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From: Ingo Molnar <mingo@kernel.org>
To: lkp@lists.01.org
Subject: Re: [x86/mm/pat, drivers/media/ivtv] WARNING: CPU: 0 PID: 1 at drivers/media/pci/ivtv/ivtvfb.c:1270 ivtvfb_init()
Date: Mon, 22 Jun 2015 08:36:47 +0200	[thread overview]
Message-ID: <20150622063647.GA24434@gmail.com> (raw)
In-Reply-To: <20150621204120.GA11833@pd.tnic>

[-- Attachment #1: Type: text/plain, Size: 605 bytes --]


* Borislav Petkov <bp@suse.de> wrote:

> On Sun, Jun 21, 2015 at 10:23:48PM +0200, Luis R. Rodriguez wrote:

> > Nope, well the driver requires huge amounts of work to work with PAT, that 
> > work will likely never be done, so hence the warning. Its our compromise as 
> > only 2 drivers will live on Linux like this and they are both old and rare.
> 
> Hmm, so wasn't the possibility discussed to fail loading instead and issue a 
> single-line pr_warn() when PAT is enabled? Those big WARN() splats will only 
> confuse people...

Absolutely - they are a regression.

Thanks,

	Ingo

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@kernel.org>
To: Borislav Petkov <bp@suse.de>
Cc: "Luis R. Rodriguez" <mcgrof@suse.com>,
	Fengguang Wu <fengguang.wu@intel.com>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	LKP <lkp@01.org>
Subject: Re: [x86/mm/pat, drivers/media/ivtv]  WARNING: CPU: 0 PID: 1 at drivers/media/pci/ivtv/ivtvfb.c:1270 ivtvfb_init()
Date: Mon, 22 Jun 2015 08:36:47 +0200	[thread overview]
Message-ID: <20150622063647.GA24434@gmail.com> (raw)
In-Reply-To: <20150621204120.GA11833@pd.tnic>


* Borislav Petkov <bp@suse.de> wrote:

> On Sun, Jun 21, 2015 at 10:23:48PM +0200, Luis R. Rodriguez wrote:

> > Nope, well the driver requires huge amounts of work to work with PAT, that 
> > work will likely never be done, so hence the warning. Its our compromise as 
> > only 2 drivers will live on Linux like this and they are both old and rare.
> 
> Hmm, so wasn't the possibility discussed to fail loading instead and issue a 
> single-line pr_warn() when PAT is enabled? Those big WARN() splats will only 
> confuse people...

Absolutely - they are a regression.

Thanks,

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@kernel.org>
To: Borislav Petkov <bp@suse.de>
Cc: "Luis R. Rodriguez" <mcgrof@suse.com>,
	Fengguang Wu <fengguang.wu@intel.com>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	LKP <lkp@01.org>
Subject: Re: [x86/mm/pat, drivers/media/ivtv]  WARNING: CPU: 0 PID: 1 at drivers/media/pci/ivtv/ivtvfb.c:1270 ivtvfb_init()
Date: Mon, 22 Jun 2015 08:36:47 +0200	[thread overview]
Message-ID: <20150622063647.GA24434@gmail.com> (raw)
In-Reply-To: <20150621204120.GA11833@pd.tnic>


* Borislav Petkov <bp@suse.de> wrote:

> On Sun, Jun 21, 2015 at 10:23:48PM +0200, Luis R. Rodriguez wrote:

> > Nope, well the driver requires huge amounts of work to work with PAT, that 
> > work will likely never be done, so hence the warning. Its our compromise as 
> > only 2 drivers will live on Linux like this and they are both old and rare.
> 
> Hmm, so wasn't the possibility discussed to fail loading instead and issue a 
> single-line pr_warn() when PAT is enabled? Those big WARN() splats will only 
> confuse people...

Absolutely - they are a regression.

Thanks,

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
Please read the FAQ at  http://www.tux.org/lkml/

  parent reply	other threads:[~2015-06-22  6:36 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-20  7:17 [x86/mm/pat, drivers/media/ivtv] WARNING: CPU: 0 PID: 1 at drivers/media/pci/ivtv/ivtvfb.c:1270 ivtvfb_init() Fengguang Wu
2015-06-20  7:17 ` Fengguang Wu
2015-06-20 11:08 ` Borislav Petkov
2015-06-20 11:08   ` Borislav Petkov
2015-06-20 11:08   ` Borislav Petkov
2015-06-21 20:23   ` Luis R. Rodriguez
2015-06-21 20:23     ` Luis R. Rodriguez
2015-06-21 20:23     ` Luis R. Rodriguez
2015-06-21 20:41     ` Borislav Petkov
2015-06-21 20:41       ` Borislav Petkov
2015-06-21 20:41       ` Borislav Petkov
2015-06-22  1:01       ` Luis R. Rodriguez
2015-06-22  1:01         ` Luis R. Rodriguez
2015-06-22  1:01         ` Luis R. Rodriguez
2015-06-22  7:06         ` Borislav Petkov
2015-06-22  7:06           ` Borislav Petkov
2015-06-22  7:06           ` Borislav Petkov
2015-06-22 17:19           ` Luis R. Rodriguez
2015-06-22 17:19             ` Luis R. Rodriguez
2015-06-22 17:19             ` Luis R. Rodriguez
2015-06-22  6:36       ` Ingo Molnar [this message]
2015-06-22  6:36         ` Ingo Molnar
2015-06-22  6:36         ` Ingo Molnar

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