixup for map_kernel_range_noflush() which adds the call to
arch_sync_kernel_mappings() there.


Regards,

	Joerg

WARNING: multiple messages have this Message-ID (diff)
From: "Joerg, Roedel," <jroedel@suse.de>
To: kernel test robot <lkp@intel.com>
Cc: LKP <lkp@lists.01.org>,
	Linux Memory Management List <linux-mm@kvack.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Stephen, Rothwell," <sfr@canb.auug.org.au>,
	philip.li@intel.com
Subject: Re: 0604a4fd53 ("x86/mm: remove vmalloc faulting"):  BUG: unable to handle page fault for address: f8001038
Date: Thu, 4 Jun 2020 09:57:28 +0200	[thread overview]
Message-ID: <20200604075728.GM6857@suse.de> (raw)
In-Reply-To: <5ed869c7.3GpRlu0hrFzKB6an%lkp@intel.com>

Hi,

On Thu, Jun 04, 2020 at 11:25:59AM +0800, kernel test robot wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> 
> commit 0604a4fd53020a98f029e7fd56d896a136ff2357
> Author:     Joerg Roedel <jroedel@suse.de>
> AuthorDate: Sat May 16 15:19:37 2020 +1000
> Commit:     Stephen Rothwell <sfr@canb.auug.org.au>
> CommitDate: Sat May 16 15:19:37 2020 +1000
> 
>     x86/mm: remove vmalloc faulting
>     
>     Remove fault handling on vmalloc areas, as the vmalloc code now takes care
>     of synchronizing changes to all page-tables in the system.

This report is a false positive as the tested commit history does not
contain the fixup for map_kernel_range_noflush() which adds the call to
arch_sync_kernel_mappings() there.


Regards,

	Joerg



  reply	other threads:[~2020-06-04  7:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-04  3:25 0604a4fd53 ("x86/mm: remove vmalloc faulting"): BUG: unable to handle page fault for address: f8001038 kernel test robot
2020-06-04  3:25 ` kernel test robot
2020-06-04  7:57 ` Joerg, Roedel, jroedel [this message]
2020-06-04  7:57   ` Joerg, Roedel,

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