From: Borislav Petkov <bp@alien8.de>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: Tony Luck <tony.luck@gmail.com>,
Chen Gong <gong.chen@linux.intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-acpi <linux-acpi@vger.kernel.org>,
Lance Ortiz <lance.ortiz@hp.com>
Subject: Re: [PATCH 7/8] ACPI, APEI, CPER: Cleanup CPER memory error output format
Date: Tue, 15 Oct 2013 14:29:58 +0200 [thread overview]
Message-ID: <20131015122958.GD7908@pd.tnic> (raw)
In-Reply-To: <525D2A07.6080201@linux.vnet.ibm.com>
On Tue, Oct 15, 2013 at 05:11:59PM +0530, Naveen N. Rao wrote:
> If so, how will disabling dmesg output and switching to a trace event
> help? The user-space program will still break unless they add support
> for that trace event, right?
Well, as yourself this: what happens to a userspace program which relies
on this *exact* error message format and greps dmesg?
> I'm not sure if we actually provide guarantees w.r.t kernel log
> messages. The issue in this specific scenario is the sheer verbosity
> of the log messages.
No, the issue is what I said above: userspace programs expecting exactly
this output. Once we exposed it to userspace, we cannot simply assume
that nothing is using it.
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2013-10-15 12:30 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-11 6:32 Extended H/W error log driver Chen, Gong
2013-10-11 6:32 ` [PATCH 1/8] ACPI, APEI, CPER: Fix status check during error printing Chen, Gong
2013-10-11 8:50 ` Borislav Petkov
2013-10-11 6:32 ` [PATCH 2/8] ACPI, CPER: Update cper info Chen, Gong
2013-10-11 9:06 ` Borislav Petkov
2013-10-11 9:06 ` Borislav Petkov
2013-10-11 15:47 ` Borislav Petkov
2013-10-16 1:57 ` Joe Perches
2013-10-16 2:46 ` Chen Gong
2013-10-16 3:10 ` Joe Perches
2013-10-15 18:17 ` Naveen N. Rao
2013-10-16 1:39 ` Chen Gong
2013-10-17 12:21 ` Naveen N. Rao
2013-10-18 11:06 ` Naveen N. Rao
2013-10-11 6:32 ` [PATCH 3/8] ACPI, x86: Extended error log driver for x86 platform Chen, Gong
2013-10-11 15:24 ` Borislav Petkov
2013-10-14 3:16 ` Chen Gong
2013-10-14 10:26 ` Borislav Petkov
2013-10-14 13:03 ` Chen Gong
2013-10-14 13:28 ` Borislav Petkov
2013-10-14 16:50 ` Tony Luck
2013-10-14 17:07 ` Borislav Petkov
2013-10-14 17:16 ` Tony Luck
2013-10-11 6:32 ` [PATCH 4/8] DMI: Parse memory device (type 17) in SMBIOS Chen, Gong
2013-10-11 15:40 ` Borislav Petkov
2013-10-14 3:21 ` Chen Gong
2013-10-14 10:30 ` Borislav Petkov
2013-10-15 19:00 ` Naveen N. Rao
2013-10-11 6:32 ` [PATCH 5/8] ACPI, APEI, CPER: Add UEFI 2.4 support for memory error Chen, Gong
2013-10-11 15:41 ` Borislav Petkov
2013-10-15 17:26 ` Naveen N. Rao
2013-10-16 1:35 ` Chen Gong
2013-10-11 6:32 ` [PATCH 6/8] ACPI, APEI, CPER: Enhance memory reporting capability Chen, Gong
2013-10-11 15:49 ` Borislav Petkov
2013-10-15 19:18 ` Naveen N. Rao
2013-10-11 6:32 ` [PATCH 7/8] ACPI, APEI, CPER: Cleanup CPER memory error output format Chen, Gong
2013-10-11 16:02 ` Borislav Petkov
2013-10-14 4:55 ` Chen Gong
2013-10-14 10:36 ` Borislav Petkov
2013-10-14 17:12 ` Tony Luck
2013-10-14 18:47 ` Borislav Petkov
2013-10-14 21:03 ` Tony Luck
2013-10-14 21:50 ` Borislav Petkov
2013-10-15 9:18 ` Chen Gong
2013-10-15 10:13 ` Borislav Petkov
2013-10-15 11:28 ` Naveen N. Rao
2013-10-15 11:41 ` Naveen N. Rao
2013-10-15 12:29 ` Borislav Petkov [this message]
2013-10-15 16:42 ` Joe Perches
2013-10-15 16:49 ` Tony Luck
2013-10-15 16:56 ` Borislav Petkov
2013-10-11 6:32 ` [PATCH 8/8] ACPI / trace: Add trace interface for eMCA driver Chen, Gong
2013-10-11 7:52 ` Borislav Petkov
2013-10-11 16:14 ` Borislav Petkov
2013-10-14 7:07 ` Chen Gong
2013-10-15 16:54 ` Naveen N. Rao
2013-10-15 17:00 ` Borislav Petkov
2013-10-15 17:30 ` Naveen N. Rao
2013-10-15 17:47 ` Borislav Petkov
2013-10-16 0:43 ` Mauro Carvalho Chehab
2013-10-16 9:16 ` Borislav Petkov
2013-10-16 10:35 ` Mauro Carvalho Chehab
2013-10-16 10:42 ` Borislav Petkov
2013-10-16 11:55 ` Mauro Carvalho Chehab
2013-10-16 12:20 ` Borislav Petkov
2013-10-16 20:47 ` Luck, Tony
2013-10-17 10:34 ` Mauro Carvalho Chehab
2013-10-17 21:35 ` Luck, Tony
2013-10-16 20:35 ` Luck, Tony
2013-10-17 10:32 ` Mauro Carvalho Chehab
2013-10-16 9:50 ` Chen Gong
2013-10-16 10:49 ` Borislav Petkov
2013-10-18 11:04 ` Naveen N. Rao
2013-10-11 7:00 ` Extended H/W error log driver Joe Perches
2013-10-11 8:04 ` Borislav Petkov
2013-10-11 14:54 ` Luck, Tony
2013-10-11 14:54 ` Luck, Tony
2013-10-11 15:27 ` Borislav Petkov
2013-10-14 6:49 ` Chen Gong
2013-10-14 10:55 ` Borislav Petkov
2013-10-15 4:07 ` Chen Gong
2013-10-15 9:28 ` Borislav Petkov
2013-10-15 16:15 ` Tony Luck
2013-10-15 19:10 ` Naveen N. Rao
2013-10-15 19:23 ` Borislav Petkov
2013-10-17 12:07 ` Naveen N. Rao
2013-10-17 13:04 ` Borislav Petkov
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