From: Borislav Petkov <bp@alien8.de>
To: "Baicar, Tyler" <tbaicar@codeaurora.org>
Cc: christoffer.dall@linaro.org, marc.zyngier@arm.com,
pbonzini@redhat.com, rkrcmar@redhat.com, linux@armlinux.org.uk,
catalin.marinas@arm.com, will.deacon@arm.com, rjw@rjwysocki.net,
lenb@kernel.org, matt@codeblueprint.co.uk,
robert.moore@intel.com, lv.zheng@intel.com, nkaje@codeaurora.org,
zjzhang@codeaurora.org, mark.rutland@arm.com,
james.morse@arm.com, akpm@linux-foundation.org,
eun.taik.lee@samsung.com, sandeepa.s.prabhu@gmail.com,
labbott@redhat.com, shijie.huang@arm.com,
rruigrok@codeaurora.org, paul.gortmaker@windriver.com,
tn@semihalf.com, fu.wei@linaro.org, rostedt@goodmis.org,
bristot@redhat.com, linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-efi@vger.kernel.org, devel@acpica.org,
Suzuki.Poulose@arm.com, punit.agrawal@arm.com, astone@redhat.com,
harba@codeaurora.org, hanjun.guo@linaro.org,
john.garry@huawei.com, shiju.jose@huawei.com, joe@perches.com,
rafael@kernel.org, tony.luck@intel.com, gengdongjiu@huawei.com,
xiexiuqi@huawei.com
Subject: Re: [PATCH V15 03/11] cper: add timestamp print to CPER status printing
Date: Fri, 21 Apr 2017 19:26:03 +0200 [thread overview]
Message-ID: <20170421172603.4574wonnm5tgvbcn@pd.tnic> (raw)
In-Reply-To: <35cc4ae0-e8fa-fd3a-5d7f-243ed2e82ea0@codeaurora.org>
On Fri, Apr 21, 2017 at 10:04:35AM -0600, Baicar, Tyler wrote:
> This is basically what I already had in v14...you asked to move it into a
> different if-statement? https://lkml.org/lkml/2017/4/12/397
Well, clearly I've been smoking some nasty potent sh*t. :-\
/me goes and looks at the spec:
"Bit 0 – Timestamp is precise if this bit is set and correlates to the
time of the error event."
So why are we even printing the timestamp when !precise?
IOW, I think we should do:
if (!(timestamp[3] & 0x1))
printk("%stimestamp imprecise\n", pfx);
else {
sec = ..
min = ...
...
}
and print the actual values only when the timestamp is precise.
Otherwise it has *some* values which could just as well be completely
random. And it's not like we're reporting the error tomorrow - it is
mostly a couple of seconds from logging to the fw pushing it out...
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2017-04-21 17:40 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-18 23:05 [PATCH V15 00/11] Add UEFI 2.6 and ACPI 6.1 updates for RAS on ARM64 Tyler Baicar
2017-04-18 23:05 ` [PATCH V15 01/11] acpi: apei: read ack upon ghes record consumption Tyler Baicar
2017-04-19 18:31 ` Borislav Petkov
2017-04-19 20:31 ` Baicar, Tyler
2017-04-19 20:41 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 02/11] ras: acpi/apei: cper: add support for generic data v3 structure Tyler Baicar
2017-04-20 11:14 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 03/11] cper: add timestamp print to CPER status printing Tyler Baicar
2017-04-21 12:21 ` Borislav Petkov
2017-04-21 16:04 ` Baicar, Tyler
2017-04-21 17:26 ` Borislav Petkov [this message]
2017-04-21 18:08 ` Baicar, Tyler
2017-04-21 18:12 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 04/11] efi: parse ARM processor error Tyler Baicar
2017-04-21 17:55 ` Borislav Petkov
2017-04-21 18:22 ` Baicar, Tyler
2017-04-24 17:52 ` Borislav Petkov
2017-04-25 16:05 ` Baicar, Tyler
2017-04-25 16:31 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 05/11] arm64: exception: handle Synchronous External Abort Tyler Baicar
2017-04-18 23:05 ` [PATCH V15 06/11] acpi: apei: handle SEA notification type for ARMv8 Tyler Baicar
2017-04-25 17:21 ` Borislav Petkov
2017-04-25 17:41 ` Baicar, Tyler
2017-04-25 17:46 ` Borislav Petkov
2017-05-08 17:28 ` James Morse
2017-05-08 19:59 ` Baicar, Tyler
2017-05-12 16:45 ` James Morse
2017-08-14 7:55 ` Xiongfeng Wang
2017-04-18 23:05 ` [PATCH V15 07/11] acpi: apei: panic OS with fatal error status block Tyler Baicar
2017-04-28 13:07 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 08/11] efi: print unrecognized CPER section Tyler Baicar
2017-05-05 13:27 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 09/11] ras: acpi / apei: generate trace event for " Tyler Baicar
2017-05-05 17:53 ` Borislav Petkov
2017-05-05 18:44 ` Steven Rostedt
2017-04-18 23:05 ` [PATCH V15 10/11] trace, ras: add ARM processor error trace event Tyler Baicar
2017-05-08 17:34 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 11/11] arm/arm64: KVM: add guest SEA support Tyler Baicar
2017-05-08 17:40 ` Borislav Petkov
2017-05-08 19:54 ` Baicar, Tyler
2017-05-08 20:22 ` Borislav Petkov
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