Messages in this thread | | | Date | Sat, 1 Nov 2014 18:51:29 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH] x86, cpu: trivial printk formatting fixes |
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On Sat, Nov 01, 2014 at 05:38:18PM +0000, Steven Honeyman wrote: > On 1 November 2014 17:19, Borislav Petkov <bp@alien8.de> wrote: > > On Sat, Nov 01, 2014 at 03:44:56PM +0000, Steven Honeyman wrote: > >> A 2 line printk makes dmesg output messy, because the second line does not get a timestamp. > >> For example: > >> > >> [ 0.012863] CPU0: Thermal monitoring enabled (TM1) > >> [ 0.012869] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 > >> Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 > >> [ 0.012958] Freeing SMP alternatives memory: 28K (ffffffff81d86000 - ffffffff81d8d000) > >> [ 0.014961] dmar: Host address width 39 > > > > It looks just fine here, albeit with repeated timestamp: > > > > $ dmesg | grep -E "[id]TLB" > > [ 0.269607] Last level iTLB entries: 4KB 512, 2MB 1024, 4MB 512 > > [ 0.269607] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 512, 1GB 0 > > That's strange! Is it the same for the other one? I just double
dmesg | grep ENERGY [ 0.061976] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' [ 0.061976] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
> checked on the slight chance I had an alias causing problems etc, but > that wasn't the case: > > $ 'dmesg'|'grep' ENERGY > [ 0.010557] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' > ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) > $ dmesg --version && grep --version > dmesg from util-linux 2.25.2 > grep (GNU grep) 2.20
$ dmesg --version && grep --version dmesg from util-linux 2.20.1 grep (GNU grep) 2.20
I've upgraged util-linux (for dmesg) on the other box:
$ dmesg --version && grep --version dmesg from util-linux 2.25.1 grep (GNU grep) 2.18
and now I get:
dmesg | grep -E "[id]TLB" [ 0.269607] Last level iTLB entries: 4KB 512, 2MB 1024, 4MB 512 Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 512, 1GB 0
So I'd say it looks like a regression in dmesg itself.
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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